1016 lines
37 KiB
C#
1016 lines
37 KiB
C#
using System;
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using System.Data;
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using System.Data.SqlClient;
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using System.Collections;
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namespace BLL
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{
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/// <summary>
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/// 所有数据访问层类的基类，封装了一些数据库访问的保护方法
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/// </summary>
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///
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public class SQLHelper
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{
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private static string connectionString = Funs.ConnString;
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private static SqlConnection Connection = new SqlConnection(connectionString);
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public static SqlConnection GetConn()
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{
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return Connection;
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}
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/// <summary>
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///被RunProcedure调用 构建 SqlCommand 对象.
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/// </summary>
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/// <param name="storedProcName">Name of the stored procedure in the DB, eg. sp_DoTask</param>
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/// <param name="parameters">Array of IDataParameter objects containing parameters to the stored proc</param>
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/// <returns>Newly instantiated SqlCommand instance</returns>
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private static SqlCommand BuildIntCommand(string storedProcName, IDataParameter[] parameters)
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{
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SqlCommand command = BuildQueryCommand(storedProcName, parameters);
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command.Parameters.Add(new SqlParameter("ReturnValue",
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SqlDbType.Int,
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4, /* Size */
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ParameterDirection.ReturnValue,
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false, /* is nullable */
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0, /* byte precision */
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0, /* byte scale */
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string.Empty,
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DataRowVersion.Default,
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null));
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return command;
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}
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/// <summary>
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/// 在BuildIntCommand中被调用的私有函数，用于构建 SqlCommand 对象.
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/// </summary>
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/// <param name="storedProcName">Name of the stored procedure</param>
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/// <param name="parameters">Array of IDataParameter objects</param>
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/// <returns></returns>
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private static SqlCommand BuildQueryCommand(string storedProcName, IDataParameter[] parameters)
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{
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(storedProcName, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.StoredProcedure//执行存储过程
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};
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foreach (SqlParameter parameter in parameters)
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{
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command.Parameters.Add(parameter);
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}
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return command;
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}
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finally
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{
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Connection.Close();
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}
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}
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}
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public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
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{
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int result;
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = BuildIntCommand(storedProcName, parameters);
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command.CommandTimeout = 0;
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rowsAffected = command.ExecuteNonQuery();//执行完存储过程后返回的结果
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result = (int)command.Parameters["ReturnValue"].Value;
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return result;
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}
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finally
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{
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Connection.Close();
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}
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}
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}
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/// <summary>
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/// 通过存储过程获得新ID（存储过程有返回值有个output参数）
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/// </summary>
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/// <param name="storedProcName">存储过程名</param>
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/// <returns></returns>
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public static string RunProcNewId(string storedProcName)
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{
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string str = "";
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(storedProcName, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.StoredProcedure
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};
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command.Parameters.Add(new SqlParameter("@returnVal", SqlDbType.VarChar, 50));
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command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
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command.ExecuteNonQuery();
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str = command.Parameters["@returnVal"].Value.ToString();
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}
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finally
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{
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Connection.Close();
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}
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return str;
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}
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}
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/// <summary>
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/// 通过存储过程名和表名以及列名获得新ID（存储过程有返回值有个output参数）
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/// </summary>
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/// <param name="storedProcName">存储过程名</param>
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/// <param name="tableName">表名</param>
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/// <param name="columnName">列名</param>
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/// <returns></returns>
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public static string RunProcNewId(string storedProcName, string tableName, string columnName)
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{
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string str = "";
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(storedProcName, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.StoredProcedure
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};
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SqlParameter[] values = new SqlParameter[]
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{
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new SqlParameter("@tableName", tableName),
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new SqlParameter("@columnName", columnName),
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new SqlParameter("@returnVal", SqlDbType.VarChar, 10)
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};
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command.Parameters.AddRange(values);
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command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
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command.ExecuteNonQuery();
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str = command.Parameters["@returnVal"].Value.ToString();
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}
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finally
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{
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Connection.Close();
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}
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return str;
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}
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}
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/// <summary>
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/// 通过存储过程名和表名以及列名获得新ID（存储过程有返回值有个output参数）
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/// </summary>
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/// <param name="storedProcName">存储过程名</param>
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/// <param name="tableName">表名</param>
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/// <param name="columnName">列名</param>
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/// <param name="perfix">前缀</param>
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/// <returns>递增的新ID</returns>
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public static string RunProcNewId(string storedProcName, string tableName, string columnName, string projectId, string prefix)
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{
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string str = "";
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(storedProcName, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.StoredProcedure
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};
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SqlParameter[] values = new SqlParameter[]
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{
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new SqlParameter("@tableName", tableName),
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new SqlParameter("@columnName", columnName),
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new SqlParameter("@projectId", projectId),
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new SqlParameter("@prefix", prefix),
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new SqlParameter("@returnVal", SqlDbType.VarChar, 30)
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};
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command.Parameters.AddRange(values);
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command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
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command.ExecuteNonQuery();
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str = command.Parameters["@returnVal"].Value.ToString();
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}
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finally
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{
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Connection.Close();
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}
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return str;
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}
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}
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/// <summary>
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/// 通过存储过程名和表名以及列名获得新ID（存储过程有返回值有个output参数）
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/// </summary>
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/// <param name="storedProcName">存储过程名</param>
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/// <param name="tableName">表名</param>
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/// <param name="columnName">列名</param>
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/// <param name="perfix">前缀</param>
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/// <returns>递增的新ID</returns>
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public static string RunProcNewId(string storedProcName, string tableName, string columnName, string prefix)
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{
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string str = "";
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(storedProcName, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.StoredProcedure
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};
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SqlParameter[] values = new SqlParameter[]
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{
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new SqlParameter("@tableName", tableName),
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new SqlParameter("@columnName", columnName),
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new SqlParameter("@prefix", prefix),
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new SqlParameter("@returnVal", SqlDbType.VarChar, 30)
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};
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command.Parameters.AddRange(values);
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command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
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command.ExecuteNonQuery();
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str = command.Parameters["@returnVal"].Value.ToString();
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}
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finally
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{
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Connection.Close();
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}
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return str;
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}
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}
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/// <summary>
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/// 通过存储过程获得DataTable
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/// </summary>
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/// <param name="storedProcName">存储过程名</param>
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/// <returns></returns>
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public static DataTable GetDataTableRunProc(string storedProcName, params SqlParameter[] parameters)
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{
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DataTable dataTable = new DataTable();
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(storedProcName, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.StoredProcedure
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};
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if (parameters != null)
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{
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command.Parameters.AddRange(parameters);
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}
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SqlDataAdapter adapter = new SqlDataAdapter(command);
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adapter.Fill(dataTable);
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}
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finally
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{
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Connection.Close();
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}
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return dataTable;
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}
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}
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/// <summary>
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/// 通过存储过程获得DataTable
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/// </summary>
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/// <param name="storedProcName">存储过程名</param>
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/// <returns></returns>
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public static DataTable GetDataTableRunText(string strSql, params SqlParameter[] parameters)
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{
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DataTable dataTable = new DataTable();
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(strSql, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.Text
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};
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if (parameters != null)
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{
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command.Parameters.AddRange(parameters);
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}
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SqlDataAdapter adapter = new SqlDataAdapter(command);
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adapter.Fill(dataTable);
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}
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finally
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{
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Connection.Close();
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}
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return dataTable;
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}
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}
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/// <summary>
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/// Will run a stored procedure, can only be called by those classes deriving
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/// from this base. It returns a SqlDataReader containing the result of the stored
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/// procedure.
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/// </summary>
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/// <param name="storedProcName">Name of the stored procedure</param>
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/// <param name="parameters">Array of parameters to be passed to the procedure</param>
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/// <returns>A newly instantiated SqlDataReader object</returns>
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public static SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters)
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{
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SqlDataReader returnReader;
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = BuildQueryCommand(storedProcName, parameters);
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command.CommandTimeout = 0;
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command.CommandType = CommandType.StoredProcedure;
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returnReader = command.ExecuteReader();
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}
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finally { Connection.Close(); }
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return returnReader;
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}
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}
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/// <summary>
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/// 获取字符串
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/// </summary>
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/// <param name="sql">sql语句</param>
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/// <returns>字符串</returns>
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public static string getStr(string sql)
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{
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string str = "";
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(sql, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.Text
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};
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str = command.ExecuteScalar().ToString();
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}
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finally
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{
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Connection.Close();
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}
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return str;
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}
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}
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public static int GetIntValue(string sql)
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{
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int i = 0;
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(sql, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.Text
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};
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i = Convert.ToInt32(command.ExecuteScalar());
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}
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finally
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{
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Connection.Close();
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}
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return i;
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}
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}
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/// <summary>
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/// 执行SQL语句
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/// </summary>
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/// <param name="sql">sql语句</param>
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public static void ExecutSql(string sql)
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{
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(sql, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.Text
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};
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command.ExecuteNonQuery();
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}
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finally
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{
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Connection.Close();
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary>
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/// Creates a DataSet by running the stored procedure and placing the results
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/// of the query/proc into the given tablename.
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/// </summary>
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/// <param name="storedProcName"></param>
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/// <param name="parameters"></param>
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/// <param name="tableName"></param>
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/// <returns></returns>
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public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName)
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{
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DataSet dataSet = new DataSet();
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlDataAdapter sqlDA = new SqlDataAdapter
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{
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SelectCommand = BuildQueryCommand(storedProcName, parameters)
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};
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sqlDA.SelectCommand.CommandTimeout = 0;
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sqlDA.Fill(dataSet, tableName);
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}
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finally
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{
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Connection.Close();
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}
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return dataSet;
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}
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}
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/// <summary>
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/// Takes an -existing- dataset and fills the given table name with the results
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/// of the stored procedure.
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/// </summary>
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/// <param name="storedProcName"></param>
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/// <param name="parameters"></param>
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/// <param name="dataSet"></param>
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/// <param name="tableName"></param>
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/// <returns></returns>
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public static void RunProcedure(string storedProcName, IDataParameter[] parameters, DataSet dataSet, string tableName)
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{
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlDataAdapter sqlDA = new SqlDataAdapter
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{
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SelectCommand = BuildIntCommand(storedProcName, parameters)
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};
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sqlDA.SelectCommand.CommandTimeout = 0;
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sqlDA.Fill(dataSet, tableName);
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}
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finally
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{
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Connection.Close();
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}
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}
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}
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/// <summary>
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/// 用于简单的Sql查询，返回DataSet
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/// </summary>
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/// <param name="strSql"></param>
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/// <param name="tableName"></param>
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/// <returns></returns>
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public static DataSet RunSqlString(string strSql, string tableName)
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{
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DataSet dataSet = new DataSet();
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(strSql, Connection)
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{
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CommandTimeout = 0
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};
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SqlDataAdapter sqlDA = new SqlDataAdapter
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{
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SelectCommand = command
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};
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sqlDA.Fill(dataSet, tableName);
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}
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finally
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{
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Connection.Close();
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}
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return dataSet;
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}
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}
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/// <summary>
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/// 用于简单的Sql查询
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/// </summary>
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/// <param name="strSql"></param>
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/// <param name="dataSet"></param>
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/// <param name="tableName"></param>
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public static void RunProcedure(string strSql, DataSet dataSet, string tableName)
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{
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(strSql, Connection)
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{
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CommandTimeout = 0
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};
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SqlDataAdapter sqlDA = new SqlDataAdapter
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{
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SelectCommand = command
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};
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sqlDA.SelectCommand.CommandTimeout = 0;
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sqlDA.Fill(dataSet, tableName);
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}
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finally
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{
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Connection.Close();
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}
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}
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}
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/// <summary>
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/// 用于简单的Sql执行，不返回值，用于数据操作类型的
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/// </summary>
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/// <param name="strSql"></param>
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/// <param name="result"></param>
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public static void RunSqlString(string strSql, out int result)
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{
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using (SqlConnection Connection = new SqlConnection(connectionString))
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{
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try
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{
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Connection.Open();
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SqlCommand command = new SqlCommand(strSql, Connection)
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{
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CommandTimeout = 0,
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CommandType = CommandType.Text
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};
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result = command.ExecuteNonQuery();
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}
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finally
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{
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Connection.Close();
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}
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}
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}
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/* public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName )
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{
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DataSet dataSet = new DataSet();
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if (Connection.State == ConnectionState.Open) Connection.Close();
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Connection.Open();
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SqlDataAdapter sqlDA = new SqlDataAdapter();
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sqlDA.SelectCommand = BuildQueryCommand( storedProcName, parameters );
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sqlDA.Fill( dataSet, tableName );
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Connection.Close();
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||
return dataSet;
|
||
}*/
|
||
|
||
/// 返回存储过程执行的结果集
|
||
/// </summary>
|
||
/// <param name="pur_name">存储过程名称</param>
|
||
/// <param name="parmList">存储过程的{参数--值}的集合</param>
|
||
// 返回存储过程执行的结果集。
|
||
public static DataTable RunProcedureGetTable(string pur_name, Hashtable parmList)
|
||
{
|
||
DataTable dt = new DataTable();
|
||
DataRow dr;
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
// 调用存储过程pur_name。
|
||
SqlCommand sqlCmd = new SqlCommand(pur_name, Connection)
|
||
{
|
||
CommandTimeout = 0,
|
||
CommandType = CommandType.StoredProcedure
|
||
};
|
||
// 为输入参数赋值。
|
||
foreach (string parm in parmList.Keys)
|
||
{
|
||
sqlCmd.Parameters.Add(new SqlParameter("@" + parm, parmList[parm]));
|
||
}
|
||
// 打开连接。
|
||
sqlCmd.Connection.Open();
|
||
SqlDataReader dreader = null;
|
||
try
|
||
{
|
||
dreader = sqlCmd.ExecuteReader();
|
||
for (int i = 0; i < dreader.FieldCount; i++)
|
||
{
|
||
DataColumn myDataColumn;
|
||
myDataColumn = new DataColumn
|
||
{
|
||
DataType = System.Type.GetType(dreader.GetFieldType(i).ToString()),
|
||
ColumnName = dreader.GetName(i),
|
||
Caption = dreader.GetName(i)
|
||
};
|
||
dt.Columns.Add(myDataColumn);
|
||
}
|
||
while (dreader.Read())
|
||
{
|
||
dr = dt.NewRow();
|
||
for (int i = 0; i < dreader.FieldCount; i++)
|
||
{
|
||
dr[i] = dreader[i];
|
||
}
|
||
dt.Rows.Add(dr);
|
||
}
|
||
dreader.Close();
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
string str = ex.Message.ToString();
|
||
// 不成功则给出提示。
|
||
throw new Exception(ex.ToString());
|
||
}
|
||
finally
|
||
{
|
||
// 关闭连接。
|
||
sqlCmd.Connection.Close();
|
||
}
|
||
|
||
return dt;
|
||
}
|
||
}
|
||
|
||
/// </summary>
|
||
/// <param name="strSql">sql串</param>
|
||
/// <param name="parmList">sql{参数--值}的集合</param>
|
||
public static DataTable RunSqlGetTable(string strSql)
|
||
{
|
||
DataTable dt = new DataTable();
|
||
DataRow dr;
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
// 调用存储过程pur_name。
|
||
SqlCommand sqlCmd = new SqlCommand(strSql, Connection)
|
||
{
|
||
CommandTimeout = 0
|
||
};
|
||
// 打开连接。
|
||
sqlCmd.Connection.Open();
|
||
SqlDataReader dreader = null;
|
||
try
|
||
{
|
||
dreader = sqlCmd.ExecuteReader();
|
||
for (int i = 0; i < dreader.FieldCount; i++)
|
||
{
|
||
DataColumn myDataColumn;
|
||
myDataColumn = new DataColumn
|
||
{
|
||
DataType = System.Type.GetType(dreader.GetFieldType(i).ToString()),
|
||
ColumnName = dreader.GetName(i),
|
||
Caption = dreader.GetName(i)
|
||
};
|
||
dt.Columns.Add(myDataColumn);
|
||
}
|
||
while (dreader.Read())
|
||
{
|
||
dr = dt.NewRow();
|
||
for (int i = 0; i < dreader.FieldCount; i++)
|
||
{
|
||
dr[i] = dreader[i];
|
||
}
|
||
dt.Rows.Add(dr);
|
||
}
|
||
dreader.Close();
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
// 不成功则给出提示。
|
||
throw new Exception(ex.ToString());
|
||
}
|
||
finally
|
||
{
|
||
// 关闭连接。
|
||
sqlCmd.Connection.Close();
|
||
}
|
||
|
||
return dt;
|
||
}
|
||
}
|
||
|
||
|
||
/// 返回存储过程执行的结果集
|
||
/// </summary>
|
||
/// <param name="pur_name">存储过程名称</param>
|
||
/// <param name="parmList">存储过程的{参数--值}的集合</param>
|
||
public static void RunProcedure(string pur_name, Hashtable parmList)
|
||
{
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
// 调用存储过程pur_name。
|
||
SqlCommand sqlCmd = new SqlCommand(pur_name, Connection)
|
||
{
|
||
CommandTimeout = 0,
|
||
CommandType = CommandType.StoredProcedure
|
||
};
|
||
// 为输入参数赋值。
|
||
foreach (string parm in parmList.Keys)
|
||
{
|
||
sqlCmd.Parameters.Add(new SqlParameter("@" + parm, parmList[parm]));
|
||
}
|
||
// 打开连接。
|
||
sqlCmd.Connection.Open();
|
||
try
|
||
{
|
||
sqlCmd.ExecuteNonQuery();
|
||
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
// 不成功则给出提示。
|
||
throw new Exception(ex.ToString());
|
||
}
|
||
finally
|
||
{
|
||
// 关闭连接。
|
||
sqlCmd.Connection.Close();
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/// 返回存储过程执行的结果集
|
||
/// </summary>
|
||
/// <param name="pur_name">存储过程名称</param>
|
||
/// <param name="parmList">存储过程的{参数--值}的集合</param>
|
||
public static void RunProcedure(string pur_name, Hashtable parmList, ref int returnValue)
|
||
{
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
// 调用存储过程pur_name。
|
||
SqlCommand sqlCmd = new SqlCommand(pur_name, Connection)
|
||
{
|
||
CommandTimeout = 0,
|
||
CommandType = CommandType.StoredProcedure
|
||
};
|
||
// 为输入参数赋值。
|
||
foreach (string parm in parmList.Keys)
|
||
{
|
||
sqlCmd.Parameters.Add(new SqlParameter("@" + parm, parmList[parm]));
|
||
}
|
||
// 打开连接。
|
||
sqlCmd.Connection.Open();
|
||
try
|
||
{
|
||
returnValue = sqlCmd.ExecuteNonQuery();
|
||
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
// 不成功则给出提示。
|
||
throw new Exception(ex.ToString());
|
||
}
|
||
finally
|
||
{
|
||
// 关闭连接。
|
||
sqlCmd.Connection.Close();
|
||
}
|
||
}
|
||
}
|
||
|
||
private static void AddParameterToCommand(SqlCommand cmd, SqlParameter[] param)
|
||
{
|
||
foreach (SqlParameter p in param)
|
||
{
|
||
cmd.Parameters.Add(p);
|
||
}
|
||
}
|
||
|
||
private static SqlCommand CreateCommand(CommandType commandType,
|
||
string commandText, SqlParameter[] param)
|
||
{
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
SqlCommand cmd = new SqlCommand
|
||
{
|
||
CommandTimeout = 0,
|
||
CommandType = commandType,
|
||
Connection = Connection
|
||
};
|
||
if (param != null)
|
||
{
|
||
AddParameterToCommand(cmd, param);
|
||
}
|
||
cmd.CommandText = commandText;
|
||
return cmd;
|
||
}
|
||
}
|
||
|
||
|
||
public static int ExecuteCommand(CommandType commandType,
|
||
string commandText, SqlParameter[] param)
|
||
{
|
||
SqlCommand cmd = CreateCommand(commandType, commandText, param);
|
||
cmd.CommandTimeout = 0;
|
||
SqlTransaction trans = null;
|
||
|
||
try
|
||
{
|
||
cmd.Connection.Open();
|
||
trans = cmd.Connection.BeginTransaction();
|
||
cmd.Transaction = trans;
|
||
int i = cmd.ExecuteNonQuery();
|
||
trans.Commit();
|
||
|
||
return i;
|
||
}
|
||
catch (SqlException se)
|
||
{
|
||
trans.Rollback();
|
||
throw se;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
trans.Rollback();
|
||
throw ex;
|
||
}
|
||
finally
|
||
{
|
||
cmd.Connection.Close();
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 通过存储过程名和表名以及列名获得新ID（存储过程有返回值有个output参数）
|
||
/// </summary>
|
||
/// <param name="storedProcName">存储过程名</param>
|
||
/// <param name="tableName">表名</param>
|
||
/// <param name="columnName">列名</param>
|
||
/// <param name="projectId">项目号</param>
|
||
/// <returns>递增的新版本号</returns>
|
||
public static string RunProcNewId2(string storedProcName, string tableName, string columnName, string projectId)
|
||
{
|
||
string str = "";
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
try
|
||
{
|
||
Connection.Open();
|
||
SqlCommand command = new SqlCommand(storedProcName, Connection)
|
||
{
|
||
CommandType = CommandType.StoredProcedure
|
||
};
|
||
SqlParameter[] values = new SqlParameter[]
|
||
{
|
||
new SqlParameter("@tableName", tableName),
|
||
new SqlParameter("@columnName", columnName),
|
||
new SqlParameter("@projectId", projectId),
|
||
new SqlParameter("@returnVal", SqlDbType.VarChar, 30)
|
||
};
|
||
command.Parameters.AddRange(values);
|
||
command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
|
||
command.ExecuteNonQuery();
|
||
str = command.Parameters["@returnVal"].Value.ToString();
|
||
}
|
||
finally
|
||
{
|
||
Connection.Close();
|
||
}
|
||
return str;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 通过存储过程名和表名以及列名获得新ID（存储过程有返回值有个output参数）
|
||
/// </summary>
|
||
/// <param name="storedProcName">存储过程名</param>
|
||
/// <param name="tableName">表名</param>
|
||
/// <param name="columnName">列名</param>
|
||
/// <param name="perfix">前缀</param>
|
||
/// <returns>递增的新ID</returns>
|
||
public static string RunProcNewIdByProjectId(string storedProcName, string tableName, string columnName, string projectId, string prefix)
|
||
{
|
||
string str = "";
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
try
|
||
{
|
||
Connection.Open();
|
||
SqlCommand command = new SqlCommand(storedProcName, Connection)
|
||
{
|
||
CommandType = CommandType.StoredProcedure
|
||
};
|
||
SqlParameter[] values = new SqlParameter[]
|
||
{
|
||
new SqlParameter("@tableName", tableName),
|
||
new SqlParameter("@columnName", columnName),
|
||
new SqlParameter("@projectId", projectId),
|
||
new SqlParameter("@prefix", prefix),
|
||
new SqlParameter("@returnVal", SqlDbType.VarChar, 50)
|
||
};
|
||
command.Parameters.AddRange(values);
|
||
command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
|
||
command.ExecuteNonQuery();
|
||
str = command.Parameters["@returnVal"].Value.ToString();
|
||
}
|
||
finally
|
||
{
|
||
Connection.Close();
|
||
}
|
||
return str;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 创建一个对象锁
|
||
/// </summary>
|
||
private static object newIdLocker = new object();
|
||
|
||
/// <summary>
|
||
/// 生成一个新的用于指定表的主键。
|
||
/// </summary>
|
||
/// <param name="table"></param>
|
||
/// <returns></returns>
|
||
public static string GetNewID(Type table)
|
||
{
|
||
lock (newIdLocker)
|
||
{
|
||
return Guid.NewGuid().ToString();
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 生成一个新的用于指定表的主键。
|
||
/// </summary>
|
||
/// <returns></returns>
|
||
public static string GetNewID()
|
||
{
|
||
lock (newIdLocker)
|
||
{
|
||
return Guid.NewGuid().ToString();
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 表数据中的主键最大值
|
||
/// </summary>
|
||
/// <param name="tableName">表名</param>
|
||
/// <param name="keyColumnName">主键名</param>
|
||
/// <returns>主键最大值</returns>
|
||
public static int GetMaxId(string tableName, string ColumnName)
|
||
{
|
||
int maxId = 0;
|
||
string str = "SELECT (ISNULL(MAX(" + ColumnName + "),0)+1) from " + tableName + "";
|
||
maxId = GetIntValue(str);
|
||
return maxId;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 通过存储过程获取数据
|
||
/// </summary>
|
||
/// <param name="storedProcName"></param>
|
||
/// <returns></returns>
|
||
public static int RunProcGetHsseKq(string ProjectId,DateTime startTime,DateTime endTime,string UnitId)
|
||
{
|
||
string str = "";
|
||
using (SqlConnection Connection = new SqlConnection(connectionString))
|
||
{
|
||
try
|
||
{
|
||
Connection.Open();
|
||
SqlCommand command = new SqlCommand("SpGetHsseKq", Connection)
|
||
{
|
||
CommandTimeout = 0,
|
||
CommandType = CommandType.StoredProcedure
|
||
};
|
||
SqlParameter[] values = new SqlParameter[]
|
||
{
|
||
new SqlParameter("@ProjectId", ProjectId),
|
||
new SqlParameter("@startTime", startTime.ToString()),
|
||
new SqlParameter("@endTime", endTime.ToString()),
|
||
new SqlParameter("@UnitId", UnitId),
|
||
new SqlParameter("@returnVal", SqlDbType.Int)
|
||
};
|
||
command.Parameters.AddRange(values);
|
||
command.Parameters["@returnVal"].Direction = ParameterDirection.Output;
|
||
command.ExecuteNonQuery();
|
||
str = command.Parameters["@returnVal"].Value.ToString();
|
||
}
|
||
finally
|
||
{
|
||
Connection.Close();
|
||
}
|
||
return Convert.ToInt32(str);
|
||
}
|
||
}
|
||
}
|
||
}
|