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c#实现数据库事务示例分享

2019年07月18日  | 移动技术网IT编程  | 我要评论


复制代码 代码如下:

using system;
using system.data.sqlclient;

namespace executesqltran
{
    class program
    {
        class result<t>
        {
            public t data;
            public string message;
            public bool success;
            public string stacktrace;
        }

        struct executeableunit
        {
            public string sql;
            public sqlparameter[] param;
        }

        /// <summary>
        /// 执行多条sql语句，实现数据库事务。
        /// </summary>
        /// <param name="sqlstringlist">sql语句的哈希表（key为sql语句，value是该语句的sqlparameter[]）</param>
        private static result<int> executesqltransaction(params executeableunit[] executeableunits)
        {
            using (sqlconnection connection = new sqlconnection(""))
            {
                connection.open();
                sqlcommand command = connection.createcommand();
                sqltransaction transaction = connection.begintransaction();
                command.connection = connection;
                command.transaction = transaction;
                int result = 0;
                try
                {
                    foreach(executeableunit exeunit in executeableunits)
                    {
                        command.commandtext = exeunit.sql;
                        if(exeunit.param.getlength(1) > 0)
                        {
                            foreach(sqlparameter p in exeunit.param)
                                command.parameters.add(p);
                        }
                        result += command.executenonquery();
                    }
                    transaction.commit();
                }
                catch (exception ex)
                {
                    // attempt to roll back the transaction.
                    try
                    {
                        transaction.rollback();
                    }
                    catch (exception ex2)
                    {
                        return new result<int>()
                        {
                            success = false, message = ex2.message, stacktrace = ex2.stacktrace
                        };
                    }
                    return new result<int>()
                    {
                        success = false, message = ex.message, stacktrace = ex.stacktrace
                    };
                }
                finally
                {
                    // attempt to roll back the transaction.
                    try
                    {
                  connection.close();
                    }
                    catch (exception ex)
                    {
                    }
                }
                return new result<int>()
                {
                    success = true, data = result
                };
            }
        }

        public static void main(string[] args)
        {
        }
    }
}

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