C#中事务处理和非事务处理方法实例分析

本文实例讲述了C#中事务处理和非事务处理方法。分享给大家供大家参考。具体如下：

C#代码如下：

String connectionString = ConfigurationManager.ConnectionStrings["DB_Constr"].ToString();
SqlConnection conn = null;
SqlTransaction trans = null;
try {
conn = new SqlConnection(connectionString);
if (conn.State != ConnectionState.Open) conn.Open();
//开启事务，可以指定事无级别。默认为提交才可以查询
trans = conn.BeginTransaction();
//save(conn, trans);
DbUtils.commit(trans);
} catch (Exception ex) {
DbUtils.rollback(trans);
ClientScript.RegisterStartupScript(this.GetType(), "错误提示", "<script>alert('" + StringUtil.toJsStr(ex.Message) + "');</script>");
} finally {
DbUtils.closeQuietly(conn, trans);
}
String connectionString = ConfigurationManager.ConnectionStrings["DB_Constr"].ToString();
SqlConnection conn = null;
try {
conn = new SqlConnection(connectionString);
if (conn.State != ConnectionState.Open) conn.Open();
} catch (Exception ex) {
ScriptManager.RegisterStartupScript(this, this.GetType(), "mess", "<script>alert('"+StringUtil.toJsStr(ex.Message)+"')</script>", false);
} finally {
DbUtils.closeQuietly(conn);
}

StringUtil.cs如下：

using System;
using System.Collections.Generic;
using System.Text;
namespace Tools{
public sealed class StringUtil {
 public static bool isEmpty(String str) {
  if (str == null) return true;
  if (str.Length == 0) return true;
  if (str == String.Empty) return true;
  return false;
 }
 public static bool isNotEmpty(String str) {
  return !isEmpty(str);
 }
 public static String toJsStr(String str) {
  str = str.Replace("'", "\\'");
  str = str.Replace("\r", "");
  str = str.Replace("\n", "\\n");
  return str;
 }
 public static void Main() {
  Console.Write(isNotEmpty(null));
  Console.Read();
 }
}
}

DbUtils.cs如下：

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Data;
namespace Tools{
public class DbUtils {
 public static SqlConnection getConnection(string connectstr) {
  SqlConnection conn = new SqlConnection(connectstr);
  if (conn.State != ConnectionState.Open) {
   conn.Open();
  }
  return conn;
 }
 public static void closeQuietly(SqlConnection conn) {
  try {
   close(conn);
  } catch { }
 }
 public static void closeQuietly(SqlTransaction trans) {
  try {
   close(trans);
  } catch { }
 }
 public static void close(SqlConnection conn) {
  if (conn != null) {
   conn.Close();
   conn.Dispose();
  }
 }
 public static void close(SqlTransaction trans) {
  if (trans != null) {
   trans.Dispose();
  }
 }
 public static void closeQuietly(SqlConnection conn, SqlTransaction trans) {
  closeQuietly(trans);
  closeQuietly(conn);
 }
 public static void commit(SqlTransaction trans) {
  try {
   if(trans!=null) trans.Commit();
  } catch{ }
 }
 public static void rollback(SqlTransaction trans) {
  try {
   if (trans != null) trans.Rollback();
  } catch { }
 }
}
}

希望本文所述对大家的C#程序设计有所帮助。