MyEclipse------executeBatch()使用方法

executeBatch()方法用于成批地执行SQL语句，但不能执行返回值是ResultSet结果集的SQL语句，而是直接执行stmt.executeBatch();

辅助方法：

addBatch();向批处理中加入一个更新语句。

clearBatch():清空批处理中的更新语句

testExecuteBatch.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

    String path = request.getContextPath();

    String basePath = request.getScheme() + "://"

            + request.getServerName() + ":" + request.getServerPort()

            + path + "/";

%>

<%@page import="java.sql.*" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<base href="<%=basePath%>">

<title>My JSP 'executeBatch.jsp' starting page</title>

</head>

<body>

    <%

        String url="jdbc:mysql://localhost:3306/student?useSSL=true";

        String useName="root";

        String password="2277092";

        Connection conn=null;

        Statement stmt=null;

        try{

            Class.forName("com.mysql.jdbc.Driver");

            //out.print("加载驱动类成功");

        }

        catch(Exception e){

            out.print(e);

        }

        try{

            conn=DriverManager.getConnection(url,useName,password);

            stmt=conn.createStatement();

            //使用addBatch()添加SQL语句

            stmt.addBatch("insert into classinfo values(4,'石兰','女','网络工程','2277092','五邑大学','20','90');");

            stmt.addBatch("update classinfo set phone='18814182472' where no=3113002421");

            //使用executeBatch()执行批量更新语句

            stmt.executeBatch();

            //统计更新计数数组

            /*

            int affectRowCounts[]=stmt.executeBatch();

            for(int i=0;i<affectRowCounts.length;i++){

                out.print("第"+(i+1)+"个更新语句影响的数据行数为:"+affectRowCounts[i]+"<br>");

            }

            */

            stmt.close();

            out.print("更新成功");

        }

        catch(SQLException e){

            out.print(e);

        }

        finally{

            try{

                if(conn!=null)

                    conn.close();

            }

            catch(SQLException e){

                out.print("关闭数据库连接出现异常");

            }

        }

     %>

</body>

</html>

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MyEclipse------executeBatch()使用方法

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