批量执行 DDL 和 DML

package com.enhance.jdbc;

import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.util.Properties;

public class BatchTest {
	private String driver;
	private String url;
	private String user;
	private String pass;
	private Connection conn;
	private Statement stmt;
	public void initParam(String paramFile) throws Exception{
		Properties prop=new Properties();
		prop.load(new FileInputStream(paramFile));
		driver=prop.getProperty("driver");
		url=prop.getProperty("url");
		user=prop.getProperty("user");
		pass=prop.getProperty("pass");
	}
	
	//只能执行 DDL 和 DML  不能执行 select 
	public void executeBatch(String[] sqls)throws Exception{
		try{
			Class.forName(driver);
			conn=DriverManager.getConnection(url,user,pass);
			
			//关闭自动提交 ,并开启事务	
			conn.setAutoCommit(false);
			System.out.println("开启了事务!");
			stmt=conn.createStatement();
			for (String sql : sqls) {
				stmt.addBatch(sql);
			}
			int[] nums=stmt.executeBatch();  //只能执行 DDL 和 DML  不能执行 select 
			for (int i = 0; i < nums.length; i++) {
				System.out.println((i+1)+"行sql执行的结果:"+nums[i]);
			}
			conn.commit();
			System.out.println("提交了事务!");
			conn.setAutoCommit(true); //回复自动提交模式 ,主要在 线程池的时候 ,一定要复原后再放回去了,供其他 程序能正常使用 conn
		}finally{
			if(stmt!=null)
				stmt.close();
			if(conn!=null)
				conn.close();
		}
		
	}
	
	
	public static void main(String[] args) throws Exception {
		BatchTest bt=new BatchTest();
		bt.initParam("src/mysql.ini");
		String[]sqls={
				"insert into my_test values(null,'提交事务')"
				,"insert into my_test values(null,'加油')"
				,"update my_test set test_name='comme on!!' where test_id=4"
				,"{call add_proc(4,5,null)}"};// 批量更新 不能执行 PreparedStatement 和 CallableStatement
		bt.executeBatch(sqls);
	}

}