java語言MySQL數(shù)據(jù)庫事務(wù)的處理_MySQL

public class GetConnection{
	public static void main(String[] args){
	Access2Database adb=new Access2Database();
	Connection conn=adb.getConn();	
	
	//transaction dealing
	PreparedStatement pstam=null;
	try{
	conn.setAutoCommit(false);
	String sql="delete from student where name='a' and major=?";
	pstam=conn.prepareStatement(sql);
	pstam.setString(1, "Chinese");
	pstam.executeUpdate();

	conn.rollback();
	conn.commit();
	}catch(SQLException e){
	try {
	conn.rollback();
	} catch (SQLException e1) {
	// TODO Auto-generated catch block
	e1.printStackTrace();
	}
	e.printStackTrace();
	}finally{
	try {
	conn.setAutoCommit(true);
	} catch (SQLException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
	}
	}	
	
	//release the resource of the program
	try{
	pstam.close();
	conn.close();
	}catch(SQLException e){
	e.printStackTrace();
	}
	}
}

import java.sql.*;

public class GetConnection{
	public static void main(String[] args){
	Access2Database adb=new Access2Database();
	Connection conn=adb.getConn();	
	
	//transaction dealing
	PreparedStatement pstam=null;
	try{
	conn.setAutoCommit(false);
	String sql="delete from student where name='a' and major=?";
	pstam=conn.prepareStatement(sql);
	pstam.setString(1, "Chinese");
	pstam.executeUpdate();
	//conn.commit();
	
	Savepoint sp=conn.setSavepoint();
	sql="insert into student(name,major,score) values('g','Math','99');";
	pstam=conn.prepareStatement(sql);
	pstam.executeUpdate();
	conn.rollback(sp);
	conn.commit();
	}catch(SQLException e){
	try {
	conn.rollback();
	} catch (SQLException e1) {
	// TODO Auto-generated catch block
	e1.printStackTrace();
	}
	e.printStackTrace();
	}finally{
	try {
	conn.setAutoCommit(true);
	} catch (SQLException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
	}
	}	
	
	//release the resource of the program
	try{
	pstam.close();
	conn.close();
	}catch(SQLException e){
	e.printStackTrace();
	}
	}
}