Java数据库编程（执行数据库修改操作）

package org.dml;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.Statement;

public class UpdateDemo {

public static final String DBDRIVER = "org.gjt.mm.mysql.Driver";

public static final String DBURL = "jdbc:mysql://localhost:3306/mldn";

public static final String user = "root";

public static final String password = "root";

public static void main(String[] args) throws Exception{

Connection conn = null;

Statement stmt = null;

Class.forName(DBDRIVER);

String sql = "update user set name = 'chenfeipeng'," +

"password='hello',age=22,sex='女' where id = 4;";

conn = DriverManager.getConnection(DBURL, user, password);

stmt = conn.createStatement();

stmt.executeUpdate(sql);

stmt.close();

conn.close();

}

}