记录使用JDBC
1 mysql 加载驱动 实际上MYSQL 5以后会自动注册驱动 可以省略不写
2 通过驱动管理获取连接
3 使用PreparedStatement 执行SQL 语名防止注入
4 执行sql语句
5 获取结果
package com.lanlin.web.dao;
import com.lanlin.web.domain.User;
import com.lanlin.web.util.GetConn;
import java.sql.*;
import com.mysql.jdbc.Driver;
/**
* Created on 2019/3/6.0:07
*
* @author Lanlin
*/
public class UserDao {
public UserDao() {
}
public static int save(String uname,String upwd)throws ClassNotFoundException, SQLException{
Connection conn = null;
PreparedStatement ps = null;
conn= GetConn.getConnection();
String sql="INSERT INTO user(username, userpwd) VALUES (?,?)";
ps = conn.prepareStatement(sql);
ps.setString(1,uname);
ps.setString(2,upwd);
ps.executeUpdate();
int count = ps.getUpdateCount();
return count;
}
public static void main(String[] args) throws ClassNotFoundException, SQLException {
int i = UserDao.save("mnnn1", "1532f");
if(i>=1){
System.out.println("添加成功");
};
}
}