Eclipse连接MySQL数据库

工作目录：

右键项目，选中Build Path，选中configure build path，把lib目录下的jar包加入路径。

程序代码：

package com.test;
import java.sql.*;//引入包
public class MysqlConnTest {
      public MysqlConnTest() {
            status = -1;
           setConnection( null);
            try {
                Class. forName( "com.mysql.jdbc.Driver"); //加载驱动
                setConnection(DriverManager. getConnection( "jdbc:mysql://localhost:3306/test", "root", "123456")); //建立连接
           } catch (Exception e) {
                 e.printStackTrace();
           }
            status = 1;
     }

      public static void main(String args[]) throws SQLException{
           MysqlConnTest instance = new MysqlConnTest();
            if ( instance.getStatus() == 1) {
                 //状态准备好了
                 instance.TestWrite();
                 instance.TestRead();

                 instance.getConnection().close();
           }
     }

      //测试写程序
      public void TestWrite() throws SQLException{
           PreparedStatement statement = getConnection().prepareStatement("insert into test(name) values ('hello')");
            statement.executeUpdate();
     }

      //测试读程序
      public void TestRead() throws SQLException{
           PreparedStatement statement = getConnection().prepareStatement("select * from test" );
           ResultSet result = statement.executeQuery();
            while( result.next()){
                System. out.println( "id = " + result.getInt(1) +",name = " + result .getString(2));
           }
            result.close();
     }

      private int status;
      private Connection connection;

      public int getStatus(){
            return status;
     }

      public void setStatus( int status){
            this. status = status;
     }

      public Connection getConnection() {
            return connection;
     }

      public void setConnection(Connection connection) {
            this. connection = connection;
     }
}

SQL文件：

CREATE DATABASE  IF NOT EXISTS `test`;
USE `test`;
DROP TABLE IF EXISTS `test`;
CREATE TABLE `test` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(45) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

运行结果：

THE END