MySQL JDBC简单使用

首先需要去MySQL官网下载MySQL JDBC驱动

导入jar包

 String driver = "com.mysql.jdbc.Driver";
 String url = "jdbc:mysql://localhost:3306/yourTable";
 String username = "root";
 String password = "";
 Connection connection = null;
 try {
     Class.forName(driver);  // ClassLoader加载对应驱动
     connection = DriverManager.getConnection(url, username, password);
 } catch (ClassNotFoundException e) {
     e.printStackTrace();
 } catch (SQLException e) {
     e.printStackTrace();
 }
 /**
  * 创建表
  */
 String sql = "create table nihao(name varchar(10) primary key, password varchar(10), nowtime date, age int)";
 PreparedStatement ps = null;
 try {
     ps = connection.prepareStatement(sql);
     ps.executeUpdate();
     ps.close();
 } catch (SQLException e) {
     e.printStackTrace();
 }
 /**
  * 插入数据
  */
 sql = "insert into nihao(name, password, nowtime, age) values (?, ?, ?, ?)";
 try {
     ps = connection.prepareStatement(sql);
     ps.setString(1, "root");
     ps.setString(2, "sqdw");
     ps.setDate(3, new java.sql.Date(new Date().getTime()));
     ps.setInt(4, 19);
     int i = ps.executeUpdate();
     System.out.println(i);
     ps.close();
 } catch (SQLException e) {
     e.printStackTrace();
 }
 /**
  * 查询数据
  */
 sql = "select name, password, nowtime, age from nihao";
 try {
     ps = connection.prepareStatement(sql);
     ResultSet rs = ps.executeQuery();
     while (rs.next())
         System.out.print("姓名是: " + rs.getString("name") + ", 密码是：" + rs.getString("password") +
                 ". 日期是: " + rs.getDate("nowtime") + ", 年龄是：" + rs.getInt("age"));
     ps.close();
 } catch (SQLException e) {
     e.printStackTrace();
 }
 try {
     connection.close();
 } catch (SQLException e) {
     e.printStackTrace();
 }

删除也用executeUpdate（）即可。