JDBC 插入数据返回数据主键

package com.test;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.Statement;

import java.util.Date;

import java.util.Properties;

/**

* 数据库连接对象管理类

* @说明

* @author cuisuqiang

* @version 1.0

* @since

*/

public class ConnectionManager {

private static final String url = "jdbc:mysql://localhost:3306/test";

private static final String username = "root";

private static final String userpass = "root";

@SuppressWarnings("deprecation")

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

Connection conn = getConnection();

if (null != conn) {

String sql = "insert into common_user (name) values(?)";

// 指定返回生成的主键

PreparedStatement pstmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);

// 如果使用静态的SQL，则不需要动态插入参数

pstmt.setString(1, new Date().toLocaleString());

pstmt.executeUpdate();

// 检索由于执行此 Statement 对象而创建的所有自动生成的键

ResultSet rs = pstmt.getGeneratedKeys();

if (rs.next()) {

Long id = rs.getLong(1);

System.out.println("数据主键：" + id);

}

}

}

public static Connection getConnection() {

Connection conn = null;

try {

com.mysql.jdbc.Driver driver = new com.mysql.jdbc.Driver();

Properties properties = new Properties();

properties.put("user", username);

properties.put("password", userpass);

conn = driver.connect(url, properties);

} catch (Exception e) {

e.printStackTrace();

}

return conn;

}

}