JDBC插入数据返回数据主键代码实例

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;
	}
}