获取执行插入数据后的id代码,Java代码库,德仔网

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【Java】获取执行插入数据后的id

作者:依依 / 发布于2016/12/21/ 676

package com.test.javaSe01;  
  
import java.sql.Connection;  
import java.sql.DriverManager;  
import java.sql.PreparedStatement;  
import java.sql.ResultSet;  
import java.sql.SQLException;  
import java.sql.Statement;  
  
public class JDBCTestDemo01 {  
    public static void main(String[] args) {  
        String url = "jdbc:mysql://localhost:3306/test?unicode=true&characterEncoding=utf8";  
        String driver = "com.mysql.jdbc.Driver";  
        String user = "root";  
        String password = "root";  
        Connection conn = null;  
        Statement st = null;  
        PreparedStatement ps = null;  
        ResultSet rs = null;  
        try {  
            Class.forName(driver);  
        } catch (ClassNotFoundException e) {  
            e.printStackTrace();  
        }  
        try {  
            conn = DriverManager.getConnection(url, user, password);  
            // rs = conn.createStatement().executeQuery("select * from test01");  
            // while (rs.next()) {  
            // System.out.println(rs.getInt(1) + " " + rs.getString(2));  
            // }  
            st = conn.createStatement();  
            ps = conn.prepareStatement("insert into test01 (name) values(?)",Statement.RETURN_GENERATED_KEYS);  
            ps.setString(1, javax.swing.JOptionPane.showInputDialog("输入name"));  
            // st.executeUpdate(");  
            // rs=st.getGeneratedKeys();  
            ps.executeUpdate();  
            rs=ps.getGeneratedKeys();  
            rs.next();  
            int id = rs.getInt(1);  
            rs.next();  
            System.out.println(id);  
        } catch (SQLException e) {  
            e.printStackTrace();  
        }  
        try {  
            if (rs != null)  
                rs.close();  
            if (st != null)  
                st.close();  
            if (conn != null)  
                conn.close();  
        } catch (Exception e) {  
            System.err.println("连接关闭失败！");  
            e.printStackTrace();  
        }  
    }  
}

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