java原⽣JDBC拼接sql并insert数据库package JDBC;
import sun.jvm.hotspot.HelloWorld;
import java.io.*;
import java.URL;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Properties;
public class JDBCClass {
public static void main(String[] args) {
try{
Class.forName("sql.jdbc.Driver");
System.out.println("驱动程序加载成功。。。");
}catch (ClassNotFoundException e){
java的jdbc连接数据库e.printStackTrace();
System.out.println("驱动程序加载失败。。。");
//退出
return;
}
Properties info = new Properties();
try{
String root = Property("user.dir");
String FileName="jdbcConfig.properties";
String filePath = root+ File.separator+"src/JDBC"+File.separator+FileName;
BufferedReader input = new BufferedReader(new FileReader(filePath));
info.load(input);
}catch (IOException e){
e.printStackTrace();
return;
}
String url = (String) ("url");
try (Connection conn = Connection(url,info)){
PreparedStatement pstmt = conn.prepareStatement("insert into table_jdbc values(?,?,?,?)");
pstmt.setInt(1,2);
pstmt.setString(2,"sunhy");
pstmt.setInt(3,23);
pstmt.setString(4,"⼥");
System.out.println("数据库连接成功。。。");
}catch (SQLException e){
e.printStackTrace();
}
}
}
/*
Navicat MySQL Data Transfer
Source Server        : localhost
Source Server Type    : MySQL
Source Server Version : 50728
Source Host          : 127.0.0.1:3306
Source Schema        : mydemo1
Target Server Type    : MySQL
Target Server Version : 50728
File Encoding        : 65001
Date: 22/08/2020 12:27:40
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for table_jdbc
-- ----------------------------
DROP TABLE IF EXISTS `table_jdbc`;
CREATE TABLE `table_jdbc` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'id',
`name` varchar(50) DEFAULT NULL,
`age` int(11) DEFAULT NULL,
`sex` varchar(50) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8; SET FOREIGN_KEY_CHECKS = 1;

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