Java jdbc连接数据库 INSERT插入
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package com.edu;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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public
class jdbcTest {
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public static void main(String[] args) {
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try {
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Class.forName(
"com.mysql.jdbc.Driver");
//加载驱动程序
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String url =
"jdbc:mysql://localhost:3306/test";
//定义连接字符串url test是数据库名称
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Connection conn =DriverManager.getConnection(url,
"root",
"root");
//与数据库连接
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String sql=
"insert into users(name,sex,age,addr) values(?,?,?,?)";
//sql语句
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PreparedStatement pstmt=conn.prepareStatement(sql);
//获得预置对象
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pstmt.setString(
1,
"lili");
//设置占位符的值
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pstmt.setString(
2,
"女");
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pstmt.setInt(
3,
21);
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pstmt.setString(
4,
"西南石油大学");
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int res=pstmt.executeUpdate();
//执行sql语句
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if(res>
0){
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System.out.println(
"数据录入成功");
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}
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pstmt.close();
//关闭资源
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conn.close();
//关闭资源
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}
catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
catch (ClassNotFoundException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
表结构
执行成功后：
原文地址https://blog.csdn.net/Bancroft_boy/article/details/81143202
