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原创 博客管理
package com.zr.com.zr.interceptor; import org.springframework.web.servlet.handler.HandlerInterceptorAdapter; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class LoginInterceptor extends HandlerInterc
2020-07-16 13:48:54
191
原创 博客管理(登录注销)
package com.zr.dao; import com.zr.po.User; import org.springframework.data.jpa.repository.JpaRepository; public interface UserDao extends JpaRepository<User,Long> { User findByUsernameAndPassword(String username, String password); } package
2020-07-07 15:19:30
172
原创 基于SSM框架的用户管理
SSM框架的增删改查 package com.zhong.bean; public class User { public User() { } public User(int id,String username,String password) { this.id=id; this.username=username; this.password=password; } public User(S
2020-07-01 22:17:25
394
原创 SSM框架的数据库登录和查
配置 UserMapper.xml: <?xml version="1.0" encoding="UTF-8" ?> select * from user where username=#{username} select * from user applicationConText.xml: <?xml version="1.0" encoding="UTF-8"?> <context:property-
2020-06-30 16:30:56
443
原创 简单的servlet登录功能
User: package bean; public class User { public User() { } public User(int id,String username,String password) { this.id=id; this.username=username; this.password=password; } public User(String username,
2020-06-29 12:20:17
209
原创 基于mysql的数据库增删改查
Until import java.sql.*; public class Util { public static Connection getConnection() throws ClassNotFoundException, SQLException { //1.加载驱动 Class.forName("com.mysql.jdbc.Driver"); // 2.创建连接 Connection connection= Drive
2020-06-28 13:46:37
185
原创 JAVA 斗地主发牌和排序
JAVA 斗地主发牌和排序](这里写自定义目录标题) import java.sql.SQLOutput; import java.util.*; public class ddz { public static void main(String[] args) { //1.建54张牌 //2.洗牌 //3.留三张牌 //4.发牌 HashMap<Integer,String> pokes =new HashMap<>(); List&
2020-06-26 18:55:20
256
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