完成用户信息查询功能

README.md

@@ -4,4 +4,14 @@
 
 * 登录功能（支持用户名、邮箱登录）
 * 注册用户（通过邮箱注册）
-* 重置密码（通过邮箱重置密码）
+* 重置密码（通过邮箱重置密码）
+
+登录功能：
+1. 用户登录成之后，才能访问index路径下的页面
+2. 用户如果没有登录，那么会自动跳转到登录界面
+3. 如果用户请求的是一个压根就不存在的页面，依然强制回到登录界面，如果已经登录，那么回到index首页
+
+登录解决方案
+1. 无论是否已经登录，直接向后端请求用户信息
+2. 如果请求成功，那么说明肯定是已经登录了
+3. 如果请求失败，那么说明没有登录，跳转到登录界面

study-project-backend/src/main/java/com/example/config/WebConfiguration.java

@@ -0,0 +1,21 @@
+package com.example.config;
+
+import com.example.interceptor.AuthorizeInterceptor;
+import jakarta.annotation.Resource;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+
+    @Resource
+    AuthorizeInterceptor interceptor;
+
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry
+                .addInterceptor(interceptor)
+                .addPathPatterns("/**");
+    }
+}

study-project-backend/src/main/java/com/example/controller/UserController.java

@@ -0,0 +1,18 @@
+package com.example.controller;
+
+import com.example.entity.RestBean;
+import com.example.entity.user.AccountUser;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.SessionAttribute;
+
+@RestController
+@RequestMapping("/api/user")
+public class UserController {
+
+    @GetMapping("/me")
+    public RestBean<AccountUser> me(@SessionAttribute("account") AccountUser user){
+        return RestBean.success(user);
+    }
+}

study-project-backend/src/main/java/com/example/entity/auth/Account.java

@@ -1,4 +1,4 @@
-package com.example.entity;
+package com.example.entity.auth;
 
 import lombok.Data;
 

study-project-backend/src/main/java/com/example/entity/user/AccountUser.java

@@ -0,0 +1,10 @@
+package com.example.entity.user;
+
+import lombok.Data;
+
+@Data
+public class AccountUser {
+    int id;
+    String username;
+    String email;
+}

study-project-backend/src/main/java/com/example/interceptor/AuthorizeInterceptor.java

@@ -0,0 +1,30 @@
+package com.example.interceptor;
+
+import com.example.entity.user.AccountUser;
+import com.example.mapper.UserMapper;
+import jakarta.annotation.Resource;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContext;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.User;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.HandlerInterceptor;
+
+@Component
+public class AuthorizeInterceptor implements HandlerInterceptor {
+    @Resource
+    UserMapper mapper;
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        SecurityContext context = SecurityContextHolder.getContext();
+        Authentication authentication = context.getAuthentication();
+        User user = (User)authentication.getPrincipal();
+        String username = user.getUsername();
+        AccountUser account = mapper.findAccountUserByNameOrEmail(username);
+        request.getSession().setAttribute("account", account);
+        return true;
+    }
+}

study-project-backend/src/main/java/com/example/mapper/UserMapper.java

@@ -1,6 +1,7 @@
 package com.example.mapper;
 
-import com.example.entity.Account;
+import com.example.entity.auth.Account;
+import com.example.entity.user.AccountUser;
 import org.apache.ibatis.annotations.Insert;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Select;
@@ -11,6 +12,9 @@ public interface UserMapper {
     @Select("select * from db_account where username = #{text} or email = #{text}")
     Account findAccountByNameOrEmail(String text);
 
+    @Select("select * from db_account where username = #{text} or email = #{text}")
+    AccountUser findAccountUserByNameOrEmail(String text);
+
     @Insert("insert into db_account (email, username, password) values (#{email}, #{username}, #{password})")
     int createAccount(String username, String password, String email);
 

study-project-backend/src/main/java/com/example/service/impl/AuthorizeServiceImpl.java

@@ -1,6 +1,6 @@
 package com.example.service.impl;
 
-import com.example.entity.Account;
+import com.example.entity.auth.Account;
 import com.example.mapper.UserMapper;
 import com.example.service.AuthorizeService;
 import jakarta.annotation.Resource;