update fix

src/main/java/com/yaoyuan/jiscuss/controller/UserPostController.java

@@ -73,6 +73,9 @@ public class UserPostController extends BaseController {
     public String getDiscussionsById(HttpServletRequest request, ModelMap map, @RequestParam("id") Integer id) {
         logger.info(">>> getDiscussionsById{}", id);
 
+        // Atomically increment view count before loading the discussion
+        discussionsService.incrementViewCount(id);
+
         Discussion discussion = discussionsService.findOne(id);
         // 获取此主题下的评论
         List<Post> posts = postsService.findOneBy(id);

src/main/java/com/yaoyuan/jiscuss/controller/UserSystemController.java

@@ -112,6 +112,7 @@ public class UserSystemController extends BaseController {
         map.put("pageTotal", total);
         map.put("pageNum", pageNum);
         map.put("pageTotalPages", allDiscussionsPage.getTotalPages());
+        map.put("pageNumAll", allDiscussionsPage.getTotalPages());
         UserInfo user = getUserInfo(request);
         if (user != null) {
             map.put("username", user.getUsername());

src/main/java/com/yaoyuan/jiscuss/controller/api/RestUserController.java

@@ -1,11 +1,16 @@
 package com.yaoyuan.jiscuss.controller.api;
 
+import com.yaoyuan.jiscuss.dto.UserCreateRequest;
+import com.yaoyuan.jiscuss.dto.UserMapper;
+import com.yaoyuan.jiscuss.dto.UserResponse;
 import com.yaoyuan.jiscuss.entity.User;
 import com.yaoyuan.jiscuss.exception.BaseException;
+import com.yaoyuan.jiscuss.response.ApiResponse;
 import com.yaoyuan.jiscuss.response.ResponseCode;
 import com.yaoyuan.jiscuss.service.IUsersService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -30,46 +35,51 @@ public class RestUserController {
     @Autowired
     private IUsersService usersService;
 
+    @Autowired
+    private UserMapper userMapper;
+
     @PostMapping("/user")
     @Operation(summary = "新增用户")
-    public User save(@RequestBody User user) {
+    public ApiResponse<UserResponse> save(@Valid @RequestBody UserCreateRequest request) {
-        User saveUser = usersService.insert(user);
+        User user = userMapper.fromCreateRequest(request);
-        if (saveUser != null) {
+        User saved = usersService.insert(user);
-            return saveUser;
+        if (saved != null) {
-        } else {
+            return ApiResponse.ok(userMapper.toResponse(saved));
-            throw new BaseException(ResponseCode.RESOURCES_NOT_EXIST);
         }
+        throw new BaseException(ResponseCode.RESOURCES_NOT_EXIST);
     }
 
     @DeleteMapping("/user/{id}")
     @Operation(summary = "删除用户")
-    public Boolean delete(@PathVariable Integer id) {
+    public ApiResponse<Boolean> delete(@PathVariable Integer id) {
         usersService.remove(id);
-        return true;
+        return ApiResponse.ok(true);
     }
 
     @PutMapping("/user/{id}")
     @Operation(summary = "修改用户")
-    public User update(@RequestBody User user, @PathVariable Integer id) {
+    public ApiResponse<UserResponse> update(@RequestBody User user, @PathVariable Integer id) {
-        User updateuser = usersService.update(user, id);
+        User updated = usersService.update(user, id);
-        if (updateuser != null) {
+        if (updated != null) {
-            return updateuser;
+            return ApiResponse.ok(userMapper.toResponse(updated));
-        } else {
-            throw new BaseException(ResponseCode.RESOURCES_NOT_EXIST);
         }
+        throw new BaseException(ResponseCode.RESOURCES_NOT_EXIST);
     }
 
     @GetMapping("/user/{id}")
     @Operation(summary = "获取用户")
-    public User getUser(@PathVariable Integer id) {
+    public ApiResponse<UserResponse> getUser(@PathVariable Integer id) {
         User user = usersService.findOne(id);
         logger.info("获取用户==>：{}", user);
-        return user;
+        return ApiResponse.ok(userMapper.toResponse(user));
     }
 
     @GetMapping("/user")
     @Operation(summary = "获取全部用户")
-    public List<User> getAllUsers() {
+    public ApiResponse<List<UserResponse>> getAllUsers() {
-        return usersService.getAllList();
+        List<UserResponse> list = usersService.getAllList().stream()
+                .map(userMapper::toResponse)
+                .toList();
+        return ApiResponse.ok(list);
     }
 }

src/main/java/com/yaoyuan/jiscuss/entity/Discussion.java

@@ -77,5 +77,8 @@ public class Discussion implements Serializable {
 
     @Column(name = "create_time")
     private Date createTime;
+
+    @Column(name = "view_count")
+    private Integer viewCount = 0;
 }
 

src/main/java/com/yaoyuan/jiscuss/entity/User.java

@@ -1,5 +1,6 @@
 package com.yaoyuan.jiscuss.entity;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
@@ -39,7 +40,8 @@ public class User implements Serializable {
     @Column(name = "email")
     private String email;
 
-    /** BCrypt-hashed password. Column length must be >= 68 (see V2 migration). */
+    /** BCrypt-hashed password. Column length must be >= 68 (see V2 migration). Never serialized to JSON. */
+    @JsonIgnore
     @Column(name = "password")
     private String password;
 

src/main/java/com/yaoyuan/jiscuss/entity/UserInfo.java

@@ -77,10 +77,9 @@ public class UserInfo implements UserDetails {
     @Override
     public String toString() {
         return "UserInfo{" +
-                "authorities=" + authorities +
+                "username='" + username + '\'' +
-                ", password='" + password + '\'' +
-                ", username='" + username + '\'' +
                 ", id='" + id + '\'' +
+                ", authorities=" + authorities +
                 '}';
     }
 }

src/main/java/com/yaoyuan/jiscuss/repository/DiscussionsRepository.java

@@ -4,8 +4,10 @@ import com.yaoyuan.jiscuss.entity.Discussion;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
 
 @Repository
 public interface DiscussionsRepository extends JpaRepository<Discussion, Integer> {
@@ -14,5 +16,8 @@ public interface DiscussionsRepository extends JpaRepository<Discussion, Integer
             "SELECT discussion_id from discussiontag where tag_id = ?1 )  ", nativeQuery = true)
     Page<Discussion> findByQuery(String tagId, Pageable pageable);
 
-
+    @Modifying
+    @Transactional
+    @Query("UPDATE Discussion d SET d.viewCount = d.viewCount + 1 WHERE d.id = :id")
+    void incrementViewCount(@org.springframework.data.repository.query.Param("id") Integer id);
 }

src/main/java/com/yaoyuan/jiscuss/service/IDiscussionsService.java

@@ -14,4 +14,6 @@ public interface IDiscussionsService {
     Discussion findOne(Integer id);
 
     Page<Discussion> queryAllDiscussionsList(Discussion discussion, int pageNumNew, int pageSiz, String tag, String type);
+
+    void incrementViewCount(Integer id);
 }

src/main/java/com/yaoyuan/jiscuss/service/impl/DiscussionsServiceImpl.java

@@ -35,8 +35,7 @@ public class DiscussionsServiceImpl implements IDiscussionsService {
     @Transactional(readOnly = true)
     @Override
     public Discussion findOne(Integer id) {
-        // getReferenceById replaces removed JpaRepository.getOne()
+        return discussionsRepository.findById(id).orElse(null);
-        return discussionsRepository.getReferenceById(id);
     }
 
     @Transactional(readOnly = true)
@@ -55,4 +54,10 @@ public class DiscussionsServiceImpl implements IDiscussionsService {
             return discussionsRepository.findAll(example, pageable);
         }
     }
+
+    @Transactional
+    @Override
+    public void incrementViewCount(Integer id) {
+        discussionsRepository.incrementViewCount(id);
+    }
 }

src/main/resources/db/migration/V6__add_indexes.sql

@@ -0,0 +1,26 @@
+-- V6: Add indexes for high-frequency query columns.
+-- All indexes use IF NOT EXISTS for idempotent migrations.
+
+-- post table: most reads filter/sort by discussion_id, parent_id, create_time
+CREATE INDEX IF NOT EXISTS idx_post_discussion_id  ON post(discussion_id);
+CREATE INDEX IF NOT EXISTS idx_post_parent_id      ON post(parent_id);
+CREATE INDEX IF NOT EXISTS idx_post_create_time    ON post(create_time);
+CREATE INDEX IF NOT EXISTS idx_post_create_id      ON post(create_id);
+
+-- discussion table: sorted by id/create_time/start_time/like_count; joined on start_user_id/last_user_id
+CREATE INDEX IF NOT EXISTS idx_discussion_create_time    ON discussion(create_time);
+CREATE INDEX IF NOT EXISTS idx_discussion_start_time     ON discussion(start_time);
+CREATE INDEX IF NOT EXISTS idx_discussion_like_count     ON discussion(like_count);
+CREATE INDEX IF NOT EXISTS idx_discussion_start_user_id  ON discussion(start_user_id);
+CREATE INDEX IF NOT EXISTS idx_discussion_last_user_id   ON discussion(last_user_id);
+
+-- discussiontag table: used in tag-filter queries and cascade deletes
+CREATE INDEX IF NOT EXISTS idx_discussiontag_discussion_id ON discussiontag(discussion_id);
+CREATE INDEX IF NOT EXISTS idx_discussiontag_tag_id        ON discussiontag(tag_id);
+
+-- user table: login and username-lookup path
+CREATE INDEX IF NOT EXISTS idx_user_username ON user(username);
+
+-- likecollect table: user activity queries
+CREATE INDEX IF NOT EXISTS idx_likecollect_user_id        ON likecollect(user_id);
+CREATE INDEX IF NOT EXISTS idx_likecollect_discussion_id  ON likecollect(discussion_id);

src/main/resources/db/migration/V7__view_count.sql

@@ -0,0 +1,5 @@
+-- V7: Add view_count to discussion table.
+-- Tracks how many times a discussion has been viewed.
+ALTER TABLE discussion ADD COLUMN IF NOT EXISTS view_count INTEGER NOT NULL DEFAULT 0;
+
+CREATE INDEX IF NOT EXISTS idx_discussion_view_count ON discussion(view_count);

src/main/resources/templates/discussions.ftl

@@ -49,9 +49,13 @@
                         <i class="heart icon"></i> 赞这个主题
                     </div>
                     <a class="ui basic red left pointing label">
-                        1,048
+                        ${discussions.likeCount!0}
                     </a>
                 </div>
+                <span style="margin-left:12px; color:#888; font-size:0.9em;">
+                    <i class="eye icon"></i> ${discussions.viewCount!0} 浏览
+                    &nbsp;&nbsp;<i class="comment icon"></i> ${discussions.commentsCount!0} 回复
+                </span>
 
 
                 <div class="ui feed">

src/main/resources/templates/index.ftl

@@ -347,10 +347,13 @@
                                     </div>
                                     <div class="nullright  meta">
                                         <a class="like ">
-                                            <i class="like icon"></i> ${discussions.likeCount} 喜欢
+                                            <i class="like icon"></i> ${discussions.likeCount!0} 喜欢
                                         </a>
                                         <a class="comment ">
-                                            <i class="comment icon"></i> ${discussions.commentsCount} 回复
+                                            <i class="comment icon"></i> ${discussions.commentsCount!0} 回复
+                                        </a>
+                                        <a class="comment ">
+                                            <i class="eye icon"></i> ${discussions.viewCount!0} 浏览
                                         </a>
                                     </div>
                                 </div>
@@ -397,10 +400,13 @@
                                     </div>
                                     <div class="nullright  meta">
                                         <a class="like ">
-                                            <i class="like icon"></i> ${discussions.likeCount} 喜欢
+                                            <i class="like icon"></i> ${discussions.likeCount!0} 喜欢
                                         </a>
                                         <a class="comment ">
-                                            <i class="comment icon"></i> ${discussions.commentsCount} 回复
+                                            <i class="comment icon"></i> ${discussions.commentsCount!0} 回复
+                                        </a>
+                                        <a class="comment ">
+                                            <i class="eye icon"></i> ${discussions.viewCount!0} 浏览
                                         </a>
                                     </div>
                                 </div>
@@ -446,10 +452,13 @@
                                     </div>
                                     <div class="nullright  meta">
                                         <a class="like ">
-                                            <i class="like icon"></i> ${discussions.likeCount} 喜欢
+                                            <i class="like icon"></i> ${discussions.likeCount!0} 喜欢
                                         </a>
                                         <a class="comment ">
-                                            <i class="comment icon"></i> ${discussions.commentsCount} 回复
+                                            <i class="comment icon"></i> ${discussions.commentsCount!0} 回复
+                                        </a>
+                                        <a class="comment ">
+                                            <i class="eye icon"></i> ${discussions.viewCount!0} 浏览
                                         </a>
                                     </div>
                                 </div>
@@ -461,68 +470,68 @@
             </div>
 
 
+            <#-- Pagination: preserves tag and type query parameters -->
             <div class="ui borderless menu">
-                <a class="icon item" id="upPage">
+                <#assign baseUrl = "/?tag=" + tag + "&type=" + type>
-                    <i class="left chevron icon"></i>
+                <#if pageNum gt 1>
-                </a>
+                    <a class="icon item" href="${baseUrl}&pageNum=${pageNum - 1}">
+                        <i class="left chevron icon"></i>
+                    </a>
+                <#else>
+                    <div class="disabled icon item"><i class="left chevron icon"></i></div>
+                </#if>
                 <#list pageDiscussions as page>
-                    <#if page == pageNum && !(username)??>
+                    <#assign pageInt = page?number>
-                        <a class="item" style="  background-color: #7d827d;" href="/?pageNum=${page}">
+                    <#if pageInt == pageNum>
-                            ${page}
+                        <a class="active item" href="${baseUrl}&pageNum=${page}">${page}</a>
-                        </a>
+                    <#else>
-                    </#if>
+                        <a class="item" href="${baseUrl}&pageNum=${page}">${page}</a>
-                    <#if page != pageNum && !(username)??>
-                        <a class="item" href="/?pageNum=${page}">
-                            ${page}
-                        </a>
-                    </#if>
-                    <#if page == pageNum && username??>
-                        <a class="item" style="  background-color: #7d827d;" href="/main?pageNum=${page}">
-                            ${page}
-                        </a>
-                    </#if>
-                    <#if page != pageNum  && username??>
-                        <a class="item" href="/main?pageNum=${page}">
-                            ${page}
-                        </a>
                     </#if>
                 </#list>
-                <a class="icon item" id="nextPage"> <i class="right chevron icon"></i>
+                <#if pageNum lt pageTotalPages>
-                </a>
+                    <a class="icon item" href="${baseUrl}&pageNum=${pageNum + 1}">
+                        <i class="right chevron icon"></i>
+                    </a>
+                <#else>
+                    <div class="disabled icon item"><i class="right chevron icon"></i></div>
+                </#if>
             </div>
-            <!--pager-->
-            <#--<div class="ui borderless menu">
-                <ul class="pagination">
-                    <#import "./comm/page.ftl" as page />
-                    <@page.fpage page=pageNum pagesize=pageSize totalpages=pageTotalPages totalrecords=pageTotal url="/" />
-                </ul>
-            </div>-->
 
         </div>
 
         <div class="mobile only sixteen wide column">
-            <div class="ui segment">Jiscuss手机可见，内容正在编写中，pc端可正常访问</div>
+            <div class="ui large feed">
+                <#list allDiscussions as discussions>
+                    <div class="event">
+                        <div class="content">
+                            <div class="summary">
+                                <a href="/getdiscussionsbyid?id=${discussions.id}">
+                                    ${discussions.title}
+                                </a>
+                                <div class="date">${discussions.startTime}</div>
+                            </div>
+                            <div class="meta">
+                                <a><b>${discussions.username}</b></a>&nbsp;•&nbsp;
+                                <i class="comment icon"></i>${discussions.commentsCount!0} 回复&nbsp;
+                                <i class="eye icon"></i>${discussions.viewCount!0} 浏览
+                            </div>
+                        </div>
+                    </div>
+                    <div class="ui fitted divider"></div>
+                </#list>
+            </div>
             <div class="ui borderless menu">
-                <a class="icon item">
+                <#if pageNum gt 1>
-                    <i class="left chevron icon"></i>
+                    <a class="icon item" href="${baseUrl}&pageNum=${pageNum - 1}"><i class="left chevron icon"></i></a>
-                </a>
+                <#else>
-                <a class="item">
+                    <div class="disabled icon item"><i class="left chevron icon"></i></div>
-                    1
+                </#if>
-                </a>
+                <span class="item">${pageNum} / ${pageTotalPages}</span>
-                <a class="item">
+                <#if pageNum lt pageTotalPages>
-                    2
+                    <a class="icon item" href="${baseUrl}&pageNum=${pageNum + 1}"><i class="right chevron icon"></i></a>
-                </a>
+                <#else>
-                <div class="disabled item">
+                    <div class="disabled icon item"><i class="right chevron icon"></i></div>
-                    ...
+                </#if>
-                </div>
-                <a class="item">
-                    10
-                </a>
-                <a class="item">
-                    11
-                </a>
-                <a class="icon item"> <i class="right chevron icon"></i>
-                </a>
             </div>
         </div>