为了适应前端的列表动态加载，添加了getNewsByRange及其相关内容。

src/main/java/org/cmh/backend/NewsManagement/controller/NewsController.java

@@ -1,6 +1,7 @@
 package org.cmh.backend.NewsManagement.controller;
 
 import jakarta.persistence.EntityNotFoundException;
+import org.cmh.backend.NewsManagement.dto.GetNewsListResponse;
 import org.cmh.backend.NewsManagement.dto.MessageResponse;
 import org.cmh.backend.NewsManagement.dto.NewsRequest;
 import org.cmh.backend.NewsManagement.model.News;
@@ -8,7 +9,6 @@ import org.cmh.backend.NewsManagement.service.NewsService;
 import org.cmh.backend.Utils.JwtVerify;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.dao.DataIntegrityViolationException;
-import org.springframework.data.domain.Page;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
@@ -20,8 +20,13 @@ public class NewsController {
     private NewsService newsService;
 
     @GetMapping
-    public ResponseEntity<Page<News>> getNewsPage(@RequestParam Integer pageNo, @RequestParam Integer pageSize) {
-        return new ResponseEntity<>(newsService.getNewsByPage(pageNo, pageSize), HttpStatus.OK);
+    @JwtVerify
+    public ResponseEntity<GetNewsListResponse> getNewsByRange(@RequestParam Integer start, @RequestParam Integer end, @RequestParam String token) {
+        if (start >= end) {
+            return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
+        }
+        long newsCount = newsService.getNewsCount();
+        return new ResponseEntity<>(new GetNewsListResponse(newsCount, newsService.getNewsByRange(start, end)), HttpStatus.OK);
     }
 
     @GetMapping("/{id}")

src/main/java/org/cmh/backend/NewsManagement/dto/GetNewsListResponse.java

@@ -0,0 +1,17 @@
+package org.cmh.backend.NewsManagement.dto;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+import org.cmh.backend.NewsManagement.model.News;
+
+import java.util.List;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class GetNewsListResponse {
+    Long newsCount;
+    List<News> newsList;
+}

src/main/java/org/cmh/backend/NewsManagement/service/NewsService.java

@@ -10,22 +10,47 @@ import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Service
 public class NewsService {
     @Autowired
     private NewsRepository newsRepository;
 
-    public Page<News> getNewsByPage(int pageNo, int pageSize) {
-        if (pageNo < 1) {
-            pageNo = 1;
+    public List<News> getNewsByRange(int start, int end) {
+        if (start < 0 || end <= start) {
+            throw new IllegalArgumentException("Invalid start or end range");
         }
-        if (pageSize < 1) {
-            pageSize = 10;
+
+        int pageSize = end - start; // 计算每页的大小
+        int startPageNumber = start / pageSize; // 计算起始页码
+        int endPageNumber = (end - 1) / pageSize; // 计算结束页码
+
+        List<News> result = new ArrayList<>();
+
+        for (int pageNumber = startPageNumber; pageNumber <= endPageNumber; pageNumber++) {
+            Pageable pageable = PageRequest.of(pageNumber, pageSize);
+            Page<News> newsPage = newsRepository.findAllByOrderByIdDesc(pageable);
+
+            if (newsPage.hasContent()) {
+                result.addAll(newsPage.getContent());
+            } else {
+                break; // 如果没有更多内容，提前退出
+            }
         }
-        Pageable pageable = PageRequest.of(pageNo - 1, pageSize);
-        return newsRepository.findAllByOrderByIdDesc(pageable);
+
+        int startIndex = start % pageSize;
+        int endIndex = startIndex + (end - start);
+
+        if (endIndex > result.size()) {
+            endIndex = result.size();
+        }
+
+        return result.subList(startIndex, endIndex);
     }
 
+
     public void createNews(NewsRequest request) {
         News news = new News();
         news.setTitle(request.getTitle());
@@ -61,4 +86,8 @@ public class NewsService {
         }
         return newsRepository.findById(id).orElse(null);
     }
+
+    public long getNewsCount() {
+        return newsRepository.count();
+    }
 }