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完成了/news/getNewsList全数据流程

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高子兴 2024-07-03 12:36:27 +08:00
parent f9a6a3c481
commit 3579f93c0d
4 changed files with 84 additions and 34 deletions
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70
src/main/java/org/cmh/backend/NewsManagement/controller/NewsController.java
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@ -1,43 +1,45 @@
package org.cmh.backend.NewsManagement.controller;
import org.cmh.backend.NewsManagement.dto.GetNewsByPageRequest;
import org.cmh.backend.NewsManagement.model.News;
import org.cmh.backend.NewsManagement.service.NewsService;
import org.cmh.backend.Utils.JwtVerify;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/api/news")
@RequestMapping("/news")
public class NewsController {
// @PostMapping("/example")
// public ResponseEntity<ExampleResponse> example(@RequestBody ExampleRequest request) {
// return new ResponseEntity<>(new ExampleResponse("Hello World!"), HttpStatus.OK);
@Autowired
private NewsService newsService;
@GetMapping("/getNewsPage")
@JwtVerify
public ResponseEntity<Page<News>> getNewsPage(@RequestBody GetNewsByPageRequest request) {
return new ResponseEntity<>(newsService.getNewsByPage(request), HttpStatus.OK);
}
// @PostMapping
// public ResponseEntity<String> createNews(@RequestBody NewsRequest request) {
// // TODO: 实现创建资讯的逻辑
// return new ResponseEntity<>("创建成功", HttpStatus.OK);
// }
//
// @PutMapping("/{id}")
// public ResponseEntity<String> updateNews(@PathVariable Long id, @RequestBody NewsRequest request) {
// // TODO: 实现修改资讯的逻辑
// return new ResponseEntity<>("修改成功", HttpStatus.OK);
// }
//
// @DeleteMapping("/{id}")
// public ResponseEntity<String> deleteNews(@PathVariable Long id) {
// // TODO: 实现删除资讯的逻辑
// return new ResponseEntity<>("删除成功", HttpStatus.OK);
// }
@GetMapping
public ResponseEntity<List<NewsResponse>> getNewsList(
@RequestParam(required = false) String title,
@RequestParam(required = false) String summary,
@RequestParam(required = false) String author) {
// TODO: 实现获取资讯列表的逻辑
return new ResponseEntity<>(new ArrayList<>(), HttpStatus.OK);
}
@PostMapping
public ResponseEntity<String> createNews(@RequestBody NewsRequest request) {
// TODO: 实现创建资讯的逻辑
return new ResponseEntity<>("创建成功", HttpStatus.OK);
}
@PutMapping("/{id}")
public ResponseEntity<String> updateNews(@PathVariable Long id, @RequestBody NewsRequest request) {
// TODO: 实现修改资讯的逻辑
return new ResponseEntity<>("修改成功", HttpStatus.OK);
}
@DeleteMapping("/{id}")
public ResponseEntity<String> deleteNews(@PathVariable Long id) {
// TODO: 实现删除资讯的逻辑
return new ResponseEntity<>("删除成功", HttpStatus.OK);
}
}

13
src/main/java/org/cmh/backend/NewsManagement/dto/GetNewsByPageRequest.java Normal file
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@ -0,0 +1,13 @@
package org.cmh.backend.NewsManagement.dto;
import lombok.Getter;
import lombok.Setter;
import org.cmh.backend.Utils.JwtRequest;
@Getter
@Setter
public class GetNewsByPageRequest extends JwtRequest {
private Integer pageNo;
private Integer pageSize;
}

6
src/main/java/org/cmh/backend/NewsManagement/repository/NewsRepository.java
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@ -1,8 +1,13 @@
package org.cmh.backend.NewsManagement.repository;
import org.cmh.backend.NewsManagement.model.News;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import java.util.ArrayList;
import java.util.List;
public interface NewsRepository extends JpaRepository<News, Long> {
News findByTitle(String title);
@ -16,4 +21,5 @@ public interface NewsRepository extends JpaRepository<News, Long> {
News findByTitleAndSummaryAndAuthorAndImagePath(String title, String summary, String author, String imagePath);
Page<News> findAllByOrderByIdDesc(Pageable pageable);
}

29
src/main/java/org/cmh/backend/NewsManagement/service/NewsService.java Normal file
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@ -0,0 +1,29 @@
package org.cmh.backend.NewsManagement.service;
import org.cmh.backend.NewsManagement.dto.GetNewsByPageRequest;
import org.cmh.backend.NewsManagement.model.News;
import org.cmh.backend.NewsManagement.repository.NewsRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
@Service
public class NewsService {
@Autowired
private NewsRepository newsRepository;
public Page<News> getNewsByPage(GetNewsByPageRequest request) {
int pageNo = request.getPageNo();
int pageSize = request.getPageSize();
if (pageNo < 1) {
pageNo = 1;
}
if (pageSize < 1) {
pageSize = 10;
}
Pageable pageable = PageRequest.of(pageNo - 1, pageSize);
return newsRepository.findAllByOrderByIdDesc(pageable);
}
}