Merge branch 'personal/heshunme/news' into merge
This commit is contained in:
commit
8b25a92b77
@ -0,0 +1,65 @@
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package org.cmh.backend.NewsManagement.controller;
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import org.cmh.backend.NewsManagement.dto.UploadFileResponse;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.UrlResource;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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@RestController
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@CrossOrigin // 如果前端和后端不在同一个域名或端口下，需要启用跨域
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public class FileController {
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private static final String UPLOAD_DIR = "uploads/";
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@PostMapping("/news/uploadPic")
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public ResponseEntity<UploadFileResponse> uploadFile(@RequestParam("file") MultipartFile file) {
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if (file.isEmpty()) {
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return new ResponseEntity<>(new UploadFileResponse("文件不能为空", null), HttpStatus.BAD_REQUEST);
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}
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try {
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// 确保上传目录存在
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Path uploadDirPath = Paths.get(UPLOAD_DIR);
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if (!Files.exists(uploadDirPath)) {
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Files.createDirectories(uploadDirPath);
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}
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// 生成文件路径
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byte[] bytes = file.getBytes();
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Path path = Paths.get(UPLOAD_DIR + file.getOriginalFilename());
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Files.write(path, bytes);
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// 返回成功信息
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return new ResponseEntity<>(new UploadFileResponse("文件上传成功", "/api/news/files/" + file.getOriginalFilename()), HttpStatus.OK);
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} catch (IOException e) {
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return new ResponseEntity<>(new UploadFileResponse("文件上传失败", null), HttpStatus.INTERNAL_SERVER_ERROR);
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}
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}
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@GetMapping("/news/files/{filename}")
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public ResponseEntity<Resource> getFile(@PathVariable String filename) {
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try {
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Path filePath = Paths.get(UPLOAD_DIR).resolve(filename).normalize();
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Resource resource = new UrlResource(filePath.toUri());
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if (resource.exists() && resource.isReadable()) {
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return ResponseEntity.ok()
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.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + resource.getFilename() + "\"")
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.body(resource);
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} else {
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return new ResponseEntity<>(HttpStatus.NOT_FOUND);
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}
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} catch (Exception e) {
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return new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR);
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}
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}
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}
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@ -0,0 +1,104 @@
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package org.cmh.backend.NewsManagement.controller;
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import jakarta.persistence.EntityNotFoundException;
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import org.cmh.backend.NewsManagement.dto.GetNewsListResponse;
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import org.cmh.backend.NewsManagement.dto.MessageResponse;
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import org.cmh.backend.NewsManagement.dto.NewsRequest;
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import org.cmh.backend.NewsManagement.dto.SearchNewsRequest;
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import org.cmh.backend.NewsManagement.model.News;
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import org.cmh.backend.NewsManagement.service.NewsService;
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import org.cmh.backend.Utils.JwtUtil;
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import org.cmh.backend.Utils.JwtVerify;
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import org.cmh.backend.authentication.model.UserHS;
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import org.cmh.backend.authentication.service.UserService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.dao.DataIntegrityViolationException;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.*;
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import java.util.List;
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@RestController
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@RequestMapping("/news")
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public class NewsController {
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@Autowired
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private NewsService newsService;
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@Autowired
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private UserService userService;
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@GetMapping
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@JwtVerify
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public ResponseEntity<GetNewsListResponse> getNewsByRange(@RequestParam Integer start, @RequestParam Integer end, @RequestParam String token) {
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String username = JwtUtil.extractUsername(token);
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UserHS user = userService.getUserByUsername(username);
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// TODO:完善用户权限
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if (user.getSuperAdmin()) {
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} else {
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}
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if (start >= end) {
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return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
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}
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long newsCount = newsService.getNewsCount();
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return new ResponseEntity<>(new GetNewsListResponse(newsCount, newsService.getNewsByRange(start, end, user)), HttpStatus.OK);
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}
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@PostMapping("/search")
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@JwtVerify
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public ResponseEntity<GetNewsListResponse> searchNews(@RequestBody SearchNewsRequest request) {
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List<News> newsList = newsService.searchNews(request);
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long newsCount = newsList.size();
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return new ResponseEntity<>(new GetNewsListResponse(newsCount, newsList), HttpStatus.OK);
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}
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@GetMapping("/{id}")
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@JwtVerify
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public ResponseEntity<News> getNewsPage(@PathVariable Long id, @RequestParam String token) {
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try {
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return new ResponseEntity<>(newsService.getNewsById(id), HttpStatus.OK);
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} catch (EntityNotFoundException e) {
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return new ResponseEntity<>(HttpStatus.NOT_FOUND);
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}
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}
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@PostMapping
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@JwtVerify
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public ResponseEntity<MessageResponse> createNews(@RequestBody NewsRequest request) {
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try {
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newsService.createNews(request);
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} catch (DataIntegrityViolationException e) {
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return new ResponseEntity<>(new MessageResponse("创建失败，文章已存在或缺少字段"), HttpStatus.BAD_REQUEST);
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} catch (Exception e) {
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return new ResponseEntity<>(new MessageResponse("创建失败:" + e.getMessage()), HttpStatus.BAD_REQUEST);
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}
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return new ResponseEntity<>(new MessageResponse("创建成功"), HttpStatus.CREATED);
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}
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@PutMapping("/{id}")
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@JwtVerify
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public ResponseEntity<MessageResponse> updateNews(@PathVariable Long id, @RequestBody NewsRequest request) {
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try {
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newsService.updateNews(id, request);
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} catch (DataIntegrityViolationException e) {
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return new ResponseEntity<>(new MessageResponse("修改失败，新标题已存在或缺少字段"), HttpStatus.BAD_REQUEST);
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} catch (Exception e) {
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return new ResponseEntity<>(new MessageResponse("创建失败:" + e.getMessage()), HttpStatus.BAD_REQUEST);
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}
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return new ResponseEntity<>(new MessageResponse("修改成功"), HttpStatus.OK);
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}
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@DeleteMapping("/{id}")
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@JwtVerify
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public ResponseEntity<MessageResponse> deleteNews(@PathVariable Long id, @RequestParam String token) {
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try {
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newsService.deleteNews(id);
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} catch (EntityNotFoundException e) {
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return new ResponseEntity<>(new MessageResponse("删除失败，文章不存在"), HttpStatus.BAD_REQUEST);
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}
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return new ResponseEntity<>(new MessageResponse("删除成功"), HttpStatus.OK);
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}
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}
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@ -0,0 +1,17 @@
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package org.cmh.backend.NewsManagement.dto;
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import lombok.AllArgsConstructor;
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import lombok.Getter;
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||||
import lombok.Setter;
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||||
import org.cmh.backend.NewsManagement.model.News;
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import java.util.List;
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@Getter
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@Setter
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@AllArgsConstructor
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public class GetNewsListResponse {
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Long newsCount;
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List<News> newsList;
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}
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@ -0,0 +1,12 @@
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package org.cmh.backend.NewsManagement.dto;
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||||
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||||
import lombok.AllArgsConstructor;
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||||
import lombok.Getter;
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||||
import lombok.Setter;
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||||
|
||||
@Getter
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||||
@Setter
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||||
@AllArgsConstructor
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||||
public class MessageResponse {
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String message;
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}
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@ -0,0 +1,16 @@
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package org.cmh.backend.NewsManagement.dto;
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import lombok.Getter;
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import lombok.Setter;
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import org.cmh.backend.Utils.JwtRequest;
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@Getter
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@Setter
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public class NewsRequest extends JwtRequest {
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private String title;
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private String summary;
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private String content;
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private String imagePath;
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private String author;
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private String tenant;
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}
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@ -0,0 +1,15 @@
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package org.cmh.backend.NewsManagement.dto;
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import lombok.Getter;
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import lombok.Setter;
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import org.cmh.backend.Utils.JwtRequest;
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@Getter
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@Setter
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public class SearchNewsRequest extends JwtRequest {
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private String author;
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private String title;
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private String imagePath;
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private String summary;
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private String sortBy;
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}
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@ -0,0 +1,16 @@
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package org.cmh.backend.NewsManagement.dto;
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import lombok.Getter;
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import lombok.Setter;
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@Getter
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@Setter
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public class UploadFileResponse extends MessageResponse {
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private String url;
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||||
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public UploadFileResponse(String message, String url) {
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super(message);
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this.url = url;
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||||
}
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}
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36
src/main/java/org/cmh/backend/NewsManagement/model/News.java
Normal file
36
src/main/java/org/cmh/backend/NewsManagement/model/News.java
Normal file
@ -0,0 +1,36 @@
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package org.cmh.backend.NewsManagement.model;
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import jakarta.persistence.*;
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import lombok.Getter;
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import lombok.Setter;
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import org.hibernate.annotations.CreationTimestamp;
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import java.time.LocalDateTime;
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@Setter
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@Getter
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@Entity
|
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public class News {
|
||||
@Id
|
||||
@GeneratedValue(strategy = GenerationType.IDENTITY)
|
||||
private Long id;
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||||
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@Column(nullable = false, unique = true)
|
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private String title;
|
||||
|
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@Column(nullable = false)
|
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private String summary;
|
||||
|
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@Column(nullable = false)
|
||||
private String content;
|
||||
|
||||
private String imagePath;
|
||||
|
||||
@Column(nullable = false)
|
||||
private String author;
|
||||
|
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@CreationTimestamp
|
||||
private LocalDateTime createdAt;
|
||||
// TODO:添加外键绑定
|
||||
private String tenant;
|
||||
}
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@ -0,0 +1,23 @@
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package org.cmh.backend.NewsManagement.repository;
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|
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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.List;
|
||||
|
||||
public interface NewsRepository extends JpaRepository<News, Long> {
|
||||
Page<News> findAllByOrderByIdDesc(Pageable pageable);
|
||||
|
||||
Page<News> findByTenantOrderByIdDesc(String tenant, Pageable pageable);
|
||||
|
||||
List<News> findByTitleContainingOrSummaryContainingOrAuthorContainingOrImagePathContainingAndTenantEquals(
|
||||
String title,
|
||||
String summary,
|
||||
String author,
|
||||
String imagePath,
|
||||
String tenant);
|
||||
|
||||
List<News> findByTitleContainingOrSummaryContainingOrAuthorContainingOrImagePathContaining(String title, String summary, String author, String imagePath);
|
||||
}
|
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@ -0,0 +1,175 @@
|
||||
package org.cmh.backend.NewsManagement.service;
|
||||
|
||||
import jakarta.persistence.EntityManager;
|
||||
import jakarta.persistence.EntityNotFoundException;
|
||||
import jakarta.persistence.PersistenceContext;
|
||||
import jakarta.persistence.criteria.CriteriaBuilder;
|
||||
import jakarta.persistence.criteria.CriteriaQuery;
|
||||
import jakarta.persistence.criteria.Predicate;
|
||||
import jakarta.persistence.criteria.Root;
|
||||
import org.cmh.backend.NewsManagement.dto.NewsRequest;
|
||||
import org.cmh.backend.NewsManagement.dto.SearchNewsRequest;
|
||||
import org.cmh.backend.NewsManagement.model.News;
|
||||
import org.cmh.backend.NewsManagement.repository.NewsRepository;
|
||||
import org.cmh.backend.Utils.JwtUtil;
|
||||
import org.cmh.backend.authentication.model.UserHS;
|
||||
import org.cmh.backend.authentication.service.UserService;
|
||||
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;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
@Service
|
||||
public class NewsService {
|
||||
@Autowired
|
||||
private NewsRepository newsRepository;
|
||||
|
||||
@Autowired
|
||||
private UserService userService;
|
||||
|
||||
@PersistenceContext
|
||||
private EntityManager entityManager;
|
||||
|
||||
public List<News> getNewsByRange(int start, int end, UserHS user) {
|
||||
if (start < 0 || end <= start) {
|
||||
throw new IllegalArgumentException("Invalid start or end range");
|
||||
}
|
||||
|
||||
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 = null;
|
||||
if (user.getSuperAdmin()) {
|
||||
newsPage = newsRepository.findAllByOrderByIdDesc(pageable);
|
||||
} else {
|
||||
newsPage = newsRepository.findByTenantOrderByIdDesc(user.getUsername(), pageable);
|
||||
}
|
||||
|
||||
if (newsPage.hasContent()) {
|
||||
result.addAll(newsPage.getContent());
|
||||
} else {
|
||||
break; // 如果没有更多内容，提前退出
|
||||
}
|
||||
}
|
||||
|
||||
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());
|
||||
news.setSummary(request.getSummary());
|
||||
news.setContent(request.getContent());
|
||||
news.setAuthor(request.getAuthor());
|
||||
news.setImagePath(request.getImagePath());
|
||||
news.setTenant(request.getTenant());
|
||||
newsRepository.save(news);
|
||||
}
|
||||
|
||||
public void updateNews(Long id, NewsRequest request) {
|
||||
News news = newsRepository.findById(id).orElse(null);
|
||||
if (news != null) {
|
||||
news.setTitle(request.getTitle());
|
||||
news.setSummary(request.getSummary());
|
||||
news.setContent(request.getContent());
|
||||
news.setAuthor(request.getAuthor());
|
||||
news.setImagePath(request.getImagePath());
|
||||
news.setTenant(request.getTenant());
|
||||
newsRepository.save(news);
|
||||
}
|
||||
}
|
||||
|
||||
public void deleteNews(Long id) {
|
||||
if (!newsRepository.existsById(id)) {
|
||||
throw new EntityNotFoundException();
|
||||
}
|
||||
newsRepository.deleteById(id);
|
||||
}
|
||||
|
||||
public News getNewsById(Long id) {
|
||||
if (!newsRepository.existsById(id)) {
|
||||
throw new EntityNotFoundException();
|
||||
}
|
||||
return newsRepository.findById(id).orElse(null);
|
||||
}
|
||||
|
||||
public long getNewsCount() {
|
||||
return newsRepository.count();
|
||||
}
|
||||
|
||||
// TODO:完善用户权限
|
||||
// public List<News> searchNews(SearchNewsRequest request) {
|
||||
// String username = JwtUtil.extractUsername(request.getToken());
|
||||
// UserHS user = userService.getUserByUsername(username);
|
||||
// if (user.getSuperAdmin()) {
|
||||
// return newsRepository.findByTitleContainingOrSummaryContainingOrAuthorContainingOrImagePathContaining(
|
||||
// request.getTitle(),
|
||||
// request.getSummary(),
|
||||
// request.getAuthor(),
|
||||
// request.getImagePath()
|
||||
// );
|
||||
// }
|
||||
// return newsRepository.findByTitleContainingOrSummaryContainingOrAuthorContainingOrImagePathContainingAndTenantEquals(
|
||||
// request.getTitle(),
|
||||
// request.getSummary(),
|
||||
// request.getAuthor(),
|
||||
// request.getImagePath(),
|
||||
// user.getUsername()
|
||||
// );
|
||||
// }
|
||||
public List<News> searchNews(SearchNewsRequest request) {
|
||||
String username = JwtUtil.extractUsername(request.getToken());
|
||||
UserHS user = userService.getUserByUsername(username);
|
||||
|
||||
// Create a list to hold predicates
|
||||
List<Predicate> predicates = new ArrayList<>();
|
||||
// Create the query
|
||||
CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
|
||||
CriteriaQuery<News> criteriaQuery = criteriaBuilder.createQuery(News.class);
|
||||
Root<News> root = criteriaQuery.from(News.class);
|
||||
|
||||
// Build the query conditionally based on non-empty fields
|
||||
if (!request.getTitle().isEmpty()) {
|
||||
predicates.add(criteriaBuilder.like(root.get("title"), "%" + request.getTitle() + "%"));
|
||||
}
|
||||
if (!request.getSummary().isEmpty()) {
|
||||
predicates.add(criteriaBuilder.like(root.get("summary"), "%" + request.getSummary() + "%"));
|
||||
}
|
||||
if (!request.getAuthor().isEmpty()) {
|
||||
predicates.add(criteriaBuilder.like(root.get("author"), "%" + request.getAuthor() + "%"));
|
||||
}
|
||||
if (!request.getImagePath().isEmpty()) {
|
||||
predicates.add(criteriaBuilder.like(root.get("imagePath"), "%" + request.getImagePath() + "%"));
|
||||
}
|
||||
|
||||
if (user.getSuperAdmin()) {
|
||||
// Combine predicates with OR
|
||||
criteriaQuery.where(criteriaBuilder.or(predicates.toArray(new Predicate[0])));
|
||||
} else {
|
||||
// Combine predicates with OR and add tenant condition
|
||||
Predicate tenantPredicate = criteriaBuilder.equal(root.get("tenant"), user.getUsername());
|
||||
predicates.add(tenantPredicate);
|
||||
criteriaQuery.where(criteriaBuilder.and(predicates.toArray(new Predicate[0])));
|
||||
}
|
||||
|
||||
// Execute the query
|
||||
return entityManager.createQuery(criteriaQuery).getResultList();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user