SpringBoot知识体系+Vue3 实战WIKI知识库系统笔记 demo5_req&resp
请求和返回值的封装。
一般情况下请求类不用封装。这个项目用到了,就按照它的写。
返回值封装时可以有的。一般我们查询用户,返回值的字段和数据库的字段并不是一一对应的,比如说用户的密码我们就不能返回给用户
封装请求实体类:EbookReq.java
package com.roc.wiki.req;
public class EbookReq {
private Long id;
private String name;
getter, setter...
}
使用方法:
@GetMapping("/ebookLikeReq")
public CommonResp ebookLikeList(EbookReq req) {
CommonResp<List<Ebook>> resp = new CommonResp<>();
List<Ebook> ebookList = ebookService.listLike(req.getName());
resp.setContent(ebookList);
return resp;
}
封装返回实体类:EbookResp.java
它其实和Ebook
实体类一摸一样。这里暂时没有改变。
package com.roc.wiki.resp;
public class EbookResp {
private Long id;
private String name;
private Long category1Id;
private Long category2Id;
private String description;
private String cover;
private Integer docCount;
private Integer viewCount;
private Integer voteCount;
}
使用:
// 返回类。
public List<EbookResp> listLikeResp(String name) {
EbookExample ebookExample = new EbookExample();
EbookExample.Criteria criteria = ebookExample.createCriteria();
criteria.andNameLike("%" + name + "%");
List<Ebook> ebooks = ebookMapper.selectByExample(ebookExample);
ArrayList<EbookResp> ebookResps = new ArrayList<>();
for (Ebook ebook : ebooks) {
EbookResp ebookResp = new EbookResp();
BeanUtils.copyProperties(ebook, ebookResp);
ebookResps.add(ebookResp);
}
return ebookResps;
}
@GetMapping("/ebookLikeReqResp")
public CommonResp ebookLikeListResp(EbookReq req) {
CommonResp<List<EbookResp>> resp = new CommonResp<>();
List<EbookResp> ebookList = ebookService.listLikeResp(req.getName());
resp.setContent(ebookList);
return resp;
}
返回结果
GET http://localhost:8080/ebookLikeReqResp?name=vue
HTTP/1.1 200
Content-Type: application/json
Transfer-Encoding: chunked
Date: Sun, 21 Nov 2021 11:50:04 GMT
Keep-Alive: timeout=60
Connection: keep-alive
{
"success": true,
"message": null,
"content": [
{
"id": 2,
"name": "Vue 入门教程",
"category1Id": null,
"category2Id": null,
"description": "零基础入门 Vue 开发,企业级应用开发最佳首选框架",
"cover": null,
"docCount": null,
"viewCount": null,
"voteCount": null
}
]
}
Response code: 200; Time: 339ms; Content length: 214 bytes