<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.6.6</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>SpringBootJsonDemo</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.4.7</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.79</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins></build></project>

package com.example.domian;import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;import java.io.Serializable;
import java.util.List;/*** @author WenZiR* @projectName SpringBootJsonDemo* @description: TODO* @date 2022-04-08 21:04*/
@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
public class CurrentUserDTO implements Serializable {/*** 姓名*/private String name;/*** 头像*/private String avatar;/*** 用户ID*/@JSONField(name = "userid")private String userId;/*** 邮箱*/private String email;/*** 个性签名*/private String signature;/*** 标题*/private String title;/*** 归属组织*/@JSONField(name = "group")private String groupInfo;/*** 通知计数*/private Integer notifyCount;/*** 未读计数*/private Integer unreadCount;/*** 国家*/private String country;/*** 归属区域*/private GeographicBean geographic;/*** 地址*/private String address;/*** 手机*/private String phone;/*** 标签*/private List<TagsBean> tags;@Data@NoArgsConstructor@AllArgsConstructorpublic static class GeographicBean {/*** province : {"label":"浙江省","key":"330000"}* city : {"label":"杭州市","key":"330100"}*/private ProvinceBean province;private CityBean city;@Datapublic static class ProvinceBean {/*** label : 浙江省* key : 330000*/private String label;private String key;}@Datapublic static class CityBean {/*** label : 杭州市* key : 330100*/private String label;private String key;}}@Datapublic static class TagsBean {/*** key : 0* label : 很有想法的*/private String key;private String label;}
}

package com.example.controller;import com.example.domian.CurrentUserDTO;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.util.ArrayList;
import java.util.List;/*** @author WenZiR* @projectName SpringBootJsonDemo* @description: TODO* @date 2022-04-08 20:57*/
@RestController
public class SpringBootJsonController {@GetMapping("/showJson")public CurrentUserDTO showJson() {CurrentUserDTO   currentUserDTO = null;try {currentUserDTO = (CurrentUserDTO) Class.forName ("com.example.domian.CurrentUserDTO").newInstance ();currentUserDTO.setName ("小米");currentUserDTO.setEmail ("9527@qq.com");List<CurrentUserDTO.TagsBean> tagsBeans = new ArrayList<> ();for (int i = 0; i < 5; i++) {CurrentUserDTO.TagsBean tagsBean = new CurrentUserDTO.TagsBean ();tagsBean.setKey (i+"");tagsBean.setLabel ("很有想法");tagsBeans.add (tagsBean);}currentUserDTO.setTags (tagsBeans);CurrentUserDTO.GeographicBean.ProvinceBean provinceBean = new CurrentUserDTO.GeographicBean.ProvinceBean ();provinceBean.setKey ("33000");provinceBean.setLabel ("浙江省");CurrentUserDTO.GeographicBean.CityBean cityBean = new CurrentUserDTO.GeographicBean.CityBean ();cityBean.setKey ("杭州市");cityBean.setLabel ("330100");currentUserDTO.setGeographic (new CurrentUserDTO.GeographicBean (provinceBean,cityBean));} catch (Exception e) {e.printStackTrace ();}return currentUserDTO;}}

结果

の随便写写

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结果

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