本文数据转json格式的入门代码，创建java文件即可
用于将实体信息封装成json格式数据 使用工具：myeclipse 导入包gson.jar 项目结构：SchoolInfo.java
public class SchoolInfo {private String mSchoolName;public void setSchoolName(String schoolName){this.mSchoolName = schoolName;}public String getSchoolName(){return mSchoolName;}}
Person.java
import java.util.List;public class Person {private String mName;private int mAge;private String mUrl;private List<SchoolInfo> mSchoolInfo;/*get方法*/public String getName(){return mName;}public int getAge(){return mAge;}public String getUrl(){return mUrl;}public List<SchoolInfo> getSchoolInfo(){return mSchoolInfo;}/*set方法*/public void setName(String name){this.mName = name;}public void setAge(int age){this.mAge = age;}public void setUrl(String url){this.mUrl = url;}public void setSchoolInfo(List<SchoolInfo> schoolInfo){this.mSchoolInfo = schoolInfo;}}
Result.java
import java.util.List;public class Result {private int mResult;private List<Person> mPersonData;/*get方法*/public int getResult(){return mResult;}public List<Person> getPersonData(){return mPersonData;}/*set方法*/public void setResult(int result){this.mResult = result;}public void setPersonData(List<Person> personData){this.mPersonData = personData;}}
TestJson.java
import java.util.ArrayList;import java.util.List;import com.google.gson.Gson;/*** 生成json代码,封装实体数据* @author xiaoyuer**/public class TestJson {/*封装的概念，一级管理一级的封装，不要跨级封装*/public static void main(String[] args){Result result = new Result();result.setResult(1);List<Person> personData = new ArrayList<Person>();result.setPersonData(personData);Person person1 = new Person();person1.setName("nate");person1.setAge(12);person1.setUrl("http://h./image/pic/item/6c224f4a20a446239e8d311c9b22720e0cf3d70d.jpg");List<SchoolInfo> schoolInfos = new ArrayList<SchoolInfo>();SchoolInfo schoolInfo1 = new SchoolInfo();SchoolInfo schoolInfo2 = new SchoolInfo();schoolInfo1.setSchoolName("北大");schoolInfo2.setSchoolName("清华");schoolInfos.add(schoolInfo1);schoolInfos.add(schoolInfo2);person1.setSchoolInfo(schoolInfos);personData.add(person1);Gson gson = new Gson();//打印，通过toJson方法将所有的数据转化为json格式System.out.println(gson.toJson(result));}}
如果觉得《将数据转换为json格式代码》对你有帮助，请点赞、收藏，并留下你的观点哦！
