Android中解析一段Json

素颜马尾好姑娘i 2022-07-15 00:04 205阅读 0赞

一：需要解析的json字段

{
       "result": 1
        "presons": [
            {
                "url": "http://www.imooc.com/video/8331/0",
                "name": "kirito",
                "schoolInfos": [
                    {
                        "school_name": "北大"
                    },
                    {
                        "school_name": "清华"
                    }
                ],
                "age": 18
            }
        ],
    }

二：解析的代码

private List<Person> parseJson(String json){
            List<Person> personList = new ArrayList<>();
            try {
                JSONObject obj = new JSONObject(json);
                int result = obj.getInt("result");
                
                if (result == 1){
                    JSONArray persons = obj.getJSONArray("persons");
                    for (int i = 0; i < persons.length(); i++) {
                        Person per = new Person();
                        
                        JSONObject person = persons.getJSONObject(i);
                        String url = person.getString("url");
                        String name = person.getString("name");
                        int age = person.getInt("age");
    
                        List<SchoolInfo> list_schinfo = new ArrayList<>();
                        JSONArray schoolinfos = person.getJSONArray("schoolinfos");
                        for (int j = 0; j < schoolinfos.length(); j++) {
                            JSONObject schoolinfo = schoolinfos.getJSONObject(j);
                            String school_name = schoolinfo.getString("school_name");
                            list_schinfo.add(new SchoolInfo(school_name));
                        }
                        per.setAge(age);
                        per.setUrl(url);
                        per.setSchoolInfos(list_schinfo);
                        per.setName(name);
    
                        personList.add(per);
                    }
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
            return personList;
        }

三：辅助类

package com.example.kirito.myapplication.gson;
    
    import java.util.List;
    
    /**
     * Created by kirito on 2016.10.25.
     */
    
    public class Person {
        private String name;
        private String url;
        private int age;
        private List<SchoolInfo> schoolInfos;
    
        public List<SchoolInfo> getSchoolInfos() {
            return schoolInfos;
        }
    
        public void setSchoolInfos(List<SchoolInfo> schoolInfos) {
            this.schoolInfos = schoolInfos;
        }
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public String getUrl() {
            return url;
        }
    
        public void setUrl(String url) {
            this.url = url;
        }
    
        public int getAge() {
            return age;
        }
    
        public void setAge(int age) {
            this.age = age;
        }
    
    
    }

package com.example.kirito.myapplication.gson;
    
    import java.util.List;
    
    /**
     * Created by kirito on 2016.10.25.
     */
    
    public class Result {
        private int result;
        private List<Person> presons;
    
        public int getResult() {
            return result;
        }
    
        public void setResult(int result) {
            this.result = result;
        }
    
        public List<Person> getPresons() {
            return presons;
        }
    
        public void setPresons(List<Person> presons) {
            this.presons = presons;
        }
    }

package com.example.kirito.myapplication.gson;
    
    /**
     * Created by kirito on 2016.10.25.
     */
    
    public class SchoolInfo {
        private String school_name;
    
        public SchoolInfo(String school_name) {
            this.school_name = school_name;
        }
    
        public String getSchool_name() {
            return school_name;
        }
    
        public void setSchool_name(String school_name) {
            this.school_name = school_name;
        }
    }