Android中解析一段Json

最新推荐文章于 2025-04-24 09:52:40 发布

濯君

最新推荐文章于 2025-04-24 09:52:40 发布

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分类专栏： json 文章标签： json

本文链接：https://blog.youkuaiyun.com/zzldm/article/details/52926532

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本文介绍了一个具体的JSON数据解析示例，展示了如何使用Java解析嵌套的JSON数据，并提供了完整的代码实现，包括Person、SchoolInfo等类的设计。

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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;
    }
}