Gson的使用会让json格式解析变的非常简单和高效。
第一步：增加Gson依赖

implementation 'com.solidfire.code.gson:gson:2.6.2'

第二步：安装GsonFormat插件快速解析实体类
安装插件的步骤可以查看https://www.jianshu.com/p/6a389ef8a665

json范例：{students:[{name:‘小名’,age:25},{name:‘阿名’,age:26}],classX:‘大班’}

使用插件解析的实体类

package com.example.lc.mydemo.bean;

import java.util.List;

public class Student {

    /**
     * students : [{"name":"小名","age":25},{"name":"阿名","age":26}]
     * class : 大班
     */

    private String classX;
    private List<StudentsBean> students;


    public String getClassX() {
        return classX;
    }

    public void setClassX(String classX) {
        this.classX = classX;
    }

    public List<StudentsBean> getStudents() {
        return students;
    }

    public void setStudents(List<StudentsBean> students) {
        this.students = students;
    }

    public static class StudentsBean {
 
        private String name;
        private int age;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }
    }
}

第三步：解析JSON

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        String Data = "{students:[{name:'小名',age:25},{name:'阿名',age:26}],classX:'大班'}";
        Gson gson = new Gson();
        Student b = gson.fromJson(Data,Student.class);
        Log.e(TAG, "onCreate: "+b.getClassX());
        List<Student.StudentsBean> list=b.getStudents();
        int count=list.size();
        for(int i=0;i<count;i++){
          	 Log.e(TAG, "onCreate: "+list.get(i).getName());
        }

    }

解析结果：

 E/MainActivity: onCreate: 大班
 E/MainActivity: onCreate: 小名
 E/MainActivity: onCreate: 阿名