方法一：

1.在Android Studio中按F4快捷鍵進入PRoject Structure

2點擊+號

.

3.選擇Library dependency

4.搜索GSON

5.添加進去

方法二：

在buil的.gradle中輸入

compile 'com.google.code.gson:gson:2.6.2'——————————————————————————–
綜上就會看到添加成功
—————————–
GsonFormat的安裝
使用方法：
安裝后重啟android studio
然后在最上方code-Generate-GsonFormat
點OK就生成了
package com.example.myapplication;/** * Created by 小新 on 2016/3/24. */public class gson  {    /**     * name : 王五     * gender : man     * age : 15     * height : 140cm     */    private String name;    private String gender;    private int age;    private String height;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getGender() {        return gender;    }    public void setGender(String gender) {        this.gender = gender;    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    public String getHeight() {        return height;    }    public void setHeight(String height) {        this.height = height;    }}
簡單使用Demo
1.比如獲取的Json數據是
String Data = "{students:[{name:'魏祝林',age:25},{name:'阿魏',age:26}],class:'三年二班'}  ";我們根據這個使用GsonFormat構建實體類
import com.google.gson.annotations.SerializedName;import java.util.List;/** * Created by 小新 on 2016/3/24. */public class bean {    /**     * students : [{"name":"魏祝林","age":25},{"name":"阿魏","age":26}]     * class : 三年二班     */    @SerializedName("class")    private String classX;    /**     * name : 魏祝林     * age : 25     */    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;        }    }}2.然后使用Gson解析數據
String Data = "{students:[{name:'魏祝林',age:25},{name:'阿魏',age:26}],class:'三年二班'}  ";Gson gson = new Gson();bean b = gson.fromJson(Data,bean.class);Log.v("Tag",b.getClassX());可以解析出他的班級是三年二班