[其他]Gson的简单使用(开始到结束)

1.在app的build.gradle内加入

dependencies {compile 'com.google.code.gson:gson:2.6.2'
}

2.创建JObject类

import com.google.gson.Gson;public class JObject {public static <T> T fromJson(String json, Class<T> classOfT) {return new Gson().fromJson(json, classOfT);}@Overridepublic String toString() {return toJson();}public String toJson() {Gson gson = new Gson();return gson.toJson(this);}}

/**例子:

*/

3.创建Json最外层类

public class JMessage  extends  JObject{

	//变量必须和json内的相同public JPeople poeple;}

public class JPeople  extends  JObject{

	//变量必须和json内的相同 Stringpublic String firstName;

public String lastName;

public String email;

4.使用

String json = {"people":[{"firstName":"Brett","lastName":"McLaughlin","email":"aaaa"},"firstName":"Jason","lastName":"Hunter","email":"bbbb"},{"firstName":"Elliotte","lastName":"Harold","email":"cccc"}]};

JMessage  msg = JMsg.fromJson(json, JMessage.class) ;

JPeople jPeople =  msg.poeple;