通过JSON对象迭代从服务器接收 [英] Iterating through json objects received from the server

问题描述

我有一大群从Web服务器接收的JSON对象。我想从所有的JSON对象获取的所有数据。对于我如何通过JSON对象重复的话，那所有的值可以被存储在ArrayList中。

这是从服务器接收到我的JSON对象的样本模型。我需要的所有资料（姓名和所在城市）两个的ArrayList。对于如何通过JSON对象做我的循环。没有办法获得的数据作为从服务器JSON阵列。这就是为什么我在这里问。如果是JSON数组，这本来是我更容易。所以，请帮助我..

  [{姓名：阿斌，城市：AA}，{姓名：亚历克斯，城市：BB}，。 ......一个大集合的JSON对象...]
 

解决方案

您可以使用的 GSON 并解析字符串到Java对象。

例如你有一个类。

 公共类位置{

    私人字符串名称;

    私人字符串的城市;

    // getter和setter

}
 

和你的类，你可以只解析为 Location类

  GSON GSON =新GSON（）;

位置[]位置= gson.fromJson（jsonString，位置[]类。）;
 

之后，你可以通过位置环

 的for（int i = 0; I＆LT; locations.length;我++）{

     的System.out.println（位置[I] .getName（））;

}
 

如果你需要从名字单列市

  ArrayList的名称=新的ArrayList（）;
ArrayList的城市=新的ArrayList（）;

的for（int i = 0; I＆LT; locations.length;我++）{

   name.add（位置[I] .getName（））;
    city​​.add（位置[I] .getCity（））;

}
 

I have a large group of json objects received from web server. I want to get all the data from all the json objects. For that How do I iterate through the json object so, that all the values can be stored on arraylist..

This is a sample model of my json object received from server. I need all the data (name and city) in two arraylists. For that how do I loop through the json objects. There is no way of getting the data as json array from the server. That's why I asked here. If it was json array, It would have been easier for me. So please help me..

[{"Name":"abin","City":"aa"},{"Name":"alex","City":"bb"},....... a large collection of json objects...]

解决方案

You could use Gson and parse the string to a java object.

For example you have a class.

public class Location{

    private String name;

    private String city;

    //getters and setters

}

and in your class you could just parse it to Location class

Gson gson=new Gson();

Location[] locations=gson.fromJson(jsonString,Location[].class);

after that you could loop through the locations

for(int i=0;i<locations.length;i++){

     System.out.println(locations[i].getName());

}

if you need to separate the city from the name

ArrayList name=new ArrayList();
ArrayList city=new ArrayList();

for(int i=0;i<locations.length;i++){

   name.add(locations[i].getName());
    city.add(locations[i].getCity());

}

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