android 如何解析复杂，包含中文key的json数据
通常在项目中，常常会有一些json数据包含中文key，而我们通常用AndroidStudio工具中的插件GsonFormat，使用这个插件将会自动生成实体Bean，然而总是有些后台的变态数据，例如包含中文的key，这时候我们就不能用GsonFormat工具了，我们就得用原始的JSONObject或者JSONArray了。
这里我用一个包含中文Key的Json数据来进行演示。
{
"data": {
"carArchive": {
"2013-05上牌": "5年",
"变速箱": "自动挡",
"排放标准": "国三",
"排放量": "2.3",
"来源": "商家",
"看车地点": "安次区",
"表显里程": "2.0万公里",
"车牌所在地": "廊坊",
"过户次数": "1次过户"
},
"usedCar": {
"brandName": "",
"briefIntro": "2017年4月 2.0万公里 |2.3L 双离合",
"carLocation": "安次区",
"cardLocation": "廊坊",
"constName": "",
"deleteFlag": "0",
"discharge": "国三",
"emission": "2.3",
"gearBox": "自动挡",
"hotFiag": "0",
"isLaunch": "1",
"launchTime": "",
"logoUrl": "https://www.dyhoa.com/mise/20180425/9d222f32-d51d-41b0-9005-5a21582483e7.png",
"marketPrice": 19.23,
"onCardTime2": "2013-05上牌",
"oncardTime": "5年",
"seriesName": "",
"serviceCnt": "0,1,2,3,4,5",
"showMeters": "2.0万公里",
"showName": "奥迪A32018款 30周年纪念版 Sportback 35TFSI 进取版",
"storeId": 1,
"storeIntroduce": "应有尽有，物超所值",
"ucid": "1"
}
}
}我们就把这个json数据放入本地TomCat服务器下进行解析。
首先加入网络权限：
<uses-permission android:name="android.permission.INTERNET"></uses-permission>来看布局mainActivity.xml文件：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/lv_List"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"></ListView>
<GridView
android:id="@+id/gv_List"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:numColumns="3"></GridView>
</LinearLayout>
我们将这个json数据的carArchive对象中的数据用ListView进行展示，将usedCar对象中的数据用GridView数据进行展示。
注入OKHTTP及GSON依赖：
implementation 'com.squareup.okhttp3:okhttp:3.2.0'
implementation 'com.google.code.gson:gson:2.2.4'来看MainActivity代码：
package com.example.administrator.newjsondata;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.GridView;
import android.widget.ListView;
import org.json.JSONObject;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class MainActivity extends AppCompatActivity {
private ListView lv_List;
private List<String> key2List;
private List<String> userList;
private String path = "http://172.16.52.5:8080/zy3/Data2.json"; //TomCat服务器链接
private GridView gv_List;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData();
}
private void initData() {
new OkHttpClient().newCall(new Request.Builder().url(path).build()).enqueue(new Callback() {
private List<String> keyList;
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
//获取json数据
String string = response.body().string();
JSONObject jsonObject = null;
try {
jsonObject = new JSONObject(string);
//最外层是对象，创建对象
JSONObject data = jsonObject.getJSONObject("data");
//data对象中还是对象（carArchive），再次创建对象
JSONObject carArchive = data.getJSONObject("carArchive");
//data对象中还是对象（usedCar），再次创建对象
JSONObject usedCar = data.getJSONObject("usedCar");
//通过key获取迭代器
Iterator<String> iterator = carArchive.keys();
keyList = new ArrayList<>();
final List<String> carArchiveList = new ArrayList<>();
//循环遍历迭代器
while (iterator.hasNext()) {
String next = iterator.next();
keyList.add(next);
}
//利用carArchiveList集合添加（通过carArchive对象获取中文key）
carArchiveList.add(carArchive.getString("2013-05上牌"));
carArchiveList.add(carArchive.getString("变速箱"));
carArchiveList.add(carArchive.getString("排放量"));
carArchiveList.add(carArchive.getString("排放标准"));
carArchiveList.add(carArchive.getString("来源"));
carArchiveList.add(carArchive.getString("看车地点"));
carArchiveList.add(carArchive.getString("表显里程"));
carArchiveList.add(carArchive.getString("车牌所在地"));
carArchiveList.add(carArchive.getString("过户次数"));
//更新UI 切换到主线程（可切换可不切换，毕竟就是在主线程）
runOnUiThread(new Runnable() {
@Override
public void run() {
gv_List.setAdapter(new MyAdapter(keyList, carArchiveList, MainActivity.this));
}
});
//同上
key2List = new ArrayList<>();
userList = new ArrayList<>();
Iterator<String> keys1 = usedCar.keys();
while (keys1.hasNext()) {
keys1.hasNext();
key2List.add(keys1.next());
}
userList.add(usedCar.getString("brandName"));
userList.add(usedCar.getString("briefIntro"));
userList.add(usedCar.getString("carLocation"));
userList.add(usedCar.getString("constName"));
userList.add(usedCar.getString("deleteFlag"));
userList.add(usedCar.getString("discharge"));
userList.add(usedCar.getString("emission"));
userList.add(usedCar.getString("gearBox"));
userList.add(usedCar.getString("hotFiag"));
userList.add(usedCar.getString("isLaunch"));
userList.add(usedCar.getString("launchTime"));
userList.add(usedCar.getString("logoUrl"));
userList.add(usedCar.getString("marketPrice"));
userList.add(usedCar.getString("onCardTime2"));
userList.add(usedCar.getString("oncardTime"));
userList.add(usedCar.getString("seriesName"));
userList.add(usedCar.getString("serviceCnt"));
userList.add(usedCar.getString("showMeters"));
userList.add(usedCar.getString("showName"));
userList.add(usedCar.getString("storeId"));
userList.add(usedCar.getString("storeIntroduce"));
userList.add(usedCar.getString("ucid"));
lv_List.setAdapter(new MyAdapter(key2List, userList, MainActivity.this));
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
private void initView() {
lv_List = (ListView) findViewById(R.id.lv_List);
gv_List = (GridView) findViewById(R.id.gv_List);
}
}
来看GridView(ListView)适配器
package com.example.administrator.newjsondata;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.List;
public class MyAdapter extends BaseAdapter {
private List<String> keyList;
private List<String> carArchiveList;
private Context mContext;
public MyAdapter(List<String> keyList, List<String> carArchiveList, Context mContext) {
this.keyList = keyList;
this.carArchiveList = carArchiveList;
this.mContext = mContext;
}
@Override
public int getCount() {
return carArchiveList.size();
}
@Override
public Object getItem(int i) {
return null;
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder = null;
if (view == null) {
holder = new ViewHolder();
view = LayoutInflater.from(mContext).inflate(R.layout.item_lv, null);
holder.tv_name = view.findViewById(R.id.tv_name);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.tv_name.setText(keyList.get(i) + ":" + "\r\n" + carArchiveList.get(i));
return view;
}
class ViewHolder {
TextView tv_name;
}
}
适配器布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/tv_name"/>
</LinearLayout>