Android 解析服务器json数据

2019-11-07 23:22:05

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来源：转载

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首先看下服务器数据这里写图片描述再看看运行效果首先是布局：

<?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:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.zking.mygetjson.MainActivity"> <ListView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@android:id/list"></ListView></LinearLayout>

Activity代码

package com.zking.mygetjson;import android.app.ListActivity;import android.net.Uri;import android.os.AsyncTask;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.LinearLayout;import android.widget.TextView;import com.google.gson.Gson;import com.google.gson.reflect.TypeToken;import com.zking.entity.BlogsType;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.StringBufferInputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.util.ArrayList;import java.util.List;import java.util.StringTokenizer;public class MainActivity extends ListActivity { PRivate List<BlogsType> blogsTypes = new ArrayList<>(); private MyAdapter myAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myAdapter = new MyAdapter(); setListAdapter(myAdapter); new MyTask().execute(); } private class MyTask extends AsyncTask{ @Override protected Object doInBackground(Object[] params) { try { URL url = new URL(getString(R.string.server_name) + "/blogstype/getblogstype"); HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); httpURLConnection.setRequestMethod("GET"); httpURLConnection.setConnectTimeout(5000); InputStream is = httpURLConnection.getInputStream(); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is,"utf-8")); StringBuffer buffer = new StringBuffer(); String s = null; while ((s=bufferedReader.readLine())!=null){ buffer.append(s); } blogsTypes = new Gson().fromJson(buffer.toString(),new TypeToken<List<BlogsType>>(){}.getType()); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; } @Override protected void onPostExecute(Object o) { super.onPostExecute(o); myAdapter.notifyDataSetChanged(); } } private class MyAdapter extends BaseAdapter{ @Override public int getCount() { return blogsTypes.size(); } @Override public Object getItem(int position) { return blogsTypes.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { LinearLayout linearLayout = new LinearLayout(MainActivity.this); TextView textView = new TextView(MainActivity.this); TextView textView1 = new TextView(MainActivity.this); textView.setText(blogsTypes.get(position).getBtid()+""); textView1.setText(blogsTypes.get(position).getBtname()); linearLayout.addView(textView); linearLayout.addView(textView1); return linearLayout; } }}

实体类

package com.zking.entity;/** * Created by Administrator on 2017/2/25. */public class BlogsType { private int btid; private String btname; private String btintroduce; private String btimage; public int getBtid() { return btid; } public void setBtid(int btid) { this.btid = btid; } public String getBtname() { return btname; } public void setBtname(String btname) { this.btname = btname; } public String getBtintroduce() { return btintroduce; } public void setBtintroduce(String btintroduce) { this.btintroduce = btintroduce; } public String getBtimage() { return btimage; } public void setBtimage(String btimage) { this.btimage = btimage; }}

权限

<uses-permission android:name="android.permission.INTERNET"/>

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