package com.example.jsonresolvetest; import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; import java.util.List; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; import com.example.jsonresolvetest.bean.ArenaBean; import android.support.v7.app.ActionBarActivity; import android.support.v7.app.ActionBar; import android.support.v4.app.Fragment; import android.content.Context; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import android.os.Build; public class MainActivity extends ActionBarActivity { //这个类就是解析类 //1 从网络拿,展示数据,2从本地json里拿,展示数据 private ListView lv_arena; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lv_arena = (ListView) findViewById(R.id.lv_arena); jsonData(MainActivity.this, "jsonarena.json");/**尤其需要注意:这里的json文件要带扩展名,要写成"jsonarena.json" 而不是"jsonarena"*/ } public static JSONObject jsonData(Context context,String fileName){//filename assets目录下的json文件名 JSONObject jsonDate=null; try {
//jsonarena.json文件是放在项目的assets文件夹下的 InputStreamReader inputStreamReader=new InputStreamReader(context.getAssets().open(fileName),"UTF-8"); //找不着jsonarena文件 BufferedReader bufferedReader=new BufferedReader(inputStreamReader); String line; StringBuilder stringBuilder=new StringBuilder(); while ((line=bufferedReader.readLine())!=null){ stringBuilder.append(line); } bufferedReader.close(); inputStreamReader.close(); jsonDate=JSON.parseObject(stringBuilder.toString());//得到JSONobject对象 Log.e("jsonDate","=="+jsonDate); int retArray=jsonDate.getIntValue("ret");//得到ret的内容 Log.e("retArray","=="+retArray); String msgArray = jsonDate.getString("msg");//得到msg的内容 Log.e("msgArray","=="+msgArray); JSONArray arenaArray=jsonDate.getJSONArray("arena");//得到arena节点,不懂得看Log打印就清楚了 Log.e("arenaArray","=="+arenaArray); List<ArenaBean> listArenaBean=JSON.parseArray(arenaArray.toString(),ArenaBean.class); //Series 相当于ArenaBean节点 for(ArenaBean arenaBean:listArenaBean){ Log.e("arena.getId","="+arenaBean.getId()); Log.e("arena.getname","="+arenaBean.getName()); Log.e("arena.getId","="+arenaBean.getStatus()); } } catch (IOException e) { e.printStackTrace(); } return jsonDate; } }
package com.example.jsonresolvetest.bean; public class ArenaBean { private int id; private String name; private int status; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getStatus() { return status; } public void setStatus(int status) { this.status = status; } }