循环，并创建一个阵列从JSON对象

你好我的工作，它解析从他们的API一些JSON的应用程序。我得到这个工作，这是显示所有的信息。我现在面临的问题是，我似乎无法得到来自JSON String的"FileID"：循环，并创建一个阵列从JSON对象

输出是这样的：

{ error: "", <fileId>: { infoToken: <string>, deleteToken: <string>, size: <int>, sha1: <string>, filename: <string> } }

的"fileID"随机为每个文件生成。我怎样才能抓住并解析它？我得到所有其他信息就好了，只需要获得"fileId"

所以，当这样做，我想收集所有的信息，并把它放到ListView，我需要循环通过收到的每一个项目。

public class FilesActivity extends SherlockActivity { 

    private static String TAG_FILENAME = "filename"; 
    private static String TAG_SIZE = "size"; 
    private static String TAG_ITOKEN = "infoToken"; 
    private static String TAG_DTOKEN = "deleteToken"; 
    private static String TAG_SHA1 = "sha1"; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.dblist); 

     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
     getSupportActionBar().setTitle("Files"); 

     String response = null; 
     DefaultHttpClient httpClient = new DefaultHttpClient(); 
     ResponseHandler <String> resonseHandler = new BasicResponseHandler(); 
     HttpPost postMethod = new HttpPost("http://api.bayfiles.net/v1/account/files?session=<sessionId>"); 

     try { 
      JSONObject json = new JSONObject(); 
       json.put("filename", "error"); 

       postMethod.setEntity(new ByteArrayEntity(json.toString().getBytes("UTF8"))); 
       postMethod.setHeader("Content-Type", "application/json"); 
       response = httpClient.execute(postMethod,resonseHandler); 
       TextView txt = (TextView)findViewById(R.id.nodata); 
       JSONObject request = new JSONObject(response); 
       for (Iterator<?> keyIterator = request.keys(); keyIterator.hasNext();) { 
        String key = (String) keyIterator.next(); 
        JSONObject object = request.optJSONObject(key); 

        if (object != null) { 
         //Setting TAGs 
         TAG_FILENAME = object.getString("filename"); 
         TAG_SIZE = object.getString("size"); 
         TAG_ITOKEN = object.getString("infoToken"); 
         TAG_DTOKEN = object.getString("deleteToken"); 
         TAG_SHA1 = object.getString("sha1");    


         txt.setText(
           TAG_FILENAME + "\n" 
           + TAG_SIZE + "\n" 
           + TAG_ITOKEN + "\n" 
           + TAG_DTOKEN + "\n" 
           + TAG_SHA1 + "\n" 
           + txt.getText() 
           );      

         Log.d("log_tag", object.getString("filename")); 
        } 
       }   
     } 
     catch(Exception e) 
     {  
      e.printStackTrace(); 
      Log.d("log_tag", "Error: " + e.toString()); 

     } 
    } 
}

任何帮助非常感谢！

编辑：试过，不知道是否会工作寿：

ArrayList<fileObject> objectList = new ArrayList<fileObject>(); 
        if (object != null) { 

         fileObject obj = new fileObject(); 

         obj.setFileName(object.getString("filename")); 
         obj.setSize(object.getString("size")); 
         obj.setInfoToken(object.getString("infoToken")); 
         obj.setDeleteToken(object.getString("deleteToken")); 
         obj.setSha1(object.getString("sha1")); 

         objectList.add(obj);   

         Log.d("log_tag", object.getString("filename")); 
        } 
        adapter = mView.new fileObjectAdapter(mContext); 
        setListAdapter(adapter); 
        adapter.addAll(objectList); //if honeycomb or higher 
        for (fileObject obj : objectList) { 
         adapter.add(obj); 
         }

和我的适配器：

package com.dev.jsontest.adapter; 


import com.dev.jsontest.R; 

import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 

public class fileObjectAdapter extends ArrayAdapter<fileObject> { 

    public fileObjectAdapter(Context context) { 
     super(context, 0); 
    } 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     if (convertView == null) { 
      convertView = LayoutInflater.from(getContext()).inflate(R.layout.dbitems, parent, false); 
     } 

     final fileObject item = getItem(position); 

     //define your view that you want each list item to look like. Make sure to set every field in your view. 

     return convertView; 
    } 
}

文件对象：

package com.dev.jsontest.adapter; 

public class fileObject { 

    private String fileName; 
    private String size; 
    private String infoToken; 
    private String deleteToken; 
    private String sha1; 

    public String getFileName() { 
     return fileName; 
    } 

    public void setFileName(String fileName) { 
     this.fileName = fileName; 
    } 

    public String getSize() { 
     return size; 
    } 

    public void setSize(String size) { 
     this.size = size; 
    } 

    public String getInfoToken() { 
     return infoToken; 
    } 

    public void setInfoToken(String infoToken) { 
     this.infoToken = infoToken; 
    } 

    public String getDeleteToken() { 
     return deleteToken; 
    } 

    public void setDeleteToken(String deleteToken) { 
     this.deleteToken = deleteToken; 
    } 

    public String getSha1() { 
     return sha1; 
    } 

    public void setSha1(String sha1) { 
     this.sha1 = sha1; 
    } 
}

来源

2013-07-10 Stian Instebo

这不详细回答你的问题，但在总体上可能会有所帮助，让框架做的所有东西解析:)

也许杰克逊是东西给你？（http://wiki.fasterxml.com/JacksonInFiveMinutes）

来源

2013-07-10 10:56:32 a11n

为什么不改名fileid到file并在该数组中使fileid成为一个字段？（如fileid: <fileid>）

还是不容更改传入的JSON字符串？

来源

2013-07-10 10:35:15

嗨，我不能更改来电JSON，它的API我问过他们，但他们不会... –

我认为你需要“拜访”你的JSON的所有键（从第一级）。尝试是这样的：

String jsonString = "{ \"error\": \"\", \"<fileId>\": { \"infoToken\": \"<string>\", \"deleteToken\": \"<string>\", \"size\": \"<int>\", \"sha1\": \"<string>\", \"filename\": \"<string>\" } }"; 
    try { 
     JSONObject json = new JSONObject(jsonString); 
     Iterator<String> it = json.keys(); 
     while(it.hasNext()){ 
      String key = it.next(); 

      if(!"error".equals(key)){ 
       String fileId = key; 
       JSONObject fileIdJsonObj = json.getJSONObject(fileId); 
      } 
     } 
    } catch (JSONException e) { 
     e.printStackTrace(); 
    }

来源

2013-07-10 12:55:42

循环，并创建一个阵列从JSON对象

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