android InputStream 轉 String

 public String convertStreamToString(InputStream is) {  
        /* 
         * To convert the InputStream to String we use the BufferedReader.readLine() 

         * method. We iterate until the BufferedReader return null which means 
         * there's no more data to read. Each line will appended to a StringBuilder 

         * and returned as String. 
         */ 
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));  
        StringBuilder sb = new StringBuilder();  
   
        String line = null;  
        try {  
            while ((line = reader.readLine()) != null) {  
                sb.append(line + "/n");  
            }  
        } catch (IOException e) {  
            e.printStackTrace();  
        } finally {  
            try {  
                is.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
   
        return sb.toString();  
    }