android平台上的文件下载,文件和文件的操作(8)

             in=con.getInputStream(); 
             
        reader=new BufferedReader(new InputStreamReader(in)); 
         
        String line; 
        while((line=reader.readLine())!=null){ 
            result.append(line); 
        }    
             
        } catch (MalformedURLException e) { 
            e.printStackTrace(); 
        }catch (IOException e) { 
            e.printStackTrace(); 
        }finally{ 
            try { 
                if(reader!=null) 
                    reader.close(); 
                if(in!=null) 
                    in.close(); 
                 
            } catch (IOException e) { 
                // TODO Auto-generated catch block 
                e.printStackTrace(); 
            } 
             
        } 
        return result.toString(); 
    } 
    /*将文件写入SD卡
     * @return -1 写入失败 0存在 1写入成功
     * @param urlStr 本机测试是不是ip不是localhost和127.0.0.1,这是指android的IP,电脑是10.0.2.2
     * */ 
     
     
    public int downloadFile(String urlStr,String toPath,String fileName){