Question

我正在尝试将图像从我的设备文件系统上传到服务器。当我使用 WIFI 连接时上传工作正常，但在 GPRS 时失败。我的代码如下：

String request=null;
byte[] attachmentData;
//read the image from the file system
attachmentData=bytesReadfromthefilesystem; 
//I use Apache's Base64 encoding to convert the byte array to string    
 request=Base64.encode(data);

  URL url = new URL(
        "http://mydomain.com:9090//abc/http?ID=12345");
        HttpURLConnection  httpURLConnection = (HttpURLConnection) url
            .openConnection();
    httpURLConnection.setRequestProperty("Content-Type",
            "text/plain");
    httpURLConnection.setRequestMethod("POST");
    httpURLConnection.setDoOutput(true);
    httpURLConnection.setChunkedStreamingMode(0);
    httpURLConnection.connect();
    OutputStream outStream outStream =httpURLConnection.getOutputStream();
    if (outStream != null) {
            if (request.getData().length() > 0) {
                outStream.write(request.getBytes());
            }

            outStream.flush();
            outStream.close();
            outStream = null;      
      }

图像尺寸接近1MB。我正在尝试三星Galaxy Pop（Android 2.2.1）。我也没有得到任何错误。我错过了这里的东西吗？有人可以帮我这个吗？提前谢谢。

Answer 1

您是否在AndroidManifest文件上设置了权限？

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

Answer 2

尝试setConnectionTimeout()到300000（5分钟）或类似的东西。

使用HttpUrlConnection上传图像

2 个答案: