我正在尝试在服务器上传图片。当我点击上传按钮时，我得到响应代码200即可。但是，然后我检查IIS上用于检查上传图像的文件夹，它显示空文件夹。简单地说，没有上传的文件。我不知道自己哪里出错了。这是我的代码，
new Upload().execute();
class Upload extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
String upLoadServerUri = "http://192.168.77.120/CheckInn/Reservation.svc/Upload";
String fileName = "/storage/extSdCard/DCIM/Camera/images.jpeg";
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File("/storage/extSdCard/DCIM/Camera/images.jpeg");
if (!sourceFile.isFile()) {
Log.e("uploadFile", "Source File Does not exist");
// return 0;
}
try { // open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
conn = (HttpURLConnection) url.openConnection(); // Open a HTTP connection to the URL
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
dos = new DataOutputStream(conn.getOutputStream());
System.out.println("..........");
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available(); // create a buffer of maximum size
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseMessage();
System.out.println("....." + serverResponseCode);
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode);
if(!serverResponseMessage.isEmpty()){
runOnUiThread(new Runnable() {
public void run() {
tv.setText("File Upload Completed.");
Toast.makeText(MainActivity.this, "File Upload Complete.", Toast.LENGTH_SHORT).show();
}
});
}
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
Toast.makeText(MainActivity.this, "MalformedURLException", Toast.LENGTH_SHORT).show();
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (Exception e) {
dialog.dismiss();
e.printStackTrace();
Toast.makeText(MainActivity.this, "Exception : " + e.getMessage(), Toast.LENGTH_SHORT).show();
Log.e("Upload file to server Exception", "Exception : " + e.getMessage(), e);
}
dialog.dismiss();
return null;
}
}
网络服务代码：
public string Upload(Stream Uploading)
{
MultipartParser parser = new MultipartParser(Uploading);
string fullOutputPath = @"E:\Publish\CheckIn\Documents\" + parser.Filename;// + ".jpg";
if (parser.Success)
{
byte[] imgByte = parser.FileContents;
System.Drawing.Image img;
using (MemoryStream memStream = new MemoryStream(imgByte))
{
using (img = System.Drawing.Image.FromStream(memStream))
{
img.Save(fullOutputPath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
// Save the file
// SaveFile(parser.Filename, parser.ContentType, parser.FileContents);
}
return "File Save Successfully";
}
答案 0 :(得分：0)
尝试以下代码，它适用于我
public static String submitData()
{
String m_wsUrl = "http://192.168.77.120/CheckInn/Reservation.svc/Upload";
String m_filePath = "/storage/extSdCard/DCIM/Camera/images.jpeg";
String m_fileKey = "uploaded_file";
String m_serverResponse = null;
try
{
HttpURLConnection m_httpconnection = null;
String m_attachment_type;
OutputStream m_outputStream;
m_httpconnection = (HttpURLConnection) new URL(m_wsUrl).openConnection();
m_httpconnection.setConnectTimeout(5000);
m_httpconnection.setDoInput(true);
m_httpconnection.setDoOutput(true);
m_httpconnection.setRequestMethod("POST");
m_httpconnection.setRequestProperty("Connection", "Keep-Alive");
m_httpconnection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + BOUNDARY);
m_attachment_type = "application/octet-stream";
m_outputStream = m_httpconnection.getOutputStream();
StringBuffer m_buffer = new StringBuffer();
m_buffer.append("--" + BOUNDARY + "\r\n");
m_buffer.append("Content-Disposition: form-data; name=\"webdata\"" + "\r\n\r\n");
m_outputStream.write(m_buffer.toString().getBytes());
if (m_filePath != null)
{
String m_str = "--" + BOUNDARY + "\r\n" + "Content-Disposition: form-data; name=" + m_fileKey + "; filename=\"" + new File(m_filePath).getName() + "\"\r\n" + "Content-Type: " + m_attachment_type + "\r\n" + "\r\n";
m_outputStream.write(m_str.getBytes());
byte[] m_mediaNuffer = new byte[BUFFER_SIZE];
try
{
m_in = new BufferedInputStream(new FileInputStream(m_filePath));
while ((m_in.read(m_mediaNuffer, 0, BUFFER_SIZE)) > 0)
{
m_outputStream.write(m_mediaNuffer);
}
}
catch (Exception p_e)
{
}
finally
{ // always close input stream
try
{
m_in.close();
}
catch (IOException p_e)
{
}
}
m_outputStream.write("\r\n".getBytes());
m_outputStream.write(("--" + BOUNDARY + "\r\n").getBytes());
}
m_outputStream.flush();
m_outputStream.close();
if (m_httpconnection.getResponseCode() == HttpURLConnection.HTTP_OK)
{
try
{
String m_str;
StringBuffer m_buff = new StringBuffer();
BufferedReader m_in = new BufferedReader(new InputStreamReader(m_httpconnection.getInputStream()));
while ((m_str = m_in.readLine()) != null)
m_buff.append(m_str);
m_serverResponse = m_buff.toString();
return m_serverResponse;
}
catch (IOException p_te)
{
// UNABLE_TO_CONNECT_SERVER
}
finally
{
try
{
m_httpconnection.disconnect();
}
catch (Throwable p_e)
{
}
}
}
else
{
// UNABLE_TO_CONNECT_SERVER
}
}
catch (SocketTimeoutException te)
{
}
catch (IOException ie)
{
}
return m_serverResponse;
}