Question

我想将一个mp3文件上传到Web服务器并获得应该是字符串的响应但是我得到415错误，HTTP响应是：无法处理消息因为内容类型'multipart / form-data; boundary = * '不是预期的类型'application / soap + xml; charset = utf-8'：415，这是我的代码，为什么服务器拒绝这种格式？

public static int upLoad2Server(String sourceFileUri) {
    String upLoadServerUri = "http://address:port/example/mex";
    // String [] string = sourceFileUri;
    String fileName = sourceFileUri;

    int serverResponseCode = 0;
    HttpURLConnection conn = null;
    DataOutputStream dos = null;
    DataInputStream inStream = null;
    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary = "*****";
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = 1 * 1024 * 1024;
    String responseFromServer = "";

    File sourceFile = new File(sourceFileUri);
    if (!sourceFile.isFile()) {
        Log.i("Huzza", "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());

        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
        Log.i("Huzza", "Initial .available : " + bytesAvailable);

        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 necessary after file data...
        dos.writeBytes(lineEnd);
        dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

        // Responses from the server (code and message)
        serverResponseCode = conn.getResponseCode();
        String serverResponseMessage = conn.getResponseMessage();

        Log.i("Upload file to server", "HTTP Response is : "
                + serverResponseMessage + ": " + serverResponseCode);
        // close streams
        Log.i("Upload file to server", fileName + " File is written");
        fileInputStream.close();
        dos.flush();
        dos.close();
    } catch (MalformedURLException ex) {
        ex.printStackTrace();
        Log.i("Upload file to server", "error: " + ex.getMessage(), ex);
    } catch (Exception e) {
        e.printStackTrace();
    }
    // this block will give the response of upload link
    try {
        BufferedReader rd = new BufferedReader(new InputStreamReader(
                conn.getInputStream()));
        String line;
        while ((line = rd.readLine()) != null) {
            Log.i("Huzza", "RES Message: " + line);
        }
        rd.close();
    } catch (IOException ioex) {
        Log.i("Huzza", "error: " + ioex.getMessage(), ioex);
    }
    return serverResponseCode; // like 200 (Ok)

} // end upLoad2Server

Answer 1

您的代码包含以下内容：

conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);

错误就是期待Content-Type成为这样：

application/soap+xml; charset=utf-8

我建议您重新检查为什么要将内容类型设置为服务器接受的其他内容。

415使用android上传文件时出错

1 个答案: