Question

我收到此错误代码。

E / camera_classes.callHttpPostToSendFiles：异常消息e java.io.IOException：服务器返回非正常状态：400消息：错误请求错误流：com.android.okhttp.internal.http.HttpTransport$FixedLengthInputStream@42353798at camera_classes.postMultipartEntity.finish（postMultipartEntity.java:161） at camera_classes.callHttpPostToSendFiles.postData（callHttpPostToSendFiles.java:193） at camera_classes.callHttpPostToSendFiles $ 1.doInBackground（callHttpPostToSendFiles.java:109） at camera_classes.callHttpPostToSendFiles $ 1.doInBackground（callHttpPostToSendFiles.java:105）在android.os.AsyncTask $ 2.call（AsyncTask.java:288）在java.util.concurrent.FutureTask.run（FutureTask.java:237）在android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:231） at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1112） at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:587）在java.lang.Thread.run（Thread.java:841）

错误发生在

public List<String> finish() throws IOException {
        List<String> response = new ArrayList<String>();

        writer.append(LINE_FEED).flush();
        writer.append("--" + boundary + "--").append(LINE_FEED);
        writer.close();

        // checks server's status code first
        int status = httpConn.getResponseCode();
        String server_message = httpConn.getResponseMessage();
        if (status == HttpURLConnection.HTTP_OK) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    httpConn.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                response.add(line);
            }
            reader.close();
            httpConn.disconnect();
        } else {
            throw new IOException("Server returned non-OK status: " + status + " message: " + server_message + " error stream : " + httpConn.getErrorStream());
        }

1）我有兴趣获取有关列出here的错误代码（400错误请求）的更多信息，因此我可以理解导致＆＃34; 400错误请求的原因＆＃34;错误。谁能帮忙。我尝试了所有可用的公开方法 - httpConn.getResponseMessage()，httpConn.getResponseCode()和httpConn.getErrorStream()。

2）com.android.okhttp.internal.http.HttpTransport$FixedLengthInputStream@42353798是什么意思？这是httpConn.getErrorStream()的输出。

Answer 1

我正在使用Google Cloud XML Api的上传方法，如下所示。关于你的第二个问题，也许它与使用来自HttpUrlConnection的方法setFixedLengthStreamingMode有关，就像我在我的函数中使用的那样，你必须把文件的长度上传到：

URL url = new URL("www.urltoupload.com");

HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

httpCon.setDoOutput(true);
httpCon.setRequestMethod("PUT");
httpCon.setRequestProperty("Content-Type", Utils.getMimeType(path));
httpCon.setRequestProperty("Connection", "Keep-Alive");
httpCon.setFixedLengthStreamingMode((int) dest.length());

final DataOutputStream out = new DataOutputStream(httpCon.getOutputStream());

float bytesTotal = fileBeingUploaded.length();

int bytesRead;
byte buf[] = new byte[8192];
BufferedInputStream bufInput = new BufferedInputStream(new FileInputStream(dest));

while ((bytesRead = bufInput.read(buf)) != -1) {
    out.write(buf, 0, bytesRead);
    out.flush();
}

out.close();

HTTP POST 400。错误的请求。 Google云端存储XML API调用上传文件

1 个答案: