初学者android开发者在这里。我正在尝试将.gpx文件发布到我的网络数据库。但是，我收到http响应错误415.我知道415表示不正确的内容类型，我尝试使用的API有此代码..感谢任何提示！
// Test that request has correct content type
if (!Request.Content.IsMimeMultipartContent())
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
这是我的Http Request类
/**
* This constructor initializes a new HTTP POST request with content type
* is set to multipart/form-data
* @param requestURL
* @param charset
* @throws IOException
*/
public MultipartUtility(String requestURL, String charset)
throws IOException {
this.charset = charset;
// creates a unique boundary based on time stamp
boundary = "===" + System.currentTimeMillis() + "===";
URL url = new URL(requestURL);
httpConn = (HttpURLConnection) url.openConnection();
httpConn.setUseCaches(false);
httpConn.setDoOutput(true); // indicates POST method
httpConn.setDoInput(true);
httpConn.setRequestMethod("POST");
httpConn.setRequestProperty("Connection", "Keep-Alive");
httpConn.setRequestProperty("Content-Type", // content type multipart ( FILE)
"multipart/form-data; boundary=" + boundary);
httpConn.setRequestProperty("Authorization", UserInfo.User.getToken());
outputStream = httpConn.getOutputStream();
writer = new PrintWriter(new OutputStreamWriter(outputStream, charset),
true);
}
/**
* Adds a form field to the request
* @param name field name
* @param value field value
*/
public void addFormField(String name, String value) {
writer.append("--" + boundary).append(LINE_FEED);
writer.append("Content-Disposition: form-data; name=\"" + name + "\"")
.append(LINE_FEED);
//writer.append("Content-Type: text/plain; charset=" + charset).append(LINE_FEED);
writer.append(LINE_FEED);
writer.append(value).append(LINE_FEED);
writer.flush();
}
/**
* Adds a upload file section to the request
* @param fieldName name attribute in <input type="file" name="..." />
* @param uploadFile a File to be uploaded
* @throws IOException
*/
public void addFilePart(String fieldName, File uploadFile)
throws IOException {
String fileName = uploadFile.getName();
writer.append("--" + boundary).append(LINE_FEED);
writer.append(
"Content-Disposition: form-data; name=\"" + fieldName
+ "\"; filename=\"" + fileName + "\"");
//Log.i("fileName",fileName);
writer.append("Content-Type: " + "multipart/form-data; boundary=" + boundary);
//.append("Content-Transfer-Encoding: binary").append(LINE_FEED);
writer.append(LINE_FEED);
writer.flush();
FileInputStream inputStream = new FileInputStream(uploadFile);
byte[] buffer = new byte[4096];
int bytesRead = -1;
while ((bytesRead = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
}
outputStream.flush();
inputStream.close();
writer.append(LINE_FEED);
writer.flush();
}
/**
* Adds a header field to the request.
* @param name - name of the header field
* @param value - value of the header field
*/
public void addHeaderField(String name, String value) {
writer.append(name + ": " + value).append(LINE_FEED);
writer.flush();
//Log.i("header",name + ": " + value);
}
/**
* Completes the request and receives response from the server.
* @return a list of Strings as response in case the server returned
* status OK, otherwise an exception is thrown.
* @throws IOException
*/
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();
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);
}
return response;
}
这是我的活动
String requestURL = "url";
try {
MultipartUtility multipart = new MultipartUtility(requestURL, charset);
multipart.addFilePart("filename", File);
List<String> response = multipart.finish();
System.out.println("SERVER REPLIED:");
for (String line : response) {
System.out.println(line);
}
} catch (IOException ex) {
System.err.println(ex);
}
}
这是我对httpbin
的回应/ * I / System.out：SERVER REPLIED：
I / System.out：{
I / System.out：“args”：{}，
I / System.out：“data”：“”，
I / System.out：“files”：{
I / System.out：“FileName”：“http：//www.topografix.com/GPX/1/1 \”version = \“1.0 \”＆gt; \ n \ n \ r \ n“< / p>
I / System.out：}，
I / System.out：“form”：{}，
I / System.out：“headers”：{
I / System.out：“Accept-Encoding”：“gzip”，
I / System.out：“授权”：“持票人”，
I / System.out：“Content-Length”：“322”，
I / System.out：“Content-Type”：“multipart / form-data; 边界==== 1488396069658 ===“，
I / System.out：“主持人”：“httpbin.org”，
I / System.out：“User-Agent”：“Dalvik / 2.1.0（Linux; U; Android 7.0;为x86 Build / NYC构建的Android SDK）”
I / System.out：}，
I / System.out：“json”：null，
I / System.out：“origin”：“50.174.210.222”，
I / System.out：“url”：“http://httpbin.org/post”
I / System.out：} * /
如果任何人遇到这种麻烦......我使用了改装2来成功上传我的文件。
//Retrofit2 method
public void uploadFile() {
OkHttpClient.Builder okHttpClientBuilder = new OkHttpClient.Builder();
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
okHttpClientBuilder.addInterceptor(interceptor);
okHttpClientBuilder.addInterceptor(new Interceptor() {
@Override
public okhttp3.Response intercept(Chain chain) throws IOException {
okhttp3.Request original = chain.request();
okhttp3.Request.Builder requestBuilder = original.newBuilder()
.header("Authorization", UserInfo.User.getToken());
okhttp3.Request request = requestBuilder.build();
return chain.proceed(request);
}
});
MediaType MEDIA_TYPE_XML = MediaType.parse("application/xml");
RequestBody filePart = RequestBody.create(MEDIA_TYPE_XML, gpx);
MultipartBody.Part file = MultipartBody.Part.createFormData("Track", gpx.getName(), filePart);
Retrofit.Builder builder = new Retrofit.Builder()
.baseUrl("URL")
.addConverterFactory(GsonConverterFactory.create())
.client(okHttpClientBuilder.build());
Retrofit retrofit = builder.build();
UserClient client = retrofit.create(UserClient.class);
Call<ResponseBody> call = client.uploadFile(file);
call.enqueue(new Callback<ResponseBody>() {
@Override
public void onResponse(Call<ResponseBody> call, retrofit2.Response<ResponseBody> response) {
Log.i("works", call.toString());
}
@Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
Log.i("Fail", "gg");
}
});
}
我的界面
公共接口UserClient {
@Multipart
@POST("Gpx")
Call<ResponseBody> uploadFile(
@Part MultipartBody.Part File
);
}
答案 0 :(得分：0)
public static <C> C createService(Class<C> cClass) {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();
Retrofit retrofit = new Retrofit.Builder()
.client(client)
.baseUrl(UrlManager.Manager.BASE_URL)
.build();
return retrofit.create(cClass);
}
此代码创建工厂，然后记录所有中间件请求。此代码一旦被调用，每个与请求有关的内容都将自动登录到logcat中。您可以输入okHTTp进行过滤。
使用拦截器：包括compile 'com.squareup.okhttp3:logging-interceptor:3.3.1'