我试图发布一些数据到服务器，但没有得到预期的结果。我得到200 OK响应，但返回的html源有一个字符串说" 404页面未找到"
我想我发送的数据集出错了。也许我错过了一些东西，因为我以前从未使用过多格式数据。
这是通过
发送的多格式数据(我已经使用篡改数据来检查通过 发送的内容) POSTDATA =-----------------------------124853047628807
Content-Disposition: form-data; name="mgnlModelExecutionUUID"
4ee01e05-dc16-4535-a222-693b98ec9b69
-----------------------------124853047628807
Content-Disposition: form-data; name="field"
-----------------------------124853047628807
Content-Disposition: form-data; name="name"
test
-----------------------------124853047628807
Content-Disposition: form-data; name="surname"
test
-----------------------------124853047628807
Content-Disposition: form-data; name="age"
test
-----------------------------124853047628807--
为了发送这些数据，我所做的是像下面这样创建一个MultipartEntityBuilder:
StringBody name = new StringBody("test", ContentType.MULTIPART_FORM_DATA);
StringBody surname = new StringBody("test", ContentType.MULTIPART_FORM_DATA);
StringBody age = new StringBody("test", ContentType.MULTIPART_FORM_DATA);
StringBody field = new StringBody("", ContentType.MULTIPART_FORM_DATA);
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
builder.addPart("name", name);
builder.addPart("surname", surname);
builder.addPart("age", age);
builder.addPart("field",field);
return builder;
最重要的是，我发送的头如下:
post.addHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0");
post.addHeader("Accept", "text/html,application/xhtml xml,application/xml;q=0.9,*/*;q=0.8");
我尝试设置multiform头，但它不起作用
post.addHeader("Content-type", "multipart/form-data");
有什么我可能错过的建议吗?谢谢你
我知道我在使用我的代码时遇到了问题，我为了发布一些文本和一些二进制文件而编写的代码最终为我自己编写了整个应用程序/multipartform。
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundry);
conn.setRequestProperty("Authorization", "----------------------------");
DataOutputStream out = new DataOutputStream(conn.getOutputStream());
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="user_id""+lineend+lineend);
out.writeBytes("1"+lineend);
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="preview_id""+lineend+lineend);
out.writeBytes("1"+lineend);
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="categories_id""+lineend+lineend);
out.writeBytes("2"+lineend);
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="title""+lineend+lineend);
out.writeBytes("Mama"+lineend);
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="tags""+lineend+lineend);
out.writeBytes("mama"+lineend);
out.flush();
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="video"; filename=""+file.getName()+"""+lineend);
out.writeBytes(lineend);
Log.d("UPLOAD", "Titlul video-ului ="+file.getName());
//decoding of bytes from video
FileInputStream file_stream = new FileInputStream(file);
bytesAvailable =file_stream.available();
bufferSize = Math.min(bytesAvailable,maxBufferSize);
buffer = new byte[bufferSize];
Log.d("UPLOAD", "Bytes Read Video =" +bytesRead);
bytesRead = file_stream.read(buffer);
//writting to outputstream
while (bytesRead >0){
out.write(buffer, 0, bytesRead);
bytesRead=file_stream.read(buffer);
}
Log.d("UPLOAD", "Done Loading first buffer");
file_stream.close();
out.writeBytes(twoHiphens+boundry+lineend);
out.writeBytes("Content-Disposition: form-data; name="thumb"; filename=""+image.getName()+"""+lineend);
out.writeBytes(lineend);
Log.d("UPLOAD", "Titlul preview-ului ="+image.getName());
//decodint image bytes
FileInputStream image_stream = new FileInputStream(image);
int bytesRead2;
int bytesAvailable2, bufferSize2 ;
bytesAvailable2 = image_stream.available();
bufferSize2 = Math.min(bytesAvailable2, maxBufferSize);
byte []buffer2 = new byte[bufferSize2];
//writing to outputstream
bytesRead2 = image_stream.read(buffer2);
while(bytesRead2>0){
out.write(buffer2, 0, bytesRead2); // bytesAvailable2 = image_stream.available();
bytesRead2 = image_stream.read(buffer2);
}
image_stream.close();
Log.d("UPLOAD", "Done loading the second buffer");
out.writeBytes(twoHiphens+boundry+twoHiphens+lineend);
out.writeBytes(lineend);
out.flush();
out.close();
Log.d("UPLOAD","Response Code = "+conn.getResponseCode());
String responseMessage = conn.getResponseMessage();
Log.d("UPLOAD", "Response Message = "+responseMessage);
InputStream in;
if(conn.getResponseCode() >= 400){
in = conn.getErrorStream();
}else{
in = conn.getInputStream();
}
BufferedReader reader = new BufferedReader(new InputStreamReader(in,"UTF-8"));
StringBuilder response = new StringBuilder();
char []bytes = new char[512];
int read ;
while((read = reader.read(bytes))!=-1){
response.append(bytes, 0, read);
}
Log.d("UPLOAD", "Response " +response);
conn.disconnect();
可以省略引用二进制数据的代码。希望对大家有所帮助
也许每个StringBody的ContentType不能是ContentType。MULTIPART_FORM_DATA。也许应该是"text/plain "
试试这个
File file = new File(path);
File image = new File("/storage/emulated/0/DCIM/100MEDIA/a_thumbnail.jpg");
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(urls[0]);
HttpResponse response = null ;
post.setHeader("Authorization","----------------------------");
MultipartEntity ent = new MultipartEntity();
try {
ent.addPart("user_id",new StringBody("1"));
ent.addPart("categories_id",new StringBody("3"));
ent.addPart("tags",new StringBody("mama"));
ent.addPart("title",new StringBody("mama"));
ent.addPart("preview_id",new StringBody("2"));
ent.addPart("thumb", new FileBody(image));
ent.addPart("video", new FileBody(file));
post.setEntity(ent);
response = client.execute(post);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
answer= answer+bufferedReader.readLine();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return answer;
}