A great god, genuflect is begged HttpUrlConnection uploading large files error, getResponseCode has-CodePudding

Project to upload the file to the server, set up a file nagix maximum 10 m, if the mobile client upload file for more than 10 m, will upload failure, I am using the android native HttpUrlConnection network request, I want to upload more than 10 m file, will be able to get the response code and error message, but in fact, when I get the response code, the code is an exception is thrown, exception for the following three (with modified parameters, the exception is one of the three)

 
The error asyncExecute: Write error: SSL=0 x7ec7b80008: I/O error during the system call, the Connection reset by peer 

Javax.net.ssl.SSLException: Write error: SSL=0 x7e67fae408: I/O error during the system call, Broken pipe 

Java.net.SocketException: Connection reset

Through fiddler caught, then, I get the exception is as follows:

 
 

 
 413 Request Entity Too Large 
 

<body> 
 
 
 
 Nginx/1.17.5 & lt;/center>

Then ask about the background, for the sake of load balancing, specially on the nagix set the limit of 10 m,
Probably the reason is, upload more than 10 m file, nginx check file ever exceeds the maximum limit Settings, connection is disconnected, so when getResponseCode or getInputStream directly thrown exception,
In the face of such situation, how can I get a response code?
HttpUrlConnection setup code is as follows:

 
URL originUrl=new URL (URL); 
String protocol=originUrl. GetProtocol (); 
If (TextUtils. Equals (protocol, "HTTP")) {
Port=80; 
} 
MURL=new URL (protocol, originUrl getHost (), port, originUrl. GetFile ()); 
MConn=(HttpURLConnection mURL). The openConnection (); 

If (mConn instanceof HttpsURLConnection) {
SelfSignedCertificate=true; 
SSLCustomSocketFactory factory=new SSLCustomSocketFactory (selfSignedCertificate? SSLCustomSocketFactory. GetSocketFactory () 
: (SSLSocketFactory) SSLSocketFactory getDefault ()); 
(HttpsURLConnection mConn). SetSSLSocketFactory (factory); 
(HttpsURLConnection mConn). SetHostnameVerifier (new HostnameVerifier () {
@ Override 
Public Boolean verify (String hostname, SSLSession session) {
return true; 
} 
}); 
} 
MConn. SetRequestMethod (" POST "); 
MConn. SetDoOutput (true); 
MConn. SetDoInput (true); 
MConn. SetUseCaches (false); 
MConn. SetConnectTimeout (30000); 
MConn. SetReadTimeout (30000); 
MConn. SetRequestProperty (" the user-agent ", "XXXX");//XXXX doesn't involved in the project information display 
MConn. SetRequestProperty (" Connection ", "Keep Alive -"); 
MConn. SetRequestProperty (" Charset ", "utf-8"); 
MConn. SetRequestProperty (" the content-type ", "multipart/form - data; A boundary="+ boundary); 
MConn. SetRequestProperty (" Expect ", "100 - the Continue"); 
MConn. SetChunkedStreamingMode (0); 
//add the incoming request header 
For (Map. Entry Item: headers. EntrySet ()) {
MConn. SetRequestProperty (item. GetKey (), the item. The getValue ()); 
} 
MConn. The connect (); 
//add files 
DataOutputStream out=new DataOutputStream (connect getOutputStream ()); 
//the incoming parameter 
Out. Write (params. GetBytes ()); 
Out. The flush (); 
StringBuffer strBuf=new StringBuffer (); 
For (String key: paramsMap keySet ()) {
StrBuf. Append (TWO_HYPHENS); 
StrBuf. Append (BOUNDARY); 
StrBuf. Append (LINE_END); 
StrBuf. Append (" the Content - Disposition: the form - data; Name=\ \ "" + key +" \ ""); 
StrBuf. Append (LINE_END); 

StrBuf. Append (" content-type: "+" text/plain "); 
StrBuf. Append (LINE_END); 
StrBuf. Append (" the Content - Length: "+ paramsMap. Get (key). The Length ()); 
StrBuf. Append (LINE_END); 
StrBuf. Append (LINE_END); 
StrBuf. Append (paramsMap. Get (key)); 
StrBuf. Append (LINE_END); 
} 
String paramsString=strBuf. ToString (); 
Out. Write (paramsString getBytes ()); 
Out. The flush (); 
The String fileName=UriUtils. GetFileNameByUri (mContext fileUri); 
String mimeType=UriUtils. GetMimeType (mContext fileUri); 
Long fileLength=UriUtils. GetFileLength (mContext fileUri); 
if(! TextUtils. IsEmpty (filename)) {
FileName=fileName; 
} 
//add file header 
Out. Write (getFileHeaderParamsString (fileKey, fileName, mimeType, fileLength). GetBytes ()); 
//add files body 
String filePath=UriUtils. GetFilePath (fileUri); 
InputStream in=null; 
Try {
if (! TextUtils. IsEmpty (filePath) & amp; & The new File (filePath.) the exists ()) {
In=new FileInputStream (new File (filePath)); 
} else {
In=mContext. GetContentResolver (). OpenInputStream (fileUri); 
} 
Byte [] TMP=new byte [2048]. 
Int l; 
Long sum=0; 
While ((l=in. Read (TMP))!=1) {
Out. Write (TMP, 0, l); 
The sum +=l; 
If (callback!=null) {
The callback. OnProgress (fileLength, sum); 
} 
} 
} the catch (IOException e) {
e.printStackTrace(); 
} the finally {
If (in!=null) {
In the close (); 
} 
} 
//add the end-of-file 
Out. Write (getFileEndString (.) getBytes ()); 
Out. The flush (); 
HttpResponse response=new HttpResponse (); 
//uploading large files here it throws an exception, but the exception, not want then, there is no corresponding code 
The response. Code=mConn. GetResponseCode (); 
If (response. Code==HttpURLConnection. HTTP_OK) {
The response. ContentLength=mConn. GetContentLength (); 
The response. The inputStream=mConn. GetInputStream (); 
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