android upload file to server httpclient

One: the principle of realization Recently in the Android client application development, involving the image uploaded to the backend server, I chose to do Spring3 MVC HTTP API as a background upload interface, Android Client I choose to use HttpURLConnection to submit file

Http://www.tuicool.com/articles/Y7reYb 1. OverviewIn this tutorial we will describe how to use HttpClient 4 for a multi-file upload operation .We will use http://echo.200please.com as the test server because it is public-facing and accepts most types of content.If you want to learn more and learn about oth

Android http File Upload-local + server one-stop Analysis Local: Let's take a look at the project structure. MainActivity. java Package com. huxq. uploadexample; import java. io. file; import android. annotation. suppressLint; i

(); InputStream in=Newfileinputstream (file); Multipartentity reqentity=Newmultipartentity (); Inputstreambody Inputstreambody=Newinputstreambody (in,name); Stringbody Filenam=Newstringbody (name); Reqentity.addpart ("UploadFile", Inputstreambody); Reqentity.addpart ("Uploadfilename", Filenam); Httppost.setentity (reqentity); HttpResponse Response=Httpclient.execute (HttpPost); intStatusCode =response.getstatusline (). Getstatuscode (); if

; for(File file:files) {//filebody filebody = new Filebody (file);//convert files to stream objects Filebody//builder.addpart ("File" +count, filebody);Builder.addbinarybody ("file"+count, file); Count++;} Builder.addtextbody ("Method",params.Get("Method"));//Set Request Par

In the project we sometimes need to use other third-party APIs, and some APIs require us to upload files, search, the results are recorded here!Meaning enctype= "multipart/form-data" description:Upload files via HTTP protocol overview of RFC1867 protocol, JSP application example, the client sends content constructs1, overview in the initial HTTP protocol, there is no upload

Recent work needs to be crawled from the network to upload a lot of pictures on the server, file upload with the Apache httpclient 4.3, recorded for later lookup! The code is as follows: /** * Example How to use Multipart/form encoded POST request. */public class Clientmult

()) {multipartentity.addbinarybody (filekey, file, Contenttype.multipart_form_data, File.getname ()); }//json String Attachingfor (map.entryMultipartentity.addpart (Entry.getkey (), New Stringbody (Entry.getvalue ())); }httppost.setentity (Multipartentity.build ());//****** omit ******}Compile files (' Libs/android_httpcore_4.3.2.jar ')//https://pan.baidu.com/s/1i5mEO53 package has been uploaded to the Baidu cloud can be downloaded directly

When uploading a file with httpclient upload, the code is as follows: HttpPost HttpPost = new HttpPost (uploadimg); Httppost.addheader ("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q =0.8 "); Httppost.addheader ("accept-encoding", "gzip, deflate"); Httppost.addheader ("Accept-language", "zh

When a business scenario is encountered, the front-end uploaded files need to be forwarded through the Java service to the file service. During the encounter of the original httpclient how to use the problem, how to multipartfile how to re-assemble the HTTP request sent out the problem, file Chinese name garbled problem. Finally all solved, first on the code, the

",NewFile (FILEURL)); } Catch(Exception e) {e.printstacktrace (); } } /*** Post: (upload). * * @authorJoe date:2017 September 11 afternoon 5:37:46 *@paramServerURL *@paramFileparamname *@paramfile *@return * @throwsclientprotocolexception *@throwsIOException*/ Public Staticstring Post (String ServerURL, string fileparamname, file file)throwscli

) throws FileNotFoundException {super (filename, file); } protected voidSenddispositionheader (OutputStream out) throws IOException {Super.senddispositionheader ( out); String filename=GetSource (). GetFileName (); if(FileName! =NULL) { out. Write (Encodingutil.getasciibytes (file_name)); out. Write (quote_bytes); out. Write (encodingutil.getbytes (filename,"Utf-8")); out. Write (quote_bytes); } } }

StringPostfiledata (StringUrlbyte[] data) { Try{HttpURLConnection conn= (httpurlconnection)NewURL (URL).OpenConnection (); Conn. setconnecttimeout (20 * 1000); Conn. Setrequestmethod ("POST"); Conn. Setdooutput (true);//allow external output dataConn.setrequestproperty ("Content-type", "Application/octet-stream"); Conn. Setrequestproperty ("Content-length",String. valueOf (data.length)); OutputStream OutStream= Conn.Getoutputstream (); OutStream.write (data); StringResponse= ""; if(Conn.ge