Java Analog HTTP request submission pictures and data

1, forged request

Package com.sxb.web.v2.wh.unittest;

Import Java.io.BufferedReader;

Import Java.io.DataInputStream;

Import Java.io.DataOutputStream;

Import Java.io.File;

Import Java.io.FileInputStream;

Import java.io.FileNotFoundException;

Import Java.io.InputStream;

Import Java.io.InputStreamReader;

Import Java.io.OutputStream;

Import java.net.HttpURLConnection;

Import Java.net.URL;

Import Java.util.HashMap;

Import Java.util.Iterator;

Import Java.util.Map;

Import Net.sf.jmimemagic.Magic;

Import Net.sf.jmimemagic.MagicMatch;

public class Httppostuploadutil {

/**

* @param args

* @throws FileNotFoundException

*/

public static void Main (string[] args) throws FileNotFoundException {

String filepath = "C:\\users\\administrator\\desktop\\xx.png";

String urlstr = "Http://192.168.0.98:8086/app/wh/test/image.json";

map<string, string> textmap = new hashmap<string, string> ();

Textmap.put ("Name1", "testname1");

map<string, inputstream> filemap = new hashmap<string, inputstream> ();

Filemap.put ("UserFile", New FileInputStream (New File (filepath)));

String ret = httppostuploadutil.formupload (Urlstr, Textmap, Filemap);

SYSTEM.OUT.PRINTLN (ret);

}

/**

* Upload Images

* @param urlstr

* @param textmap

* @param filemap

* @return

*/

public static string Formupload (String urlstr, map<string, string> Textmap, map<string, inputstream> Filemap ) {

String res = "";

HttpURLConnection conn = null;

String boundary = "---------------------------123821742118716"; Boundary is the delimiter for the request header and the content of the uploaded file

try {

URL url = new URL (urlstr);

conn = (httpurlconnection) url.openconnection ();

Conn.setconnecttimeout (5000);

Conn.setreadtimeout (30000);

Conn.setdooutput (TRUE);

Conn.setdoinput (TRUE);

Conn.setusecaches (FALSE);

Conn.setrequestmethod ("POST");

Conn.setrequestproperty ("Connection", "keep-alive");

Conn.setrequestproperty ("User-agent", "mozilla/5.0" (Windows; U Windows NT 6.1; ZH-CN; rv:1.9.2.6) ");

Conn.setrequestproperty ("Content-type", "multipart/form-data; boundary= "+ boundary);

OutputStream out = new DataOutputStream (Conn.getoutputstream ());

Text

if (textmap! = null) {

StringBuffer strbuf = new StringBuffer ();

Iterator<map.entry<string, string>> iter = Textmap.entryset (). Iterator ();

while (Iter.hasnext ()) {

map.entry<string, string> Entry = Iter.next ();

String inputname = (string) entry.getkey ();

String inputvalue = (string) entry.getvalue ();

if (Inputvalue = = null) {

Continue

}

Strbuf.append ("\ r \ n"). Append ("--"). Append (Boundary). Append ("\ r \ n");

Strbuf.append ("Content-disposition:form-data; Name=\ "" + InputName + "\" \r\n\r\n ");

Strbuf.append (Inputvalue);

}

Out.write (Strbuf.tostring (). GetBytes ());

}

File

if (filemap! = null) {

Iterator<map.entry<string, inputstream>> iter = Filemap.entryset (). Iterator ();

while (Iter.hasnext ()) {

map.entry<string, inputstream> Entry = Iter.next ();

String inputname = (string) entry.getkey ();

FileInputStream Inputvalue = (fileinputstream) entry.getvalue ();

if (Inputvalue = = null) {

Continue

}

String filename = system.currenttimemillis () + ". png";

String ContentType = "Image/png";

StringBuffer strbuf = new StringBuffer ();

Strbuf.append ("\ r \ n"). Append ("--"). Append (Boundary). Append ("\ r \ n");

Strbuf.append ("Content-disposition:form-data; Name=\ "" + InputName + "\"; Filename=\ "+ filename +" \ "\ \ \ \ \ \ \");

Strbuf.append ("Content-type:" + contentType + "\r\n\r\n");

Out.write (Strbuf.tostring (). GetBytes ());

DataInputStream in = new DataInputStream (inputvalue);

int bytes = 0;

byte[] Bufferout = new byte[1024];

while ((bytes = In.read (bufferout))! =-1) {

Out.write (bufferout, 0, bytes);

}

In.close ();

}

}

Byte[] Enddata = ("\r\n--" + boundary + "--\r\n"). GetBytes ();

Out.write (Enddata);

Out.flush ();

Out.close ();

Read return Data

StringBuffer strbuf = new StringBuffer ();

BufferedReader reader = new BufferedReader (New InputStreamReader (Conn.getinputstream ()));

String line = null;

while (line = Reader.readline ()) = null) {

Strbuf.append (line) append ("\ n");

}

res = strbuf.tostring ();

Reader.close ();

reader = null;

} catch (Exception e) {

SYSTEM.OUT.PRINTLN ("Error sending post request.") "+ urlstr);

E.printstacktrace ();

} finally {

IF (conn! = null) {

Conn.disconnect ();

conn = null;

}

}

return res;

}

}

2, receiving the data of the forged request

@Controller

@RequestMapping ("/wh/test")

public class TestController {

/**

*

*

* ***/

@RequestMapping ("/image")

public void image (HttpServletRequest request,httpservletresponse response, @RequestParam (value= "UserFile", Required=false) commonsmultipartfile[] images) throws ioexception{

map<string, object> retmp = null;

try {

System.out.println ("--images:" +images[0].getinputstream ());

} catch (Exception e) {

retmp = Retutil.getretvalue (False, "{}", "Server Exception", 500);

e.printstacktrace ();

}finally{

Response.setcontenttype ("Application/json; Charset=utf-8 ");

response.getwriter (). Print (New Gson (). ToJson ("--xx-:" +images[0].getinputstream (). toString ()));

}

}

}

Java Analog HTTP request submission pictures and data