Initiate a request to servlet or Webservice in java

HttpClient initiates a request to servlet or Webservice

1. Send the request servlet, similar to ajax asynchronous call
Import java.net. HttpURLConnection;
Public void do (){
String url = "http: // localhost: 8081/servlet. do ";
Java.net. URL initStaticPageUrl = new java.net. URL (url );
Java.net. HttpURLConnection httpConnection = (java.net. HttpURLConnection) initStaticPageUrl. openConnection ();
HttpConnection. getResponseCode ();
}

2. Send xml files to servlet or Webservice in java
Import java. io. BufferedInputStream;

Import java. io. BufferedReader;

Import java. io. FileReader;

Import java. io. OutputStream;

Import java.net. HttpURLConnection;
Public void send (){
Try {
String xmlpath = Main. homepath + "/oneword. xml"; // path for saving the xml file
// Read the xml file

BufferedReader fin = new BufferedReader (new FileReader (xmlpath ));

StringBuffer stringbuffer = new StringBuffer ();

Int k = 0;

While (k! =-1)

{

K = fin. read ();

If (k! =-1)

Stringbuffer. append (char) k );

}

Fin. close ();
// Send the oneword. xml file

String xml = stringbuffer. toString ();

String url2 = "http://www.bkjia.com/word.html ";

Java.net. URL pageUrl = new java.net. URL (url2 );

HttpURLConnection connection = (HttpURLConnection) pageUrl. openConnection ();

Connection. setRequestMethod ("POST ");

Connection. setDoInput (true );

Connection. setDoOutput (true );

Connection. setRequestProperty ("Content-Type", "text/xml ");

Byte [] contentbyte = xml. getBytes ();

Connection. setRequestProperty ("Content-Length", "" + contentbyte. length );

Connection. setRequestProperty ("Cache-Control", "no-cache ");

Connection. setRequestProperty ("Pragma", "no-cache ");

Connection. setRequestProperty ("Expires", "-1 ");

OutputStream out = connection. getOutputStream ();

Out. write (contentbyte );

/**

OutputStreamWriter wout = new OutputStreamWriter (out, "UTF-8 ");

Wout. write ();

Wout. flush ();

**/

Out. flush ();

Out. close ();

BufferedInputStream bis = new BufferedInputStream (connection. getInputStream ());

Bis. close ();

Stringbuffer = null;

} Catch (Exception e)

{

E. printStackTrace ();

}
}

Author: feixiangdexin123087