XML-RPC instance of Apache XML-RPC

Apache|xml

Author: Seek ruler Build Source: Http://www.sentom.netXML-RPC is a remote procedure call protocol that works on the Internet. Popular point, is the use of HTTP protocol interaction, the interaction of the carrier is an XML file. XML-RPC Specific specifications please refer to here.
Photo from XML-RPC official website

The XML-RPC specification defines six data types, and the following table is the corresponding table of the six data types and Java data types.

Xml-rpcjava<i4> or <int>int<boolean>boolean<string>java.lang.string<double>double <datetime.iso8601>java.util.date<struct>java.util.hashtable<array>java.util.vector<base64 >byte[]

XML-RPC specification of various platforms are implemented concretely, XML-RPC specification Java implementation has several kinds, here we chose Apache XML-RPC.
The XML-RPC server implementation first defines a simple business object MyHandler, and the remote client invokes the object's method, as follows:


Package Net.sentom.xmlrpc;public class MyHandler {public string SayHello (String str) {return "Hello," + str;}}

Then define a servlet named Myxmlrpcserver, which the remote client accesses through Http-post.



Package Net.sentom.xmlrpc;import Java.io.ioexception;import Java.io.outputstream;import Javax.servlet.servletexception;import Javax.servlet.http.httpservlet;import Javax.servlet.http.httpservletrequest;import Javax.servlet.http.httpservletresponse;import Org.apache.xmlrpc.xmlrpcserver;public class Myxmlrpcserver extends HttpServlet {public void DoPost (httpservletrequest Request, HttpServletResponse response) throws Servletexception, IOException {xmlrpcserver xmlrpc = new Xmlrpcserver (); Xmlrpc.addhandler ("MyHandler", New MyHandler ()); byte[] result = Xmlrpc.execute (Request.getinputstream ()); Response.setcontenttype ("Text/xml"); Response.setcontentlength (result.length); OutputStream out = Response.getoutputstream (); Out.write (result); Out.flush ();}}

Special notes are required:



Xmlrpc.addhandler ("MyHandler", New MyHandler ());

For ease of understanding, this can be seen as common:



MyHandler MyHandler = new MyHandler ();

Finally, add the following lines to the Web.xml file:



<servlet> <servlet-name>MyXmlRpcServer</servlet-name> <servlet-class> Net.sentom.xmlrpc.myxmlrpcserver</servlet-class></servlet><servlet-mapping> <servlet-name >MyXmlRpcServer</servlet-name> <url-pattern>/myxmlrpcserver</url-pattern></ Servlet-mapping>
XML-RPC Client implementation of the client is relatively simple, first to a Java client implementation myxmlrpcclient:


Package Net.sentom.xmlrpc;import Java.io.ioexception;import Java.net.malformedurlexception;import java.util.Vector ; Import Org.apache.xmlrpc.xmlrpcclient;import Org.apache.xmlrpc.xmlrpcexception;public class MyXmlRpcClient {public static void Main (string[] args) {try {xmlrpcclient xmlrpc = new Xmlrpcclient ("http://localhost:8080/XMLRPC/ Myxmlrpcserver "); Vector params = new vector ();p arams.addelement ("Tom"); String result = (string) xmlrpc.execute ("Myhandler.sayhello", params); SYSTEM.OUT.PRINTLN (result);} catch (Malformedurlexception e) {System.out.println (e.tostring ());} catch (Xmlrpcexception e) {System.out.println ( E.tostring ());} catch (IOException e) {e.printstacktrace ();}}

Http://localhost:8080/XMLRPC/MyXmlRpcServer is the Myxmlrpcserver access URL.



String result = (string) xmlrpc.execute ("Myhandler.sayhello", params);

One more Python client implementation



Import Xmlrpcliburl = ' http://localhost:8080/XMLRPC/MyXmlRpcServer '; server = Xmlrpclib. Server (URL);p rint server.myHandler.sayHello (' Tom ');