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Setting Up

Setting Up. First, install tomcat and axis as described elsewhere. Then copy Tomcat into a second folder. I’ve named mine jakarta-tomcat-server and jakarta-tomcat-client. I’ll refer to these as the “Client” and the “Server” folders afterwards.

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Setting Up

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  1. Setting Up • First, install tomcat and axis as described elsewhere. • Then copy Tomcat into a second folder. • I’ve named mine jakarta-tomcat-server and jakarta-tomcat-client. • I’ll refer to these as the “Client” and the “Server” folders afterwards. • Edit the Client’s conf/server.xml to use the ports 9005, 9090, and 9009.

  2. Starting Servers • Go into both the Client’s and the Server’s bin folder and start both servers. • I will assume the Client runs on 9090 and the server runs on 8080. • Open 2 browsers and point one at localhost:8080 and the other at localhost:9090. You should see Tomcat splash screens in both cases.

  3. Deploy Service • Deploy your web service onto the Server. • Verify that it works. • I’m using the Echo Service as an example, so it is deployed as a JWS on http://localhost:8080/. • I have a file called echoService.jws, and I can view the wsdl at • http://localhost:8080/axis/echoService.jws?wsdl

  4. Save WSDL • After viewing the WSDL file from your browser, save it into your Client folder. • Not required to be in this folder, but a convenient place to put it. • Open the WSDL file with WordPad and make sure that it is correct • That is, you saved it as WSDL, not HTML • You may also have to rename the file to get the extension correct. • Mine saved as echoService.jws, so I renamed it to echoService.wsdl.

  5. Compile Client Stubs • As with all java programs, you MUST get the classpath correct. • This is almost always the cause of any compilation errors. • The simplest thing to do is put all of the axis/WEB-INF/lib jars into your classpath. • If you work in the jakarta-tomcat-client folder, you can use the following command C:\Documents and Settings\Marlon Pierce\Desktop\jakarta-tomcat-5.0.19\jakarta-to mcat-client>java -classpath .\webapps\axis\WEB-INF\lib\axis.jar;.\webapps\axis\W EB-INF\lib\log4j-1.2.8.jar;.\webapps\axis\WEB-INF\lib\commons-discovery.jar;.\we bapps\axis\WEB-INF\lib\commons-logging.jar;.\webapps\axis\WEBINF\lib\wsdl4j.jar ;.\webapps\axis\WEB-INF\lib\activation.jar;.\webapps\axis\WEB-INF\lib\saaj.jar;. \webapps\axis\WEB-INF\lib\axis-ant.jar;.\webapps\axis\WEB-INF\lib\jaxrpc.jar org .apache.axis.wsdl.WSDL2Java echoService.wsdl

  6. Some Common Errors • If you mistype WSDL2Java, you will get • Exception in thread “main” java.lang.NoClassDefFoundError: org.apache.axis.WSDL.WSDL2java • Or similar. • If you have a typo in your classpath, you will get • Java.lang.NoClassDefFoundError: {some class} • Both of these can be corrected by checking the classpath and the command.

  7. Success • If you have successfully created your stubs, they will be located in the folder • Jakarta-tomcat-client/localhost/axis/echoService_jws • You should see four files there. • WSDL2Java has options that can change this default location.

  8. Now Compile the Java Stubs • First, look at the generated code. • You will notice the 4 stub classes all have package name that matches its directory. • You need to compile the stub classes into Client’s WEB-INF/classes directory. • You need to use the same classpath as before (all the jars in WEB-INF/lib). • But also you need WEB-INF/classes in your classpath now, too. • Some of the stubs depend upon other stubs.

  9. The Full Javac Command C:> javac -d webapps\axis\WEB-INF\classes -classpath webapps\axis\WEB-INF\classes;.\webapps\axis\WEB-INF\lib\axis.jar;.\webapps\axis\WEB-INF\lib\log4j-1.2.8.jar;.\webapps\axis\WEB-INF\lib\commons-discovery.jar;.\webapps\axis\WEB-INF\lib\commons-logging.jar;.\webapps\axis\WEB-INF\lib\wsdl4j.jar;.\webapps\axis\WEB-INF\lib\activation.jar;.\webapps\axis\WEB-INF\lib\saaj.jar;.\webapps\axis\WEB-INF\lib\axis-ant.jar; .\webapps\axis\WEB-INF\lib\jaxrpc.jar localhost/axis/echoService_jws/*.java

  10. Note the -d option • This tells the compiler where to put your classes. • I’ve specified the classes directory. • The classes will be created in • axis/WEB-INF/classes/localhost/axis/echoService_jws/ • Check the above folder in the Client tomcat to verify. • You must verify this before proceeding.

  11. Designing the JSP • First, shutdown and restart the Client tomcat host. • Easiest way to force it to load your new classes. • Next, create a new file, MyClient.jsp • Name doesn’t matter, but should have .jsp extension • MUST put this in jakarta-tomcat-client’s webapp/axis directory. • It may also be in any subfolder of axis except WEB-INF. • It must be in the axis folder so that it can access all of the axis jars and the stub classes you just compiled.

  12. MyClient.jsp <%@ page import="localhost.axis.echoService_jws.*"%> <%@ page import="java.net.URL"%> <% String host="http://localhost:8080/axis/echoService.jws"; EchoService myEcho=new EchoServiceServiceLocator().getechoService(new URL(host)); String message=myEcho.echo("Hello World"); %> <html><body> The echo message is <%=message%> </body></html>

  13. Notes • We had to import the packages of the client stubs that we created. • We also needed java.net.URL. • The client side steps are • First, create a locator instance for your service (EchoServiceServiceLocator). • Second, create the local proxy class instance of EchoService, myEcho. • Now use myEcho as if it were local. It has all the methods (wsdl operations) of your service.

  14. Final Comments • Why did we go to so much trouble? • Now you can run the service independently from the client. • To test, zip up your client and give it to someone else. • Have them invoke your service. • You must run your Server tomcat. • Your victim should modify localhost:8080 to your.real.machine.name:8080.

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