Hi,
Be sure to check the errata and Examples archive for "Programming Web Services with SOAP" at http://www.oreilly.com/catalog/progwebsoap/ . There appears to be a number of small errors in the examples, especially in the URI and the location of class files. I got rid of the NullPointer exception by upgrading to j2sdk1.4.0 on Windows NT. On Unix (Slackware Linux) I'm using jdk1.3.1_02 with the VM engine set to "classic" in order to get it to work. In addition to this I had to do a lot of CLASSPATH shuffling in tomcat.bat/tomcat.sh in order to get every class included in the right order. On Windows NT, the CLASSPATH ended up looking like this: Using CLASSPATH: C:\J2sdk1.4.0\lib\tools.jar;C:\SOAP\xerces-1_4_4\xerces.jar;C:\ SOAP\soap-2_2\lib\soap.jar;C:\SOAP\soap-2_2\lib\mail.jar;C:\SOAP\soap-2_2\lib\ac tivation.jar;C:\SOAP\soap-2_2;c:\soap\jakarta-tomcat-3.2.4\classes;c:\soap\jakar ta-tomcat-3.2.4\lib\ant.jar;c:\soap\jakarta-tomcat-3.2.4\lib\crimson.jar;c:\soap \jakarta-tomcat-3.2.4\lib\jasper.jar;c:\soap\jakarta-tomcat-3.2.4\lib\jaxp.jar;c :\soap\jakarta-tomcat-3.2.4\lib\servlet.jar;c:\soap\jakarta-tomcat-3.2.4\lib\web server.jar;c:\j2sdk1.4.0\lib\tools.jar (Don't know why I had to include tools.jar explicitly in the beginning, but it didn't work without it). The client uses a CLASSPATH looking like this: CLASSPATH=c:\soap\xerces-1_4_4;c:\soap\soap-2_2\lib\soap.jar;c:\soap\soap-2_2\li b\mail.jar;c:\soap\soap-2_2\lib\activation.jar;c:\soap Then it works: C:\SOAP>java Hello_client http://localhost:8080/soap/servlet/rpcrouter Chris Calling the SOAP Server to say hello The SOAP Server says: Hello from Windows NT Chris Best wishes Steen Linden On Mon, 25 Feb 2002, Carver, Christopher wrote: > --Problem: > When trying to recieve a SOAP message from my server I get the following error: > > Exception in thread "main" [SOAPException: faultCode=SOAP-ENV:Protocol; >msg=Unsupported response content type "text/html", must be: "text/xml". Response was: > <h1>Error: 500</h1> > <h2>Location: /soap/servlet/messagerouter</h2><b>Internal Servlet Error:</b><br> > <pre>javax.servlet.ServletException: Error building response envelope: >java.lang.NullPointerException > > This is my first attempt in using SOAP and I am able to run the > samples cleanly that came with Apache SOAP. I'm trying to execute the > example from the OReilly Book "Programming Wes Services with SOAP." > > --Here is my execution string from the command line: > java Example1_client http://localhost:8080/soap/servlet/messagerouter Chris > > --Here is the client code: > > import java.io.*; > import java.net.*; > import java.util.*; > import org.apache.soap.util.xml.*; > import org.apache.soap.*; > import org.apache.soap.rpc.*; > > public class Example1_client { > public static void main (String[] args) throws Exception { > System.out.println("\n\nCalling the SOAP server to say hello.\n\n"); > URL url = new URL(args[0]); > String name = args[1]; > > Call call = new Call(); > call.setTargetObjectURI("urn:Example1"); > call.setMethodName("sayHello"); > call.setEncodingStyleURI(Constants.NS_URI_SOAP_ENC); > Vector params = new Vector(); > params.addElement(new Parameter("name", String.class, name, null)); > call.setParams(params); > > System.out.println("The SOAP Server says: "); > > Response resp = call.invoke(url, ""); > > if (resp.generatedFault()) { > Fault fault = resp.getFault(); > System.out.println("Fault Code = " + fault.getFaultCode()); > System.out.println("Fault String = " + fault.getFaultString()); > } else { > Parameter result = resp.getReturnValue(); > System.out.println(result.getValue()); > System.out.println(); > } > } > } > > --Here is the server code: > > package samples; > > public class Hello { > public String sayHello(String name) { > return "Hello " + name; > } > } >
