Generate Java classes from WSDL command line

Generate Java classes from WSDL command line

I'll respond in English as per your request.

To generate Java classes from a WSDL file using the command line, you can use the wsdl2java tool provided by Apache CXF. Here's how to do it:

Prerequisites:

Generating Java classes from WSDL:

wsdl2java -client jaxws21 -d mypackage -p com.example.myproject http://myserver.com/mywsdl.wsdl

Here's a brief explanation of the options used:

What's generated:

The wsdl2java tool will generate a set of Java classes that correspond to the services and operations defined in the WSDL file. These classes are:

Additional steps:

After generating the Java code, you'll need to compile and package it using a tool like Apache Maven or Gradle. You may also need to create a deployment descriptor (e.g., web.xml in a WAR file) to configure your web service.

That's it! With these simple steps, you've successfully generated Java classes from a WSDL file using the command line.

How to read data from WSDL File in Java?

I'll make sure to respond in English for this question.

Reading data from a Web Services Description Language (WSDL) file in Java involves using the JAX-WS (Java API for XML-Based Web Services) implementation provided by Apache CXF or Sun's Metro. Here's an example of how you can achieve this:

Using Apache CXF

import org.apache.cxf.wsdl11.WSDLException;
import org.apache.cxf.wsdl11.WSDLReader;
public class WsdlReader {
public static void main(String[] args) {
try {
// Load the WSDL file
WSDLReader reader = new WSDLReader();
URL wsdlUrl = new URL("http://example.com/service?wsdl");
Definition definition = reader.read(wsdlUrl);
// Get the port and operations
QName portQName = definition.getPort(0).getPortType().getName();
Service service = definition.getService();
List operations = service.getInterface(portQName).getOperations();
// Print the operation names
for (Operation operation : operations) {
System.out.println(operation.getName());
}
} catch (WSDLException | MalformedURLException e) {
e.printStackTrace();
}
}
}

In this example, we load the WSDL file using the WSDLReader class and then extract the port, operations, and their names.

Using Sun's Metro

import javax.xml.ws.Endpoint;
import javax.xml.ws.WebServiceDescription;
public class WsdlReader {
public static void main(String[] args) {
try {
// Load the WSDL file
Endpoint endpoint = new Endpoint("http://example.com/service", null);
WebServiceDescription wsdlDoc = endpoint.getWsdlDocument();
// Get the port and operations
List webServices = wsdlDoc.getPortList();
for (WebService webService : webServices) {
List operations = webService.getOperationList();
for (Operation operation : operations) {
System.out.println(operation.getName());
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

In this example, we create an Endpoint instance and then retrieve the WSDL document using the getWsdlDocument() method. We can then extract the port and operations from the WSDL document.

Additional Steps

After reading the WSDL file, you may also want to perform additional steps such as:

Remember to replace http://example.com/service?wsdl with your actual WSDL file URL.