table of Contents
Second, the WebService framework
Three, Apache CXF JAX-WS example
1. Create a SpringBoot project and add jaxws dependency
3. WebServiceConfig configuration class
(1) Use idea to generate client
1. Introduction
Introduction to Web Services
Web Services are a type of RPC. Web Services uses SOAP as the transport protocol, WSDL as the service description language, and UDDI as the service registration discovery (although it has not been developed). Although the related agreements of Web Services have not been updated since 2007, in some financial institutions such as banks, Web Services are still being used extensively. There are many frameworks for WebService, such as Axis2, XFire, CXF and so on. Apache Cxf is one of the best and most vital, and the CXF framework is not only a Web Services framework, but even RESTful-style services can be realized through CXF.
soap protocol
Simple Object Access Protocol (SOAP) is an XML-based protocol that can be used in conjunction with many existing Internet protocols and formats, including Hypertext Transfer Protocol (HTTP), Simple Mail Transfer Protocol (SMTP), and more Use Internet Mail Extension Protocol (MIME), based on the "universal" transport protocol, is an advantage of SOAP.
Apache CXF
JAX-WS stands for JavaTM API for XML-Based Web Services
AX-RS stands for JavaTM API for RESTful Web Services
Second, the WebService framework
The more popular WebService frameworks are as follows:
Apache CXF
http://cxf.apache.org/docs/springboot.html
Apache axis2
http://axis.apache.org/axis2/java/core/
Spring Web Services
https://docs.spring.io/spring-ws/docs/3.0.10.RELEASE/reference/#resources
Three, Apache CXF JAX-WS example
1. Create a SpringBoot project and add jaxws dependency
SpringBoot version 2.2.4.RELEASE
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-spring-boot-starter-jaxws</artifactId>
<version>3.3.9</version>
</dependency>If the release fails, pay attention to the version gap not too big
https://mvnrepository.com/artifact/org.apache.cxf/cxf-spring-boot-starter-jaxws/3.3.9
2. Create an interface
ServiceDemoimport javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
@WebService(name = "ServiceDemo",
targetNamespace = "http://www.baidu.com")
public interface ServiceDemo {
@WebMethod
String emrService(@WebParam String data);
}
ServiceDemoImpl
import org.springframework.stereotype.Component;
import javax.jws.WebParam;
import javax.jws.WebService;
@Component
@WebService(name = "ServiceDemo",
targetNamespace = "http://www.baidu.com",
endpointInterface = "com.asyf.demo.service.ServiceDemo")
public class ServiceDemoImpl implements ServiceDemo {
@Override
public String emrService(@WebParam String data) {
if (null == data || "".equals(data.trim())) {
return "传入的参数为空";
}
return "调用成功，传入的参数是：" + data;
}
}
3. WebServiceConfig configuration class
import com.asyf.demo.service.ServiceDemo;
import org.apache.cxf.Bus;
import org.apache.cxf.bus.spring.SpringBus;
import org.apache.cxf.jaxws.EndpointImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.xml.ws.Endpoint;
@Configuration
public class WebServiceConfig {
@Autowired
private ServiceDemo serviceDemo;
@Bean(name = Bus.DEFAULT_BUS_ID)
public SpringBus springBus() {
return new SpringBus();
}
@Bean
public Endpoint endpoint() {
EndpointImpl endpoint = new EndpointImpl(springBus(), serviceDemo);
endpoint.publish("/ws/api");
return endpoint;
}
}
4. Start the project
The service is published successfully. Visit http://localhost:8080/services/ws/api?wsdl and you can see the page as shown in the figure.
5. Test WebService
(1) Use idea to generate client
Create a new client package to store the generated files, right click to see WebServices
Click ok to generate the client file
Client file is successfully generated
(2) Test
Use the main function to test
public static void main(String[] args) {
String address = "http://127.0.0.1:8080/services/ws/api?wsdl";
// 代理工厂
JaxWsProxyFactoryBean jaxWsProxyFactoryBean = new JaxWsProxyFactoryBean();
// 设置代理地址
jaxWsProxyFactoryBean.setAddress(address);
// 设置接口类型
jaxWsProxyFactoryBean.setServiceClass(ServiceDemo.class);
// 创建一个代理接口实现
ServiceDemo cs = (ServiceDemo) jaxWsProxyFactoryBean.create();
// 数据准备
String data = String.valueOf(new Date());
// 调用代理接口的方法调用并返回结果
String rs = cs.emrService(data);
System.out.println("==============\n返回结果:" + rs);
}Console printing
