发布网友 发布时间:2024-10-24 04:04
共1个回答
热心网友 时间:5分钟前
JAX-WS简介:
JAX_RPC(Java API for XML-Based RPC)允许Java应用程序可以通过已知的描述信息调用一个基于Java的Web服务,描述信息与Web服务的WSDL描述相一致
JAX-RPC2.0更名为JAX-WS2.0(Java API for XML-Based Web Services)
JAX-WS中,一个远程调用可以转换为一个基于XML的协议,如SOAP。开发者在使用JAX-WS的过程中,不需要编写任何生成、处理SOAP消息的代码,JAX-WS在运行时自动将API的调用转换为相应的SOAP消息
在服务器端,用户只需要通过Java语言定义远程调用所需实现的接口,并提供相应实现,通过调用JAX-WS的服务发布接口即可将其发布为WebService接口
在客户端,用户可以通过JAX-WS的API创建一个代理来实现对于远程服务器端的调用
JAX-WS服务端:
JAX-WS服务端采用注释描述WebService,不再依赖WebService描述文件
使用JDK1.6_45(JDK1.5中不包含所需类)
[java] view plain copy
package com.sean.server;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
@WebService
public interface Plus {
@WebMethod
public int plus(@WebParam(name="x") int x,@WebParam(name="y") int y);
}
[java] view plain copy
package com.sean.server;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
@WebService
public class PlusImpl implements Plus {
@WebMethod
public int plus(@WebParam(name="x") int x, @WebParam(name="y") int y) {
return x + y;
}
}
[java] view plain copy
package com.sean.server;
import javax.xml.ws.Endpoint;
public class Server {
public static void main(String[] args) {
PlusImpl plus = new PlusImpl();
String addr = "http://127.0.0.1:8888/Plus";
Endpoint.publish(addr, plus);
}
}
程序启动后,访问http://127.0.0.1:8888/Plus?wsdl即可查看自动生成的WSDL文件
[html] view plain copy
<?xml version="1.0" encoding="UTF-8"?>
<!-- Published by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is
JAX-WS RI 2.1.6 in JDK 6. -->
<!-- Generated by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is
JAX-WS RI 2.1.6 in JDK 6. -->
<definitions name="PlusImplService" targetNamespace="http://server.sean.com/"
xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:tns="http://server.sean.com/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
<types>
<xsd:schema>
<xsd:import schemaLocation="http://127.0.0.1:8888/Plus?xsd=1"
namespace="http://server.sean.com/" />
</xsd:schema>
</types>
<message name="plus">
<part name="parameters" element="tns:plus" />
</message>
<message name="plusResponse">
<part name="parameters" element="tns:plusResponse" />
</message>
<portType name="PlusImpl">
<operation name="plus">
<input message="tns:plus" />
<output message="tns:plusResponse" />
</operation>
</portType>
<binding name="PlusImplPortBinding" type="tns:PlusImpl">
<soap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http" />
<operation name="plus">
<soap:operation soapAction="" />
<input>
<soap:body use="literal" />
</input>
<output>
<soap:body use="literal" />
</output>
</operation>
</binding>
<service name="PlusImplService">
<port name="PlusImplPort" binding="tns:PlusImplPortBinding">
<soap:address location="http://127.0.0.1:8888/Plus" />
</port>
</service>
</definitions>
使用 SoapUI5.0.0尝试用上面的WSDL创建WebService服务端报错(org.apache.xmlbeans.XmlException:error:does not close tag.)
使用SoapUI4.5.2则一切正常,只能归咎于不同版本的SoapUI对文件格式校验不同
JAX-WS客户端:
[java] view plain copy
package com.sean.client;
import java.net.URL;
import javax.xml.namespace.QName;
import javax.xml.ws.Service;
import com.sean.server.Plus;
public class Client {
public static void main(String[] args) throws Exception {
QName serviceName = new QName("http://server.sean.com/", "PlusImplService");
QName portName = new QName("http://server.sean.com/", "PlusImplPort");
String addr = "http://127.0.0.1:8888/Plus?wsdl";
URL url = new URL(addr);
Service service = Service.create(url, serviceName);
Plus plus = service.getPort(portName,Plus.class);
//Plus plus = service.getPort(Plus.class);
int result = plus.plus(1, 2);
System.out.println("result:" + result);
}
}
使用Plus plus = service.getPort(Plus.class)方法时,客户端调用时报错:
Exception in thread "main" javax.xml.ws.WebServiceException: Undefined port type: {http://server.sean.com/}Plus
解决方式一:
如客户端示例,将Plus plus = service.getPort(Plus.class)修改为Plus plus = service.getPort(portName,Plus.class)
解决方式二:
修改PlusImpl类的@WebService标记修改为@WebService(endpointInterface="com.sean.server.Plus")