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webservice -- cxf客户端调用axis2服务端
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背景:
有个项目, 需要由第三方提供用户信息, 实现用户同步操作, 对方给提供webservice接口(axis2实现)并也使用axis2作主客户端调用我方提供的webservice接口
起初, 由于项目使用了spring, 且spring可与cxf较好的集成, 所以也就选用了cxf,
可问题随之出现, 接口可以调用到, 接口的具体方法也可以调用到,
但是,
1. cxf作为客户端, 获取服务端返回值时均为null.
2. cxf作为服务端, 获取axis2客户端传来的参数时, 也均为null.
针对上述问题, 做了大量调试模拟, 如有不妥之处, 敬请指正.
一. axis2服务器搭建
简单起见, axis2r搭建采用较为简单的一种方式, 即将服务类和services.xml打成.aar包发布.
1. 下载部署axis2
http://axis.apache.org/axis2/java/core/
这里选择下载的1.7.0版本, axis2-1.7.0-war.zip
2. 将zip文件中的axis2.war包解压到tomcat的webapps目录中, 启动tomcat,
完成axis2的安装部署, 如下图:
3. 访问 http://localhost/axis2 显示如下页面, 表示axis2部署成功
4. 访问 http://localhost/axis2/services/listServices , 可查看此axis2所发布的webservice服务, 如下图:
其中, Version为axis2默认发布的服务, getVersion是此服务的方法
二. 编写发布webserivce接口
1. 新建java项目myAxis2
2. 创建服务类HelloShooter.java
package com.shooter.webservice; public class HelloShooter { public void getShooterId(String shooterId) {
System.out.println("狙击手编号: " + shooterId);
} public String shoot(int num) {
return "本次出击共狙击 " + num + " 名敌军";
} public String undershoot() {
return "脱靶, 很遗憾!";
} }
3. 新建META-INF目录, 并创建services.xml文件
services.xml源码如下:
<serviceGroup>
<!-- 第一个webservice服务 -->
<service name="HelloShooter" targetNamespace="http://sharp-shooter">
<!-- 命名空间 -->
<schema schemaNamespace="http://sharp-shooter" />
<!-- 发布的服务类全路径 -->
<parameter name="ServiceClass">com.shooter.webservice.HelloShooter
</parameter>
<!-- 对每个方法配置处理器 -->
<operation name="getShooterId">
<messageReceiver class="org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver" />
</operation>
<operation name="shoot">
<messageReceiver class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" />
</operation>
<operation name="undershoot">
<messageReceiver class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" />
</operation>
</service>
</serviceGroup>
另一种services.xml编写方式, 配置全局处理器, 但此种方法我没有成功过, 如哪位测试成功了, 交流一下
<serviceGroup>
<!-- 第一个webservice服务 -->
<service name="HelloShooter" targetNamespace="http://sharp-shooter.com">
<!-- 命名空间 -->
<schema schemaNamespace="http://sharp-shooter.com" />
<!-- 发布的服务类全路径 -->
<parameter name="ServiceClass">com.shooter.webservice.HelloShooter</parameter>
<messageReceivers>
<!--有返回值的处理器-->
<messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-out"
class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" />
<!--无返回值的处理器-->
<messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-only"
class="org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver" />
</messageReceivers>
</service>
</serviceGroup>
其中,
1) service元素的name属性为服务名称, 如果没有设置此属性, 那么服务名称为发布包名, 如发布包为shooter.aar, 则服务名为shooter
2) schema配置的为命名空间, 并在service元素中配置同样的命名空间
3) parameter name="ServicesClass"配置的为服务类的全路径
4) 处理器, 第一种方式为全局处理器, 第二各方式为为某个方法配置所需要的处理器
4. 创建.aar包
1) 使用myeclipse的导出功能, 导出编写的服务类和services.xml文件为jar包, 如图:
可去除不必要的文件.
2) 修改包扩展名为.aar
3) 将.aar包拷贝到...\apache-tomcat-6.0.35-80\webapps\axis2\WEB-INF\services目录中(自动部署), 完成服务端发布
4) 访问 http://localhost/axis2/services/listServices , 服务页面显示HelloShooter服务, 则发布成功
三. CXF客户端
1. 新建项目, 引入所需CXF的maven依赖(此处有坑, 后文解释)
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>2.2.9</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-core</artifactId>
<version>2.2.9</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http</artifactId>
<version>2.2.9</version>
</dependency>
2. 获取HelloShooter的接口信息
访问 http://localhost/axis2/services/HelloShooter?wsdl, 获取如下信息:
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:ns1="http://org.apache.axis2/xsd" xmlns:ns="http://sharp-shooter"
xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl"
targetNamespace="http://sharp-shooter">
<wsdl:documentation>HelloShooter</wsdl:documentation>
<wsdl:types>
<xs:schema attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://sharp-shooter">
<xs:element name="undershoot">
<xs:complexType>
<xs:sequence />
</xs:complexType>
</xs:element>
<xs:element name="undershootResponse">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" name="return" nillable="true" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="shoot">
<xs:complexType>
<xs:sequence>
<xs:element name="num" type="xs:int" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="shootResponse">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" name="return" nillable="true" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="getShooterId">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" name="shooterId" nillable="true" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
</wsdl:types>
<wsdl:message name="undershootRequest">
<wsdl:part name="parameters" element="ns:undershoot" />
</wsdl:message>
<wsdl:message name="undershootResponse">
<wsdl:part name="parameters" element="ns:undershootResponse" />
</wsdl:message>
<wsdl:message name="shootRequest">
<wsdl:part name="parameters" element="ns:shoot" />
</wsdl:message>
<wsdl:message name="shootResponse">
<wsdl:part name="parameters" element="ns:shootResponse" />
</wsdl:message>
<wsdl:message name="getShooterIdRequest">
<wsdl:part name="parameters" element="ns:getShooterId" />
</wsdl:message>
<wsdl:message name="getShooterIdResponse" />
<wsdl:portType name="HelloShooterPortType">
<wsdl:operation name="undershoot">
<wsdl:input message="ns:undershootRequest" wsaw:Action="urn:undershoot" />
<wsdl:output message="ns:undershootResponse" wsaw:Action="urn:undershootResponse" />
</wsdl:operation>
<wsdl:operation name="shoot">
<wsdl:input message="ns:shootRequest" wsaw:Action="urn:shoot" />
<wsdl:output message="ns:shootResponse" wsaw:Action="urn:shootResponse" />
</wsdl:operation>
<wsdl:operation name="getShooterId">
<wsdl:input message="ns:getShooterIdRequest" wsaw:Action="urn:getShooterId" />
<wsdl:output message="ns:getShooterIdResponse" wsaw:Action="urn:getShooterIdResponse" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloShooterSoap11Binding" type="ns:HelloShooterPortType">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" />
<wsdl:operation name="undershoot">
<soap:operation soapAction="urn:undershoot" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="shoot">
<soap:operation soapAction="urn:shoot" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="getShooterId">
<soap:operation soapAction="urn:getShooterId" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:binding name="HelloShooterSoap12Binding" type="ns:HelloShooterPortType">
<soap12:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" />
<wsdl:operation name="undershoot">
<soap12:operation soapAction="urn:undershoot" style="document" />
<wsdl:input>
<soap12:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap12:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="shoot">
<soap12:operation soapAction="urn:shoot" style="document" />
<wsdl:input>
<soap12:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap12:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="getShooterId">
<soap12:operation soapAction="urn:getShooterId" style="document" />
<wsdl:input>
<soap12:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap12:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:binding name="HelloShooterHttpBinding" type="ns:HelloShooterPortType">
<http:binding verb="POST" />
<wsdl:operation name="undershoot">
<http:operation location="undershoot" />
<wsdl:input>
<mime:content type="application/xml" part="parameters" />
</wsdl:input>
<wsdl:output>
<mime:content type="application/xml" part="parameters" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="shoot">
<http:operation location="shoot" />
<wsdl:input>
<mime:content type="application/xml" part="parameters" />
</wsdl:input>
<wsdl:output>
<mime:content type="application/xml" part="parameters" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="getShooterId">
<http:operation location="getShooterId" />
<wsdl:input>
<mime:content type="application/xml" part="parameters" />
</wsdl:input>
<wsdl:output>
<mime:content type="application/xml" part="parameters" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="HelloShooter">
<wsdl:port name="HelloShooterHttpSoap11Endpoint" binding="ns:HelloShooterSoap11Binding">
<soap:address location="http://localhost/axis2/services/HelloShooter.HelloShooterHttpSoap11Endpoint/" />
</wsdl:port>
<wsdl:port name="HelloShooterHttpSoap12Endpoint" binding="ns:HelloShooterSoap12Binding">
<soap12:address location="http://localhost/axis2/services/HelloShooter.HelloShooterHttpSoap12Endpoint/" />
</wsdl:port>
<wsdl:port name="HelloShooterHttpEndpoint" binding="ns:HelloShooterHttpBinding">
<http:address location="http://localhost/axis2/services/HelloShooter.HelloShooterHttpEndpoint/" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
3. 根据接口信息, 创建客户端接口
package com.shooter.cxf.client; import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService; @WebService(name="HelloShooter", targetNamespace="http://sharp-shooter")
public interface IHelloShooter { @WebMethod(operationName="getShooterId")
public void getShooterId(@WebParam(name="shooterId", targetNamespace="http://sharp-shooter")String shooterId); @WebMethod(operationName="shoot")
public @WebResult(targetNamespace="http://sharp-shooter") String shoot(@WebParam(name="num", targetNamespace="http://sharp-shooter")int num); @WebMethod(operationName="undershoot")
public @WebResult(targetNamespace="http://sharp-shooter") String undershoot(); }
注意重点: 此接口主要在4处添加了注解, 分别是: 类, 方法, 方法参数, 方法返回值,
前面描述的项目中出现的问题, 也正在这里某一处或几处没有添加注解引起的(说实话, 感觉有点怪怪的, 哪位大神有更好的办法, 求赐教)
4. 创建接口调用测试类
package com.shooter.cxf.client; import org.apache.cxf.jaxws.JaxWsProxyFactoryBean; public class CXFClient { public static void main(String[] args) {
// 保存返回值
String result = ""; String url = "http://localhost/axis2/services/HelloShooter";
JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
factory.setServiceClass(IHelloShooter.class);
factory.setAddress(url);
// 创建接口代理对象
IHelloShooter helloServices = (IHelloShooter) factory.create(); // 调用接口方法
helloServices.getShooterId("1123"); System.out.println("-----------------------------");
result = helloServices.shoot(6);
System.out.println(result); System.out.println("-----------------------------");
result = helloServices.undershoot();
System.out.println(result);
}
}
执行main方法:
1) getShooterId()方法, 无返回值, 服务端打印相关信息
2) shoot()和undershoot()方法, 有返回值, 在客户端打印相关信息
运行不粗来? 客户端报异常? getShooterId()方法? 那就对了...
填坑:
调试的时候, 试验N多次, 客户端总报如下异常信息:
Exception in thread "main" org.apache.cxf.binding.soap.SoapFault: Error reading XMLStreamReader.
at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:238)
at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:60)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:801)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1679)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1517)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1425)
at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:650)
at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:531)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:462)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:365)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:318)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:338)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324)
at com.jialin.ejb.MyClient.main(MyClient.java:40)
Caused by: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
at [row,col {unknown-source}]: [1,0]
at com.ctc.wstx.sr.StreamScanner.throwUnexpectedEOF(StreamScanner.java:677)
at com.ctc.wstx.sr.BasicStreamReader.handleEOF(BasicStreamReader.java:2116)
at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2022)
at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1114)
at com.ctc.wstx.sr.BasicStreamReader.nextTag(BasicStreamReader.java:1137)
at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:139)
... 17 more
提炼一下, 就俩信息: Error reading XMLStreamReader.和[row,col {unknown-source}]: [1,0]
客户端出问题(当然也不能这么说, 当时的第一感觉)
各种试, 最后换了CXF的版本, 问题解决了
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>2.7.16</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-core</artifactId>
<version>2.7.16</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http</artifactId>
<version>2.7.16</version>
</dependency>
网上好像有帖子说服务端的问题, 个人觉得也不好这样说,
暂且说服务端与客户端版本不匹配吧,
如果有更好的解释, 不吝赐教
