标签:webservice
使用Axis编写WebService比较简单,就我的理解,WebService的实现代码和编写Java代码其实没有什么区别,主要是将哪些Java类发布为WebService。下面是一个从编写测试例子到发布WebService,以及编写测试代码的过程介绍。
本例子的WebService提供了两个方法,分别是sayHello和sayHelloToPerson,第一个只是返回一个"Hello"字符串,没有参数,第二个函数接受一个字符串作为参数,返回"Hello 参数值",该例子比较简单,但是清楚的说明了从编写代码到发布为WebService以及测试编写好的WebService全过程。
编写服务代码
服务代码提供了两个函数,分别为sayHello和sayHelloToPerson,源代码如下:
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package com.sinosoft.webservice;
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public class HelloService {
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public String sayHello() {
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return "Hello";
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}
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public String sayHelloToPerson(String name) {
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if (name == null || name.equals("")) {
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name = "nobody";
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}
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return "Hello " + name;
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}
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}
发布WebService
要将上边写的HelloService类发布为WebService,需要先搭建Web应用。下面是在Tomcat下使用Axis(http://ws.apache.org/axis/)创建WebService服务的例子。
在Tomcat下创建Web应用
在该例子中,在Tomcat下创建了一个context path为ws的WEB应用。
1. 在myeclipse中创建WebServiceTest的webproject
2. 在WEB-INF文件夹下web.xml文件,该文件的内容如下:
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web
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Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
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<web-app>
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<display-name>Apache-Axis</display-name>
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<listener>
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<listener-class>org.apache.axis.transport.http.AxisHTTPSessionListener</listener-class>
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</listener>
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<servlet>
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<servlet-name>AxisServlet</servlet-name>
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<display-name>Apache-Axis Servlet</display-name>
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<servlet-class>
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org.apache.axis.transport.http.AxisServlet
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</servlet-class>
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</servlet>
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<servlet>
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<servlet-name>AdminServlet</servlet-name>
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<display-name>Axis Admin Servlet</display-name>
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<servlet-class>
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org.apache.axis.transport.http.AdminServlet
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</servlet-class>
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<load-on-startup>100</load-on-startup>
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</servlet>
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<servlet>
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<servlet-name>SOAPMonitorService</servlet-name>
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<display-name>SOAPMonitorService</display-name>
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<servlet-class>
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org.apache.axis.monitor.SOAPMonitorService
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</servlet-class>
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<init-param>
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<param-name>SOAPMonitorPort</param-name>
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<param-value>5001</param-value>
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</init-param>
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<load-on-startup>100</load-on-startup>
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</servlet>
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<servlet-mapping>
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<servlet-name>AxisServlet</servlet-name>
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<url-pattern>/servlet/AxisServlet</url-pattern>
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</servlet-mapping>
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<servlet-mapping>
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<servlet-name>AxisServlet</servlet-name>
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<url-pattern>*.jws</url-pattern>
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</servlet-mapping>
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<servlet-mapping>
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<servlet-name>AxisServlet</servlet-name>
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<url-pattern>/services/*</url-pattern>
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</servlet-mapping>
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<servlet-mapping>
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<servlet-name>SOAPMonitorService</servlet-name>
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<url-pattern>/SOAPMonitor</url-pattern>
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</servlet-mapping>
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<!--
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<servlet-mapping>
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<servlet-name>AdminServlet</servlet-name>
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<url-pattern>/servlet/AdminServlet</url-pattern>
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</servlet-mapping>
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-->
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<session-config>
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<session-timeout>5</session-timeout>
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</session-config>
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<!-- currently the W3C havent settled on a media type for WSDL;
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http://www.w3.org/TR/2003/WD-wsdl12-20030303/#ietf-draft
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for now we go with the basic ‘it‘s XML‘ response -->
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<mime-mapping>
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<extension>wsdl</extension>
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<mime-type>text/xml</mime-type>
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</mime-mapping>
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<mime-mapping>
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<extension>xsd</extension>
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<mime-type>text/xml</mime-type>
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</mime-mapping>
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<welcome-file-list id="WelcomeFileList">
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<welcome-file>index.jsp</welcome-file>
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<welcome-file>index.html</welcome-file>
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<welcome-file>index.jws</welcome-file>
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</welcome-file-list>
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</web-app>
在上面的web.xml中主要是配置了axis的相关配置。
axis的相关配置
在上述的web.xml文件中已经对axis进行了配置,但是还需要进行额外的配置。
复制axis相关的jar文件(官网下载axis-bin-1_4.zip 就有如下jar包)
将axis的相关jar文件复制到WEB-INF\lib文件夹下。这些文件包括:
activation.jar
axis.jar
axis-ant.jar
commons-discovery-0.2.jar
commons-logging-1.0.4.jar
jaxrpc.jar
log4j-1.2.8.jar
saaj.jar
wsdl4j-1.5.1.jar
测试发布的Web应用
启动Tomcat服务,打开IE浏览器,访问地址http://127.0.0.1:8080/WebServiceTest/services,如果看到如下界面就说明AXIS部署成功了。
注意点:本人当时使用的时候 新建的web项目名字为webservice
发布WebService
发布WebService需要使用现有的AdminService来实现,这里我写了一个批处理文件来发布WebService,以后如果需要发布其他文件,只需要修改相应的参数就可以了。
创建deploy.wsdd文件
文件deploy.wsdd内容如下所示:
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<?xml version="1.0" encoding="UTF-8"?>
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<deployment xmlns="http://xml.apache.org/axis/wsdd/" xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
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<service name="HelloServices" provider="java:RPC">
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<parameter name="className" value="com.sinosoft.webservice.HelloService"/>
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<parameter name="allowedMethods" value="*"/>
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</service>
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</deployment>
创建发布WebService服务的批处理文件
批处理文件deploywebservice.bat内容如下:
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java -cp axis-ant.jar;axis-schema.jar;axis.jar;commons-discovery-0.2.jar;commons-logging-1.0.4.jar;jaxrpc.jar;log4j-1.2.8.jar;saaj.jar;wsdl4j-1.5.1.jar;xmlsec-1.3.0.jar org.apache.axis.client.AdminClient -lhttp://localhost:8080/WebServiceTest/services/AdminService deploy.wsdd
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pause
其中上面的jar包我都拷到和bat文件在同一个目录,现在将所有的jar文件都加入到classpath中进行执行。
-l后的参数是本地要发布WebService的AdminService对应的访问地址。
最后deploy.wsdd是对应的配置文件名称。
发布WebService服务
将deploy.wsdd文件和deploywebservice.bat文件复制到同一个文件夹下,执行deploywebservice.bat批处理文件,就可以将deploy.wsdd中描述的Java类发布为WebService。 项目文件目录结构
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发布完成之后在访问http://127.0.0.1:8080/WebServiceTest/services如下图所示:
从上图可以看出,发布成功后,多了一个HelloServices的服务。这样就说明HelloService发布成功了。
查看HelloServices的wsdl
访问http://127.0.0.1:8080/WebServiceTest/services/HelloServices?wsdl可以看到如下wsdl的内容:
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<?xml version="1.0" encoding="UTF-8"?>
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<wsdl:definitions targetNamespace="http://127.0.0.1:8080/WebServiceTest/services/HelloServices" xmlns:apachesoap="http://xml.apache.org/xml-soap" xmlns:impl="http://127.0.0.1:8080/WebServiceTest/services/HelloServices" xmlns:intf="http://127.0.0.1:8080/WebServiceTest/services/HelloServices" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
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<!--WSDL created by Apache Axis version: 1.4
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Built on Apr 22, 2006 (06:55:48 PDT)-->
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<wsdl:message name="sayHelloToPersonRequest">
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<wsdl:part name="name" type="soapenc:string"/>
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</wsdl:message>
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<wsdl:message name="sayHelloRequest">
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</wsdl:message>
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<wsdl:message name="sayHelloToPersonResponse">
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<wsdl:part name="sayHelloToPersonReturn" type="soapenc:string"/>
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</wsdl:message>
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<wsdl:message name="sayHelloResponse">
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<wsdl:part name="sayHelloReturn" type="soapenc:string"/>
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</wsdl:message>
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<wsdl:portType name="HelloService">
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<wsdl:operation name="sayHello">
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<wsdl:input message="impl:sayHelloRequest" name="sayHelloRequest"/>
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<wsdl:output message="impl:sayHelloResponse" name="sayHelloResponse"/>
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</wsdl:operation>
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<wsdl:operation name="sayHelloToPerson" parameterOrder="name">
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<wsdl:input message="impl:sayHelloToPersonRequest" name="sayHelloToPersonRequest"/>
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<wsdl:output message="impl:sayHelloToPersonResponse" name="sayHelloToPersonResponse"/>
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</wsdl:operation>
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</wsdl:portType>
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<wsdl:binding name="HelloServicesSoapBinding" type="impl:HelloService">
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<wsdlsoap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
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<wsdl:operation name="sayHello">
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<wsdlsoap:operation soapAction=""/>
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<wsdl:input name="sayHelloRequest">
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<wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://webservice.sinosoft.com" use="encoded"/>
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</wsdl:input>
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<wsdl:output name="sayHelloResponse">
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<wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://127.0.0.1:8080/WebServiceTest/services/HelloServices" use="encoded"/>
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</wsdl:output>
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</wsdl:operation>
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<wsdl:operation name="sayHelloToPerson">
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<wsdlsoap:operation soapAction=""/>
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<wsdl:input name="sayHelloToPersonRequest">
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<wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://webservice.sinosoft.com" use="encoded"/>
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</wsdl:input>
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<wsdl:output name="sayHelloToPersonResponse">
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<wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://127.0.0.1:8080/WebServiceTest/services/HelloServices" use="encoded"/>
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</wsdl:output>
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</wsdl:operation>
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</wsdl:binding>
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<wsdl:service name="HelloServiceService">
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<wsdl:port binding="impl:HelloServicesSoapBinding" name="HelloServices">
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<wsdlsoap:address location="http://127.0.0.1:8080/WebServiceTest/services/HelloServices"/>
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</wsdl:port>
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</wsdl:service>
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</wsdl:definitions>
用Java调用WebService实例
下面是用Java调用刚发布的WebService例子。
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package test.com.sinosoft.webservice;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import javax.xml.namespace.QName;
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import javax.xml.rpc.ServiceException;
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import org.apache.axis.client.Call;
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import org.apache.axis.client.Service;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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public class TestHelloService {
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private static final Log log = LogFactory.getLog(TestHelloService.class);
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private static final String HELLO_SERVICE_ENDPOINT = "http://127.0.0.1:8080/WebServiceTest/services/HelloServices?wsdl";
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public static void main(String[] args) {
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TestHelloService tester = new TestHelloService();
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tester.callSayHelloToPerson();
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}
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public void callSayHello() {
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try {
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Service service = new Service();
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Call call = (Call) service.createCall();
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call.setTargetEndpointAddress(new java.net.URL(
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HELLO_SERVICE_ENDPOINT));
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call.setOperationName(new QName("http://webservice.sinosoft.com/",
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"sayHello"));
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call.setReturnType(org.apache.axis.Constants.XSD_STRING);
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try {
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String ret = (String) call.invoke(new Object[] {});
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System.out.println("The return value is:" + ret);
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return;
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} catch (IOException e) {
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e.printStackTrace();
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}
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} catch (MalformedURLException e) {
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e.printStackTrace();
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} catch (ServiceException e) {
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e.printStackTrace();
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}
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log.error("call sayHello service error!");
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}
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public void callSayHelloToPerson() {
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try {
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Service service = new Service();
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Call call = (Call) service.createCall();
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call.setTargetEndpointAddress(new java.net.URL(HELLO_SERVICE_ENDPOINT));
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call.setOperationName(new QName("http://webservice.sinosoft.com/",
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"sayHelloToPerson"));
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call.addParameter("name", org.apache.axis.Constants.XSD_STRING,
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javax.xml.rpc.ParameterMode.IN);
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call.setReturnType(org.apache.axis.Constants.XSD_STRING);
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try {
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String ret = (String) call.invoke(new Object[] { "Stephen" });
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System.out.println("The return value is:" + ret);
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return;
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} catch (IOException e) {
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e.printStackTrace();
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}
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} catch (MalformedURLException e) {
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e.printStackTrace();
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} catch (ServiceException e) {
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e.printStackTrace();
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}
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log.error("call sayHello service error!");
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}
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}
传参调用简便方法:
说明:getSasmOrgUnits 为调用webwervice中的方法的名称
//
private static final String HELLO_SERVICE_ENDPOINT = "http://172.16.100.129:6888/ormrpc/services/WSBaseSasmFacade?wsdl";
Service service = new Service();
Call call = (Call) service.createCall();
call.setTargetEndpointAddress(new java.net.URL(
HELLO_SERVICE_ENDPOINT));
String ret = (String)call.invoke("getSasmOrgUnits", new Object[] {MD5("参数1"),MD5("参数2")});
System.out.println("The return value is:" + ret);
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利用Java编写简单的WebService实例
标签:webservice
原文地址:http://blog.csdn.net/baicp3/article/details/46698793