• Myeclipse 8.5开发基于JAXWS的Web service实例


    使用Myeclipse 8.5开发基于JAX-WSWeb service实例 

    本文为Web service 开发入门篇,主要介绍在Myeclipse 8.5环境下开发Web service的服务程序和客户端程序的基本流程。 
    在Weblogic 10.3.4 中部署Web service服务。 

    开发环境如下: 
    JAVA IDE:       Myeclipse 8.5 
    Web server:     Weblogic 10.3.4 

    开发Web service服务程序,需要了解以下相关内容, WSDL,  SOAP, XML。这些是组成Web service 的基础。 

    在Myeclipse8.5下开发Web service程序,目前系统支持的开发框架有3个,JAX-WS,REST(JAX-RS),XFire。其中系统建议不要使用XFire 的框架,可能是要被淘汰了(deprecated)。我们选择的是JAX-WS框架。这个需要Java EE 5.0的支持。所以后面选择Web server容器的时候,是要能支持Java EE 5.0的才可以部署成功。 

    (一) Web service服务端开发 
    1. 新建一个Web service project, 菜单File -> New -> Web Service Project,

    在上面的框中输入项目名myWebSvc,框架选择 JAX-WS, J2EE只能选择Java EE 5.0。 
    Finish完成项目新建。 

    2. 新建一个 Java Bean, 就是一个普通的Class, File –> New -> Class,


    包名输入 com.myweb.ws, 类名输入 SayHello, Finish 结束新建类。 

    在类中加入一个方法sayHaha如下, 

    package com.myweb.ws; 

    public class SayHello 

        public String sayHaha(String request) 
        { 
    return "Haha, " + request + ", O.K. !"; 



    3. 新建一个Web service, 菜单File –> New -> Other -> MyEclipse -> Web Services -> Web Service,



    Next 进入下一步, 


    选择 Create web  service from java class(Bottom-up scenario),Next进入下一步,



    Java class 输入 com.myweb.ws.SayHello, 选中 Generate WSDL in project 选项, 
    Finish 结束新建。 

    生成新的服务代理类, com.myweb.ws.SayHelloDelegation 
    生成WSDL定义文件,WebRoot\WEB-INF\wsdl\SayHelloService.wsdl 
    WebRoot\WEB-INF\wsdl\SayHelloService_Schema1.xsd, 

    (二) 部署Web service 服务 
    1. Window -> Show View -> Servers, 这里前提是已经安装完成Weblogic10.3.4, 
    在 Weblogic 10.x上点右键, 选择Add Deployment 部署myWebSvc, 


    Finish结束部署。 

    2. 重启Weblogic 服务,在浏览器输入 http://localhost:7001/myWebSvc/SayHelloPort,如果显示正确,则服务发布成功。 

    3. 在创建Web service 项目的过程中,如果加入了 JAX-WS 2.1 Runtime / API 库,在部署Web service时,会报错误, 

    2011-10-13 17:28:22 [com.sun.xml.ws.policy.jaxws.BuilderHandler]  getPolicySubjects 
    严重: [failed to localize] WSP_1014_POLICY_REFERENCE_DOES_NOT_EXIST(zip:D:/bea/weblogic1034/webdomain/servers/AdminServer/tmp/_WL_user/_appsdir_WebServicePro_dir/achpn5/war/WEB-INF/lib/webservices-rt.jar!/WEB-INF/wsdl/wsat.wsdl#Addressing_policy) 
    2011-10-13 17:28:22 [com.sun.xml.ws.policy.jaxws.PolicyWSDLParserExtension]  finished 
    严重: [failed to localize] WSP_1014_POLICY_REFERENCE_DOES_NOT_EXIST(zip:D:/bea/weblogic1034/webdomain/servers/AdminServer/tmp/_WL_user/_appsdir_WebServicePro_dir/achpn5/war/WEB-INF/lib/webservices-rt.jar!/WEB-INF/wsdl/wsat.wsdl#Addressing_policy) 
    2011-10-13 17:28:22 [com.sun.xml.ws.policy.jaxws.PolicyWSDLParserExtension]  finished 
    严重: [failed to localize] WSP_1018_POLICY_EXCEPTION_WHILE_FINISHING_PARSING_WSDL() 
    com.sun.xml.ws.policy.PolicyException: [failed to localize] WSP_1014_POLICY_REFERENCE_DOES_NOT_EXIST(zip:D:/bea/weblogic1034/webdomain/servers/AdminServer/tmp/_WL_user/_appsdir_WebServicePro_dir/achpn5/war/WEB-INF/lib/webservices-rt.jar!/WEB-INF/wsdl/wsat.wsdl#Addressing_policy) 
    at com.sun.xml.ws.policy.jaxws.BuilderHandler.getPolicies(BuilderHandler.java:93) 

    只要删去JAX-WS这两个包 ,再重新部署就可以了。

    4. 如果在Tomcat 6.0上部署,则需要加上JAX-WS API /  Runtime 两个库,否则会报错,

        严重: Error configuring application listener of class com.sun.xml.ws.transport.http.servlet.WSServletContextListener

    java.lang.ClassNotFoundException: com.sun.xml.ws.transport.http.servlet.WSServletContextListener

        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)

        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)

        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4078)



    (三) Web service 客户端开发 
    1. 新建 Java project, File -> New -> Java Project, 

    输入项目名 UseWS, Finish 结束新建。 

    2. 新建Web service client程序, File –> New -> Other -> MyEclipse -> Web Services -> Web Service Client,

     

    Next 进入下一步,

     

    WSDL File 为Web Service 的WSDL文件 
    E:\workspace\myWebSvc\WebRoot\WEB-INF\wsdl\SayHelloService.wsdl 

    Next进入下一步,



    Finish 结束新建。 

    3. 新建一个Test类,用来调用 SayHelloService,  File -> New -> Class,



    Finish 结束类的新建。 

    修改类如下: 
    import com.myweb.ws.SayHelloDelegate; 
    import com.myweb.ws.SayHelloService; 

    public class Test 


        public static void main(String[] args) 
        { 
    String request = "World"; 
    String response = null; 

    SayHelloService sayHelloSvc = new SayHelloService(); 
    SayHelloDelegate sayHelloDgt = sayHelloSvc.getSayHelloPort(); 

    response = sayHelloDgt.sayHaha(request); 
    System.out.println(response); 
        } 


    4. 运行项目,发现一个错误, 
    Exception in thread "main" com.sun.xml.ws.client.ClientTransportException: HTTP transport error: java.net.ConnectException: Connection refused: connect 
    at com.sun.xml.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:134) 
    at com.sun.xml.ws.transport.http.client.HttpTransportPipe.process(HttpTransportPipe.java:140) 
    at com.sun.xml.xwss.XWSSClientPipe.process(XWSSClientPipe.java:118) 
    at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115) 
    at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595) 
    at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554) 
    at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539) 
    at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436) 
    at com.sun.xml.ws.client.Stub.process(Stub.java:248) 
    at com.sun.xml.ws.client.sei.SEIStub.doProcess(SEIStub.java:135) 
    at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:109) 
    at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:89) 
    at com.sun.xml.ws.client.sei.SEIStub.invoke(SEIStub.java:118) 
    at $Proxy34.sayHaha(Unknown Source) 
    at Test.main(Test.java:15) 
    Caused by: java.net.ConnectException: Connection refused: connect 
    at java.net.PlainSocketImpl.socketConnect(Native Method) 
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) 
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) 
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) 
    at java.net.Socket.connect(Socket.java:507) 
    at java.net.Socket.connect(Socket.java:457) 
    at sun.net.NetworkClient.doConnect(NetworkClient.java:157) 
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:365) 
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:477) 
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:214) 
    at sun.net.www.http.HttpClient.New(HttpClient.java:287) 
    at sun.net.www.http.HttpClient.New(HttpClient.java:299) 
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:792) 
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:771) 
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:669) 
    at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:836) 
    at com.sun.xml.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:122) 
    ... 14 more


    错误显示是Connection refused, 查看了SayHelloService.wsdl文件,发现这里的配置文件中, 标签service 的soap:address location 的端口是8080, 而Weblogic中我们用的默认端口是7001,于是修改端口号为7001, 

    <service name="SayHelloService"> 
        <port binding="tns:SayHelloPortBinding" name="SayHelloPort"> 
          <soap:address location="http://localhost:8080/myWebSvc/SayHelloPort"/> 
        </port> 
      </service> 

    修改为 

    <service name="SayHelloService"> 
        <port binding="tns:SayHelloPortBinding" name="SayHelloPort"> 
          <soap:address location="http://localhost:7001/myWebSvc/SayHelloPort"/> 
        </port> 
      </service> 

    另外,如果不在同一台机器上测试, 这里的localhost应该改为相应的IP地址。 

    修改后测试,显示成功。 

    Haha, World, O.K. !

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  • 原文地址:https://www.cnblogs.com/forever2698/p/2755439.html
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