Spring+基于AXIS2 的 werservice

Web Service基本概念

Web Service也叫XML Web Service WebService是一种可以接收从Internet或者Intranet上的其它系统中传递过来的请求，轻量级的独立的通讯技术。是:通过SOAP在Web上提供的软件服务，使用WSDL文件进行说明，并通过UDDI进行注册。

XML：(Extensible Markup Language)扩展型可标记语言。面向短期的临时数据处理、面向万维网络，是Soap的基础。

Soap：(Simple Object Access Protocol)简单对象存取协议。是XML Web Service 的通信协议。当用户通过UDDI找到你的WSDL描述文档后，他通过可以SOAP调用你建立的Web服务中的一个或多个操作。SOAP是XML文档形式的调用方法的规范，它可以支持不同的底层接口，像HTTP(S)或者SMTP。

WSDL：(Web Services Description Language) WSDL 文件是一个 XML 文档，用于说明一组 SOAP 消息以及如何交换这些消息。大多数情况下由软件自动生成和使用。

UDDI (Universal Description, Discovery, and Integration) 是一个主要针对Web服务供应商和使用者的新项目。在用户能够调用Web服务之前，必须确定这个服务内包含哪些商务方法，找到被调用的接口定义，还要在服务端来编制软件，UDDI是一种根据描述文档来引导系统查找相应服务的机制。UDDI利用SOAP消息机制（标准的XML/HTTP）来发布，编辑，浏览以及查找注册信息。它采用XML格式来封装各种不同类型的数据，并且发送到注册中心或者由注册中心来返回需要的数据。

接下来是将webservice 基于axis2 +spring 配置实战

spring 的配置就不细讲了

axis2 用到的 maven 依赖如下：

    <properties>        <axis2.version>1.6.2</axis2.version>    </properties>      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2</artifactId>          <version>${axis2.version}</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.axis2/axis2-adb -->      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-adb</artifactId>          <version>${axis2.version}</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.axis2/axis2-jaxws -->      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-jaxws</artifactId>          <version>${axis2.version}</version>      </dependency>      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-kernel</artifactId>          <version>${axis2.version}</version>      </dependency>      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-metadata</artifactId>          <version>${axis2.version}</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.axis2/axis2-saaj -->      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-saaj</artifactId>          <version>${axis2.version}</version>      </dependency>      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-spring</artifactId>          <version>${axis2.version}</version>      </dependency>      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-transport-http</artifactId>          <version>${axis2.version}</version>      </dependency>      <dependency>          <groupId>org.apache.axis2</groupId>          <artifactId>axis2-transport-local</artifactId>          <version>${axis2.version}</version>      </dependency>      <!-- https://mvnrepository.com/artifact/commons-httpclient/commons-httpclient -->      <dependency>          <groupId>commons-httpclient</groupId>          <artifactId>commons-httpclient</artifactId>          <version>3.1</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.neethi/neethi -->      <dependency>          <groupId>org.apache.neethi</groupId>          <artifactId>neethi</artifactId>          <version>3.0.2</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.woden/woden-api -->      <dependency>          <groupId>org.apache.woden</groupId>          <artifactId>woden-api</artifactId>          <version>1.0M9</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.woden/woden-impl-commons -->      <dependency>          <groupId>org.apache.woden</groupId>          <artifactId>woden-impl-commons</artifactId>          <version>1.0M9</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.woden/woden-impl-commons -->      <dependency>          <groupId>org.apache.woden</groupId>          <artifactId>woden-impl-dom</artifactId>          <version>1.0M9</version>      </dependency>      <!-- https://mvnrepository.com/artifact/wsdl4j/wsdl4j -->      <dependency>          <groupId>wsdl4j</groupId>          <artifactId>wsdl4j</artifactId>          <version>1.6.2</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.ws.commons.schema/XmlSchema -->      <dependency>          <groupId>org.apache.ws.commons.schema</groupId>          <artifactId>XmlSchema</artifactId>          <version>1.4.7</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.ws.commons.axiom/axiom-api -->      <dependency>          <groupId>org.apache.ws.commons.axiom</groupId>          <artifactId>axiom-api</artifactId>          <version>1.2.13</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.ws.commons.axiom/axiom-dom -->      <dependency>          <groupId>org.apache.ws.commons.axiom</groupId>          <artifactId>axiom-dom</artifactId>          <version>1.2.13</version>      </dependency>      <!-- https://mvnrepository.com/artifact/org.apache.ws.commons.axiom/axiom-impl -->      <dependency>          <groupId>org.apache.ws.commons.axiom</groupId>          <artifactId>axiom-impl</artifactId>          <version>1.2.13</version>      </dependency>
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这时候分为producer（生产者即服务提供者）,consumer(消费者即服务调用者)

producer配置

定义webservice接口需要在WEB-INF目录下 创建services文件夹并且在services文件夹下的子文件夹（命名自由）目录下创建META-INF目录，

创建 services.xml (服务接口文件)

<?xml version="1.0" encoding="UTF-8"?><service name="ITestWebService">    <description>TestWebService</description>    <parameter name="ServiceClass">com.java.webservice.consumer.ITestWebService</parameter>    <parameter name="ServiceObjectSupplier">org.apache.axis2.extensions.spring.receivers.SpringServletContextObjectSupplier</parameter>    <!-- org.apache.axis2.extensions.spring.receivers.SpringAppContextAwareObjectSupplier      -->    <parameter name="SpringBeanName">testWebService</parameter>    <!--SpringBeanName名字是固定的不能改    testWebService 是spring中注册的实现类的id（这个大家肯定很清楚了）    -->    <!--    <operation name="doTestWebService">        <messageReceiver  mep="http://www.w3.org/2004/08/wsdl/in-out"                          class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" />    </operation>    -->    <messageReceivers>        <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-only" class="org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver" />        <messageReceiver  mep="http://www.w3.org/2004/08/wsdl/in-out"  class="org.apache.axis2.rpc.receivers.RPCMessageReceiver"/>    </messageReceivers></service>
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spring配置文件中 配置producer的接口类的实现

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"       xsi:schemaLocation="http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd       http://code.alibabatech.com/schema/dubbo       http://code.alibabatech.com/schema/dubbo/dubbo.xsd">    <!--    <bean id="testWebService" class="com.java.webservice.consumer.impl.TestWebServiceImpl"></bean>    -->    <bean id="testWebServiceTarget" class="com.java.webservice.consumer.impl.TestWebServiceImpl"></bean>    <bean id="testWebService" class="org.springframework.aop.framework.ProxyFactoryBean">        <property name="proxyInterfaces">            <value>com.java.webservice.consumer.ITestWebService</value>        </property>        <property name="proxyTargetClass">            <value>false</value>        </property>        <property name="target">            <ref bean="testWebServiceTarget"/>        </property>    </bean>    <!--    --></beans>
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org.springframework.aop.framework.ProxyFactoryBean这个类基于动态代理代理接口并生成实现类

ITestWebService类 与 实现类 TestWebServiceImpl

package com.java.webservice.consumer;import java.io.Serializable;/** * Created by zhuangjiesen on 2017/1/15. */public interface ITestWebService extends Serializable {    public String doTestWebService(String testParam);}package com.java.webservice.consumer.impl;import com.alibaba.dubbo.config.annotation.Service;import com.java.webservice.consumer.ITestWebService;/** * Created by zhuangjiesen on 2017/1/15. */public class TestWebServiceImpl implements ITestWebService {    public String doTestWebService(String testParam) {        System.out.println(" TestWebServiceImpl ： doTestWebService ！ testParam ： "+testParam);        return "我是庄杰森的 TestWebServiceImpl doTestWebService 方法 ";    }}
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配置成功后启动tomcat，若tomcat启动成功

在浏览器输入

http://localhost:8080/dragsunTomDubboTest/services/ITestWebService?wsdl
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若出现wsdl接口描述则配置成功

接下来就是consumer的配置

maven配置跟 producer 一致

consumer是基于spring mvc 请求调用webservice接口的

    /**     Description: 跳转  webservice 测试   <p>     @author : [e-mail] 庄杰森 2016年4月19日     */    @RequestMapping("/common/indexToWebServiceTest.do")    public String indexToWebServiceTest(HttpServletRequest request,HttpServletResponse response,ModelMap model){        WebServiceProducer webServiceProducer=(WebServiceProducer)BeanHelper.getApplicationContext().getBean("webServiceProducer");        try {            webServiceProducer.invokeTestWebService_doTestWebService();        } catch (Exception e) {            e.printStackTrace();        }        model.addAttribute("title","webservice + axis2 测试！！@!!!");        return "/common/index.html";    }
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webServiceProducer类

package com.java.webservice.producer;import org.apache.axis2.addressing.EndpointReference;import org.apache.axis2.client.Options;import org.apache.axis2.rpc.client.RPCServiceClient;import javax.xml.namespace.QName;/** * Created by zhuangjiesen on 2017/1/15. */public class WebServiceProducer {    public void invokeTestWebService_doTestWebService() throws  Exception {        //call web service by RPC method        RPCServiceClient serviceClient = new RPCServiceClient();        Options options = serviceClient.getOptions();        //specify URL for invoking        //wsdl接口        EndpointReference targetEPR = new EndpointReference("http://localhost:8080/dragsunTomDubboTest/services/ITestWebService?wsdl");        options.setTo(targetEPR);      //参数数组        Object[] opAddEntryArgs = new Object[]{"超人--庄杰森!!  "};        //返回值        Class[] classes = new Class[]{String.class};        //wsdl接口中 targetNamespace 与方法名        QName opAddEntry = new QName("http://consumer.webservice.java.com","doTestWebService");        //opAddEntry.equals(objectToTest);        Object[] objs=serviceClient.invokeBlocking(opAddEntry, opAddEntryArgs, classes);        System.out.println("  WebServiceProducer !!! doTestWebService :  "+objs[0]);    }}
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接着两个服务器都跑起来，然后调用即可