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SSM项目中整合WebService

發布時間：2023/12/10 编程问答 21 豆豆

生活随笔收集整理的這篇文章主要介紹了 SSM项目中整合WebService 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

　　先了解一下WebService的一些相關術語吧：

WebService：
WebService是一種跨編程語言和跨操作系統平臺的遠程調用技術。

WSDL(web service definition language)：
WSDL是webservice定義語言, 對應.wsdl文檔, 一個webservice會對應一個唯一的wsdl文檔, 定義了客戶端與服務端發送請求和響應的數據格式和過程

SOAP(simple object access protocal)：
SOAP是"簡單對象訪問協議"
是一種簡單的、基于HTTP和XML的協議, 用于在WEB上交換結構化的數據
soap消息：請求消息和響應消息

SEI(WebService EndPoint Interface)：
SEI是web service的終端接口，就是WebService服務器端用來處理請求的接口

CXF(Celtix + XFire)：
一個apache的用于開發webservice服務器端和客戶端的框架。

本次采用的就是CXF框架來整合，

首先引入相關的pom包：

<dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-frontend-jaxws</artifactId><version>${cxf.version}</version></dependency><dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-transports-http</artifactId><version>${cxf.version}</version></dependency>

　　由于版本的沖突，我將spring的版本調了，并且由于cglib包中的asm包和cxf框架中的asm包有沖突，我做了以下更改：

<spring.version>4.1.9.RELEASE</spring.version>

<dependency><groupId>cglib</groupId><artifactId>cglib</artifactId><version>3.2.5</version><exclusions><exclusion><groupId>org.ow2.asm</groupId><artifactId>asm</artifactId></exclusion></exclusions></dependency>

　　2. 接著引入spring-context-webservice.xml和cxf-config.xml:

<?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:cxf="http://cxf.apache.org/core"xmlns:jaxws="http://cxf.apache.org/jaxws"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsdhttp://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd"><import resource="cxf-config.xml"/> </beans>

<?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:jaxws="http://cxf.apache.org/jaxws"xmlns:context="http://www.springframework.org/schema/context"xmlns:jaxrs="http://cxf.apache.org/jaxrs"xsi:schemaLocation="http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsdhttp://cxf.apache.org/jaxrshttp://cxf.apache.org/schemas/jaxrs.xsd"><import resource="classpath*:META-INF/cxf/cxf.xml" /><import resource="classpath*:META-INF/cxf/cxf-extension-soap.xml" /><import resource="classpath*:META-INF/cxf/cxf-servlet.xml" /><jaxws:endpoint id="servicemanWebService" implementor="clack.webserviceImp.ServicemanWebServiceImp" address="/servicemanws" /> </beans>

　　其中<jaxws:endpoint id="servicemanWebService" implementor="clack.webserviceImp.ServicemanWebServiceImp" address="/servicemanws" />

中的設置后續會用到。

3. 更改相應的web.xml加載順序并加入cxf配置（反正是先加載spring，后加載springmvc） <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"><display-name>Archetype Created Web Application</display-name><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-context*.xml</param-value></context-param> <listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><listener><listener-class>org.springframework.web.context.request.RequestContextListener</listener-class></listener><servlet><servlet-name>SpringMVC</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath*:spring-mvc.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>SpringMVC</servlet-name><url-pattern>/</url-pattern></servlet-mapping><servlet><servlet-name>CXFServlet</servlet-name><servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>CXFServlet</servlet-name><url-pattern>/ws/*</url-pattern></servlet-mapping> </web-app>

　　4. 接著添加一個工具類用于調出springmvc中加載的service注解

package clack.utils;import java.util.Enumeration; import javax.servlet.ServletContext;import org.springframework.web.context.ContextLoader; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils;public class ContextUtils {public static WebApplicationContext getSpringMVCContext() {WebApplicationContext rootWac = ContextLoader.getCurrentWebApplicationContext();// 獲取servletContextSystem.out.println(rootWac+"ddddd");ServletContext servletContext = rootWac.getServletContext();// 獲取子容器，名字最后對應servlet名字//1.查看spring容器中的對象名稱String[] beannames = rootWac.getBeanDefinitionNames();for(String beanname:beannames){System.out.println(beanname);}System.out.println(servletContext);//2.查看servlet中容器列表Enumeration<String> servletnames = servletContext.getAttributeNames();while(servletnames.hasMoreElements()){System.out.println(servletnames.nextElement());}WebApplicationContext springmvc = WebApplicationContextUtils.getWebApplicationContext(servletContext,"org.springframework.web.servlet.FrameworkServlet.CONTEXT.SpringMVC");//System.out.println(springmvc+"eee");return springmvc;}}

　　5. 準備工作就緒后就建立webservice接口和webservice實現類：

package clack.webservice;import java.util.List;import javax.jws.WebMethod; import javax.jws.WebService;import clack.entity.Serviceman;@WebService public interface ServicemanWebService {//使用@WebMethod注解標注WebServiceI接口中的方法@WebMethodList<Serviceman> getAllServiceman() throws Exception; }

　　其中使用的 getAllServiceman()方法是本身的service中的方法調用。

package clack.webserviceImp;import java.util.List;import javax.jws.WebService;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component;import clack.entity.Serviceman; import clack.service.ServicemanService; import clack.utils.ContextUtils; import clack.webservice.ServicemanWebService; //endpointInterface 編寫實現接口類名 service name 網絡訪問的名字對應<wsdl:service name="studentws"> @Component("servicemanWebService") @WebService(endpointInterface = "clack.webservice.ServicemanWebService", serviceName = "servicemanws") public class ServicemanWebServiceImp implements ServicemanWebService{@Autowiredprivate ServicemanService servicemanService;public ServicemanService getServicemanService() {return servicemanService;}public void setServicemanService(ServicemanService servicemanService) {this.servicemanService = servicemanService;}@Overridepublic List<Serviceman> getAllServiceman() throws Exception {// TODO Auto-generated method stubservicemanService = (ServicemanService)ContextUtils.getSpringMVCContext().getBean("servicemanService");List<Serviceman> servicemans = servicemanService.getAllServiceman();return servicemans;}}

　　理清其中注解的對應關系后問題不大，

啟動項目，輸入地址：http://localhost:8080/StudyMaven1/ws/servicemanws?wsdl

?測試：

建立一個簡單的maven項目并導入相關的cxf包：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>clack</groupId><artifactId>MyWebService</artifactId><version>0.0.1-SNAPSHOT</version><properties><cxf.version>2.2.3</cxf.version></properties><dependencies><dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-frontend-jaxws</artifactId><version>${cxf.version}</version></dependency><dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-transports-http</artifactId><version>${cxf.version}</version></dependency></dependencies><build><defaultGoal>compile</defaultGoal><finalName>MyWebService</finalName><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.1</version><configuration><source>1.8</source><target>1.8</target><encoding>utf-8</encoding></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>2.6</version><configuration><failOnMissingWebXml>false</failOnMissingWebXml></configuration></plugin></plugins><resources><resource><directory>src/main/java</directory><includes><include>**/*.xml</include></includes></resource><resource><directory>src/main/resources</directory><includes><include>**/*</include></includes></resource></resources></build> </project>

　2. 使用了一個插件生成相關的文件 apache-cxf-3.2.7

3. 將所得的文件拷入maven項目中，并新建一個測試類測試是否能取得數據：

目錄樹如下：

其中WebServiceApp是測試類：

package clack.webserviceimp;import java.net.URL; import java.util.List;import javax.xml.namespace.QName; import javax.xml.ws.Service;import org.apache.cxf.endpoint.Client; import org.apache.cxf.jaxws.endpoint.dynamic.JaxWsDynamicClientFactory;import clack.webservice.Serviceman; import clack.webservice.ServicemanWebService;/*** 通過客戶端編程的方式調用Webservice服務**/ public class WebServiceApp {//1. 自定義方法public void mysoap() throws Exception {// CXF動態客戶端工廠JaxWsDynamicClientFactory dcf = JaxWsDynamicClientFactory.newInstance();// WSDL文檔url配置()String wsdlUrl = "http://localhost:8080/StudyMaven1/ws/servicemanws?wsdl";Object[] objects = null;try {// 獲取CXF客戶端Client client = dcf.createClient(wsdlUrl);// 調用Web Service方法objects = client.invoke("add", 1, 2);} catch (Exception e) {e.printStackTrace();}// 獲取調用結果System.out.println("調用結果：" + objects[0]);System.out.println("=========>");try {// 獲取CXF客戶端Client client = dcf.createClient(wsdlUrl);// 調用Web Service方法objects = client.invoke("sayHello", "World!");} catch (Exception e) {e.printStackTrace();}// 獲取調用結果System.out.println("調用結果：" + objects[0]);}//第二種 client工具生成輔助類需使用apche cxf工具 //步驟 cmd wsdl2java -encoding utf8 http://localhost:8080/StudyMavenSSM/ws/studentws?wsdl//public void clientsoap() throws Exception{// 創建WSDL的URL，注意不是服務地址URL url = new URL("http://localhost:8080/StudyMaven1/ws/servicemanws?wsdl");// 創建服務名稱// 1.namespaceURI - 命名空間地址 (wsdl文檔中的targetNamespace// targetNamespace="http://webserviceImp.gxa/")// 2.localPart - 服務視圖名 (wsdl文檔中服務名稱，例如<wsdl:service name="studentws">)QName qname = new QName("http://webserviceImp.clack/", "servicemanws");// 創建服務視圖// 參數解釋：// 1.wsdlDocumentLocation - wsdl地址// 2.serviceName - 服務名稱Service service = Service.create(url, qname);// 獲取服務實現類// 參數解釋:serviceEndpointInterface - 服務端口(wsdl文檔中服務端口的name屬性，例如<wsdl:port// binding="tns:studentwsSoapBinding" name="StudentWebServiceImpPort">)ServicemanWebService studentWebService =service.getPort(ServicemanWebService.class);//調用查詢方法List<Serviceman> students = studentWebService.getAllServiceman();for(Serviceman serviceman:students){System.out.println(serviceman.getSname());}}public static void main(String[] args) throws Exception {new WebServiceApp().clientsoap();}}

　　4. 最后運行如下，成功調用：

至此，一個簡單的webservice就整合進去了，但是，其中還有很多細節無法言說，學而無涯。

轉載于:https://www.cnblogs.com/clack/p/10001375.html

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