Spring 实现远程访问详解——webservice

我不是女神ヾ 2022-08-21 06:45 246阅读 0赞

前几章分别介绍了spring rmi,spring httpinvoker,httpclient实现远程访问。本章将通过webserver技术实现spring远程访问。

Spring Web Services 是基于 Spring 框架的 Web 服务框架，主要侧重于基于文档驱动的Web服务，提供 SOAP 服务开发，允许通过多种方式创建 Web 服务。本章利用Apache CXF构建和开发webservice.

# 1.      webservice远程访问流程 #

1)      pom文件引入cxf和wsdl相关包依赖

2)      服务端创建webservice接口

3)      服务端实现webservice接口

4)      服务端配置暴露webservice接口

5)      客户端创建暴露的webservice接口

6)      客户端调用webservice接口

# 2.      Webservice具体实现 #

## 1)      pom文件引入cxf和wsdl相关包依赖 ##

<cxf.version>3.1.6</cxf.version>
     <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-core</artifactId>
               <version>${cxf.version}</version>
     
           </dependency>
           <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-rt-bindings-soap</artifactId>
               <version>${cxf.version}</version>
           </dependency>
     
           <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-rt-databinding-jaxb</artifactId>
               <version>${cxf.version}</version>
           </dependency>
     
           <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-rt-frontend-simple</artifactId>
               <version>${cxf.version}</version>
           </dependency>
     
           <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-rt-transports-http</artifactId>
               <version>${cxf.version}</version>
           </dependency>
           <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-rt-frontend-jaxws</artifactId>
               <version>${cxf.version}</version>
           </dependency>
           <dependency>
               <groupId>org.apache.cxf</groupId>
               <artifactId>cxf-rt-wsdl</artifactId>
               <version>${cxf.version}</version>
           </dependency>
           <dependency>
               <groupId>wsdl4j</groupId>
               <artifactId>wsdl4j</artifactId>
               <version>1.6.3</version>
         </dependency>

## 2)      服务端创建webservice接口 ##

package com.lm.core.service;
     
    importjava.util.List;
     
    importjavax.jws.WebParam;
    importjavax.jws.WebService;
     
    importcom.lm.core.entity.User;
     
    @WebService
    publicinterface UserWsService {
       List<User>getUserByAcount(@WebParam(name="name") Stringname,@WebParam(name="password") String password);
      
       void insert(User user);
    }

## 3)      服务端实现webservice接口 ##

package com.lm.core.service.impl;
     
    import java.util.ArrayList;
    import java.util.List;
     
    import javax.jws.WebService;
     
    import org.springframework.beans.factory.annotation.Autowired;
     
    import com.lm.core.entity.User;
    import com.lm.core.mapper.UserMapper;
    import com.lm.core.service.UserWsService;
     
    @WebService
    public class UserWsServiceImpl implements UserWsService {
     
        @Autowired
        private UserMapper userMapper;
        @Override
        public List<User> getUserByAcount(String name, String password) {
           System.err.println("获取用户信息:" + name + password);
           return new ArrayList<User>();
        }
        @Override
        public void insert(User user) {
           System.err.println("开始插入用户信息:" + user.toString());
        }
     
    }

## 4)      服务端配置暴露webservice接口 ##

配置头信息：

## 5)      服务端web.xml配置 ##

<servlet>
            <servlet-name>CXFService</servlet-name>
            <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
        </servlet>
        <servlet-mapping>
            <servlet-name>CXFService</servlet-name>
            <url-pattern>/webservice/*</url-pattern>
    </servlet-mapping>

6)      服务端运行显示

## 7)      客户端创建暴露的webservice接口 ##

package com.lm.core.service;
     
    import java.util.List;
     
    import javax.jws.WebParam;
    import javax.jws.WebService;
     
    import com.lm.core.entity.User;
     
    @WebService
    public interface UserWsService {
        List<User> getUserByAcount(@WebParam(name="name")String name,@WebParam(name="password")String password);
       
        void insert(User user);
    }

## 8)      客户端配置服务器暴露接口 ##

## 9)      客户端调用webservice接口 ##

@RequestMapping(value = "/wsTest")
        @ResponseBody
        public BaseMapVo wsTest(String name, String password) {
           BaseMapVo vo = new BaseMapVo();
           long startDate = Calendar.getInstance().getTimeInMillis();
           System.out.println("wsTest客户端开始调用" + startDate);
           UserWsService ws = (UserWsService) ApplicationContextUtil.getInstance().getBean("userWsService");
           ws.getUserByAcount("张三", ":张三的密码");
           System.out.println("wsTest客户端调用结束" +  (Calendar.getInstance().getTimeInMillis()-startDate));
           vo.setRslt("sucess");
            return vo;
    }

# 3.      注意异常问题 #

## 1)      服务端和客户端接口和实现需要加入@WebService注解 ##

否则：Exception in thread "main"javax.xml.ws.WebServiceException: Could not find wsdl:binding operation infofor web method

原因是因为客户端的service中的方法没有跟服务端绑定，只需要将客户端的Service接口加上注解@WebService，异常便解决了

## 2)      暴露接口中参数最好加上@WebParam,实现参数命名 ##

否则会导致参数名称不匹配现象。

代码路径:[http://download.csdn.net/detail/a123demi/9495931][http_download.csdn.net_detail_a123demi_9495931]

[http_download.csdn.net_detail_a123demi_9495931]: http://download.csdn.net/detail/a123demi/9495931