Tomcat发布Web Service

1.下载jax-ws依赖包

因tomcat没有jax-ws所需的依赖环境，所以第一步先下载Jax-ws RI，即jax-ws reference implemantation, 地址：http://jax-ws.java.net。

2.安装jax-ws RI到tomcat服务器

先下载ant与tomcat,设置环境变量ANT_HOME与CATALINA_HOME，然后在path下引入各自的bin目录打开命令提示符，在jax-ws ri包的目录下运行ant install。

此命令会直接把需要的包导入到${tomcat}\shared\lib目录下，其实也就是把jaxws RI lib下的包复制到了tomcat安装目录下shared\lib里面。

3.设置Eclipse中的tomcat

由于eclipse是自己定义的tomcat配置文件，所以需要加些东西，把shared\lib加入进来，打开ctalina.properties文件。

打开后为(节选)：

# Licensed to the Apache Software Foundation (ASF) under one or more  
# contributor license agreements.  See the NOTICE file distributed with  
# this work for additional information regarding copyright ownership.  
# The ASF licenses this file to You under the Apache License, Version 2.0  
# (the "License"); you may not use this file except in compliance with  
# the License.  You may obtain a copy of the License at  
#  
#     http://www.apache.org/licenses/LICENSE-2.0  
#  
# Unless required by applicable law or agreed to in writing, software  
# distributed under the License is distributed on an "AS IS" BASIS,  
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
# See the License for the specific language governing permissions and  
# limitations under the License.  
  
#  
# List of comma-separated packages that start with or equal this string  
# will cause a security exception to be thrown when  
# passed to checkPackageAccess unless the  
# corresponding RuntimePermission ("accessClassInPackage."+package) has  
# been granted.  
package.access=sun.,org.apache.catalina.,org.apache.coyote.,org.apache.tomcat.,org.apache.jasper.  
#  
# List of comma-separated packages that start with or equal this string  
# will cause a security exception to be thrown when  
# passed to checkPackageDefinition unless the  
# corresponding RuntimePermission ("defineClassInPackage."+package) has  
# been granted.  
#  
# by default, no packages are restricted for definition, and none of  
# the class loaders supplied with the JDK call checkPackageDefinition.  
#  
package.definition=sun.,java.,org.apache.catalina.,org.apache.coyote.,org.apache.tomcat.,org.apache.jasper.    
#  
#  
# List of comma-separated paths defining the contents of the "common"  
# classloader. Prefixes should be used to define what is the repository type.  
# Path may be relative to the CATALINA_HOME or CATALINA_BASE path or absolute.  
# If left as blank,the JVM system loader will be used as Catalina's "common"  
# loader.  
# Examples:  
#     "foo": Add this folder as a class repository  
#     "foo/*.jar": Add all the JARs of the specified folder as class  
#                  repositories  
#     "foo/bar.jar": Add bar.jar as a class repository  
common.loader=${catalina.home}/shared/lib/*.jar,${catalina.home}/shared/lib,${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar  

找到common.loader配置项增加${catalina.home}/shared/lib/*.jar,${catalina.home}/shared/lib 这两个路径即可

4.建立项目

新建一个web项目，webservice_web

HelloService.java是提供web service的一个接口，代码如下：

package com.zxuqian.webservice;  
import javax.jws.WebMethod;  
import javax.jws.WebService;    
@WebService  
public interface HelloService {         
      @WebMethod  
     String greetings (String name);    
}  

HelloServiceImpl.java是实现类，代码如下：

package com.zxuqian.webservice.impl;   
import javax.jws.WebService;   
import com.zxuqian.webservice.HelloService;   
@WebService (endpointInterface = "com.zxuqian.webservice.HelloService" )  
public class HelloServiceImpl implements HelloService {    
      @Override  
      public String greetings(String name) {  
            return "Hello: " + name;  
     }    
}  

5.添加sun-jaxws.xml

sun-jaxws.xml是通过web方式发布web service应用的描述文件，内容如下：

<?xml version="1.0" encoding="UTF-8"?>  
<endpoints xmlns="http://java.sun.com/xml/ns/jax-ws/ri/runtime" version="2.0">  
    <endpoint name="HelloWorld" implementation="com.zxuqian.webservice.impl.HelloServiceImpl"   
        url-pattern="/hello" />  
</endpoints>  

各个节点的具体说明请参考下载的jaxws ri包里面的docs文档，在这里简单说明一下，endpoint需要指定

web service服务的接口和实现类，以及它的url相对路径

6.配置web.xml

内容如下：

<?xml version="1.0" encoding="UTF-8"?>  
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  
  <display-name>webservice_web</display-name>      
  <listener>  
    <listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class>  
  </listener>  
  <servlet>  
    <servlet-name>hello</servlet-name>  
    <servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class>  
    <load-on-startup>1</load-on-startup>  
  </servlet>      
  <servlet-mapping>  
    <servlet-name>hello</servlet-name>  
    <url-pattern>/hello</url-pattern>  
  </servlet-mapping>  
</web-app>  

7.测试

启动tomcat，在浏览器中输入web service地址 http://localhost:8088/webservice_web/hello我的tomcat的端口号是8088，大家根据自己的端口号进行相应的修改。