使用EJB2.1无状态会话Bean作为Web服务端点

Set J2EE_HOME=J2EE安装目录
Set CLASSPATH =%CLASSPATH%;%J2EE_HOME%\\lib\\j2ee.jar;.
Set Path =%Path%;%J2EE_HOME%\\bin;.

+EncryptionService
    +META-INF(application.xml；sun-j2ee-ri.xml )
    +ejb
       +META-INF（ejb-jar.xml； webservices.xml；mapping.xml）
       -*.java文件（EJB相关的类）
       -config.xml

package com.hellking.webservice.ejb;
import java.rmi.RemoteException;
import java.rmi.Remote;
/**
 *Web服务接口，定义了两个方法。
 */
public interface EncryptionService extends Remote
{
    /**
     *用户对数据加密。
     */
    public String encrypt (String source) throws RemoteException;  
    /**
     *用于对数据解密。
     */
    public String decrypt (String source) throws RemoteException;  
    
}

package com.hellking.webservice.ejb;
import java.rmi.RemoteException;
import javax.ejb.*;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.*;
/**
 *实现Web服务接口的无状态会话Bean
 */
public class EncryptionServiceEJB implements SessionBean
{   
   
    /**
     *以下是EJB的例行方法
     */
    public void ejbCreate    ()  
    {
    }
    public void ejbRemove    ()  
    {     }
        
    public void ejbActivate    ()  
    {     }
   
    public void ejbPassivate    ()  
    {     }
        
    public void setSessionContext    (SessionContext sc)  
    {     }    
    
    /**
     *业务方法：对输入数据进行加密后返回。
     */
    public String encrypt (String source)
    {     
        //这里只是一个示例，没有进行实现，只是简单的把输入的字符串进行反转。
        StringBuffer ret=new StringBuffer();
        for(int i=source.length()-1;i>-1;i--)
        {
         ret.append(source.charAt(i));
        }
        return ret.toString();
 
    }
    
    /**
     *业务方法：对输入的数据进行解密后返回。
     */
    public String decrypt (String source)
    {
     return encrypt(source);    
    } 
   }

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar version="2.1" 
xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
  <display-name>EncryptionServiceEJB</display-name>
  <enterprise-beans>
    <session>
      <display-name>EncryptionServiceEJB</display-name>
      <ejb-name>EncryptionServiceEJB</ejb-name>
      <service-endpoint>com.hellking.webservice.ejb.EncryptionService</service-endpoint>
      <ejb-class>com.hellking.webservice.ejb.EncryptionServiceEJB</ejb-class>
      <session-type>Stateless</session-type>
      <transaction-type>Container</transaction-type>
      <security-identity>
        <use-caller-identity/>
      </security-identity>
    </session> 
 
  </enterprise-beans>
  <assembly-descriptor>
  …
</ejb-jar>

<?xml version="1.0" encoding="UTF-8"?>
<configuration 
  xmlns="http://java.sun.com/xml/ns/jax-rpc/ri/config">
  <service 
      name="MyEncryptionService" 
      targetNamespace="urn:Encryption" 
      typeNamespace="urn:Encryption" 
      packageName="encryptionservice">
      <interface name="com.hellking.webservice.ejb.EncryptionService"/>
  </service>
</configuration>

c:\\ EncryptionService\\ejb \\>wscompile -define -d . -nd . -classpath . config.xml

<?xml version="1.0" encoding="UTF-8"?>
<definitions name="MyEncryptionService" targetNamespace="urn:Encryption"
 xmlns:tns="urn:Encryption" xmlns="http://schemas.xmlsoap.org/wsdl/"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
  <types/>
  <message name="EncryptionService_decrypt">
…
<service name="MyEncryptionService">
    <port name="EncryptionServicePort" binding="tns:EncryptionServiceBinding">
      <soap:address location="REPLACE_WITH_ACTUAL_URL"/>
</port></service></definitions>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE java-wsdl-mapping PUBLIC
    "-//IBM Corporation, Inc.//DTD J2EE JAX-RPC mapping 1.0//EN"
    "http://www.ibm.com/standards/xml/webservices/j2ee/j2ee_jaxrpc_mapping_1_0.dtd">
<java-wsdl-mapping>
    <package-mapping>
        <package-type>Encryptionservice</package-type>
        <namespaceURI>urn:Encryption</namespaceURI>
    </package-mapping>
</java-wsdl-mapping>

<!DOCTYPE webservices PUBLIC "-//IBM Corporation, Inc.//DTD J2EE Web services 1.0//EN"
"http://www.ibm.com/standards/xml/webservices/j2ee/j2ee_web_services_1_0.dtd">
<webservices>
  <description>desc</description>
  <webservice-description>
    <webservice-description-name>EncryptionServiceEJB</webservice-description-name>
    <wsdl-file>META-INF/MyEncryptionService.wsdl</wsdl-file>
    <jaxrpc-mapping-file>META-INF/mapping.xml</jaxrpc-mapping-file>
    <port-component>
      <description>port component description</description>
      <port-component-name>EncryptionServicePort</port-component-name>
      <wsdl-port>
        <namespaceURI>urn:Encryption</namespaceURI>
        <localpart>EncryptionServicePort</localpart>
      </wsdl-port>
      <service-endpoint-interface>com.hellking.webservice.ejb.EncryptionService
      </service-endpoint-interface>
      <service-impl-bean>
        <ejb-link>EncryptionServiceEJB</ejb-link>
      </service-impl-bean>
    </port-component>
  </webservice-description>
</webservices>

c:\\ EncryptionService\\ejb\\>jar cvf ejb.jar com META-INF

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application PUBLIC '-//Sun Microsystems, 
	Inc.//DTD J2EE Application 1.3//EN' 
	'http://java.sun.com/dtd/application_1_3.dtd'>
<application>
  <display-name>EncryptionServiceApp</display-name>
  <description>Application description</description>
  <module>
    <ejb>ejb.jar</ejb>
  </module>
</application>

c:\\ EncryptionService\\ejb\\>copy ejb.jar ../
c:\\ EncryptionService\\ejb\\>cd..
c:\\ EncryptionService\\\\>jar cvf encryptservice.ear ejb.jar META-INF

c:\\ EncryptionService\\>deploytool -deployModule encryptservice.ear

Remote message: Deployment of EncryptionServiceApp is complete..

deploytool -listModules ear

http://127.0.0.1:8000/encryptionservice?WSDL

package com.hellking.webservice;
…//imports
/**
 *Web服务动态代理客户端，需要JAX-RPC运行类库来支持。
 */
public class J2SEClient
{
 public static void main(String[] args) {
        try {
            /**
             *在使用这个方式时调用Web服务时，需要指定以下参数：
             *Web服务调用的地址：urlString；
             *名称空间URI：nameSpaceUri；
             *Web服务的名字：serviceName；
             *服务的Port名字：portName。
             */
            String UrlString = "http://127.0.0.1:8000/encryptionservice?WSDL";
            String nameSpaceUri = "urn:Encryption";
            String serviceName = "MyEncryptionService";
            String portName = "EncryptionServicePort";
            URL encryptWsdlUrl = new URL(UrlString);
            //创建一个ServiceFactory对象。
            ServiceFactory serviceFactory =
                 ServiceFactory.newInstance();
            //通过ServiceFactory对象创建一个调用Web服务的Service对象。
            Service encryptService =
                  serviceFactory.createService(encryptWsdlUrl,
                new QName(nameSpaceUri, serviceName));
            
            //获得服务端点实例。
           com.hellking.webservice.ejb.EncryptionService myProxy = 
               ( com.hellking.webservice.ejb.EncryptionService) encryptService.getPort(
                new QName(nameSpaceUri, portName), 
                 com.hellking.webservice.ejb.EncryptionService.class); 
             //调用Web服务。
            String result=myProxy.encrypt("hello");
            System.out.println("调用Web服务返回的结果："+result);
            String r2=myProxy.decrypt(result);
            System.out.println("调用Web服务返回的结果："+r2);
        } catch (Exception ex) {
            ex.printStackTrace();
        } 
    } 
}