JBoss ESB学习笔记8——第七个ESB应用Https Gateway
续上篇介绍了第六个ESB应用，本文介绍第七个ESB应用——Https Gateway。
说明：本文及后续文章虽非百分百的原创，但毕竟包含本人的努力和付出，所以希望大家转载时务请注明出处：http://yarafa.iteye.com，谢谢合作。
1概述
该实例主要演示了两点：一是配置一个https的ESB入口，二是在ESB外部端点中配置http路由器实现https传输方式的调用。
2 新建ESB工程
操作过程略。
3 ESB配置
3.1 创建消息队列
这里将创建一个消息地理用于接收客户端消息，在esbcontent文件夹下创建文件jbm-queue-service.xml用于配置消息队列，内容如下：
<?xml version="1.0" encoding="UTF-8"?> <server> <mbean code="org.jboss.jms.server.destination.QueueService" name="jboss.esb.quickstart.destination:service=Queue,name=httpsgateway" xmbean-dd="xmdesc/Queue-xmbean.xml"> <dependsptional-attribute-name="ServerPeer"> jboss.messaging:service=ServerPeer </depends> <depends>jboss.messaging:service=PostOffice</depends> </mbean> </server>
3.2 定义Provider
这里将创建两个provider，一个提供客户端消息通道，另一个是jbr-provider，下面具体介绍。
3.2.1 jms-provider
<jms-provider connection-factory="ConnectionFactory" name="JMS"> <jms-bus busid="httpsgatewayChanel"> <jms-message-filter dest-name="queue/httpsgateway" dest-type="QUEUE" /> </jms-bus> </jms-provider>
3.2.2 jbr-provider
<jbr-provider host="localhost" name="httpsgateway" protocol="https"> <property name="jbr-KeyStoreURL" value="C:/jbossesb-server-4.7/httpsgateway.keystore" /> <property name="jbr-KeyStorePassword" value="123456" /> <property name="jbr-TrustStoreURL" value="C:/jbossesb-server-4.7/httpsgateway.keystore" /> <property name="jbr-TrustStorePassword" value="123456" /> <property name="jbr-ClientAuthMode" value="need" /> <property name="serviceInvokerTimeout" value="20000" /> <jbr-bus busid="httpsgatewayJBRChanel" port="9433" /> </jbr-provider>
关于jbr-provider的配置如上所示，下面对各个属性做简要说明：
jbr-KeyStoreURL：**库文件的路径，下面会说明如何创建**库文件
jbr-KeyStorePassword：**库文件的密码，在创建**库文件时指定
jbr-TrustStoreURL：受信任的**库文件路径，可与jbr-KeyStoreURL属性值一样
jbr-TrustStorePassword：受信任的**库文件的密码
jbr-ClientAuthMode：客户端验证模式
serviceInvokerTimeout：服务调用时限
httpsgatewayJBRChanel：JBR端口设置
关于各个属性的详细说明，可参考官方文档或者相关API。
3.2.3 keystore制作
**库文件的制作如下图所示，这里使用的是JDK提供的keytool工具。关于如何使用keytool制作**库文件，请自行查找，网上到处都是，这里不再说明。
将制作好的keystore文件命名为httpsgateway.keystore，并保存至C:/jbossesb-server-4.7目录下。
3.2.4 配置属性文件
在esbcontent/ META-INF目录下新建属性文件HttpRouter.properties，其内容如下：
configurators=HttpProtocol protocol-socket-factory=org.apache.commons.httpclient.contrib.ssl.EasySSLProtocolSocketFactory keystore=C:/jbossesb-server-4.7/httpsgateway.keystore keystore-passw=123456 truststore=C:/jbossesb-server-4.7/httpsgateway.keystore truststore-passw=123456 max-connections-per-host=5
3.3定义Action类
3.3.1 Client Action
该类用于打印输出客户端响应的具体内容。
package com.thu.afa.esb.jbossesb.action.client;
import org.jboss.soa.esb.actions.AbstractActionLifecycle;
import org.jboss.soa.esb.helpers.ConfigTree;
import org.jboss.soa.esb.http.HttpHeader;
import org.jboss.soa.esb.http.HttpResponse;
import org.jboss.soa.esb.message.Message;
import java.util.List;
public class HttpResponsePrinter extends AbstractActionLifecycle {
protected ConfigTree configTree;
public HttpResponsePrinter(ConfigTree config) {
this.configTree = config;
}
public Message process(Message message) throws Exception {
HttpResponse httpResponse = (HttpResponse) message.getBody().get(HttpResponse.RESPONSE_KEY);
System.out.println("=========== Client Response: ===================================");
System.out.println("Message Payload:");
System.out.println("\t[" + message.getBody().get() + "]");
System.out.println();
System.out.println("Http Response:");
System.out.println("\tCode: " + httpResponse.getResponseCode());
System.out.println("\tLength: " + httpResponse.getLength());
System.out.println("\tEncoding: " + httpResponse.getEncoding());
System.out.println("\tHeaders:");
List<HttpHeader> headers = httpResponse.getHttpHeaders();
for (HttpHeader header : headers) {
System.out.println("\t\t" + header.getName() + ": " + header.getValue());
}
System.out.println("================================================================");
return message;
}
}
3.3.2 Server Action
该类用于打印输出服务端请求的具体内容。
package com.thu.afa.esb.jbossesb.action.server;
import org.jboss.soa.esb.actions.AbstractActionLifecycle;
import org.jboss.soa.esb.helpers.ConfigTree;
import org.jboss.soa.esb.message.Message;
import org.jboss.soa.esb.message.Properties;
public class HttpRequestPrinter extends AbstractActionLifecycle {
protected ConfigTree configTree;
public HttpRequestPrinter(ConfigTree config) {
this.configTree = config;
}
public Message process(Message message) throws Exception {
Properties properties = message.getProperties();
System.out.println("=========== Server Request: ====================================");
System.out.println("Message Payload:");
System.out.println("\t[" + message.getBody().get() + "]");
System.out.println();
System.out.println("\tHeaders:");
System.out.println("\t\thost: " + properties.getProperty("host"));
System.out.println("\t\tMethod: " + properties.getProperty("MethodType"));
System.out.println("\t\tPath: " + properties.getProperty("Path"));
System.out.println("\t\tuser-agent: " + properties.getProperty("user-agent"));
System.out.println("\t\tcontent-type: " + properties.getProperty("content-type"));
System.out.println("================================================================");
message.getBody().add("Http Response Payload!!");
return message;
}
}
3.4 定义第一个Service
<service category="HttpsService" description="Https Client" invmScope="GLOBAL" name="HttpsClientService"> <listeners> <jms-listener busidref="httpsgatewayChanel" is-gateway="true" name="httpsgatewayListener" /> </listeners> <actions mep="OneWay"> <action name="httprouter" class="org.jboss.soa.esb.actions.routing.http.HttpRouter"> <property name="method" value="POST" /> <property name="responseType" value="STRING" /> <property name="endpointUrl" value="https://localhost:9433/x/y"> <http-client-property name="file" value="/META-INF/HttpRouter-localhost-https-9433.properties" /> </property> <property name="headers"> <header name="name" value="llu" /> </property> </action> <action name="printResponse" class="com.thu.afa.esb.jbossesb.action.client.HttpResponsePrinter" /> </actions> </service>
配置说明：该服务执行了两次操作，首先将接收到的消息执行了一次http转发，然后由HttpResponsePrinter打印请求的内容。
3.5 定义第二个Service
<service category="HttpsService" description="Https Server" invmScope="GLOBAL" name="HttpsServerService"> <listeners> <jbr-listener busidref="httpsgatewayJBRChanel" is-gateway="true" name="httpsgatewayJbsListener" /> </listeners> <actions> <action name="printMessage" process="process" class="com.thu.afa.esb.jbossesb.action.server.HttpRequestPrinter"/> </actions> </service>
配置说明：该服务用语打印输出接收到的消息的内容。
3.6 配置部署文件
部署依赖文件deployment.xml内容如下：
<jbossesb-deployment> <depends>jboss.esb.quickstart.destination:service=Queue,name=httpsgateway </depends> </jbossesb-deployment>
3.7 部署ESB
将整个工程导出成一个ESB文件，并保存至JBoss ESB Server的部署目录下，启动JBoss ESB Server即可。
4 ESB客户端
4.1 新建Java工程
这里略去操作过程以及添加所需要的Jar包，具体操作过程可参考第一个ESB实例说明。
4.2 发送消息的客户端
/***********************************************************************
* <p>Project Name: helloworldclient</p>
* <p>File Name: com.thu.afa.esb.jbossesb.client.HttpsGatewayClient.java</p>
* <p>Copyright: Copyright (c) 2010</p>
* <p>Company: <a href="http://afa.thu.com">http://afa.thu.com</a></p>
***********************************************************************/
package com.thu.afa.esb.jbossesb.client;
import java.util.Properties;
import javax.jms.Message;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueReceiver;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
/**
* <p>Class Name: HttpsGatewayClient</p>
* <p>Description: </p>
* @author Afa
* @date 2010-9-7
* @version 1.0
*/
public class HttpsGatewayClient
{
private QueueConnection connection;
private QueueSession session;
private Queue queue;
public void setupConnection() throws Exception
{
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
properties.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
properties.put(Context.PROVIDER_URL, "jnp://127.0.0.1:1099");
InitialContext context = new InitialContext(properties);
QueueConnectionFactory factory = (QueueConnectionFactory) context.lookup("ConnectionFactory");
connection = factory.createQueueConnection();
queue = (Queue) context.lookup("queue/httpsgateway");
session = connection.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE);
connection.start();
System.out.println("Connection Started");
}
public void stop() throws Exception
{
if(connection != null) connection.stop();
if(session != null) session.close();
if(connection != null) connection.close();
}
public void sendAMessage(String text) throws Exception
{
QueueSender sender = session.createSender(queue);
ObjectMessage message = session.createObjectMessage(text);
sender.send(message);
sender.close();
}
public void receiveMessage() throws Exception
{
QueueReceiver receiver = session.createReceiver(queue);
Message message = receiver.receive();
if(message != null)
{
if(message instanceof ObjectMessage)
{
ObjectMessage objectMessage = (ObjectMessage) message;
System.out.println(objectMessage.getObject().toString());
} else if (message instanceof TextMessage) {
TextMessage textMessage = (TextMessage) message;
System.out.println(textMessage.getText());
}
}
receiver.close();
}
/**
* <p>Title: </p>
* <p>Method Name: main</p>
* <p>Description: </p>
* @author: Afa
* @date: 2010-9-7
* @param args
*/
public static void main(String[] args) throws Exception
{
HttpsGatewayClient client = new HttpsGatewayClient();
client.setupConnection();
client.sendAMessage("Llu, miss you, afa");
client.stop();
}
}
运行客户端，结果如下图所示：
上述便是ESB第七个应用实例。如有问题，欢迎指正。
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AfaMar 5th, 2011-----------------------------------------------------