接着上面看官方的示例
消息中介示例
1，本地注册项，可重复使用的端点和序列
<!-- Local Registry entry definitions, reusable endpoints and sequences -->
<definitions xmlns="http://ws.apache.org/ns/synapse"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://ws.apache.org/ns/synapse http://synapse.apache.org/ns/2010/04/configuration/synapse_config.xsd">
<!-- define a string resource entry to the local registry -->
<localEntry key="version">0.1</localEntry>
<!-- define a reuseable endpoint definition -->
<endpoint name="simple">
<address uri="http://localhost:9000/services/SimpleStockQuoteService"/>
</endpoint>
<!-- define a reusable sequence -->
<sequence name="stockquote">
<!-- log the message using the custom log level. illustrates custom properties for log -->
<log level="custom">
<property name="Text" value="Sending quote request"/>
<property name="version" expression="get-property('version')"/>
<property name="direction" expression="get-property('direction')"/>
</log>
<!-- send message to real endpoint referenced by key "simple" endpoint definition -->
<send>
<endpoint key="simple"/>
</send>
</sequence>
<sequence name="main">
<in>
<property name="direction" value="incoming"/>
<sequence key="stockquote"/>
</in>
<out>
<send/>
</out>
</sequence>
</definitions>
客户端执行
ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/
可以看到输出的结果
Standard :: Stock price = $80.1611906447455
过程是先进入main然后直接进入可重用序列stockqnote，最后将请求的信息发送到http://localhost:9000/services/SimpleStockQuoteService
使用http://localhost:9000/services/SimpleStockQuoteService?wsdl可以看到显示的结果
2，错误处理
<definitions xmlns="http://ws.apache.org/ns/synapse"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://ws.apache.org/ns/synapse http://synapse.apache.org/ns/2010/04/configuration/synapse_config.xsd">
<!-- the default fault handling sequence used by Synapse - named 'fault' -->
<sequence name="fault">
<log level="custom">
<property name="text" value="An unexpected error occured"/>
<property name="message" expression="get-property('ERROR_MESSAGE')"/>
</log>
<drop/>
</sequence>
<sequence name="sunErrorHandler">
<log level="custom">
<property name="text" value="An unexpected error occured for stock SUN"/>
<property name="message" expression="get-property('ERROR_MESSAGE')"/>
<!--<property name="detail" expression="get-property('ERROR_DETAIL')"/>-->
</log>
<drop/>
</sequence>
<sequence name="main">
<in>
<switch xmlns:m0="http://services.samples" source="//m0:getQuote/m0:request/m0:symbol">
<case regex="IBM">
<send>
<endpoint>
<address uri="http://localhost:9000/services/SimpleStockQuoteService"/>
</endpoint>
</send>
</case>
<case regex="MSFT">
<send>
<endpoint key="bogus"/>
</send>
</case>
<case regex="SUN">
<sequence key="sunSequence"/>
</case>
</switch>
<drop/>
</in>
<out>
<send/>
</out>
</sequence>
<sequence name="sunSequence" onError="sunErrorHandler">
<send>
<endpoint key="sunPort"/>
</send>
</sequence>
</definitions>
客户端执行
ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/ -Dsymbol=MSFT
执行查询MSFT的股价，因为没有对应的端点查找最接近的错误处理，服务端看到提示
INFO LogMediator text = An unexpected error occured, message = Couldn't find the endpoint with the key : bogus
执行查看sun的股价
ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/ -Dsymbol=SUN
最后打印出信息
INFO LogMediator text = An unexpected error occured for stock SUN, message = Couldn't find the endpoint with the key : sunPort
这个是在sunSeqence这个序列里执行的。
3，创建错误的SOAP信息并且变化消息的方向
<!-- Creating SOAP fault messages and changing the direction of a message -->
<definitions xmlns="http://ws.apache.org/ns/synapse"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://ws.apache.org/ns/synapse http://synapse.apache.org/ns/2010/04/configuration/synapse_config.xsd">
<sequence name="myFaultHandler">
<makefault response="true">
<code xmlns:tns="http://www.w3.org/2003/05/soap-envelope" value="tns:Receiver"/>
<reason expression="get-property('ERROR_MESSAGE')"/>
</makefault>
<send/>
</sequence>
<sequence name="main" onError="myFaultHandler">
<in>
<switch xmlns:m0="http://services.samples" source="//m0:getQuote/m0:request/m0:symbol">
<case regex="MSFT">
<send>
<endpoint>
<address uri="http://bogus:9000/services/NonExistentStockQuoteService"/>
</endpoint>
</send>
</case>
<case regex="SUN">
<send>
<endpoint>
<address uri="http://localhost:9009/services/NonExistentStockQuoteService"/>
</endpoint>
</send>
</case>
</switch>
<drop/>
</in>
<out>
<send/>
</out>
</sequence>
</definitions>
客户端调用
ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/ -Dsymbol=MSFT
返回
<soapenv:Fault xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><faultcode>soapenv:Client</faultcode> <faultstring>java.net.UnknownHostException: bogus</faultstring><detail /></soapenv:Fault>
执行
ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/ -Dsymbol=SUN
返回
<soapenv:Fault xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><faultcode>soapenv:Client</faultcode> <faultstring>java.net.ConnectException: Connection refused</faultstring><detail /></soapenv:Fault>
4，操纵SOAP协议头，修改传入或传出的消息
<!-- Manipulating SOAP headers, and filtering incoming and outgoing messages -->
<definitions xmlns="http://ws.apache.org/ns/synapse"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://ws.apache.org/ns/synapse http://synapse.apache.org/ns/2010/04/configuration/synapse_config.xsd">
<sequence name="main">
<in>
<header name="To" value="http://localhost:9000/services/SimpleStockQuoteService"/>
</in>
<send/>
</sequence>
</definitions>
修改协议头
客户端调用
ant stockquote -Dtrpurl=http://localhost:8280/
直接指向
http://localhost:9000/services/SimpleStockQuoteService
