mule esb 异常分类
系统异常出现的两种情况：
<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns:jms="http://www.mulesoft.org/schema/mule/jms"
xmlns:smtp="http://www.mulesoft.org/schema/mule/smtp"
xmlns:file="http://www.mulesoft.org/schema/mule/file"
xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans" version="EE-3.6.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.mulesoft.org/schema/mule/jms http://www.mulesoft.org/schema/mule/jms/current/mule-jms.xsd
http://www.mulesoft.org/schema/mule/smtp http://www.mulesoft.org/schema/mule/smtp/current/mule-smtp.xsd
http://www.mulesoft.org/schema/mule/file http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd">
<!-- Typical Connector for Inbound Endpoint: Read files -->
<file:connector name="input" autoDelete="true" pollingFrequency="1000" fileAge="600000" moveToDirectory="D:\mule\import\backup" moveToPattern="#[message.inboundProperties[‘originalFilename‘]].backup" doc:name="File" />
<!-- Typical Connector for Outbound Endpoint: Write files -->
<file:connector name="output" doc:name="File" />
<catch-exception-strategy name="Catch_Exception_Strategy" >
<logger message=" 文件名： #[message.inboundProperties[‘originalFilename‘]] 在 #[server.dateTime.format("yyyy.MM.dd HH:mm:ss ‘出现异常信息‘ ")] #[exception]" level="INFO" doc:name="Logger"/>
<set-payload value="文件名： #[message.inboundProperties[‘originalFilename‘]] 在 #[server.dateTime.format("yyyy.MM.dd HH:mm:ss ‘出现异常信息‘ ")] #[exception]" doc:name="Set Payload"/>
<smtp:outbound-endpoint host="smtp.mailserver.com" user="host" password="*****" to="test@163.com" from="fromtest@mailserver.com" subject="testfile" responseTimeout="10000" encoding="GB18030" mimeType="text/html" doc:name="SMTP"/>
</catch-exception-strategy>
<configuration defaultExceptionStrategy-ref="Catch_Exception_Strategy" doc:name="Configuration" doc:description="Use as implicit default exception strategy."/>
<flow name="fileimport">
<file:inbound-endpoint connector-ref="input"
path="D:\mule\import\input" doc:name="File" responseTimeout="10000">
<file:filename-wildcard-filter pattern="导出*.doc" />
</file:inbound-endpoint>
<!-- <null-component /> -->
<file:outbound-endpoint connector-ref="output"
path="D:\mule\import\output" doc:name="File" responseTimeout="10000" />
</flow>
</mule>
以上例子测试ok，修改了发邮件部分，当然不能暴漏我的邮件服务器啦
<file:connector name="input" autoDelete="true" pollingFrequency="1000" fileAge="600000" moveToDirectory="D:\mule\import\backup" moveToPattern="#[message.inboundProperties[‘originalFilename‘]].backup" doc:name="File" />
<file:connector name="output" doc:name="File" />以上代码是 file connector inbound 参考这里
<catch-exception-strategy name="Catch_Exception_Strategy" >
<logger message=" 文件名： #[message.inboundProperties[‘originalFilename‘]] 在 #[server.dateTime.format("yyyy.MM.dd HH:mm:ss ‘出现异常信息‘ ")] #[exception]" level="INFO" doc:name="Logger"/>
<set-payload value="文件名： #[message.inboundProperties[‘originalFilename‘]] 在 #[server.dateTime.format("yyyy.MM.dd HH:mm:ss ‘出现异常信息‘ ")] #[exception]" doc:name="Set Payload"/>
<smtp:outbound-endpoint host="smtp.mailserver.com" user="host" password="*****" to="test@163.com" from="fromtest@mailserver.com" subject="testfile" responseTimeout="10000" encoding="GB18030" mimeType="text/html" doc:name="SMTP"/>
</catch-exception-strategy>
<configuration defaultExceptionStrategy-ref="Catch_Exception_Strategy" doc:name="Configuration" doc:description="Use as implicit default exception strategy."/>
以上是对应的异常处理：
<logger message=" 文件名： #[message.inboundProperties[‘originalFilename‘]] 在 #[server.dateTime.format("yyyy.MM.dd HH:mm:ss ‘出现异常信息‘ ")] #[exception]" level="INFO" doc:name="Logger"/>
捕获异常后打印对应的日志信息
<set-payload value="文件名： #[message.inboundProperties[‘originalFilename‘]] 在 #[server.dateTime.format("yyyy.MM.dd HH:mm:ss ‘出现异常信息‘ ")] #[exception]" doc:name="Set Payload"/>
邮件内容信息在 payload中显示，所有赋值payload
<smtp:outbound-endpoint host="smtp.mailserver.com" user="host" password="*****" to="test@163.com" from="fromtest@mailserver.com" subject="testfile" responseTimeout="10000" encoding="GB18030" mimeType="text/html" doc:name="SMTP"/> 发邮件输出异常日志信息
<configuration defaultExceptionStrategy-ref="Catch_Exception_Strategy" doc:name="Configuration" doc:description="Use as implicit default exception strategy."/> 这段非常重要：上面定义的异常策略是为了后期引用，以上代码 指定默认的异常策略为 以上定义的异常：通过名称Catch_Exception_Strategy引用定义异常
以上是个完整的flow例子，一般情况下不会抛出异常，如果我想测试一下，抛出异常后是否会发邮件：
只能手工抛出异常：详细参考这里
添加如上代码
看这个类的实现：
/*
*(c) 2003-2014 MuleSoft, Inc. This software is protected under international copyright
*law. All use of this software is subject to MuleSoft‘s Master Subscription Agreement
*(or other master license agreement) separately entered into in writing between you and
*MuleSoft. If such an agreement is not in place, you may not use the software.
*/
package org.mule.component.simple;
import org.mule.api.MuleEventContext;
import org.mule.api.lifecycle.Callable;
/**
* <code>NullComponent</code> is a service that is used as a placeholder. This
* implementation will throw an exception if a message is received for it.
*/
public class NullComponent implements Callable
{
public Object onCall(MuleEventContext context) throws Exception
{
throw new UnsupportedOperationException("This service cannot receive messages. Service is: "
+ context.getFlowConstruct().getName());
}
}会抛出：UnsupportedOperationException异常
这样就会调用邮件处理输出端发送邮件：
打印异常信息如下：
先简单写到这里，后期再谈 mule esb exception
原文地址：http://blog.csdn.net/topwqp/article/details/46349375
