In the policy canvas, as shown in Figure 21, you can define message processing request, response, or error rules.
在策略画布中(如图21所示)，您可以定义消息处理请求、响应或错误规则。
This will occur because of the target System Interfaces inability to understand the message or because the message is causing a processing error within the target System Interface.
这可能是由于目标系统接口无法理解此消息或由于消息导致了目标系统接口内的处理错误而造成的。
This will occur because of the mediators inability to understand the message or because the message is causing a processing error within the mediator.
这可能是由于中介无法理解此消息或由于消息导致了中介内的处理错误而造成的。
It will do some processing and return either a method return message or an error message.
它将完成一些处理并返回一个方法返回消息或者错误消息。
That's where SAX can really help: it allows you to receive possibly bad data or error conditions before the program halts processing and gives you a chance to make course corrections.
这就是SAX的真正用途所在：在程序中断处理过程并进行修复之前，允许接收可能错误的数据或者错误状态。
If a SOAP processing error occurs at the SOAPInput node, it can return a SOAP fault either directly to the sender or to a different endpoint if directed to do so by WS-Addressing.
如果在SOAPInput节点上发生SOAP处理错误，它可以直接向发送者或者向某个不同的端点(如果WS - Addressing指示这样做的话)返回SOAP错误。
Once the user submits this form, the script first checks whether one or more search keywords were entered, and halts script processing with an error message if it finds none.
当用户提交该表单后，脚本首先检查是否输入了一个或多个搜索关键字，如果一个也没有输入，则中断脚本处理并显示一条错误消息。
I prefer to use a controller, because I can use it to fire the model logic, then do some validation processing, and then route the user to an error-handling or result page as appropriate.
我更喜欢使用控制器，因为我可以使用它来触发模型逻辑，然后进行某种验证处理，接着将用户路由到一个相应的错误处理或结果页。
However, whether or not an error occurred in the processing of the message is a whole different story.
但在消息的处理过程中是否发生了错误就完全是另一回事了。
However, whether or not an error occurred in the processing of the message is a whole different story.
但在消息的处理过程中是否发生了错误就完全是另一回事了。
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