在Web服务的错误处理 [英] Error handling in web service

问题描述

你如何传达一个错误的Web服务的消费者？

How do you communicate an error to the web service consumer ?

例如，我的web服务具有以下功能：插入到员工，而db.Suppose插入数据，数据库给了一个错误，我应该是通知用户有关错误的最好方式。

For example, my web service has a function to insert employee into db.Suppose while inserting the data , the database gave an error,what should be the best way to inform the user about the error.

一种方法是描绘它通过Web服务方法的返回值，但什么时候该函数应该返回像员工一个复杂的对象时没有错误做的，当有一个将发送一个错误字符串错误？

One way is to depict it through the return value of the web service method but what to do when the function is supposed to return a complex object like employee when there is no error ,and will send an error string when there is an error ?

推荐答案

对于SOAP：这就是故障用于

For SOAP: That is what faults are used for

SOAP错误被用来携带在SOAP消息中的错误信息。该故障是SOAP什么异常是一种编程语言。

SOAP faults are used to carry error information within a SOAP message. The fault is for SOAP what an exception is for a programming language.

当您的客户端的请求成功，您发回的员工结构，当它失败了，你发回一个挑剔的的什么地方出了错细节。

When your client's request succeeds, you send back a valid response with the Employee structure, when it fails, you send back a fault with details of what went wrong.

休息：使用 HTTP错误codeS

For REST: Use HTTP Error Codes

与SOAP，REST Web服务没有一个约定返回错误，但最简单的就是使用的这个大家都明白。

Unlike SOAP, REST web services do not have a convention for returning errors but the simplest is to use the ones everybody understands.

例如，当一些数据库等上happend你可能会发送一个HTTP 404的记录丢失时没有找到，一个HTTP 500服务器错误，并返回HTTP 200 OK与你的结果时，一切都很好，很正常。

For example you might send a HTTP 404 Not Found when a record is missing, a HTTP 500 Server Error when something happend on the database etc, and return HTTP 200 OK with your result when everything is fine and dandy.

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