java 在 JAX-WS 中抛出自定义异常
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Throwing custom exceptions in JAX-WS
提问by greycat
I have a JAX-WS web service with a web method that may throw an exception.
我有一个 JAX-WS Web 服务，其 Web 方法可能会引发异常。
@WebMethod
public Folder getTree() throws UnauthorizedException {
//...
// Get authorization data..
//...
if (!authorized) {
throw new UnauthorizedException();
}
//...
}
It works all right if user is authorized, but when the exception is thrown it doesn't generate SOAP message with a fault, it just crashes web service with
如果用户获得授权，它可以正常工作，但是当抛出异常时，它不会生成带有错误的 SOAP 消息，它只会使 Web 服务崩溃
SEVERE: Unauthorized
ru.cos.xdoc.storage.UnauthorizedException: Unauthorized
at ru.cos.xdoc.storage.Storage.getTree(Storage.java:136)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...
and closes connection
并关闭连接
HTTP/1.1 500 Internal Server Error
X-Powered-By: Servlet/2.5
Server: Sun GlassFish Enterprise Server v2.1.1
Content-Type: text/xml;charset="utf-8"
Transfer-Encoding: chunked
Date: Mon, 20 Sep 2010 15:43:59 GMT
Connection: close
I feel like I miss something simple
我觉得我错过了一些简单的事情
EDITThe problem has proven to arise only in the case an exception is thrown not long after the beginning of web method. When a delay is introduced before throwing an exception, like
编辑该问题已被证明仅在 Web 方法开始后不久引发异常的情况下才会出现。在抛出异常之前引入延迟时，例如
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
throw new UnauthorizedException();
everything works fine.
一切正常。
Does anybody have a clue what may cause such a strange behaviour?
有没有人知道什么可能导致这种奇怪的行为？
回答by gpeche
Have you mapped your exception to a Fault? See JAX-WS - Map Exceptions to faults
您是否已将异常映射到故障？请参阅JAX-WS - 将异常映射到故障
回答by emas
maybe it would be simpler just to build a message telling "Permission denied", or something like that. In my opinion, a web service should never throw an exception, it should always return a response.
也许构建一条消息告诉“权限被拒绝”或类似的东西会更简单。在我看来，Web 服务不应该抛出异常，它应该始终返回响应。
