[GitHub] willard-kali opened a new issue #1086: 【求助】edge service自定义返回302进行重定向报错

[GitBox <gi...@apache.org>]

willard-kali opened a new issue #1086: 【求助】edge service自定义返回302进行重定向报错
URL: https://github.com/apache/servicecomb-java-chassis/issues/1086
 
 
   应用场景：
   edgeservice作为边缘服务，实现路由到非微服务的https的web服务请求，并在登陆成功后完成重定向到首页。
   实现：
   写了一个dispatcher，匹配/login的请求，在onRequest中，override sendResponse方法，在方法中增加如下代码：
   `context.response().headers().add("Location", "/login.html");
   response.setStatus(Response.create(302, "", "").getStatus());
   super.sendResponse(response);`
   上述方式确实能实现跳转，但是对应到后端日志却报了异常：
   _[ERROR] Failed to execute HttpServerFilters, operation:login-service.login, request uri:/login org.apache.servicecomb.common.rest.AbstractRestInvocation.onExecuteHttpServerFiltersFinish(AbstractRestInvocation.java:296)
   java.lang.ClassCastException: com.test.porter.user.entity.UserInfo cannot be cast to org.apache.servicecomb.swagger.invocation.exception.InvocationException
   	at org.apache.servicecomb.common.rest.filter.inner.ServerRestArgsFilter.beforeSendResponseAsync(ServerRestArgsFilter.java:72)
   	at org.apache.servicecomb.common.rest.filter.HttpServerFilterBeforeSendResponseExecutor.safeInvoke(HttpServerFilterBeforeSendResponseExecutor.java:52)
   	at org.apache.servicecomb.common.rest.filter.HttpServerFilterBeforeSendResponseExecutor.doRun(HttpServerFilterBeforeSendResponseExecutor.java:74)
   	at org.apache.servicecomb.common.rest.filter.HttpServerFilterBeforeSendResponseExecutor.run(HttpServerFilterBeforeSendResponseExecutor.java:44)
   	at org.apache.servicecomb.common.rest.AbstractRestInvocation.executeHttpServerFilters(AbstractRestInvocation.java:284)
   	at org.apache.servicecomb.common.rest.AbstractRestInvocation.sendResponse(AbstractRestInvocation.java:278)_
   查看了ServerRestArgsFilter.java:72，发现源码中，针对response会做检查，判断如果非2XX的响应码，会强制转换成InvocationException用来获取错误信息。
   针对我这种场景，这个情况算不算是一个BUG？是否有其他推荐用法？

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