【发布时间】:2016-03-22 23:40:18
【问题描述】:
我遇到了与 this question 中相同的问题,使用 Spring Boot 1.3.0 并且没有使用 @RestController 注释我的控制器,只是 @Path 和 @Service。正如该问题中的 OP 所说,
对我来说,这绝不是明智的
我也无法理解他们为什么要将它重定向到 /error。而且我很可能遗漏了什么,因为我只能将 404 或 200 还给客户。
我的问题是他的解决方案似乎不适用于 1.3.0,所以我有以下请求流程:假设我的代码抛出了 NullPointerException。它将由我的ExceptionMappers 之一处理
@Provider
public class GeneralExceptionMapper implements ExceptionMapper<Throwable> {
private static final Logger LOGGER = LoggerFactory.getLogger(GeneralExceptionMapper.class);
@Override
public Response toResponse(Throwable exception) {
LOGGER.error(exception.getLocalizedMessage());
return Response.status(Response.Status.INTERNAL_SERVER_ERROR).build();
}
}
我的代码返回 500,但它没有将其发送回客户端,而是尝试将其重定向到 /error。如果我没有其他资源,它会发回 404。
2015-12-16 18:33:21.268 INFO 9708 --- [nio-8080-exec-1] o.glassfish.jersey.filter.LoggingFilter : 1 * Server has received a request on thread http-nio-8080-exec-1
1 > GET http://localhost:8080/nullpointerexception
1 > accept: */*
1 > host: localhost:8080
1 > user-agent: curl/7.45.0
2015-12-16 18:33:29.492 INFO 9708 --- [nio-8080-exec-1] o.glassfish.jersey.filter.LoggingFilter : 1 * Server responded with a response on thread http-nio-8080-exec-1
1 < 500
2015-12-16 18:33:29.540 INFO 9708 --- [nio-8080-exec-1] o.glassfish.jersey.filter.LoggingFilter : 2 * Server has received a request on thread http-nio-8080-exec-1
2 > GET http://localhost:8080/error
2 > accept: */*
2 > host: localhost:8080
2 > user-agent: curl/7.45.0
2015-12-16 18:33:37.249 INFO 9708 --- [nio-8080-exec-1] o.glassfish.jersey.filter.LoggingFilter : 2 * Server responded with a response on thread http-nio-8080-exec-1
2 < 404
和客户端(卷曲):
$ curl -v http://localhost:8080/nullpointerexception
* STATE: INIT => CONNECT handle 0x6000572d0; line 1090 (connection #-5000)
* Added connection 0. The cache now contains 1 members
* Trying ::1...
* STATE: CONNECT => WAITCONNECT handle 0x6000572d0; line 1143 (connection #0)
* Connected to localhost (::1) port 8080 (#0)
* STATE: WAITCONNECT => SENDPROTOCONNECT handle 0x6000572d0; line 1240 (connection #0)
* STATE: SENDPROTOCONNECT => DO handle 0x6000572d0; line 1258 (connection #0)
> GET /nullpointerexception HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.45.0
> Accept: */*
>
* STATE: DO => DO_DONE handle 0x6000572d0; line 1337 (connection #0)
* STATE: DO_DONE => WAITPERFORM handle 0x6000572d0; line 1464 (connection #0)
* STATE: WAITPERFORM => PERFORM handle 0x6000572d0; line 1474 (connection #0)
* HTTP 1.1 or later with persistent connection, pipelining supported
< HTTP/1.1 404 Not Found
* Server Apache-Coyote/1.1 is not blacklisted
< Server: Apache-Coyote/1.1
< Content-Length: 0
< Date: Wed, 16 Dec 2015 17:33:37 GMT
<
* STATE: PERFORM => DONE handle 0x6000572d0; line 1632 (connection #0)
* Curl_done
* Connection #0 to host localhost left intact
所以它总是 404。除非我确实有这样的 /error 资源,否则怎么办?我应该返回什么?那时我所拥有的只是对 /error 的 GET 请求。而且我不希望那些额外的请求消耗资源并污染我的日志。
我错过了什么?如果没有,我应该如何处理我的异常?
【问题讨论】:
标签: java spring-boot jersey jax-rs jersey-2.0