SpringBoot3特性——错误信息Problemdetails

Spring Framework 6 实现了 HTTP API 规范 RFC 7807 的问题详细信息。 在本文中，我们将学习如何在 SpringBoot 3 REST API（使用 Spring Framework 6）中处理异常，并使用 ProblemDetails API 提供错误响应。

详见
https://www.sivalabs.in/spring-boot-3-error-reporting-using-problem-details/

源码

WebMvcAutoConfiguration定义了错误处理的类

@Configuration(proxyBeanMethods = false)
//配置过一个属性 spring.mvc.problemdetails.enabled=true
@ConditionalOnProperty(prefix = "spring.mvc.problemdetails", name = "enabled", havingValue = "true")
static class ProblemDetailsErrorHandlingConfiguration {

    @Bean
    @ConditionalOnMissingBean(ResponseEntityExceptionHandler.class)
    ProblemDetailsExceptionHandler problemDetailsExceptionHandler() {
        return new ProblemDetailsExceptionHandler();
    }

}

ProblemDetailsExceptionHandler.java继承自ResponseEntityExceptionHandler,是一个 @ControllerAdvice集中处理系统异常

@ControllerAdvice
class ProblemDetailsExceptionHandler extends ResponseEntityExceptionHandler {

}

ResponseEntityExceptionHandler中可以处理以下异常。如果系统出现以下异常，会被SpringBoot支持以 RFC 7807规范方式返回错误数据。

	@ExceptionHandler({
			HttpRequestMethodNotSupportedException.class, //请求方式不支持
			HttpMediaTypeNotSupportedException.class,
			HttpMediaTypeNotAcceptableException.class,
			MissingPathVariableException.class,
			MissingServletRequestParameterException.class,
			MissingServletRequestPartException.class,
			ServletRequestBindingException.class,
			MethodArgumentNotValidException.class,
			NoHandlerFoundException.class,
			AsyncRequestTimeoutException.class,
			ErrorResponseException.class,
			ConversionNotSupportedException.class,
			TypeMismatchException.class,
			HttpMessageNotReadableException.class,
			HttpMessageNotWritableException.class,
			BindException.class
		})

开启RFC 7807问题详细信息支持

spring:
  mvc:
    problemdetails: # 是否启用RFC 7807问题详细信息支持 , 默认为false
      enabled: true

默认不开启时错误响应

响应头

Content-Type:application/json

{
    "timestamp": "2023-10-30T02:46:20.334+00:00",
    "status": 405,
    "error": "Method Not Allowed",
    "trace": "org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' is not supported\r\n\tat org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:265)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:441)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:382)\r\n\tat org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.getHandlerInternal(RequestMappingInfoHandlerMapping.java:126)\r\n\tat org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.getHandlerInternal(RequestMappingInfoHandlerMapping.java:68)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:505)\r\n\tat org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1275)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974)\r\n\tat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011)\r\n\tat org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914)\r\n\tat jakarta.servlet.http.HttpServlet.service(HttpServlet.java:590)\r\n\tat org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)\r\n\tat jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)\r\n\tat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)\r\n\tat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)\r\n\tat org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)\r\n\tat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)\r\n\tat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)\r\n\tat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)\r\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)\r\n\tat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)\r\n\tat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)\r\n\tat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)\r\n\tat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:340)\r\n\tat org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)\r\n\tat org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)\r\n\tat org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)\r\n\tat org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744)\r\n\tat org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)\r\n\tat org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)\r\n\tat org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)\r\n\tat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\r\n\tat java.base/java.lang.Thread.run(Thread.java:833)\r\n",
    "message": "Method 'POST' is not supported.",
    "path": "/person"
}

开启后错误响应

响应头

Content-Type:application/problem+json

{
    "type": "about:blank",
    "title": "Method Not Allowed",
    "status": 405,
    "detail": "Method 'POST' is not supported.",
    "instance": "/person"
}

没时间进行研究，更多详见
https://www.sivalabs.in/spring-boot-3-error-reporting-using-problem-details/

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