java - 如何在Grails 3中捕获 “org.springframework.web.multipart.MultipartException”

Question

我很难捕捉到该错误:org.springframework.web.multipart.MultipartException我有以下代码:

final class UploadTextCommand  {
   MultipartFile contents
   static constraints = {
   }
}

另外，要处理文件的发布，我需要执行以下操作:

def upload = { UploadTextCommand -> 
   ...code...
}

我在“application.yml”文件中设置了以下设置以强制执行错误:

controllers:
    upload:
        maxFileSize: 100
        maxRequestSize: 100

因此，我可以可靠地重新创建异常，但是在浏览器显示出可怕的 View 之前，我无法捕获到该异常:

HTTP Status 500 - Request processing failed; 
nested exception is org.springframework.web.multipart.MultipartException

请告诉我如何在Grails中捕获此错误。仅在上载操作中使用try / catch会失败。
根据评论者的要求添加了堆栈跟踪:

javax.servlet.ServletException: org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (318635) exceeds the configured maximum (100000)
grails.plugin.cache.web.filter.AbstractFilter.logThrowable(AbstractFilter.java:116)
grails.plugin.cache.web.filter.AbstractFilter.doFilter(AbstractFilter.java:70)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:73)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)
org.springframework.boot.context.web.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:188)
org.springframework.boot.context.web.ErrorPageFilter.handleException(ErrorPageFilter.java:171)
org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:135)
org.springframework.boot.context.web.ErrorPageFilter.access$000(ErrorPageFilter.java:61)
org.springframework.boot.context.web.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:95)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)

Answer 1

您可以在堆栈跟踪中找到:

the request was rejected because its size (318635) exceeds the configured maximum (100000)

并在您的代码中:

controllers:
    upload:
        maxFileSize: 100
        maxRequestSize: 100

您应该超过 maxFileSize，但如果要处理异常 check this solution。恕我直言，更清洁的解决方案将是您自己的 before filter或 interceptor的实现。