Tomcat 8 - 最大文件大小

我在我的項目中使用Spring-boot tomcat。Tomcat 8 - 最大文件大小

我有多部分文件上傳，限制設置如下。

@Bean 
    MultipartConfigElement multipartConfigElement() { 
     MultipartConfigFactory factory = new MultipartConfigFactory(); 
     factory.setMaxFileSize("1MB"); 
     factory.setMaxRequestSize("1MB"); 
     return factory.createMultipartConfig(); 
    }

但是，如果用戶正試圖加載超過1 MB的文件，則會引發一些異常。

led; nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (4719402) exceeds the configured maximum (1048576)] with root cause 
org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (4719402) exceeds the configured maximum (1048576) 
     at org.apache.tomcat.util.http.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:811) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.tomcat.util.http.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:256) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:280) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.connector.Request.parseParts(Request.java:2734) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.connector.Request.parseParameters(Request.java:3073) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.connector.Request.getParameter(Request.java:1095) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:380) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:70) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) [tomcat-embed-core-8.0.28.jar:8.0.28] 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_73] 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_73] 
     at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.28.jar:8.0.28]

我不知道，我怎麼能處理這個異常，這樣用戶將得到在屏幕一些有意義的錯誤消息。

來源

2016-06-12 user1578872

我不知道，但我想你可以使用錯誤頁面處理這個異常：

// in web.xml 
<error-page> 
    <error-code>413</error-code> 
    <location>/ErrorHandlerServlet</location> 
</error-page> 
... handlers for other http codes ...

413 - HTTP「請求實體太大」錯誤代碼。

申報ErrorHandlerServlet錯誤頁面（例如用<％@頁頁isErrorPage = 「真正的」％>指令創建JSP）和處理413：

Integer statusCode = (Integer) httpRequest. 
     getAttribute("javax.servlet.error.status_code"); 
if (statusCode == 413) { 
     // print message... 
} 
// handle another error...

來源

2016-06-12 17:45:46 Constantine

這不起作用。我通過AJAX調用上傳文件並獲取狀態代碼爲500（內部錯誤）。在tomcat層拋出異常。請參閱帖子中的完整跟蹤。 – user1578872

你做這樣的事情：

catch (Exception e) { 
    redirectAttributes.addFlashAttribute("message", 
      "You failed to upload, because file size too big " + name + " => " + e.getMessage()); 
}

捕捉異常，然後將閃光消息推送到用戶的瀏覽器：redirectAttributes.addFlashAttribute()

這是處理上傳過程的官方教程（在Spri ng）：https://spring.io/guides/gs/uploading-files/

來源

2016-06-13 02:47:22

Tomcat 8 - 最大文件大小

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