Spring 上传大文件时启动 java.net.SocketTimeoutException

Question

我可以在我的应用程序中将文件上传到服务器，我在前端使用 angular 我正在使用这个库上传文件 ng2-file-upload，我正在使用 Spring 在后端启动，目前它适用于最大 1GB 的文件，但是对于更大的文件我在上传时遇到了这个异常：

Caused by: java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. null
    at org.apache.catalina.connector.Request.parseParts(Request.java:2932) ~[catalina.jar:8.5.31]
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3232) ~[catalina.jar:8.5.31]
    at org.apache.catalina.connector.Request.getParameter(Request.java:1137) ~[catalina.jar:8.5.31]
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:381) ~[catalina.jar:8.5.31]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    ... 35 more
Caused by: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. null
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:297) ~[tomcat-coyote.jar:8.5.31]
    at org.apache.catalina.connector.Request.parseParts(Request.java:2884) ~[catalina.jar:8.5.31]
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3232) ~[catalina.jar:8.5.31]
    at org.apache.catalina.connector.Request.getParameter(Request.java:1137) ~[catalina.jar:8.5.31]
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:381) ~[catalina.jar:8.5.31]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    ... 35 more
Caused by: java.net.SocketTimeoutException
    at org.apache.tomcat.util.net.NioBlockingSelector.read(NioBlockingSelector.java:201) ~[tomcat-coyote.jar:8.5.31]
    at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:235) ~[tomcat-coyote.jar:8.5.31]
    at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:216) ~[tomcat-coyote.jar:8.5.31]
    at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1250) ~[tomcat-coyote.jar:8.5.31]
    at org.apache.tomcat.util.net.NioEnd

point$NioSocketWrapper.read(NioEndpoint.java:1193) ~[tomcat-coyote.jar:8.5.31]

似乎在上传服务器时收到了一个空请求，但我不确定，有人可以解释这个错误吗？

Answer 1

要调查此问题，您可以执行以下操作：
1、在application.properties中加入server.connection-timeout=-1属性，检查是否出现错误（-1表示无限超时）
2. 尝试在独立 tomcat 上部署 war（据我所知，有时它的行为与嵌入到 springboot 中的行为不同）

Answer 2

在我们的例子中，在 spring 上更改 application.properties 没有效果，解决方案是更改 tomcat server.xml 配置，从 20000 增加 connectionTimeout（ 20 秒):

 <Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>

Spring 上传大文件时启动 java.net.SocketTimeoutException

Spring boot java.net.SocketTimeoutException while uploading large files

java

tomcat

file-upload

large-files

spring-boot