异常信息

org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: The temporary upload location [/tmp/tomcat.1428942566812653608.8090/work/Tomcat/localhost/ROOT] is not valid
  at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.handleParseFailure(StandardMultipartHttpServletRequest.java:122)
  at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:113)
  at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:86)
  at org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:93)
  at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1128)
  at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:960)
  at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
  at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974)
  at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
  at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.apache.catalina.filters.RemoteIpFilter.doFilter(RemoteIpFilter.java:876)
  at org.apache.catalina.filters.RemoteIpFilter.doFilter(RemoteIpFilter.java:913)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at com.yooli.xcauto.heimdallrbackend.config.WebConfig$LoginPeRSSionmerFilter.doFilter(WebConfig.java:124)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
  at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496)
  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
  at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
  at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
  at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
  at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468)
  at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
  at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: The temporary upload location [/tmp/tomcat.1428942566812653608.8090/work/Tomcat/localhost/ROOT] is not valid
  at org.apache.catalina.connector.Request.parseParts(Request.java:2859)
  at org.apache.catalina.connector.Request.parseParameters(Request.java:3232)
  at org.apache.catalina.connector.Request.getParameter(Request.java:1137)
  at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:381)
  at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:84)
  ... 23 more

分析原因

1.该异常是如何产生的
我是通过postman，发送一个post请求，导致该异常的。
从上面的异常信息来看，是因为该目录[/tmp/tomcat.1428942566812653608.8090/work/Tomcat/localhost/ROOT]，不存在导致的。
2.该异常为何会产生
我的应用中没有文件上传，为啥会抛org.springframework.web.multipart.MultipartException异常
2.1）首先，我们应该知道，对于http POST请求来说，它需要使用这个临时目录来存储post数据。
2.2）其次，因为该目录是挂在到/temp目录下的临时文件，那么对于一些OS系统，像centOS将经常删除这个临时目录，所有导致该目录不存在了

解决方案

1.重启你的项目就可以了（我采用的这种）
你还可以尝试以下方式
2.在application.yml文件中设置multipart location ，并重启项目

spring:
  http:
    multipart:
      location: /data/upload_tmp

3.添加启动参数 -java.tmp.dir=/path/to/application/temp/，并重启