java.io.IOException: The temporary upload location 错误解决

使用springboot框架进行文件上传时报错,错误如下:

org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: The temporary upload location [/tmp/tomcat.126054745504544145.8011/work/Tomcat/localhost/pay] 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)
...
...
Caused by: java.io.IOException: The temporary upload location [/tmp/tomcat.126054745504544145.8011/work/Tomcat/localhost/pay] 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 common frames omitted

错误原因:
/tmp/tomcat.117985270780171125.80/work/Tomcat/localhost/bcp 文件夹不存在

错误分析:
springboot在启动的时候会创建一个tmp的临时文件用来存放一下临时的文件信息等内容
如图:

tmp文件夹 有个特性 ,就是在10天内没有进行操作,该文件夹内的文件夹和文件等就会自动被清除,导致一些文件丢失。
在进行文件上传的时候会先将文件临时存放在/tmp/tomcat.126054745504544145.8011/work/Tomcat/localhost/pay 下(备注:这个对应的是我自己的项目路径,项目不同路径肯定不相同)

而该文件夹以为过年放假 导致将近有10天左右没有操作,导致被删除,年后上传附件出现错误

解决方法:
方法一:直接从新启动项目即可解决(这个只能治标不治本)
方法二:指定上传文件临时的路径(从根本解决),如下

	//在启动类里面添加MultipartConfigElement 配置类
	@Bean
	public MultipartConfigElement multipartConfigElement() {
		MultipartConfigFactory factory = new MultipartConfigFactory();
		factory.setLocation("/pttms/tmp");//指定临时文件路径,这个路径可以随便写
		return factory.createMultipartConfig();
	}

指定好临时路径后还需要在Linux环境上创建对应的文件夹,在重启项目

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转载自blog.csdn.net/qq_40250122/article/details/100726578