tomcat上传多个文件报错

Question

1，公司项目需要通过web端需要让用户上传文件。上传单个文件没有问题，但是用户如果在上传文件的地方放多个图片就会无法上传。查看日志

2017-09-20 18:21:44.272 ERROR 9915 --- [io-8080-exec-12] o.s.boot.web.support.ErrorPageFilter     : Forwarding to error page from request [/information/edit] due to exception [Could not parse multipart ***servlet request; nested exception is java.lang.IllegalStateException: The m*ulti-part request contained parameter data (excluding uploaded files) that exceeded the limit for maxPostSize set on the associated connector]****

org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is java.lang.IllegalStateException: The multi-part request contained parameter data (excluding uploaded files) that exceeded the limit for maxPostSize set on the associated connector
    at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:111) ~[spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
    at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:85) ~[spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
    at org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:76) ~[spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1099) ~[spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:932) ~[spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) ~[spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]

2，解决方法，看到提示maxpostsize，故去修改server.xml中的maxpostsize改为0了,还是不行。换句话说并不是这个问题。

3，环境说明：直接裸奔tomcat 前端没有Nginx和apache，第2个就是项目用的框架spring boot

4，请问各位有什么好的讲义方法，谢谢。

Answer 1

maxpostsize改为-1试下，不限制大小tomcat7开始就不能用等于0了，只能小于0
tomcat7.0.63（包含）之后：
maxPostSize The maximum size in bytes of the POST which will be handled by the container FORM URL parameter parsing. The limit can be disabled by setting this attribute to a value less than zero. If not specified, this attribute is set to 2097152 (2 megabytes).