Tomcat传输文件数量大小异常

1、在使用Tomcat服务器的时候，默认是有传输数据大小的限制的。 
会报一下的错误

org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (24915816) exceeds the configured maximum (10485760)
	at org.apache.tomcat.util.http.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:811) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.tomcat.util.http.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:256) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:280) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.connector.Request.parseParts(Request.java:2871) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.connector.Request.parseParameters(Request.java:3215) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.connector.Request.getParameter(Request.java:1145) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:381) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.16.jar:8.5.16]
	at 

2、需要在Tomcat配置中，配置单个文件的大小和请求的大小

package com.university.bibased.config.uploadFileConfig;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.MultipartConfigElement;

/**
 * Create by lh on 2018-12-2 14:18
 */

@Configuration
public class TomcatConfig {

    @Value("${spring.server.MaxFileSize}")
    private String MaxFileSize;
    @Value("${spring.server.MaxRequestSize}")
    private String MaxRequestSize;

    @Bean
    public MultipartConfigElement multipartConfigElement() {
        MultipartConfigFactory factory = new MultipartConfigFactory();
        //  单个数据大小
        factory.setMaxFileSize(MaxFileSize); // KB,MB
        /// 总上传数据大小
        factory.setMaxRequestSize(MaxRequestSize);
        return factory.createMultipartConfig();
    }
}

3、然后再在application.properties中进行配置

#本人用到的是阿里云的oss
#在使用表单上传文件时有可能会产生Tomcat文件超出10M的提示当出现这种情况时
#我们可以在配置文件中配置上传文件
#**注意：**KB、MB……一定要带有B，不可以写K、M
# 单个数据大小
spring.server.MaxFileSize=300MB
# 总上传数据大小
spring.server.MaxRequestSize=500MB