error信息:

java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (55916489) exceeds the configured maximum (52428800)
原因：war包超出了上线50MB
修改方法：
tomcat/webapps/manager/WEB-INF/web.xml里面

1.   <multipart-config> 
2.     <!-- 50MB max --> 
3.     <max-file-size>52428800</max-file-size> 
4.     <max-request-size>52428800</max-request-size> 
5.     <file-size-threshold>0</file-size-threshold> 
6.   </multipart-config> 
7. </servlet> 
8. <servlet>
   
1. 默认是50MB，修改其大小，重启服务即可。