老師，請問運行mvn jetty:run 提示缺少類咋整？
[ERROR] Failed to execute goal org.eclipse.jetty:jetty-maven-plugin:9.2.2.v20140
723:run (default-cli) on project spring-mvc-study_1: Execution default-cli of go
al org.eclipse.jetty:jetty-maven-plugin:9.2.2.v20140723:run failed: A required c
lass was missing while executing org.eclipse.jetty:jetty-maven-plugin:9.2.2.v201
40723:run: org/apache/commons/fileupload/FileItemFactory
2017-04-23
現在是，啟動成了，但是中間跑出很多異常，缺包，但是控制臺看不全（大多是org.util.zip…… ? org.io……），反正訪問報錯503。咋整啊？
2017-04-23
http://blog.sina.com.cn/s/blog_a7b211700102v9b1.html