Tomcat中導致「失敗 - 部署上傳失敗，例外：空」錯誤消息的原因是什麼？

Question

Tomcat中導致「FAIL - 部署上傳失敗，異常：null」錯誤消息的原因是什麼？

我試圖從部署管理器到tomcat一場戰爭，但是當我嘗試上載我的錯誤

FAIL - Deploy Upload Failed, Exception: null 

與日誌

SEVERE: HTMLManager: FAIL - Deploy Upload Failed, Exception: null 
java.lang.NullPointerException 
    at org.apache.commons.fileupload.DefaultFileItem.write(DefaultFileItem.java:442) 
    at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:211) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) 
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) 
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) 
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) 
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) 
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) 
    at java.lang.Thread.run(Thread.java:619) 

Answer 1

我在下面的錯誤消息認爲你的訪問權限有問題 - 除非Tomcat以root身份運行，否則我的情況會更糟。如果沒有，Tomcat用戶將需要rw訪問其 webapp目錄（並且應該擁有它）以便解壓任何東西。