Tomcat 7部署war：对servlet 404错误，其他文件很好，eclipse中的一切都很好 [英] Tomcat 7 deployed war: 404 error on servlets, other files fine, everything fine in eclipse

问题描述

我有一个Java Web应用程序通过eclipse的运行在服务器菜单选项启动时工作正常，但是当我将war文件部署到在VPS上运行的tomcat时，它会在尝试访问任何servlets（有一个servlet正在工作，但我不知道为什么它会工作，而其他servlet不会）。所有的jsp文件和直接提供的文件也可以正常工作，这只是我无法上班的servlets。

我原来是使用 @WebServlet 注释，但是我删除了它们，我使用web.xml，因为我部署的服务器似乎忽略了注释，这可能是浪费时间。 p>

这是我的web.xml：

 <？xml version = 1.0encoding =UTF-8？> 
< web-app xmlns：xsi =http://www.w3.org/2001/XMLSchema-instancexmlns =http://java.sun.com/xml/ns/javaeexsi ：schemaLocation =http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsdversion =2.5> 
<！ -  30天内自动登录（检测COOKIE） - > 
< filter> 
< filter-name> loginFilter< / filter-name> 
< filter-class> co.fsjr.web.LoginCookie< / filter-class> 
< / filter> 
< filter-mapping> 
< filter-name> loginFilter< / filter-name> 
< url-pattern> /main.jsp< / url-pattern> 
< / filter-mapping> 
< filter> 
< filter-name> adminFilter< / filter-name> 
< filter-class> co.fsjr.web.AdminIntercept< / filter-class> 
< / filter> 
< filter-mapping> 
< filter-name> adminFilter< / filter-name> 
< url-pattern> / user / adminuser / *< / url-pattern> 
< / filter-mapping> 
< servlet> 
< servlet-name> ActionServlet< / servlet-name> 
< servlet-class> co.fsjr.web.ActionServlet< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> CheckCode< / servlet-name> 
< servlet-class> co.fsjr.util.CheckCode< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> FlightQuery< / servlet-name> 
< servlet-class> co.fsjr.servlet.FlightQuery< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> AdminUserServlet< / servlet-name> 
< servlet-class> co.fsjr.servlet.AdminUserServlet< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> FlightSortServlet< / servlet-name> 
< servlet-class> co.fsjr.servlet.FlightSortServlet< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> OrderServlet< / servlet-name> 
< servlet-class> co.fsjr.servlet.OrderServlet< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> PrepareDataServlet< / servlet-name> 
< servlet-class> co.fsjr.servlet.PrepareDataServlet< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> PayPalServlet< / servlet-name> 
< servlet-class> co.fsjr.servlet.PayPalServlet< / servlet-class> 
< / servlet> 
< servlet> 
< servlet-name> UserServlet< / servlet-name> 
< servlet-class> co.fsjr.servlet.UserServlet< / servlet-class> 
< / servlet> 
< servlet-mapping> 
< servlet-name> ActionServlet< / servlet-name> 
< url-pattern> *。do< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> CheckCode< / servlet-name> 
< url-pattern> / check< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> FlightQuery< / servlet-name> 
< url-pattern> / FlightQuery< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> AdminUserServlet< / servlet-name> 
< url-pattern> / AdminUserServlet< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> FlightSortServlet< / servlet-name> 
< url-pattern> / FlightSortServlet< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> OrderServlet< / servlet-name> 
< url-pattern> / OrderServlet< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> PayPalServlet< / servlet-name> 
< url-pattern> / PayPalServlet< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> PrepareDataServlet< / servlet-name> 
< url-pattern> / PrepareDataServlet< / url-pattern> 
< / servlet-mapping> 
< servlet-mapping> 
< servlet-name> UserServlet< / servlet-name> 
< url-pattern> / UserServlet< / url-pattern> 
< / servlet-mapping> 
< welcome-file-list> 
< welcome-file> /main.jsp< / welcome-file> 
< / welcome-file-list> 
<！ - 配置错误处理 - > 
< error-page> 
< error-code> 404< / error-code> 
< location> /error/404.jsp< / location> 
< / error-page> 
< error-page> 
< error-code> 505< / error-code> 
< location> /505.html< / location> 
< / error-page> 
<！ - 配置异常处理 - > 
< error-page> 
< exception-type> javax.servle.ServletException< / exception-type> 
< location> /errorpage.jsp< / location> 
< / error-page> 
< error-page> 
< exception-type> java.lang.NullPointerException< / exception-type> 
< location> /error.html< / location> 
< / error-page> 
< / web-app> 
  

/ check是正常工作的servlet，但所有其他servlet映射只会导致404错误页。再次：整个网络应用程序在我的本地机器上正常工作，只是不在远程服务器上，尽管它们表面上具有相同版本的tomcat 7。

解决方案

对于Tomcat以及JBoss，如果有奇怪的错误，它可以帮助清除'temp'和'work'文件夹。在我的工作中，我们的dev有一个批处理脚本来清除服务器启动时的这些文件夹。

I have a Java web application which is working perfectly when launched via eclipse's "run in server" menu option, but when I deploy the war file to tomcat running on a VPS it gives a 404 error when trying to access any of the servlets (there is one servlet that's working but I have no idea why it would work and the others wouldn't). All the jsp documents and directly served files are also working fine, it's just the servlets that I can't get to work.

I had originally been using @WebServlet annotations, but I deleted them and I'm using web.xml because the server I'm deploying to seems to ignore the annotations, that may have been a waste of time.

This is my web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
  <!-- 30天内自动登录（检测COOKIE） -->
  <filter>
        <filter-name>loginFilter</filter-name>
        <filter-class>co.fsjr.web.LoginCookie</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>loginFilter</filter-name>
    <url-pattern>/main.jsp</url-pattern>
  </filter-mapping>
  <filter>
    <filter-name>adminFilter</filter-name>
    <filter-class>co.fsjr.web.AdminIntercept</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>adminFilter</filter-name>
    <url-pattern>/user/adminuser/*</url-pattern>
  </filter-mapping>
  <servlet>
    <servlet-name>ActionServlet</servlet-name>
    <servlet-class>co.fsjr.web.ActionServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>CheckCode</servlet-name>
    <servlet-class>co.fsjr.util.CheckCode</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>FlightQuery</servlet-name>
    <servlet-class>co.fsjr.servlet.FlightQuery</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>AdminUserServlet</servlet-name>
    <servlet-class>co.fsjr.servlet.AdminUserServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>FlightSortServlet</servlet-name>
    <servlet-class>co.fsjr.servlet.FlightSortServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>OrderServlet</servlet-name>
    <servlet-class>co.fsjr.servlet.OrderServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>PrepareDataServlet</servlet-name>
    <servlet-class>co.fsjr.servlet.PrepareDataServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>PayPalServlet</servlet-name>
    <servlet-class>co.fsjr.servlet.PayPalServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>UserServlet</servlet-name>
    <servlet-class>co.fsjr.servlet.UserServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>ActionServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>CheckCode</servlet-name>
    <url-pattern>/check</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>FlightQuery</servlet-name>
    <url-pattern>/FlightQuery</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>AdminUserServlet</servlet-name>
    <url-pattern>/AdminUserServlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>FlightSortServlet</servlet-name>
    <url-pattern>/FlightSortServlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>OrderServlet</servlet-name>
    <url-pattern>/OrderServlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>PayPalServlet</servlet-name>
    <url-pattern>/PayPalServlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>PrepareDataServlet</servlet-name>
    <url-pattern>/PrepareDataServlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>UserServlet</servlet-name>
    <url-pattern>/UserServlet</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>/main.jsp</welcome-file>
  </welcome-file-list>
      <!-- 配置错误处理 -->
    <error-page>
       <error-code>404</error-code>
       <location>/error/404.jsp</location>
    </error-page>
    <error-page>
       <error-code>505</error-code>
       <location>/505.html</location>
    </error-page>
    <!-- 配置异常处理 -->
    <error-page>
       <exception-type>javax.servle.ServletException</exception-type>
       <location>/errorpage.jsp</location>
    </error-page>
    <error-page>
       <exception-type>java.lang.NullPointerException</exception-type>
       <location>/error.html</location>
    </error-page>
</web-app>

/check is the servlet that's working properly, but all the other servlet mappings just lead to the 404 error page. Once again: the entire web app is working fine on my local machine, just not on the remote server, even though they ostensibly have the same version of tomcat 7.

解决方案

For Tomcat as well as JBoss, if there are strange errors, it can help to clear the 'temp' and 'work' folders. At my work, us dev's have a batch script to clear those folders on server start.

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