部署应用引擎项目时出现问题

Question

我正在使用 Eclipse 开发应用程序引擎应用程序，当我想部署应用程序时出现此错误：

'Deploying APP_NAME to Google' has encountered a problem
 An internal error occured during "Deploying APP_NAME to Google"

详情如下：

An internal error occurred during: "Deploying APP_NAME to Google".
Received IOException parsing the input stream for /home/michael/workspace/APP_NAME/war/WEB-INF/web.xml

知道如何解决这个问题吗？

感谢您的帮助。

编辑

奇怪的是每次部署应用都没有报错。

web.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

<!-- Servlets -->

<servlet>
    <servlet-name>deleteAllUniversityServlet</servlet-name>
    <servlet-class>com.APP_NAME.api.DeleteAllUniversities</servlet-class>
</servlet>

<servlet>
    <servlet-name>deleteAllCountryServlet</servlet-name>
    <servlet-class>com.APP_NAME.api.DeleteAllCountries</servlet-class>
</servlet>

<servlet>
    <servlet-name>deleteAllCitiesServlet</servlet-name>
    <servlet-class>com.APP_NAME.api.DeleteAllCities</servlet-class>
</servlet>

<servlet>
    <servlet-name>addUniversity</servlet-name>
    <servlet-class>com.APP_NAME.api.AddUniversity</servlet-class>
</servlet>

<servlet>
    <servlet-name>addCity</servlet-name>
    <servlet-class>com.APP_NAME.api.AddCity</servlet-class>
</servlet>

<servlet>
    <servlet-name>addCountry</servlet-name>
    <servlet-class>com.APP_NAME.api.AddCountry</servlet-class>
</servlet>

<servlet>
    <servlet-name>addGDP</servlet-name>
    <servlet-class>com.APP_NAME.api.AddGDP</servlet-class>
</servlet>

<servlet>
    <servlet-name>addHPC</servlet-name>
    <servlet-class>com.APP_NAME.api.AddHPC</servlet-class>
</servlet>

<servlet>
    <servlet-name>addRanking</servlet-name>
    <servlet-class>com.APP_NAME.api.AddRanking</servlet-class>
</servlet>

<servlet>
    <servlet-name>greetServlet</servlet-name>
    <servlet-class>com.APP_NAME.server.GreetingServiceImpl</servlet-class>
</servlet>

<servlet>
    <servlet-name>serverSearchServiceImpl</servlet-name>
    <servlet-class>com.APP_NAME.server.ServerSearchServiceImpl</servlet-class>
</servlet>

<servlet>
    <servlet-name>serverChartServiceImpl</servlet-name>
    <servlet-class>com.APP_NAME.server.ServerChartServiceImpl</servlet-class>
</servlet>

<servlet>
    <servlet-name>serverCoordServiceImpl</servlet-name>
    <servlet-class>com.APP_NAME.server.ServerCoordServiceImpl</servlet-class>
</servlet>

<servlet>
    <servlet-name>serverDataServiceImpl</servlet-name>
    <servlet-class>com.APP_NAME.server.ServerDataServiceImpl</servlet-class>
</servlet>

<servlet>
    <servlet-name>serverCityServiceImpl</servlet-name>
    <servlet-class>com.APP_NAME.server.ServerCityServiceImpl</servlet-class>
</servlet>

<!-- Servlet-mappings -->

<servlet-mapping>
    <servlet-name>addUniversity</servlet-name>
    <url-pattern>/api/addUniversity</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>addCity</servlet-name>
    <url-pattern>/api/addCity</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>addCountry</servlet-name>
    <url-pattern>/api/addCountry</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>addGDP</servlet-name>
    <url-pattern>/api/addGDP</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>addHPC</servlet-name>
    <url-pattern>/api/addHPC</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>addRanking</servlet-name>
    <url-pattern>/api/addRanking</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>deleteAllCitiesServlet</servlet-name>
    <url-pattern>/api/deleteAllCities</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>deleteAllUniversityServlet</servlet-name>
    <url-pattern>/api/deleteAllUniversities</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>deleteAllCountryServlet</servlet-name>
    <url-pattern>/api/deleteAllCountries</url-pattern>
</servlet-mapping>

<servlet-mapping>
  <servlet-name>greetServlet</servlet-name>
  <url-pattern>/APP_NAME/greet</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>serverSearchServiceImpl</servlet-name>
    <url-pattern>/APP_NAME/serverSearch</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>serverChartServiceImpl</servlet-name>
    <url-pattern>/APP_NAME/serverChart</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>serverCoordServiceImpl</servlet-name>
    <url-pattern>/APP_NAME/serverCoord</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>serverDataServiceImpl</servlet-name>
    <url-pattern>/APP_NAME/serverData</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>serverCityServiceImpl</servlet-name>
    <url-pattern>/APP_NAME/serverCity</url-pattern>
</servlet-mapping>

<!-- Default page to serve -->
<welcome-file-list>
    <welcome-file>APP_NAME.html</welcome-file>
</welcome-file-list>

</web-app>

编辑 2

其实当我得到一个错误的时候，出现的web.xml文件中有错误：

Multiple annotations found at this line :
- Attribute "version" must be declared for element type "web-app".
- Attribute "xmlns" must be declared for element type "web-app".

但现在，经过更正后，我的文件的开头如下所示：

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">

    <!-- Servlets -->

    <servlet>
        <servlet-name>deleteAllUniversityServlet</servlet-name>
        <servlet-class>com.APP_NAME.api.DeleteAllUniversities</servlet-class>
    </servlet>

        ...

我不明白怎么了...

编辑 3

问题似乎来自 DOCTYPE，因为当我将 DOCTYPE 作为注释时，应用程序部署正确。

Answer 1

您没有关闭 <web-app> 节点。
试试这个：

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">
 <servlet>
  <servlet-name>deleteAllUniversityServlet</servlet-name>
  <servlet-class>com.APP_NAME.api.DeleteAllUniversities</servlet-class>
 </servlet>

 <servlet>
  <servlet-name>deleteAllCountryServlet</servlet-name>
  <servlet-class>com.APP_NAME.api.DeleteAllCountries</servlet-class>
 </servlet>

 <servlet>
  <servlet-name>deleteAllCitiesServlet</servlet-name>
  <servlet-class>com.APP_NAME.api.DeleteAllCities</servlet-class>
 </servlet>

 <servlet>
  <servlet-name>addUniversity</servlet-name>
  <servlet-class>com.APP_NAME.api.AddUniversity</servlet-class>
 </servlet>

 <servlet>
  <servlet-name>addCity</servlet-name>
  <servlet-class>com.APP_NAME.api.AddCity</servlet-class>
 </servlet>

</web-app>