GWT无法通过找不到appengine-web.xml开始

Question

我正在处理一个问题，我知道问题在哪里，但我不知道如何解决。 当我尝试使用运行方式-> Web应用程序运行开发服务器时，在控制台上出现以下错误：

Initializing App Engine server
Feb 07, 2014 8:39:07 AM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
SEVERE: Received exception processing C:\Users\JOSR\Last Hope\WEB-INF/appengine-web.xml
com.google.apphosting.utils.config.AppEngineConfigException: Could not locate C:\Users\JOSR\Last Hope\WEB-INF\appengine-web.xml
at com.google.apphosting.utils.config.AppEngineWebXmlReader.getInputStream(AppEngineWebXmlReader.java:140)
at com.google.apphosting.utils.config.AppEngineWebXmlReader.readAppEngineWebXml(AppEngineWebXmlReader.java:75)
at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:166)
at com.google.appengine.tools.development.ApplicationConfigurationManager$WarModuleConfigurationHandle.readConfiguration(ApplicationConfigurationManager.java:399)
at com.google.appengine.tools.development.ApplicationConfigurationManager.<init>(ApplicationConfigurationManager.java:146)
at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:88)
at com.google.appengine.tools.development.DevAppServerImpl.<init>(DevAppServerImpl.java:139)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.google.appengine.tools.development.DevAppServerFactory.doCreateDevAppServer(DevAppServerFactory.java:258)
at com.google.appengine.tools.development.DevAppServerFactory.access$000(DevAppServerFactory.java:36)
at com.google.appengine.tools.development.DevAppServerFactory$1.run(DevAppServerFactory.java:226)
at com.google.appengine.tools.development.DevAppServerFactory$1.run(DevAppServerFactory.java:224)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:224)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:76)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:60)
at com.google.appengine.tools.development.gwt.AppEngineLauncher.start(AppEngineLauncher.java:84)
at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509)
at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1093)
at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:836)
at com.google.gwt.dev.DevMode.main(DevMode.java:311)
Caused by: java.io.FileNotFoundException: C:\Users\JOSR\Last Hope\WEB-INF\appengine-web.xml (The system cannot find the path specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at com.google.apphosting.utils.config.AppEngineWebXmlReader.getInputStream(AppEngineWebXmlReader.java:137)
... 23 more

我知道路径“ C：\\ Users \\ JOSR \\ Last Hope \\ WEB-INF / appengine-web.xml”错误，应为“ C：\\ Users \\ JOSR \\ Last Hope \\ war / WEB-INF / appengine- web.xml”，但我不知道在哪里更改它或如何强制GWT使用正确的战争路径。 有任何想法吗？

谢谢阅读！

Answer 1

从上下文菜单

运行方式/运行配置，然后选择html，选择Arguments标签

-war选项就是那个。

Answer 2

在GWT-GAE项目中开始使用Maven时，我遇到了同样的问题。

在我的情况下，发生此问题是因为Eclipse启动文件试图从target/myproject/WEB-INF/appengine-web.xml加载appengine-web.xml，但是文件位于src/main/webapp/WEB-INF 。

解决方案是从Eclipse中的项目属性中取消选中“从此目录启动并部署（由于这是Maven项目而被禁用）”选项，即使它确实是一个Maven项目，如图中的“ WAR目录： ”应指向src/main/webapp

重要 ！ 请记住，您必须在运行启动文件之前使用maven构建项目，否则文件夹target/myproject/WEB-INF/将为空。