无法“在服务器上运行”来自 Eclipse 的 Web 应用程序

发布于 2024-11-23 16:57:40 字数 3329 浏览 4 评论 0原文

从 Eclipse 运行我的 WebApp 项目时，大多数情况下它都能正确运行。但是，如果错误地停止服务器，我会在“控制台”视图中杀死它，而不是从“服务器”视图中“停止”服务器。在运行干净的项目时，我得到了这个

java.lang.NullPointerException
at org.eclipse.wst.common.componentcore.internal.util.VirtualReferenceUtilities.getDefaultProjectArchiveName(VirtualReferenceUtilities.java:81)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getJavaClasspathReferences(J2EEModuleVirtualComponent.java:332)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getNonManifestRefs(J2EEModuleVirtualComponent.java:236)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:160)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:208)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:201)
at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.hasConsumableReferences(SingleRootUtil.java:217)
at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.validateSingleRoot(SingleRootUtil.java:165)
at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.isSingleRoot(SingleRootUtil.java:93)
at org.eclipse.jst.common.internal.modulecore.SingleRootExportParticipant.canOptimize(SingleRootExportParticipant.java:84)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.canOptimize(FlatVirtualComponent.java:136)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.cacheResources(FlatVirtualComponent.java:118)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.fetchResources(FlatVirtualComponent.java:101)
at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.members(FlatComponentDeployable.java:147)
at org.eclipse.wst.server.core.internal.ModulePublishInfo.hasDelta(ModulePublishInfo.java:418)
at org.eclipse.wst.server.core.internal.ServerPublishInfo.hasDelta(ServerPublishInfo.java:443)
at org.eclipse.wst.server.core.internal.Server.hasPublishedResourceDelta(Server.java:1539)
at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob$1.visit(Server.java:214)
at org.eclipse.wst.server.core.internal.Server.visitModule(Server.java:2929)
at org.eclipse.wst.server.core.internal.Server.visit(Server.java:2913)
at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob.run(Server.java:225)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

，在启动时，我得到了这个，

SEVERE: Error starting static Resources
java.lang.IllegalArgumentException: Document base D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\Webapp does not exist or is not a readable directory
    at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:142)
    at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4319)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)

请帮助恢复。

原文

When running my WebApp project from Eclipse most of times it run correctly. But if by mistake to stop server, I kill it in "Console" view on instead of "Stop" Server from "Servers" View.
While running clean project I get this

java.lang.NullPointerException
at org.eclipse.wst.common.componentcore.internal.util.VirtualReferenceUtilities.getDefaultProjectArchiveName(VirtualReferenceUtilities.java:81)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getJavaClasspathReferences(J2EEModuleVirtualComponent.java:332)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getNonManifestRefs(J2EEModuleVirtualComponent.java:236)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:160)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:208)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:201)
at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.hasConsumableReferences(SingleRootUtil.java:217)
at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.validateSingleRoot(SingleRootUtil.java:165)
at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.isSingleRoot(SingleRootUtil.java:93)
at org.eclipse.jst.common.internal.modulecore.SingleRootExportParticipant.canOptimize(SingleRootExportParticipant.java:84)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.canOptimize(FlatVirtualComponent.java:136)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.cacheResources(FlatVirtualComponent.java:118)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.fetchResources(FlatVirtualComponent.java:101)
at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.members(FlatComponentDeployable.java:147)
at org.eclipse.wst.server.core.internal.ModulePublishInfo.hasDelta(ModulePublishInfo.java:418)
at org.eclipse.wst.server.core.internal.ServerPublishInfo.hasDelta(ServerPublishInfo.java:443)
at org.eclipse.wst.server.core.internal.Server.hasPublishedResourceDelta(Server.java:1539)
at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob$1.visit(Server.java:214)
at org.eclipse.wst.server.core.internal.Server.visitModule(Server.java:2929)
at org.eclipse.wst.server.core.internal.Server.visit(Server.java:2913)
at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob.run(Server.java:225)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

And while launching I get this

SEVERE: Error starting static Resources
java.lang.IllegalArgumentException: Document base D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\Webapp does not exist or is not a readable directory
    at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:142)
    at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4319)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)

Please help recover from this.

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﹏雨一样淡蓝的深情 2024-11-30 16:57:40

我很难让它工作，但是感谢“Alexander Pogrebnyak”（参见在 WTP(Eclipse) tomcat 服务器中部署一个 war 文件）我能够通过 m2e 使 Eclipse Web 项目与 Maven 一起工作：

在开始之前，我必须说我是一个非常多疑的人，所以我总是首先使用“Eclipse > Project > Clean...”菜单清理所有项目（没有选中“立即启动构建”选项）。我也没有选中“Eclipse > 项目 > 自动构建”选项。

顺便说一句，我想你已经安装了 m2e 插件，或者我要说的没有意义......

好吧，让我们开始：

首先，再见服务器配置：

1 ) 如果您以前的服务器配置中有任何项目，请将其删除（右键单击服务器并选择“添加和删除”选项）

2) 清理服务器工作目录（右键单击服务器并选择“Tomcat 服务器工作目录”） )

3) 清理编译的“剩余”（右键单击服务器并选择“清理”）

4) 从“服务器”选项卡中删除服务器配置

5) 完全删除“服务器”项目/文件夹（显示在“项目资源管理器”选项卡中）

6)奖励：我还删除了我的服务器运行时环境（“Eclipse > Window > Preferences > Server > Runtime Environments”）

第二，“Maven clean”（如果您的 Web 项目有“Maven 性质”）：

1）右键单击您的 Web 项目

2）“弹出菜单 > 运行方式 > Maven clean”

这应该会清除您的目标文件夹

第三，安装 m2e WTP 集成（是的）！它不是“默认”的。花了一整天的时间来弄清楚）：

1）打开 Maven“Discovery”选项（Eclipse > Windows > Preferences > Maven > Discovery）

2）按“打开目录”按钮（“m2e Marketplace”）窗口应该出现）

3) 向下滚动直到找到“WTP Integration”选项，然后“选中”它！

4) 按“完成”

5) 将出现“类似插件屏幕”。 “下一步”，“下一步”，“同意”，等等，等等，等等......

第四，离开 Eclipse 而不是再次运行它：

1）如果没有要求重新启动 Eclipse（我发现很难相信你不会），自己重启吧！

第五，maven重新集成：

1）为项目添加Maven性质（右键单击您的Web项目，“弹出菜单>配置>转换为Maven项目”）

2）更新您的maven配置（是的），是的，可疑，我知道）。再次右键单击您的 Web 项目，现在其图标上带有“M”（“弹出菜单 > Maven > 更新项目”）

3) 运行 maven 安装（右键单击您的 Web 项目，“弹出菜单 > 运行” As > Maven install")

4) 构建您的项目（"Eclipse > Project > Build All"）

第六，将其全部投入使用：

1) 部署并运行您的 Web 应用程序（右）单击您的 Web 项目，“弹出菜单 > 运行方式 > 在服务器上运行”）

2) 系统将要求您创建另一个服务器配置。它将再次创建“服务器”项目/文件夹，但事实就是这样。

就是这样！！！我必须承认，一旦我运行服务器，它就不起作用了，但是这次（我不知道为什么）找不到“Log4J”库。在一个“project clean”+“maven clean”和一个“maven install”+“project build”之后，另一条消息指出找不到我的 Servlet 类。我再次执行了“project clean”+“maven clean”和“maven install”+“project build”，然后“瞧”！它起作用了（这就是为什么我如此怀疑）。

我开始担心这个新的 Juno + m2e double...Indigo 或 Ganymede 从来没有遇到过这种问题...但我想我可以再次信任 Eclipse（可以吗？）

I had a hard time to make it work, but thanks to "Alexander Pogrebnyak" (see deploying a war file in WTP(Eclipse) tomcat server) I was able to make Eclipse Web Projects work with Maven through m2e:

Before starting, I must say that I'm a very suspicious man, so I always start by cleaning all my projects using "Eclipse > Project > Clean..." menu (without "start a build immediately" option checked). I also do not have "Eclipse > Project > Build Automatically" option checked.

By the way, I suppose that you will have your m2e plugin installed already, or what I'm going to state has no meaning...

Well, let's start:

First, bye bye Server configuration:

1) If your have any project in a previous server configuration, remove it (right click on the server and select "Add and remove" option)

2) Clean your server work directory (right click on the server and select "Tomcat Server Work Directory")

3) Clean the compiled "leftovers" (right click on the server and select "Clean")

4) Remove your server configuration from the "Servers" tab

5) Completely delete your "Servers" project/folder (shown in your "Project Explorer" tab)

6) BONUS: I also remove my server runtime environment ("Eclipse > Window > Preferences > Server > Runtime Environments")

Second, "Maven clean" (if your web project has a "Maven nature"):

1) Right click your web project

2) "Pop up Menu > Run As > Maven clean"

This should wipe out your target folder

Third, Instal m2e WTP integration (yeah! It does not come as "default". One whole day to figure it out):

1) Open Maven "Discovery" option (Eclipse > Windows > Preferences > Maven > Discovery)

2) Press "Open Catalog" Button (a "m2e Marketplace" window should appear)

3) Scroll down until you find the "WTP Integration" option, then "check" it!

4) Press "Finish"

5) A "plugin screen like" will appear. "Next", "Next", "Agree", blah, blah, blah...

Fourth, leave Eclipse than run it again:

1) If not asked to restar Eclipse (that I find hard to believe you won't), restart it yourself!

Fifth, maven reintegration:

1) Add Maven nature to the project (Right click your web project, "Pop up Menu > Configure > Convert to Maven Project")

2) Update your maven configuration (Yeah, yeah, suspicious, I know). Right click your web project again, now with a "M" on its icon ("Pop up Menu > Maven > Update Project")

3) Run a maven install (Right click your web project, "Pop up Menu > Run As > Maven install")

4) Build your project ("Eclipse > Project > Build All")

Sixth, put it all to work:

1) Deploy and run your web application (Right click your web project, "Pop up Menu > Run As > Run on Server")

2) You will be asked to create another server configuration. It will create the "Servers" project/folder again, but that's the way it is.

That's it!!! I gotta admit, once I ran the server, it didn't work, but this time (i dunnot know why) "Log4J" libraries could not be found. After one "project clean" + "maven clean" and one "maven install" + "project build" another message stating that my Servlet class could not be found. Once again, I executed a "project clean" + "maven clean" and a "maven install" + "project build" and "voila"!!! It worked (And that's why I'm so suspicious).

I was starting to get worried with this new Juno + m2e double... Never had this kind of problem with Indigo or Ganymede... But I guess I can trust Eclipse again (can I?)

无法“在服务器上运行”来自 Eclipse 的 Web 应用程序

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