如何讓Eclipse/m2eclipse接受一個沒有懸掛的大型項目？

Question

我想將Apache James Server項目導入到Eclipse中。

我已經實現了導入，建立和運行近一個星期前，但現在我不能。

現在開始掛在「導入Maven項目93％」

我試過幾種情況

1）我有m2eclipse插件，並有一個嵌入式Maven和使用它。

掛在點是％93

2）此外，我有在Ubuntu命令行行家，當我設置該行家（更改嵌入到這一點）通過「窗口-Prefrences-Maven的安裝到Eclipse 「

掛在％93

3）經過了一個新鮮的軀幹和試圖導入

同樣的結果

有很多隻有一根根球的項目，每次我嘗試時，掛在同一個子項目上。

這裏有一個帖子，所以，用戶的答案告訴它是關於代理。

我控制了我的代理設置，並且沒有指定IP地址和端口。

此外，我想問，如果是關於代理，我如何導入並能夠運行該項目？

與此相關的情況下我的Eclipse工作空間日誌：

!ENTRY org.eclipse.core.resources 4 4 2012-11-09 18:31:14.132 
!MESSAGE Exception loading preferences from: /james-server-queue-activemq/.settings/org.eclipse.core.resources.prefs. 
!STACK 1 
org.eclipse.core.runtime.CoreException: File not found: /home/gobito-merve/dev/workspace091112/james-server-queue-activemq/.settings/org.eclipse.core.resources.prefs. 
    at org.eclipse.core.internal.filesystem.Policy.error(Policy.java:55) 
    at org.eclipse.core.internal.filesystem.local.LocalFile.openInputStream(LocalFile.java:371) 
    at org.eclipse.core.internal.localstore.FileSystemResourceManager.read(FileSystemResourceManager.java:797) 
    at org.eclipse.core.internal.resources.File.getContents(File.java:289) 
    at org.eclipse.core.internal.resources.ProjectPreferences.load(ProjectPreferences.java:461) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:387) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.getChild(EclipsePreferences.java:500) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.internalNode(EclipsePreferences.java:629) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.node(EclipsePreferences.java:757) 
    at org.eclipse.core.internal.resources.CharsetManager.isDerivedEncodingStoredSeparately(CharsetManager.java:367) 
    at org.eclipse.core.internal.resources.CharsetManager.getPreferences(CharsetManager.java:294) 
    at org.eclipse.core.internal.resources.CharsetManager.getCharsetFor(CharsetManager.java:278) 
    at org.eclipse.core.internal.resources.Project.getDefaultCharset(Project.java:420) 
    at org.eclipse.ltk.internal.core.refactoring.resource.undostates.ContainerUndoState.<init>(ContainerUndoState.java:133) 
    at org.eclipse.ltk.internal.core.refactoring.resource.undostates.ProjectUndoState.<init>(ProjectUndoState.java:48) 
    at org.eclipse.ltk.internal.core.refactoring.resource.undostates.ResourceUndoState.fromResource(ResourceUndoState.java:44) 
    at org.eclipse.ltk.core.refactoring.resource.DeleteResourceChange.perform(DeleteResourceChange.java:130) 
    at org.eclipse.ltk.core.refactoring.CompositeChange.perform(CompositeChange.java:278) 
    at org.eclipse.ltk.core.refactoring.CompositeChange.perform(CompositeChange.java:278) 
    at org.eclipse.ltk.core.refactoring.PerformChangeOperation$1.run(PerformChangeOperation.java:258) 
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) 
    at org.eclipse.ltk.core.refactoring.PerformChangeOperation.executeChange(PerformChangeOperation.java:306) 
    at org.eclipse.ltk.internal.ui.refactoring.UIPerformChangeOperation.executeChange(UIPerformChangeOperation.java:92) 
    at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:218) 
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) 
    at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87) 
    at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) 
Caused by: java.io.FileNotFoundException: /home/gobito-merve/dev/workspace091112/james-server-queue-activemq/.settings/org.eclipse.core.resources.prefs (No such file or directory) 
    at java.io.FileInputStream.open(Native Method) 
    at java.io.FileInputStream.<init>(FileInputStream.java:138) 
    at org.eclipse.core.internal.filesystem.local.LocalFile.openInputStream(LocalFile.java:362) 
    ... 25 more 
!SUBENTRY 1 org.eclipse.core.filesystem 4 271 2012-11-09 18:31:14.133 
!MESSAGE File not found: /home/gobito-merve/dev/workspace091112/james-server-queue-activemq/.settings/org.eclipse.core.resources.prefs. 
!STACK 0 
java.io.FileNotFoundException: /home/gobito-merve/dev/workspace091112/james-server-queue-activemq/.settings/org.eclipse.core.resources.prefs (No such file or directory) 
    at java.io.FileInputStream.open(Native Method) 
    at java.io.FileInputStream.<init>(FileInputStream.java:138) 
    at org.eclipse.core.internal.filesystem.local.LocalFile.openInputStream(LocalFile.java:362) 
    at org.eclipse.core.internal.localstore.FileSystemResourceManager.read(FileSystemResourceManager.java:797) 
    at org.eclipse.core.internal.resources.File.getContents(File.java:289) 
    at org.eclipse.core.internal.resources.ProjectPreferences.load(ProjectPreferences.java:461) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:387) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.getChild(EclipsePreferences.java:500) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.internalNode(EclipsePreferences.java:629) 
    at org.eclipse.core.internal.preferences.EclipsePreferences.node(EclipsePreferences.java:757) 
    at org.eclipse.core.internal.resources.CharsetManager.isDerivedEncodingStoredSeparately(CharsetManager.java:367) 
    at org.eclipse.core.internal.resources.CharsetManager.getPreferences(CharsetManager.java:294) 
    at org.eclipse.core.internal.resources.CharsetManager.getCharsetFor(CharsetManager.java:278) 
    at org.eclipse.core.internal.resources.Project.getDefaultCharset(Project.java:420) 
    at org.eclipse.ltk.internal.core.refactoring.resource.undostates.ContainerUndoState.<init>(ContainerUndoState.java:133) 
    at org.eclipse.ltk.internal.core.refactoring.resource.undostates.ProjectUndoState.<init>(ProjectUndoState.java:48) 
    at org.eclipse.ltk.internal.core.refactoring.resource.undostates.ResourceUndoState.fromResource(ResourceUndoState.java:44) 
    at org.eclipse.ltk.core.refactoring.resource.DeleteResourceChange.perform(DeleteResourceChange.java:130) 
    at org.eclipse.ltk.core.refactoring.CompositeChange.perform(CompositeChange.java:278) 
    at org.eclipse.ltk.core.refactoring.CompositeChange.perform(CompositeChange.java:278) 
    at org.eclipse.ltk.core.refactoring.PerformChangeOperation$1.run(PerformChangeOperation.java:258) 
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) 
    at org.eclipse.ltk.core.refactoring.PerformChangeOperation.executeChange(PerformChangeOperation.java:306) 
    at org.eclipse.ltk.internal.ui.refactoring.UIPerformChangeOperation.executeChange(UIPerformChangeOperation.java:92) 
    at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:218) 
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) 
    at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87) 
    at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) 

感謝您的建議。

Answer 1

我已經將我的eclipse的文件夾從一個地方移到另一個地方，並且該文件夾有錯誤的根權限。因此當我調用eclipse時，我用超級用戶和日食的M2_REPO路徑改爲/root/.m2/repository。現在我改變了previliges和M2_REPO被設置爲/home/myuser/.m2/repository並且問題已經消失。

Answer 2

有時候一個項目對Eclipse/m2eclipse來說太大了，至少在我的經驗中。這裏有一些技巧，我用它來哄騙Eclipse來處理大項目。

1）關閉「自動構建」功能 - 似乎這是通常會破壞月蝕的背影。

2）考慮關閉其他m2eclipse maven功能，如下載源和javadoc;這些都很慢。

3）執行SCM從communline檢出項目，並從命令行構建它們。我建議讓Maven現在檢索源代碼和javadocs;這樣你就不會讓日食做這麼大的瑣事。

4）在Eclipse中，只導入您需要的模塊「導入現有Maven項目」。考慮到你不需要一個模塊來作爲eclipse項目來閱讀它的源代碼。如果你已經在命令行編譯期間下載了源代碼，那麼你在eclipse中擁有的任何項目都將能夠進入它的依賴源代碼，無論是在代碼瀏覽和調試中，因爲eclipse知道如何在你的代碼中找到源文件當地的maven回購。

如果有人有更多關於如何充分利用m2eclipse的技巧，我很樂意看到它們添加到這裏。