打开struts2.xml文件时提示 Could not open the editor: An unexpected exception解决方案
提示错误信息：Could not open the editor: An unexpected exception was thrown.
01java.lang.NullPointerException
02at com.genuitec.eclipse.struts.editor.modeler.model.StrutsConfigDiagram.processAction(StrutsConfigDiagram.java:574)
03at com.genuitec.eclipse.struts.editor.modeler.model.StrutsConfigDiagram.synchronizeDiagram(StrutsConfigDiagram.java:479)
04at com.genuitec.eclipse.struts.editor.modeler.model.StrutsConfigDiagram.differedSynchronize(StrutsConfigDiagram.java:120)
05at com.genuitec.eclipse.struts.editor.multipage.StrutsConfigEditor.createPages(StrutsConfigEditor.java:296)
06at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:357)
07at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:662)
08at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:462)
09at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
10at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)
11at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)
12at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)
13at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
14at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)
15at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
16at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
17at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1608)
18at org.eclipse.ui.internal.PartStack.add(PartStack.java:499)
19at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103)
20at org.eclipse.ui.internal.PartStack.add(PartStack.java:485)
21at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112)......
解
决方法：关闭MyEclipse，打开项目，找到当前工程的src目录(和struts.xml同级目录)，会发现有一个文件，名字为
“.struts.mex”。删除这个文件，启动MyEclipse，然后双击，或者右键，选择用“MyEclipse Struts Config
Editor”打开struts.xml文件
该贴由koei转至本版2014-5-2 16:21:39
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