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1.下载反编译工具jad（下面提供下载）

将下载下来的jadstar158.zip解压缩，将jad.exe文件放入jdk安装目录下

如：C:\Program Files\Java\jdk1.6.0_20\bin 

2.下载eclipse反编译插件net.sf.jadclipse_3.3.0.jar（下面提供下载）

3.将net.sf.jadclipse_3.3.0.jar 放入MyEclipse安装目录下，

 如 ：安装目录\Genuitec\dropins下 没有dropins，新建之，然后在dropins中新建features文件夹和plugins文件夹，将net.sf.jadclipse_3.3.0.jar拷贝到plugins中，然后新建java工程，运行以下代码（替换其中最后的代码，你电脑反编译插件所在的实际位置）：

[java] view plaincopy

 

1. import java.io.File;     
2. import java.util.ArrayList;     
3. import java.util.List;     
4.   
5. /**   
6. * MyEclipse10.0 插件配置代码生成器   
7. *   
8. *   
9. */    
10.   
11. public class CreatePluginsConfig     
12. {     
13.     
14.     public CreatePluginsConfig()     
15.     {     
16.     }     
17.     
18.     public void print(String path)     
19.     {     
20.         List<String> list = getFileList(path);     
21.         if (list == null)     
22.         {     
23.             return;     
24.         }     
25.     
26.         int length = list.size();     
27.         for (int i = 0; i < length; i++)     
28.         {     
29.             String result = "";     
30.             String thePath = getFormatPath(getString(list.get(i)));     
31.             File file = new File(thePath);     
32.             if (file.isDirectory())     
33.             {     
34.                 String fileName = file.getName();     
35.                 if (fileName.indexOf("_") < 0)     
36.                 {     
37.                     print(thePath);     
38.                     continue;     
39.                 }     
40.                 String[] filenames = fileName.split("_");     
41.                 String filename1 = filenames[0];     
42.                 String filename2 = filenames[1];     
43.                 result = filename1 + "," + filename2 + ",file:/" + path + "\\"    
44.                         + fileName + "\\,4,false";     
45.                 System.out.println(result);     
46.             } else if (file.isFile())     
47.             {     
48.                 String fileName = file.getName();     
49.                 if (fileName.indexOf("_") < 0)     
50.                 {     
51.                     continue;     
52.                 }     
53.                 int last = fileName.lastIndexOf("_");// 最后一个下划线的位置     
54.                 String filename1 = fileName.substring(0, last);     
55.                 String filename2 = fileName.substring(last + 1, fileName     
56.                         .length() - 4);     
57.                 result = filename1 + "," + filename2 + ",file:/" + path + "\\"    
58.                         + fileName + ",4,false";     
59.                 System.out.println(result);     
60.             }     
61.     
62.         }     
63.     }     
64.     
65.     public List<String> getFileList(String path)     
66.     {     
67.         path = getFormatPath(path);     
68.         path = path + "/";     
69.         File filePath = new File(path);     
70.         if (!filePath.isDirectory())     
71.         {     
72.             return null;     
73.         }     
74.         String[] filelist = filePath.list();     
75.         List<String> filelistFilter = new ArrayList<String>();     
76.     
77.         for (int i = 0; i < filelist.length; i++)     
78.         {     
79.             String tempfilename = getFormatPath(path + filelist[i]);     
80.             filelistFilter.add(tempfilename);     
81.         }     
82.         return filelistFilter;     
83.     }     
84.     
85.     public String getString(Object object)     
86.     {     
87.         if (object == null)     
88.         {     
89.             return "";     
90.         }     
91.         return String.valueOf(object);     
92.     }     
93.     
94.     public String getFormatPath(String path)     
95.     {     
96.         path = path.replaceAll("\\\\", "/");     
97.         path = path.replaceAll("//", "/");     
98.         return path;     
99.     }     
100.     
101.     public static void main(String[] args)     
102.     {     
103.         /*替换成你的插件的安装目录*/   
104.         String plugin = "D:\\MyEclipse 10\\MyEclipse 10\\dropins\\plugins";  
105.         new CreatePluginsConfig().print(plugin);     
106.     }     
107. }    

4.重启MyEclipse,配置 jadclipse

在Eclipse 的Windows—> Perferences—>General->Editors->File Associations 中修改“*.class”默认关联的编辑器为“JadClipse Class File Viewer”。如果没有*.class，则点击“add"增加一个。

安装设置完毕，可以双击class文件。

资源下载地址：jadstar158.zip (233 KB)

                         net.sf.jadclipse_3.3.0.jar (44 KB)

如果遇到如下错误，解决方式：

eclipse中添加jad插件

1. 下载jad: http://www.softpedia.com/progDownload/JAD-Download-85911.html

下载后, 将解压后的jad.exe放到某个目录下, 如: D:java/jad.exe(后面会用到这个路径)

2. 下载jadClipse插件: http://sourceforge.net/projects/jadclipse/files/

将解压后的jar文件放到Eclipse的plugins子目录下

3. 重启eclipse

4. 配置JadClipse:

打开Windows ->Preferences -> Java -> JadClipse选项, 在path to decomplier: 文本框中写入D:\java\jad.exe(先前下载jad.exe的路径)

然后,点击确定, 重启eclipse即可完成jad插件的添加

另外, 出现如下问题, 多半是JadClipse没有配置好, 按上述步骤配置即可解决问题.

/*jadclipse*/

/*
 DECOMPILATION REPORT

 Decompiled from: D:\workspace\MyEclipse 8.5\BeanUtilsTest\lib\commons-beanutils-1.8.3.jar
 Total time: 3 ms
 Jad reported messages/errors:
 Exit status: 0
 Caught exceptions:
java.io.IOException: Cannot run program "D:\java" (in directory "C:\Users\administrator\.net.sf.jadclipse\1372683520891"): CreateProcess error=5, ¾?ø·Ã
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
 at java.lang.Runtime.exe*(Runtime.java:593)
 at net.sf.jadclipse.JadDecompiler.decompile(JadDecompiler.java:160)
 at net.sf.jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:217)
 at net.sf.jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:150)
 at net.sf.jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:83)
 at net.sf.jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:87)
 at net.sf.jadclipse.JadclipseClassFileEditor.doSetInput(JadclipseClassFileEditor.java:45)
 at net.sf.jadclipse.JadclipseActionBarContributor.setActiveEditor(JadclipseActionBarContributor.java:87)
 at org.eclipse.ui.internal.EditorActionBars.partChanged(EditorActionBars.java:342)
 at org.eclipse.ui.internal.WorkbenchPage$3.run(WorkbenchPage.java:632)
 at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
 at org.eclipse.core.runtime.Platform.run(Platform.java:888)
 at org.eclipse.ui.internal.WorkbenchPage.activatePart(WorkbenchPage.java:621)
 at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3527)
 at org.eclipse.ui.internal.WorkbenchPage.activate(WorkbenchPage.java:614)
 at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2869)
 at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2762)
 at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2754)
 at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2705)
 at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
 at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2701)
 at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2685)
 at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2676)
 at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:374)
 at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:178)
 at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229)
 at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208)
 at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlink.open(JavaElementHyperlink.java:74)
 at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseUp(HyperlinkManager.java:406)
 at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207)
 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
 at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
 at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
 at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
 at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
 at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
 at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
 at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
 at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
 at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
 at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
Caused by: java.io.IOException: CreateProcess error=5, ¾?ø·Ã
 at java.lang.ProcessImpl.create(Native Method)
 at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
 at java.lang.ProcessImpl.start(ProcessImpl.java:30)
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
 ... 54 more

*/

MyEclipse10.0安装jad反编译插件

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原文地址：http://www.cnblogs.com/yaowen/p/4947222.html