Eclipse插件开发中获得当前工程目录
1、在普通Java工程下使用以下代码就行：
view sourceprint?1 String currentDir=System.getProperty("user.dir");
2、但是，在插件开发中，以上代码得到的是Eclipse的安装目录，如果想得到我们的代码所在的目录，则需要
view sourceprint?01 import java.io.File;
02 import java.io.IOException;
03 import java.net.MalformedURLException;
04 import java.net.URL;
05 import java.security.CodeSource;
06 import java.security.ProtectionDomain;
07
08 public class GetPath {
09
10 public static String getPathFromClass(Class cls) throws IOException {
11 String path = null;
12 if (cls == null) {
13 throw new NullPointerException();
14 }
15 URL url = getClassLocationURL(cls);
16 if (url != null) {
17 path = url.getPath();
18 if ("jar".equalsIgnoreCase(url.getProtocol())) {
19 try {
20 path = new URL(path).getPath();
21 } catch (MalformedURLException e) {
22 }
23 int location = path.indexOf("!/");
24 if (location != -1) {
25 path = path.substring(0, location);
26 }
27 }
28 File file = new File(path);
29 path = file.getCanonicalPath();
30 }
31 return path;
32 }
33
34 private static URL getClassLocationURL(final Class cls) {
35 if (cls == null)
36 throw new IllegalArgumentException("null input: cls");
37 URL result = null;
38 final String clsAsResource = cls.getName().replace('.', '/')
39 .concat(".class");
40 final ProtectionDomain pd = cls.getProtectionDomain();
41 if (pd != null) {
42 final CodeSource cs = pd.getCodeSource();
43 if (cs != null)
44 result = cs.getLocation();
45 if (result != null) {
46 if ("file".equals(result.getProtocol())) {
47 try {
48 if (result.toExternalForm().endsWith(".jar")
49 || result.toExternalForm().endsWith(".zip"))
50 result = new URL("jar:"
51 .concat(result.toExternalForm())
52 .concat("!/").concat(clsAsResource));
53 else if (new File(result.getFile()).isDirectory())
54 result = new URL(result, clsAsResource);
55 } catch (MalformedURLException ignore) {
56 }
57 }
58 }
59 }
60 if (result == null) {
61 final ClassLoader clsLoader = cls.getClassLoader();
62 result = clsLoader != null ? clsLoader.getResource(clsAsResource)
63 : ClassLoader.getSystemResource(clsAsResource);
64 }
65 return result;
66 &n
补充：软件开发 , Java ,
