在目录中查找类位于哪个jar包中
2008-01-05 08:26:45 来源:WEB开发网作者: Cherami
做java开发的人可能都碰到过面对一大堆的jar包但是自己不知道需要的那些个类到底位于哪个jar包中,使用下面的代码,这个问题就可以迎刃而解了。
import java.io.File;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class FindInJar {
public String className;
public ArrayList jarFiles = new ArrayList();
public FindInJar() {
}
public FindInJar(String className) {
this.className = className;
}
public void setClassName(String className) {
this.className = className;
}
public List findClass(String dir, boolean recurse) {
searchDir(dir, recurse);
return this.jarFiles;
}
PRotected void searchDir(String dir, boolean recurse) {
try {
File d = new File(dir);
if (!d.isDirectory()) {
return;
}
File[] files = d.listFiles();
for (int i = 0; i < files.length; i++) {
if (recurse && files[i].isDirectory()) {
searchDir(files[i].getAbsolutePath(), true);
} else {
String filename = files[i].getAbsolutePath();
if (filename.endsWith(".jar")filename.endsWith(".zip")) {
ZipFile zip = new ZipFile(filename);
Enumeration entries = zip.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = (ZipEntry) entries.nextElement();
String thisClassName = getClassName(entry);
if (thisClassName.equals(this.className) thisClassName.equals(this.className + ".class")) {
this.jarFiles.add(filename);
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
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