我需要返回java项目（zip / jar）包含的所有包，类。我猜QDox可以做到这一点。我找到了课程：http://www.jarvana.com/jarvana/view/com/ning/metrics.serialization-all/2.0.0-pre5/metrics.serialization-all-2.0.0-pre5-jar-with-dependencies-sources.jar!/com/thoughtworks/qdox/tools/QDoxTester.java?format=ok
package com.thoughtworks.qdox.tools;
import com.thoughtworks.qdox.JavaDocBuilder;
import com.thoughtworks.qdox.directorywalker.DirectoryScanner;
import com.thoughtworks.qdox.directorywalker.FileVisitor;
import com.thoughtworks.qdox.directorywalker.SuffixFilter;
import com.thoughtworks.qdox.parser.ParseException;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* Tool for testing that QDox can parse Java source code.
*
* @author Joe Walnes
*/
public class QDoxTester {
public static interface Reporter {
void success(String id);
void parseFailure(String id, int line, int column, String reason);
void error(String id, Throwable throwable);
}
private final Reporter reporter;
public QDoxTester(Reporter reporter) {
this.reporter = reporter;
}
public void checkZipOrJarFile(File file) throws IOException {
ZipFile zipFile = new ZipFile(file);
Enumeration entries = zipFile.entries();
while (entries.hasMoreElements()) {
ZipEntry zipEntry = (ZipEntry) entries.nextElement();
InputStream inputStream = zipFile.getInputStream(zipEntry);
try {
verify(file.getName() + "!" + zipEntry.getName(), inputStream);
} finally {
inputStream.close();
}
}
}
public void checkDirectory(File dir) throws IOException {
DirectoryScanner directoryScanner = new DirectoryScanner(dir);
directoryScanner.addFilter(new SuffixFilter(".java"));
directoryScanner.scan(new FileVisitor() {
public void visitFile(File file) {
try {
checkJavaFile(file);
} catch (IOException e) {
// ?
}
}
});
}
public void checkJavaFile(File file) throws IOException {
InputStream inputStream = new FileInputStream(file);
try {
verify(file.getName(), inputStream);
} finally {
inputStream.close();
}
}
private void verify(String id, InputStream inputStream) {
try {
JavaDocBuilder javaDocBuilder = new JavaDocBuilder();
javaDocBuilder.addSource(new BufferedReader(new InputStreamReader(inputStream)));
reporter.success(id);
} catch (ParseException parseException) {
reporter.parseFailure(id, parseException.getLine(), parseException.getColumn(), parseException.getMessage());
} catch (Exception otherException) {
reporter.error(id, otherException);
}
}
public static void main(String[] args) throws IOException {
if (args.length == 0) {
System.err.println("Tool that verifies that QDox can parse some Java source.");
System.err.println();
System.err.println("Usage: java " + QDoxTester.class.getName() + " src1 [src2] [src3]...");
System.err.println();
System.err.println("Each src can be a single .java file, or a directory/zip/jar containing multiple source files");
System.exit(-1);
}
ConsoleReporter reporter = new ConsoleReporter(System.out);
QDoxTester qDoxTester = new QDoxTester(reporter);
for (int i = 0; i < args.length; i++) {
File file = new File(args[i]);
if (file.isDirectory()) {
qDoxTester.checkDirectory(file);
} else if (file.getName().endsWith(".java")) {
qDoxTester.checkJavaFile(file);
} else if (file.getName().endsWith(".jar") || file.getName().endsWith(".zip")) {
qDoxTester.checkZipOrJarFile(file);
} else {
System.err.println("Unknown input <" + file.getName() + ">. Should be zip, jar, java or directory");
}
}
reporter.writeSummary();
}
private static class ConsoleReporter implements Reporter {
private final PrintStream out;
private int success;
private int failure;
private int error;
private int dotsWrittenThisLine;
public ConsoleReporter(PrintStream out) {
this.out = out;
}
public void success(String id) {
success++;
if (++dotsWrittenThisLine > 80) {
newLine();
}
out.print('.');
}
private void newLine() {
dotsWrittenThisLine = 0;
out.println();
out.flush();
}
public void parseFailure(String id, int line, int column, String reason) {
newLine();
out.println("* " + id);
out.println(" [" + line + ":" + column + "] " + reason);
failure++;
}
public void error(String id, Throwable throwable) {
newLine();
out.println("* " + id);
throwable.printStackTrace(out);
error++;
}
public void writeSummary() {
newLine();
out.println("-- Summary --------------");
out.println("Success: " + success);
out.println("Failure: " + failure);
out.println("Error : " + error);
out.println("Total : " + (success + failure + error));
out.println("-------------------------");
}
}
}
它包含一个名为checkZipOrJarFile(File file)的方法，也许它可以帮助我。但我找不到任何关于如何使用它的示例或教程。
欢迎任何帮助。
答案 0 :(得分：1)
不幸的是，QDox无法为您做到这一点（我来到这里寻找QDox对罐子的支持）。您在上面列出的QDox源代码仅用于测试是否可以通过QDox成功解析给定jar中的类。但是，该代码确实为您提供了如何使用标准java apis来做你想做的事情的线索：枚举在jar中的类。
以下是我正在使用的一些代码（我在这里提出了另一个答案：analyze jar file programmatically）
// Your jar file
JarFile jar = new JarFile(jarFile);
// Getting the files into the jar
Enumeration<? extends JarEntry> enumeration = jar.entries();
// Iterates into the files in the jar file
while (enumeration.hasMoreElements()) {
ZipEntry zipEntry = enumeration.nextElement();
// Is this a class?
if (zipEntry.getName().endsWith(".class")) {
// Relative path of file into the jar.
String className = zipEntry.getName();
// Complete class name
className = className.replace(".class", "").replace("/", ".");
// Load class definition from JVM - you may not need this, but I want to introspect the class
try {
Class<?> clazz = getClass().getClassLoader().loadClass(className);
// ... I then go on to do some intropsection
如果你真的不想像我那样反省这个类，你可以停在getName（）。此外，如果您特别想要查找包，可以在zip条目上使用zipEntry.isDirectory()。