fixed package path return null in executable jar
This commit is contained in:
jinyu
parent
fa2bef41fd
commit
c195989e33
@ -28,180 +28,192 @@ import java.util.jar.JarFile;
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* @see
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* @see
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*/
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*/
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public final class ClassUtil {
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public final class ClassUtil {
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private final static String POINT = ".";
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private final static String POINT = ".";
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private final static String CLASS = ".class";
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private final static String CLASS = ".class";
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/**
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/**
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* 获取某个包下所有的class信息
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* 获取某个包下所有的class信息
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*
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*
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* @param packageName
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* @param packageName
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* 包名
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* 包名
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* @return
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* @return
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*/
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*/
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public static List<Class<?>> getClasses(String packageName) {
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public static List<Class<?>> getClasses(String packageName) {
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String packageFileName = packageName.replace(POINT, File.separator);
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String packageFileName = packageName.replace(POINT, File.separator);
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URL fullPath = getDefaultClassLoader().getResource(packageFileName);
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URL fullPath = getDefaultClassLoader().getResource(packageFileName);
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String protocol = fullPath.getProtocol();
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if (fullPath == null) {
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if (protocol.equals(ServerToolkits.PROTOCOL_FILE)) {
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fullPath = ClassUtil.class.getClassLoader().getResource(
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try {
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packageFileName);
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File dir = new File(fullPath.toURI());
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}
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return findClassesByFile(dir, packageName);
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String protocol = fullPath.getProtocol();
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} catch (URISyntaxException e) {
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if (protocol.equals(ServerToolkits.PROTOCOL_FILE)) {
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throw new RuntimeException(e);
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try {
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}
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File dir = new File(fullPath.toURI());
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} else if (protocol.equals(ServerToolkits.PROTOCOL_JAR)) {
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return findClassesByFile(dir, packageName);
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try {
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} catch (URISyntaxException e) {
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return findClassesByJar(((JarURLConnection) fullPath.openConnection()).getJarFile(), packageName);
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throw new RuntimeException(e);
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} catch (IOException e) {
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}
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throw new RuntimeException(e);
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} else if (protocol.equals(ServerToolkits.PROTOCOL_JAR)) {
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}
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try {
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}
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return findClassesByJar(
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return null;
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((JarURLConnection) fullPath.openConnection())
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}
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.getJarFile(),
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packageName);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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return null;
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}
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/**
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/**
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* 扫描目录下所有的class对象
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* 扫描目录下所有的class对象
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*
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*
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* @param dir
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* @param dir
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* 文件目录
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* 文件目录
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* @param packageName
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* @param packageName
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* 包的全限类名
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* 包的全限类名
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* @return
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* @return
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*/
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*/
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private static List<Class<?>> findClassesByFile(File dir, String packageName) {
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private static List<Class<?>> findClassesByFile(File dir, String packageName) {
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List<Class<?>> classes = new ArrayList<Class<?>>();
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List<Class<?>> classes = new ArrayList<Class<?>>();
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File[] files = dir.listFiles(new FilenameFilter() {
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File[] files = dir.listFiles(new FilenameFilter() {
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@Override
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@Override
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public boolean accept(File file, String name) {
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public boolean accept(File file, String name) {
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return file.isDirectory() || file.getName().endsWith(CLASS);
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return file.isDirectory() || file.getName().endsWith(CLASS);
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}
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}
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});
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});
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if (files != null) {
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if (files != null) {
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for (File file : files) {
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for (File file : files) {
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if (file.isDirectory()) {
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if (file.isDirectory()) {
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classes.addAll(findClassesByFile(file, packageName + POINT + file.getName()));
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classes.addAll(findClassesByFile(file, packageName + POINT
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} else {
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+ file.getName()));
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try {
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} else {
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classes.add(Class.forName(packageName + POINT + file.getName().replace(CLASS, "")));
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try {
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} catch (ClassNotFoundException e) {
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classes.add(Class.forName(packageName + POINT
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;
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+ file.getName().replace(CLASS, "")));
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}
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} catch (ClassNotFoundException e) {
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}
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;
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}
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}
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}
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}
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return classes;
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}
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}
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}
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return classes;
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}
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/**
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/**
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* 扫描jar包下所有的class对象
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* 扫描jar包下所有的class对象
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*
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*
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* @param jar
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* @param jar
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* jar包对象
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* jar包对象
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* @param packageName
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* @param packageName
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* 包的全限类名
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* 包的全限类名
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* @return
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* @return
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*/
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*/
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private static List<Class<?>> findClassesByJar(JarFile jar, String packageName) {
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private static List<Class<?>> findClassesByJar(JarFile jar,
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List<Class<?>> classes = new ArrayList<Class<?>>();
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String packageName) {
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Enumeration<JarEntry> jarEntries = jar.entries();
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List<Class<?>> classes = new ArrayList<Class<?>>();
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while (jarEntries.hasMoreElements()) {
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Enumeration<JarEntry> jarEntries = jar.entries();
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JarEntry jarEntry = jarEntries.nextElement();
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while (jarEntries.hasMoreElements()) {
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if (jarEntry.isDirectory()) {
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JarEntry jarEntry = jarEntries.nextElement();
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continue;
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if (jarEntry.isDirectory()) {
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}
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continue;
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String className = jarEntry.getName().replace(File.separator, POINT);
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}
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if (!className.startsWith(packageName) || !className.endsWith(CLASS)) {
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String className = jarEntry.getName()
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continue;
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.replace(File.separator, POINT);
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}
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if (!className.startsWith(packageName)
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try {
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|| !className.endsWith(CLASS)) {
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classes.add(Class.forName(className.replace(CLASS, "")));
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continue;
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} catch (ClassNotFoundException e) {
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}
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;
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try {
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}
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classes.add(Class.forName(className.replace(CLASS, "")));
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}
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} catch (ClassNotFoundException e) {
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return classes;
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;
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}
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}
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}
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return classes;
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}
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public static Object deepClone(Object obj) {
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public static Object deepClone(Object obj) {
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ByteArrayOutputStream bos = null;
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ByteArrayOutputStream bos = null;
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ObjectOutputStream oos = null;
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ObjectOutputStream oos = null;
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ByteArrayInputStream bis = null;
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ByteArrayInputStream bis = null;
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ObjectInputStream ois = null;
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ObjectInputStream ois = null;
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try {
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try {
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bos = new ByteArrayOutputStream();
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bos = new ByteArrayOutputStream();
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oos = new ObjectOutputStream(bos);
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oos = new ObjectOutputStream(bos);
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oos.writeObject(obj);
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oos.writeObject(obj);
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bis = new ByteArrayInputStream(bos.toByteArray());
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bis = new ByteArrayInputStream(bos.toByteArray());
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ois = new ObjectInputStream(bis);
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ois = new ObjectInputStream(bis);
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return ois.readObject();
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return ois.readObject();
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} catch (IOException e) {
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} catch (IOException e) {
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throw new RuntimeException(e);
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throw new RuntimeException(e);
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} catch (ClassNotFoundException e) {
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} catch (ClassNotFoundException e) {
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throw new RuntimeException(e);
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throw new RuntimeException(e);
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} finally {
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} finally {
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try {
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try {
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if (bos != null) {
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if (bos != null) {
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bos.close();
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bos.close();
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}
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}
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if (oos != null) {
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if (oos != null) {
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oos.close();
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oos.close();
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}
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}
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if (bis != null) {
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if (bis != null) {
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bis.close();
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bis.close();
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}
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}
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if (ois != null) {
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if (ois != null) {
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ois.close();
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ois.close();
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}
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}
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} catch (IOException e) {
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} catch (IOException e) {
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;// ignore
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;// ignore
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}
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}
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}
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}
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}
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}
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/**
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/**
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* 获得泛型类型
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* 获得泛型类型
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*
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*
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* @param object
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* @param object
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* @return
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* @return
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*/
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*/
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public static Class<?> getGenericType(Class<?> clazz) {
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public static Class<?> getGenericType(Class<?> clazz) {
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if (clazz == Object.class) {
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if (clazz == Object.class) {
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return null;
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return null;
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}
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}
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Type type = clazz.getGenericSuperclass();
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Type type = clazz.getGenericSuperclass();
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if (type instanceof ParameterizedType) {
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if (type instanceof ParameterizedType) {
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ParameterizedType ptype = ((ParameterizedType) type);
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ParameterizedType ptype = ((ParameterizedType) type);
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Type[] args = ptype.getActualTypeArguments();
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Type[] args = ptype.getActualTypeArguments();
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return (Class<?>) args[0];
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return (Class<?>) args[0];
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}
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}
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return getGenericType(clazz.getSuperclass());
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return getGenericType(clazz.getSuperclass());
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}
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}
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public static ClassLoader getDefaultClassLoader() {
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public static ClassLoader getDefaultClassLoader() {
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ClassLoader cl = null;
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ClassLoader cl = null;
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try {
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try {
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cl = Thread.currentThread().getContextClassLoader();
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cl = Thread.currentThread().getContextClassLoader();
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} catch (Throwable ex) {
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} catch (Throwable ex) {
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// Cannot access thread context ClassLoader - falling back...
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// Cannot access thread context ClassLoader - falling back...
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}
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}
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if (cl == null) {
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if (cl == null) {
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// No thread context class loader -> use class loader of this class.
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// No thread context class loader -> use class loader of this class.
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cl = ClassUtil.class.getClassLoader();
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cl = ClassUtil.class.getClassLoader();
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if (cl == null) {
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if (cl == null) {
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// getClassLoader() returning null indicates the bootstrap
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// getClassLoader() returning null indicates the bootstrap
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// ClassLoader
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// ClassLoader
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try {
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try {
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cl = ClassLoader.getSystemClassLoader();
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cl = ClassLoader.getSystemClassLoader();
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} catch (Throwable ex) {
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} catch (Throwable ex) {
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// Cannot access system ClassLoader - oh well, maybe the
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// Cannot access system ClassLoader - oh well, maybe the
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// caller can live with null...
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// caller can live with null...
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}
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}
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}
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}
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}
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}
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return cl;
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return cl;
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}
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}
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public static void main(String[] args) {
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public static void main(String[] args) {
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System.err.println(getClasses("com.foxinmy.weixin4j.qy.event"));
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System.err.println(getClasses("com.foxinmy.weixin4j.qy.event"));
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}
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}
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}
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}
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