com.jn.langx.util

类 ClassLoaders

java.lang.Object

com.jn.langx.util.ClassLoaders

public class ClassLoaders
extends Object

字段概要

字段

限定符和类型	字段和说明
static ClassLoaderAccessor	CLASS_CL_ACCESSOR
static ClassLoaderAccessor	SYSTEM_CL_ACCESSOR
static ClassLoaderAccessor	THREAD_CL_ACCESSOR

方法概要

限定符和类型	方法和说明
static boolean	addUrl(URLClassLoader urlClassLoader, URL jarUrl)
static boolean	addUrl(URLClassLoader urlClassLoader, URL jarUrl, boolean force)
static <I,O> O	doAction(ClassLoader threadContextClassLoader, Function<I,O> action, I input)
static Class<?>	forName(String fqcn) Attempts to load the specified class name from the current thread's context class loader, then the current ClassLoader (ClassUtils.class.getClassLoader()), then the system/application ClassLoader (ClassLoader.getSystemClassLoader(), in that order.
static ClassLoader	getClassLoader(Class<?> clazz)
static ClassLoader	getContextClassLoader()
static ClassLoader	getDefaultClassLoader()
static ClassLoader	getExtClassLoader()
static JarFile	getJarFile(Class<?> klass)
static URL	getJarUrl(Class<?> klass)
static InputStream	getResourceAsStream(String name)
static ClassLoader	getSystemClassLoader()
static boolean	hasClass(String classFQN, ClassLoader classLoader)
static boolean	isAvailable(String fullyQualifiedClassName)
static Class	loadClass(String className)
static Class	loadClass(String className, Class basedClass)
static Class	loadClass(String className, ClassLoader classLoader)
static Class	loadImplClass(String className, ClassLoader classLoader, Class superClass)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

THREAD_CL_ACCESSOR

public static final ClassLoaderAccessor THREAD_CL_ACCESSOR

从以下版本开始:

3.4.1

CLASS_CL_ACCESSOR

public static final ClassLoaderAccessor CLASS_CL_ACCESSOR

从以下版本开始:

3.4.1

SYSTEM_CL_ACCESSOR

public static final ClassLoaderAccessor SYSTEM_CL_ACCESSOR

从以下版本开始:

3.4.1

方法详细资料

getClassLoader

public static ClassLoader getClassLoader(Class<?> clazz)

getContextClassLoader

public static ClassLoader getContextClassLoader()

getExtClassLoader

public static ClassLoader getExtClassLoader()

getSystemClassLoader

public static ClassLoader getSystemClassLoader()

loadClass

public static Class loadClass(@NonNull
                              String className)
                       throws ClassNotFoundException

抛出:

ClassNotFoundException

loadClass

public static Class loadClass(@NonNull
                              String className,
                              @Nullable
                              Class basedClass)
                       throws ClassNotFoundException

抛出:

ClassNotFoundException

loadClass

public static Class loadClass(@NonNull
                              String className,
                              @Nullable
                              ClassLoader classLoader)
                       throws ClassNotFoundException

抛出:

ClassNotFoundException

loadImplClass

public static Class loadImplClass(@NonNull
                                  String className,
                                  @Nullable
                                  ClassLoader classLoader,
                                  Class superClass)
                           throws ClassNotFoundException

抛出:

ClassNotFoundException

doAction

public static <I,O> O doAction(@NonNull
                               ClassLoader threadContextClassLoader,
                               @NonNull
                               Function<I,O> action,
                               @Nullable
                               I input)

getDefaultClassLoader

public static ClassLoader getDefaultClassLoader()

hasClass

public static boolean hasClass(@NonNull
                               String classFQN,
                               @Nullable
                               ClassLoader classLoader)

forName

public static Class<?> forName(String fqcn)
                        throws ClassNotFoundException

Attempts to load the specified class name from the current thread's context class loader, then the current ClassLoader (ClassUtils.class.getClassLoader()), then the system/application ClassLoader (ClassLoader.getSystemClassLoader(), in that order. If any of them cannot locate the specified class, an UnknownClassException is thrown (our RuntimeException equivalent of the JRE's ClassNotFoundException.

参数:

fqcn - the fully qualified class name to load

返回:

the located class

抛出:

ClassNotFoundException - if the class cannot be found.

从以下版本开始:

3.4.1

isAvailable

public static boolean isAvailable(String fullyQualifiedClassName)

从以下版本开始:

3.4.1

getResourceAsStream

public static InputStream getResourceAsStream(String name)

从以下版本开始:

3.4.2

addUrl

public static boolean addUrl(URLClassLoader urlClassLoader,
                             URL jarUrl)

参数:

urlClassLoader - a url class loader

jarUrl - the url for a jar

从以下版本开始:

3.6.6

addUrl

public static boolean addUrl(URLClassLoader urlClassLoader,
                             URL jarUrl,
                             boolean force)

参数:

urlClassLoader - a url class loader

jarUrl - the url for a jar

从以下版本开始:

3.6.6

getJarUrl

public static URL getJarUrl(Class<?> klass)

参数:

klass -

返回:

从以下版本开始:

3.6.6

getJarFile

public static JarFile getJarFile(Class<?> klass)

参数:

klass -

返回:

从以下版本开始:

3.6.6