cn.hutool.core.lang

Class JarClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

cn.hutool.core.lang.JarClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class JarClassLoader
extends URLClassLoader

外部Jar的类加载器

Author:

Looly

Constructor Summary

Constructors

Constructor and Description
JarClassLoader() 构造
JarClassLoader(URL[] urls) 构造
JarClassLoader(URL[] urls, ClassLoader classLoader) 构造

Method Summary

Modifier and Type	Method and Description
JarClassLoader	addJar(File jarFileOrDir) 加载Jar文件，或者加载目录
JarClassLoader	addURL(File dir) 增加class所在目录或文件 如果为目录，此目录用于搜索class文件，如果为文件，需为jar文件
void	addURL(URL url)
static JarClassLoader	load(File dir) 加载Jar到ClassPath
static JarClassLoader	loadJar(File jarFile) 加载Jar到ClassPath
static void	loadJar(URLClassLoader loader, File jarFile) 加载Jar文件到指定loader中
static URLClassLoader	loadJarToSystemClassLoader(File jarFile) 加载Jar文件到System ClassLoader中

Methods inherited from class java.net.URLClassLoader

close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

JarClassLoader

public JarClassLoader()

构造

JarClassLoader

public JarClassLoader(URL[] urls)

构造

Parameters:

urls - 被加载的URL

JarClassLoader

public JarClassLoader(URL[] urls,
                      ClassLoader classLoader)

构造

Parameters:

urls - 被加载的URL

classLoader - 类加载器

Method Detail

load

public static JarClassLoader load(File dir)

加载Jar到ClassPath

Parameters:

dir - jar文件或所在目录

Returns:

JarClassLoader

loadJar

public static JarClassLoader loadJar(File jarFile)

加载Jar到ClassPath

Parameters:

jarFile - jar文件或所在目录

Returns:

JarClassLoader

loadJar

public static void loadJar(URLClassLoader loader,
                           File jarFile)
                    throws UtilException

加载Jar文件到指定loader中

Parameters:

loader - URLClassLoader

jarFile - 被加载的jar

Throws:

UtilException - IO异常包装和执行异常

loadJarToSystemClassLoader

public static URLClassLoader loadJarToSystemClassLoader(File jarFile)

加载Jar文件到System ClassLoader中

Parameters:

jarFile - 被加载的jar

Returns:

System ClassLoader

addJar

public JarClassLoader addJar(File jarFileOrDir)

加载Jar文件，或者加载目录

Parameters:

jarFileOrDir - jar文件或者jar文件所在目录

Returns:

this

addURL

public void addURL(URL url)

Overrides:

addURL in class URLClassLoader

addURL

public JarClassLoader addURL(File dir)

增加class所在目录或文件
如果为目录，此目录用于搜索class文件，如果为文件，需为jar文件

Parameters:

dir - 目录

Returns:

this

Since:

4.4.2