jetbrick.util

Class ClassLoaderUtils

java.lang.Object

jetbrick.util.ClassLoaderUtils

public class ClassLoaderUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
ClassLoaderUtils()

Method Summary

Modifier and Type	Method and Description
static String	getCanonicalClassName(String qualifiedClassName) 将 Java 类名转为 Class.forName() 可以载入的类名格式.
static InputStream	getClassAsStream(Class<?> clazz) Returns an input stream for reading the specified class.
static InputStream	getClassAsStream(String qualifiedClassName) Returns an input stream for reading the specified class.
static String	getClassFileName(Class<?> clazz) 获取一个 class 所代表的文件名
static String	getClassFileName(String qualifiedClassName) 获取一个 class 所代表的文件名
static ClassLoader	getDefault() Returns current thread's context class loader
static URL	getResource(String name) Finds the resource with the given name.
static URL	getResource(String name, ClassLoader classLoader) Finds the resource with the given name.
static InputStream	getResourceAsStream(String name) Returns an input stream for reading the specified resource.
static InputStream	getResourceAsStream(String name, ClassLoader classLoader) Returns an input stream for reading the specified resource.
static Class<?>	loadClass(String qualifiedClassName) 使用默认的 ClassLoader 去载入类.
static Class<?>	loadClass(String qualifiedClassName, ClassLoader loader) 使用默认的 ClassLoader 去载入类.
static Class<?>	loadClassEx(String qualifiedClassName) 使用默认的 ClassLoader 去载入类.
static Class<?>	loadClassEx(String qualifiedClassName, ClassLoader classLoader) 使用指定的 ClassLoader 去载入类.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassLoaderUtils

public ClassLoaderUtils()

Method Detail

getDefault

public static ClassLoader getDefault()

Returns current thread's context class loader

loadClass

public static Class<?> loadClass(String qualifiedClassName)

使用默认的 ClassLoader 去载入类.

Returns:

null if class not found

loadClass

public static Class<?> loadClass(String qualifiedClassName,
                                 ClassLoader loader)

使用默认的 ClassLoader 去载入类.

Returns:

null if class not found

loadClassEx

public static Class<?> loadClassEx(String qualifiedClassName)
                            throws ClassNotFoundException

使用默认的 ClassLoader 去载入类.

Throws:

ClassNotFoundException

loadClassEx

public static Class<?> loadClassEx(String qualifiedClassName,
                                   ClassLoader classLoader)
                            throws ClassNotFoundException

使用指定的 ClassLoader 去载入类.

Throws:

ClassNotFoundException

getCanonicalClassName

public static String getCanonicalClassName(String qualifiedClassName)

将 Java 类名转为 Class.forName() 可以载入的类名格式.

 getCanonicalClassName("int") == "int";
 getCanonicalClassName("int[]") == "[I";
 getCanonicalClassName("java.lang.String") == "java.lang.String";
 getCanonicalClassName("java.lang.String[]") == "[Ljava.lang.String;";
 

getResource

public static URL getResource(String name)

Finds the resource with the given name.

Parameters:

name - - The resource name

Returns:

A URL object for reading the resource, or null if the resource could not be found

getResource

public static URL getResource(String name,
                              ClassLoader classLoader)

Finds the resource with the given name.

Parameters:

name - - The resource name

Returns:

A URL object for reading the resource, or null if the resource could not be found

getResourceAsStream

public static InputStream getResourceAsStream(String name)
                                       throws IOException

Returns an input stream for reading the specified resource.

Throws:

IOException

getResourceAsStream

public static InputStream getResourceAsStream(String name,
                                              ClassLoader classLoader)
                                       throws IOException

Returns an input stream for reading the specified resource.

Throws:

IOException

getClassAsStream

public static InputStream getClassAsStream(Class<?> clazz)
                                    throws IOException

Returns an input stream for reading the specified class.

Throws:

IOException

getClassAsStream

public static InputStream getClassAsStream(String qualifiedClassName)
                                    throws IOException

Returns an input stream for reading the specified class.

Throws:

IOException

getClassFileName

public static String getClassFileName(Class<?> clazz)

获取一个 class 所代表的文件名

getClassFileName

public static String getClassFileName(String qualifiedClassName)

获取一个 class 所代表的文件名