一、工具类代码ResourceLoadUtil.java
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import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.util.ArrayList; import java.util.Enumeration; import java.util.List; public class ResourceLoadUtil { /** * @param args */ public static void main(String[] args) { System.out.println( "ByClazz...\n--------------------------" ); System.out.println(loadResourceByClazz(String. class , "/java/lang/String.class" )); System.out.println(loadResourceByClazz(String. class , "/ResourceLoadUtil.class" )); System.out.println(); System.out.println( "ByClasLoader...\n--------------------------" ); System.out.println(loadResourceByClassLoader( "java/lang/String.class" )); System.out.println(loadResourceByClassLoader( "ResourceLoadUtil.class" )); System.out.println(); System.out.println( "sByClasLoader...\n--------------------------" ); System.out.println(loadResourcesByClassLoader( "java/lang/String.class" )); System.out.println(loadResourcesByClassLoader( "ResourceLoadUtil.class" )); System.out.println(loadResourcesByClassLoader( "struts-plugin.xml" )); } /** * 根据Class加载资源文件 * * @param clazz * @param path * 以'/'开头的路径: 使用绝对路径寻找文件(以ClassPath为根路径开始)<br> * 否则: 使用相对路径寻找文件(相对于clazz位置路径开始) * @return */ public static InputStream loadResourceByClazz(Class<?> clazz, String path) { return clazz.getResourceAsStream(path); } /** * 根据ClassLoader加载资源文件(单个), 使用默认的ClassLoader! * * @param path * 不能以'/'开头的路径 * @return */ public static InputStream loadResourceByClassLoader(String path) { return loadResourceByClassLoader( null , path); } /** * 根据ClassLoader加载资源文件(单个), 使用默认的ClassLoader! * * @param path * 不能以'/'开头的路径 * @return */ public static InputStream loadResourceByClassLoader(ClassLoader cl, String path) { if (cl == null ) { cl = Thread.currentThread().getContextClassLoader(); } return cl.getResourceAsStream(path); } /** * 根据ClassLoader加载资源文件(多个),使用默认的ClassLoader! * * @param path * 不能以'/'开头的路径 * @return */ public static List<URL> loadResourcesByClassLoader(String path) { return loadResourcesByClassLoader( null , path); } /** * 根据ClassLoader加载资源文件(多个),使用指定的ClassLoader! * * @param path * 不能以'/'开头的路径 * @return */ public static List<URL> loadResourcesByClassLoader(ClassLoader cl, String path) { if (cl == null ) { cl = Thread.currentThread().getContextClassLoader(); } List<URL> urlLst = new ArrayList<URL>(); try { Enumeration<URL> urlsEnum = cl.getResources(path); while (urlsEnum.hasMoreElements()) { URL url = (URL) urlsEnum.nextElement(); urlLst.add(url); } } catch (IOException e) { e.printStackTrace(); } return urlLst; } } |
二、执行结果
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ByClazz... -------------------------- sun.net.www.protocol.jar.JarURLConnection$JarURLInputStream @11cfb549 java.io.BufferedInputStream @a422ede ByClasLoader... -------------------------- sun.net.www.protocol.jar.JarURLConnection$JarURLInputStream @7f12f614 java.io.BufferedInputStream @35d9dc39 sByClasLoader... -------------------------- [jar:file:/D:/Java/jdk1. 6 .0_25/jre/lib/rt.jar!/java/lang/String. class ] [file:/E:/workspace/JBDS/Spring+Struts2-Integration/target/classes/ResourceLoadUtil. class ] [jar:file:/E:/360data/%e9% 87 %8d%e8%a6% 81 %e6% 95 %b0%e6%8d%ae/.m2/repository/org/apache/struts/struts2-spring-plugin/ 2.3 . 4.1 /struts2-spring-plugin- 2.3 . 4.1 .jar!/struts-plugin.xml, jar:file:/E:/360data/%e9% 87 %8d%e8%a6% 81 %e6% 95 %b0%e6%8d%ae/.m2/repository/org/apache/struts/struts2-config-browser-plugin/ 2.3 . 4.1 /struts2-config-browser-plugin- 2.3 . 4.1 .jar!/struts-plugin.xml] |
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原文链接:http://feticoolo.iteye.com/blog/1695190