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使用JSE API读取Properties文件的六种方法 使用javautilProperties类的load()方法 示例 InputStream in = lnew BufferedInputStream(new FileInputStream(name)); Properties p = new Properties(); pload(in); 使用javautilResourceBundle类的getBundle()方法 示例 ResourceBundle rb = ResourceBundlegetBundle(name LocalegetDefault()); 使用javautilPropertyResourceBundle类的构造函数 示例 InputStream in = new BufferedInputStream(new FileInputStream(name)); ResourceBundle rb = new PropertyResourceBundle(in); 使用class变量的getResourceAsStream()方法 示例 InputStream in = JPropertiesclassgetResourceAsStream(name); Properties p = new Properties(); pload(in); 使用classgetClassLoader()所得到的javalangClassLoader的getResourceAsStream()方法 示例 InputStream in = JPropertiesclassgetClassLoader()getResourceAsStream(name); Properties p = new Properties(); pload(in); 使用javalangClassLoader类的getSystemResourceAsStream()静态方法 示例 InputStream in = ClassLoadergetSystemResourceAsStream(name); Properties p = new Properties(); pload(in); 补充 Servlet中可以使用javaxservletServletContext的getResourceAsStream()方法 示例InputStream in = contextgetResourceAsStream(path); Properties p = new Properties(); pload(in); 完整的示例可以参考附件文件 如何上传文件谁知道请告诉以下 只好把source都贴上来了 JPropertiesjava文件 /** ** This program is free software ** ** You may redistribute it and/or modify it under the terms of the GNU ** General Public License as published by the Free Software Foundation ** Version of the license should be included with this distribution in ** the file LICENSE as well as l If the license is not ** included with this distribution you may find a copy at the FSF web ** site at or or you may write to the ** Free Software Foundation Mass Ave Cambridge MA USA ** ** THIS SOFTWARE IS PROVIDED ASIS WITHOUT WARRANTY OF ANY KIND ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY THE AUTHOR ** OF THIS SOFTWARE ASSUMES _NO_ RESPONSIBILITY FOR ANY ** CONSEQUENCE RESULTING FROM THE USE MODIFICATION OR ** REDISTRIBUTION OF THIS SOFTWARE **/ package comkindani; //import javaxservletServletContext; import javautil*; import javaioInputStream; import javaioIOException; import javaioBufferedInputStream; import javaioFileInputStream; /** * 使用JSE API読取Properties文件的六种方法 * User: SYNFORM * Date: // * Time: :: * To change this template use File | Settings | File Templates */ public class JProperties { public final static int BY_PROPERTIES = ; public final static int BY_RESOURCEBUNDLE = ; public final static int BY_PROPERTYRESOURCEBUNDLE = ; public final static int BY_CLASS = ; public final static int BY_CLASSLOADER = ; public final static int BY_SYSTEM_CLASSLOADER = ; public final static Properties loadProperties(final String name final int type) throws IOException { Properties p = new Properties(); InputStream in = null; if (type == BY_PROPERTIES) { in = new BufferedInputStream(new FileInputStream(name)); assert (in != null); pload(in); } else if (type == BY_RESOURCEBUNDLE) { ResourceBundle rb = ResourceBundlegetBundle(name LocalegetDefault()); assert (rb != null); p = new ResourceBundleAdapter(rb); } else if (type == BY_PROPERTYRESOURCEBUNDLE) { in = new BufferedInputStream(new FileInputStream(name)); assert (in != null); ResourceBundle rb = new PropertyResourceBundle(in); p = new ResourceBundleAdapter(rb); } else if (type == BY_CLASS) { assert (JPropertiesclassequals(new JProperties()getClass())); in = JPropertiesclassgetResourceAsStream(name); assert (in != null); pload(in); //return new JProperties()getClass()getResourceAsStream(name); } else if (type == BY_CLASSLOADER) { assert (JPropertiesclassgetClassLoader()equals(new JProperties()getClass()getClassLoader())); in = JPropertiesclassgetClassLoader()getResourceAsStream(name); assert (in != null); pload(in); // return new JProperties()getClass()getClassLoader()getResourceAsStream(name); } else if (type == BY_SYSTEM_CLASSLOADER) { in = ClassLoadergetSystemResourceAsStream(name); assert (in != null); pload(in); } if (in != null) { inclose(); } return p; } // servlet used /* public static Properties loadProperties(ServletContext context String path) throws IOException { assert (context != null); InputStream in = contextgetResourceAsStream(path); assert (in != null); Properties p = new Properties(); pload(in); inclose(); return p; } */ // support class /** * ResourceBundle Adapter class */ public static class ResourceBundleAdapter extends Properties { public ResourceBundleAdapter(ResourceBundle rb) { assert (rb instanceof javautilPropertyResourceBundle); thisrb = rb; javautilEnumeration e = rbgetKeys(); while (ehasMoreElements()) { Object o = enextElement(); thisput(o rbgetObject((String) o)); } } private ResourceBundle rb = null; public ResourceBundle getBundle(String baseName) { return ResourceBundlegetBundle(baseName); } public ResourceBundle getBundle(String baseName Locale locale) { return ResourceBundlegetBundle(baseName locale); } public ResourceBundle getBundle(String baseName Locale locale ClassLoader loader) { return ResourceBundlegetBundle(baseName locale loader); } public Enumeration<String> getKeys() { return rbgetKeys(); } public Locale getLocale() { return rbgetLocale(); } public Object getObject(String key) { return rbgetObject(key); } public String getString(String key) { return rbgetString(key); } public String[] getStringArray(String key) { return rbgetStringArray(key); } protected Object handleGetObject(String key) { return ((PropertyResourceBundle) rb)handleGetObject(key); } } } JPropertiesTestjava文件 /** ** This program is free software ** ** You may redistribute it and/or modify it under the terms of the GNU ** General Public License as published by the Free Software Foundation ** Version of the license should be included with this distribution in ** the file LICENSE as well as l If the license is not ** included with this distribution you may find a copy at the FSF web ** site at or or you may write to the ** Free Software Foundation Mass Ave Cambridge MA USA ** ** THIS |
