使用J2SE API讀取Properties文件的六種方法

　　使用JSE API讀取Properties文件的六種方法
　　
　　使用javautilProperties類的load()方法
　　
　　示例 InputStream in = lnew BufferedInputStream(new FileInputStream(name));
　　Properties p = new Properties();
　　pload(in);
　　
　　使用javautilResourceBundle類的getBundle()方法
　　
　　示例 ResourceBundle rb = ResourceBundlegetBundle(name LocalegetDefault());
　　
　　使用javautilPropertyResourceBundle類的構造函數
　　
　　示例 InputStream in = new BufferedInputStream(new FileInputStream(name));
　　ResourceBundle rb = new PropertyResourceBundle(in);
　　
　　使用class變量的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類的getSystemResourceAsStream()靜態方法
　　
　　示例 InputStream in = ClassLoadergetSystemResourceAsStream(name);
　　Properties p = new Properties();
　　pload(in);
　　
　　補充
　　
　　Servlet中可以使用javaxservletServletContext的getResourceAsStream()方法
　　
　　示例InputStream in = contextgetResourceAsStream(path);
　　Properties p = new Properties();
　　pload(in);
　　
　　完整的示例可以參考附件文件
　　
　　如何上傳文件誰知道請告訴以下 只好把source都貼上來了
　　
　　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文件的六種方法
　　* 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
From:http://tw.wingwit.com/Article/program/Java/JSP/201311/19664.html