使用j2se api读取properties文件的六种方法
　　
　　1.使用java.util.properties类的load()方法
　　
　　示例： inputstream in = lnew bufferedinputstream(new fileinputstream(name));
　　properties p = new properties();
　　p.load(in);
　　
　　2.使用java.util.resourcebundle类的getbundle()方法
　　
　　示例： resourcebundle rb = resourcebundle.getbundle(name, locale.getdefault());
　　
　　3.使用java.util.propertyresourcebundle类的构造函数
　　
　　示例： inputstream in = new bufferedinputstream(new fileinputstream(name));
　　resourcebundle rb = new propertyresourcebundle(in);
　　
　　4.使用class变量的getresourceasstream()方法
　　
　　示例： inputstream in = jproperties.class.getresourceasstream(name);
　　properties p = new properties();
　　p.load(in);
　　
　　5.使用class.getclassloader()所得到的java.lang.classloader的getresourceasstream()方法
　　
　　示例： inputstream in = jproperties.class.getclassloader().getresourceasstream(name);
　　properties p = new properties();
　　p.load(in);
　　
　　6.使用java.lang.classloader类的getsystemresourceasstream()静态方法
　　
　　示例： inputstream in = classloader.getsystemresourceasstream(name);
　　properties p = new properties();
　　p.load(in);
　　
　　补充
　　
　　servlet中可以使用javax.servlet.servletcontext的getresourceasstream()方法
　　
　　示例：inputstream in = context.getresourceasstream(path);
　　properties p = new properties();
　　p.load(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
　　
　　jproperties.java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 2 of the license should be included with this distribution in
　　** the file license, as well as license.html. if the license is not
　　** included with this distribution, you may find a copy at the fsf web
　　** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
　　** free software foundation, 675 mass ave, cambridge, ma 02139 usa.
　　**
　　** this software is provided as-is 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 com.kindani;
　　
　　//import javax.servlet.servletcontext;
　　import java.util.*;
　　import java.io.inputstream;
　　import java.io.ioexception;
　　import java.io.bufferedinputstream;
　　import java.io.fileinputstream;
　　
　　/**
　　* 使用j2se api臻取properties文件的六肺方法
　　* user: synform
　　* date: 2005/07/12
　　* time: 18:40:55
　　* to change this template use file | settings | file templates.
　　*/
　　public class jproperties {
　　
　　public final static int by_properties = 1;
　　public final static int by_resourcebundle = 2;
　　public final static int by_propertyresourcebundle = 3;
　　public final static int by_class = 4;
　　public final static int by_classloader = 5;
　　public final static int by_system_classloader = 6;
　　
　　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);
　　p.load(in);
　　} else if (type == by_resourcebundle) {
　　resourcebundle rb = resourcebundle.getbundle(name, locale.getdefault());
　　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 (jproperties.class.equals(new jproperties().getclass()));
　　in = jproperties.class.getresourceasstream(name);
　　assert (in != null);
　　p.load(in);
　　//　　　　return new jproperties().getclass().getresourceasstream(name);
　　} else if (type == by_classloader) {
　　assert (jproperties.class.getclassloader().equals(new jproperties().getclass().getclassloader()));
　　in = jproperties.class.getclassloader().getresourceasstream(name);
　　assert (in != null);
　　p.load(in);
　　//　　　　 return new jproperties().getclass().getclassloader().getresourceasstream(name);
　　} else if (type == by_system_classloader) {
　　in = classloader.getsystemresourceasstream(name);
　　assert (in != null);
　　p.load(in);
　　}
　　
　　if (in != null) {
　　in.close();
　　}
　　return p;
　　
　　}
　　
　　// ---------------------------------------------- servlet used
　　/*
　　public static properties loadproperties(servletcontext context, string path) throws ioexception {
　　assert (context != null);
　　inputstream in = context.getresourceasstream(path);
　　assert (in != null);
　　properties p = new properties();
　　p.load(in);
　　in.close();
　　return p;
　　}
　　*/
　　
　　// ---------------------------------------------- support class
　　
　　/**
　　* resourcebundle adapter class.
　　*/
　　public static class resourcebundleadapter extends properties {
　　public resourcebundleadapter(resourcebundle rb) {
　　assert (rb instanceof java.util.propertyresourcebundle);
　　this.rb = rb;
　　java.util.enumeration e = rb.getkeys();
　　while (e.hasmoreelements()) {
　　object o = e.nextelement();
　　this.put(o, rb.getobject((string) o));
　　}
　　}
　　
　　private resourcebundle rb = null;
　　
　　public resourcebundle getbundle(string basename) {
　　return resourcebundle.getbundle(basename);
　　}
　　
　　public resourcebundle getbundle(string basename, locale locale) {
　　return resourcebundle.getbundle(basename, locale);
　　}
　　
　　public resourcebundle getbundle(string basename, locale locale, classloader loader) {
　　return resourcebundle.getbundle(basename, locale, loader);
　　}
　　
　　public enumeration<string> getkeys() {
　　return rb.getkeys();
　　}
　　
　　public locale getlocale() {
　　return rb.getlocale();
　　}
　　
　　public object getobject(string key) {
　　return rb.getobject(key);
　　}
　　
　　public string getstring(string key) {
　　return rb.getstring(key);
　　}
　　
　　public string[] getstringarray(string key) {
　　return rb.getstringarray(key);
　　}
　　
　　protected object handlegetobject(string key) {
　　return ((propertyresourcebundle) rb).handlegetobject(key);
　　}
　　
　　}
　　
　　}
　　
　　
　　jpropertiestest.java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 2 of the license should be included with this distribution in
　　** the file license, as well as license.html. if the license is not
　　** included with this distribution, you may find a copy at the fsf web
　　** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
　　** free software foundation, 675 mass ave, cambridge, ma 02139 usa.
　　**
　　** this