使用JFig管理你的配置文件

由于JFig自身提供的方法稍有不便，故对其进行了封装，构建了一个静态类Config，并重载了JFig提供的所有public方法：

package com.someok.utils;import java.util.List;import java.util.Map;import java.util.Properties;import org.apache.log4j.Logger;import org.igfay.jfig.JFig;import org.igfay.jfig.JFigDictionary;import org.igfay.jfig.JFigException;import org.igfay.jfig.JFigIF;import org.igfay.jfig.JFigListener;import org.igfay.jfig.JFigLocator;import org.igfay.jfig.JFigLocatorIF;/*** Config是用来读取配置文件信息，是对JFig这个开源项目的二次封装。虽然牺牲了该项目的* 一些灵活性，但是更加便于使用。* 
需要详细了解 JFig， 可浏览其网站：JFig 下载* 
使用时需注意的是：reprocessConfiguration()方法尚未测试成功，怀疑是JVM的支持问题。* 故如需修改配置文件，还需重启服务器。
* Config可以直接在应用程序或是一般类的main方法中直接使用，不需进行初始化操作（已封装）。可参照main方法。
* base.config.xml是配置文件名，其内容格式如下：* 
* ** *    *    *    *    **    
*   *     *    
**    
*      *    
**    *    *    
*   *    *    
* * 
* 
注意：如include文件中的section与base.config.xml中的section重名，则以后者为准。
* @author 郁也风* @version 1.01, 2004-4-20*/public class Config {private static Logger log = Logger.getLogger(Config.class);private static JFigIF jFig;private static JFigLocatorIF jFigLoc;final public static String CONFIG_NAME = "base.config.xml";  // 缺省的配置文件名。此名称为硬编码，不可在外部更改final static String CONFIG_LOCALTION = "config.location";final static String CLASSPATH = "classpath";// 初始化配置属性static {//  System.setProperty("config.location", "classpath");//  System.setProperty("config.filename", "base.config.xml");jFigLoc = new JFigLocator(CONFIG_NAME);jFigLoc.setConfigLocation(CLASSPATH);jFig = JFig.getInstance(jFigLoc);}public static void main(String[] args) {System.out.println(Config.getValue("mail", "isChild"));System.out.println(Config.getValue("mail", "test.father"));System.out.println(Config.getValue("aaa", "bbb", "cccc"));System.out.println(System.getProperty("bruce"));Config.print();}/***  Add JFig listeners to list so they can be notified when there*  is a significant change in the configuration.**@param  listener  The feature to be added to the ConfigEventListener*      attribute*/public static void addConfigEventListener(JFigListener listener) {jFig.addConfigEventListener(listener);}/***  Print the values in the JFig dictionary.*/public static void print() {jFig.print();}/***  Reprocess the configuration creating a new config dictionary*/public static void reprocessConfiguration() throws JFigException {jFig.reprocessConfiguration();}/***  return the ConfigurationDictionary*  Made public so we can access this from a jsp and show the configuration*  via html.*/public static JFigDictionary getConfigDictionary() {return jFig.getConfigDictionary();}/***  Convenience method for getting values as array.*  The value is tokenized depending on the first token found in*  the following order: comma, semicolon, colon, space**/public static String[] getArrayValue(String section, String key) throws JFigException {return jFig.getArrayValue(section, key);}/***  Convenience method for getting values as boolean*/public static boolean getBooleanValue(String section, String key, String notFoundValue) {return jFig.getBooleanValue(section, key, notFoundValue);}/***  Convenience method for getting values as float**@param  section              Description of Parameter*@param  key                  Description of Parameter*@param  notFoundValue        Description of Parameter*@return                      The FloatValue value*@exception  JFigException  Description of Exception*/public static float getFloatValue(String section, String key, String notFoundValue) throws JFigException {return jFig.getFloatValue(section, key, notFoundValue);}/***  Convenience method for getting values as int*/public static int getIntegerValue(String section, String key) throws JFigException {return jFig.getIntegerValue(section, key);}/***  Convenience method for getting values as int, with default value*/public static int getIntegerValue(String section, String key, String notFoundValue) {return jFig.getIntegerValue(section, key, notFoundValue);}/***  Return the value for this section and key. If none found, return the* default value.** @param  section       Description of Parameter* @param  key           Description of Parameter* @param  defaultValue  Description of Parameter* @return               The Value value*/public static String getValue(String section, String key, String defaultValue) {return jFig.getValue(section, key, defaultValue);}/*** Return a list of all values starting with "key" in the section.* If section xxx contains x.1, x.2, and x.3,* getValuesStartingWith("xxx", "x.") returns a list containing* x.1, x.2, and x.3.** @param section* @param key* @param defaultValue* @return List*/public static List getValuesStartingWith(String section, String key) {return jFig.getValuesStartingWith(section, key);}/*** Return a map of all values starting with "key" in the scetcion.* If section xxx contains x.1=a, x.2=b, and x.3=c,* getValuesStartingWith("xxx", "x.") returns a map containing* x.1,a x.2,b and x.3,c.** @param section* @param key* @param defaultValue* @return List*/public static Map getEntriesStartingWith(String section, String key) {return jFig.getEntriesStartingWith(section, key);}/***  Call configParser to get the value for a key in a given section.**/public static String getValue(String section, String key) throws RuntimeException {String value;try {value = jFig.getValue(section, key);} catch (JFigException e) {log.error(e.toString());throw new RuntimeException(e.getMessage());}return value;}/*** Return an entire section as a Map*/public static Map getSection(String section) {return jFig.getSection(section);}/*** Return a section as a Properties object*/public static Properties getSectionAsProperties(String section) {return jFig.getSectionAsProperties(section);}/*** Return a section populated in a supplied Properties object.*/public static Properties getSectionAsProperties(String section, Properties properties) {return jFig.getSectionAsProperties(section, properties);}/***  Set a configuration value.*  Most values are set during initial parsing so this is rarely used.*/public static void setConfigurationValue(String sectionName, String keyString, String valueString) {jFig.setConfigurationValue(sectionName, keyString, valueString);}/***  Convenience method for getting values as array with default value.*/public static String[] getArrayValue(String section, String key, String notFoundValue) {return jFig.getArrayValue(section, key, notFoundValue);}}