一个读写ini文件属性的例子

public final class INI {
     private final static Map<String, Map<String, Object>> iniFile = new HashMap<String, Map<String, Object>>();
    
     private INI(){};
    
     final public static synchronized void setValue(String section, String key,Object value) {
         Map<String,Object> sectionMap =iniFile.get(section);
         if(sectionMap==null){
             sectionMap = new HashMap<String,Object>();
             iniFile.put(section, sectionMap);
         }
         sectionMap.put(key, value);
     }
    
     final public static synchronized Object getValue(String section, String key) {
         Object obj = null;
         Map<String, Object> item = iniFile.get(section);
         if (item != null) {
             obj = item.get(key);
         }
         return obj;
     }
     //加载ini文件
     final public static synchronized void load(String path) throws IOException {
         BufferedReader reader = new BufferedReader(new FileReader(path));
         String str = reader.readLine();
         String section = null;
         while (str != null) {
             if (str.startsWith("[")&& str.endsWith("]")) {  //读取ini文件模块头
                 Map<String, Object> itemMap = new HashMap<String, Object>();
                 section = str.substring(1, str.length() - 1);//获取ini文件头
                 // System.out.println(section);
                 iniFile.put(section, itemMap);//把ini文件头放入map中
             }else if(str.indexOf("=")>0){
                 Map<String, Object> itemMap = iniFile.get(section);//获取对应的ini文件头 并读取key 和 value
                 String key = str.substring(0, str.indexOf("="));
                 String value = str.substring(str.indexOf("=") + 1);
                 itemMap.put(key, value);
             }
             str = reader.readLine();
         }
         reader.close();
     }
    
     final public static synchronized void write(String path) throws IOException {
         StringBuffer sb = new StringBuffer("");
         String crlf=System.getProperty("line.separator");//分隔符
         for (String section : iniFile.keySet()) {
             sb.append("[").append(section).append("]").append(crlf);
             Map<String, Object> map = iniFile.get(section);
             Set<String> keySet = map.keySet();
             for (String key : keySet) {
                 sb.append(key).append("=").append(map.get(key)).append(crlf);
             }
         }
        /* File file = new File(path);
         if (!file.exists()) {
             file.createNewFile();
         }*/
         BufferedWriter writer = new BufferedWriter(new FileWriter(path));
         writer.write(sb.toString());
         writer.flush();
         writer.close();
     }

}