讀取絕對路徑的properties檔案關鍵程式碼如下：

Properties configProperties = new Properties();
FileInputStream in = new FileInputStream(path);
configProperties.load(in);
in.close();

Properties configProperties = new Properties();
FileInputStream in = new FileInputStream(file);
configProperties.load(in);
in.close();
OutputStream fos = new FileOutputStream(file);
configProperties.setProperty(key, val);
configProperties.store(fos, key);