1. import org.dom4j.Document;  
2. import org.dom4j.Element; 
3. import org.dom4j.io.SAXReader;

try {              File f = new File(filename);              if (!f.exists()) {                  System.out.println("  Error : Config file doesn‘t exist!");                  System.exit(1);              }              SAXReader reader = new SAXReader();              Document doc;              doc = reader.read(f);              Element root = doc.getRootElement();              Element data;              Iterator<?> itr = root.elementIterator("VALUE");              data = (Element) itr.next();                config.server = data.elementText("server").trim();              config.user = data.elementText("user").trim();              config.pass = data.elementText("pass").trim();              config.port = data.elementText("port").trim();              config.dbname = data.elementText("dbname").trim();            } catch (Exception ex) {              System.out.println("Error : " + ex.toString());          }  

<?xml version="1.0" encoding="UTF-8"?>  <CONFIG>      <VALUE>          <!-- mysql连接设置 -->          <server>127.0.0.1</server>          <dbname>users</dbname>          <user>root</user>          <pass>pass</pass>          <port>3306</port>      </VALUE>  </CONFIG> 

Properties prop = new Properties();//        ClassLoader classLoader = this.getClass().getClassLoader();//        InputStream is = classLoader.getResourceAsStream("/healthfile.properties");        ServletContext context = this.getServletContext();        InputStream is = context.getResourceAsStream("/WEB-INF/classes/healthfile.properties");        prop.load(is);        is.close();        String implClass = prop.getProperty("impl.class");        String statichtmlLocalRootPath = prop.getProperty("statichtml.local.rootPath");