获取classpath下路径的方法

    方法1(返回绝对路径)：
URL url = Thread.currentThread().getContextClassLoader().getResource(""font/simkai.ttf"");
String path = url.getPath();

    方法2：
    InputStream inputStream = JdbcUtil.class.getResourceAsStream("/jdbc.properties");
    以上方法的意思是在classpath路径下查找jdbc.properties。如要打成一个jar包形式建议用这个方法获取资源文件， 如用方法1获取是会有问题的，因为方法1是获取的绝对路径，运行java -jar test.jar后获取的路径会是 d:/test.jar!/jdbc.properties这种样子，导致路径不正确，多了个叹号，在Eclipse下运行正常。

    示例1：加载properties文件

Properties properties = new Properties();
InputStream inputStream = JdbcUtil.class.getResourceAsStream("/jdbc.properties");
try {
    properties.load(inputStream);
} catch (FileNotFoundException e1) {
    log.error(e1.getMessage(), e1);
} catch (IOException e1) {
    log.error(e1.getMessage(), e1);
} finally {
    try {
        inputStream.close();
    } catch (IOException e) {
                log.error(e);
    }
}
driver = properties.getProperty("jdbc.driver");
url = properties.getProperty("jdbc.url");
username = properties.getProperty("jdbc.username");
password = properties.getProperty("jdbc.password");

    示例2：加载xml文件

 InputStream in = GenerateBaseDataServiceImpl.class.getResourceAsStream("/tableInfo.xml");
      try {
            SAXReader reader = new SAXReader();
            Document doc = reader.read(in);
            Element root = doc.getRootElement();
            Iterator<?> iterator = root.elementIterator("baseData");
            Element subElement;
            String tableSchema;
            String tableName;
            String sqlStatement;
            TableInfo tableInfo = null;
            while (iterator.hasNext()) {
                subElement = (Element) iterator.next();
                tableSchema = subElement.attribute("tableSchema").getText();
                tableName = subElement.attribute("tableName").getText();
                Attribute sqlStatementAttribute = subElement.attribute("sqlStatement");
                tableInfo = new TableInfo();
                if (sqlStatementAttribute != null) {
                    sqlStatement = sqlStatementAttribute.getText();
                    tableInfo.setSqlStatement(sqlStatement);
                }
                tableInfo.setTableSchema(tableSchema);
                tableInfo.setTableName(tableName);
                tableInfoList.add(tableInfo);
            }
        } catch (DocumentException e) {
            log.error("读取基础数据的xml出错", e);
        } finally {
            try {
                in.close();
            } catch (IOException e) {
                log.error(e.getMessage(), e);
            }
        }

  

    方法3：在web工程下获取WEB-INF路径
    Constants.WEB_INF_PATH = servletContext.getRealPath("WEB-INF");