取得web.xml里面的参数: web.xml的部分代码 <filter> <filter-name>t</filter-name> <filter-class>test.t</filter-class> <init-param> <param-name>kk</param-name> <param-value>kk-value</param-value> </init-param> </filter> <filter-mapping> <filter-name>t</filter-name> <url-pattern>/servlet/t</url-pattern> </filter-mapping> filter的代码 public void init(FilterConfig filterConfig) throws ServletException ...{ // TODO Auto-generated method stub System.out.println("12lsx"); Map<String,String> params = new HashMap<String,String>(); for (Enumeration e = filterConfig.getInitParameterNames(); e.hasMoreElements(); ) ...{ String name = (String) e.nextElement(); System.out.println("name="+name); String value = filterConfig.getInitParameter(name); System.out.println("value="+value); params.put(name, value); } }