添加filter 步骤

第一步：写个类eclipsFilter 继承 javax.servlet.Filter;

public class XXXFilter implements Filter {
	private FilterConfig config;
	/* (non-Javadoc)
	 * @see javax.servlet.Filter#destroy()
	 */
	@Override
	public void destroy() {
		this.config = null;
	}

	/* (non-Javadoc)
	 * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)
	 */
	@Override
	public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2) throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) arg1;
		HttpServletRequest request = (HttpServletRequest) arg0;
		String sessionId = SessionUtility.getSession(request).getId();
		response.setHeader("Cache-Control","no-cache");
		response.setHeader("Pragma","no-cache");
		arg2.doFilter(request, response);
	}

	/* (non-Javadoc)
	 * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
	 */
	@Override
	public void init(FilterConfig arg0) throws ServletException {
		this.config = arg0;
	}

}

 

第二步：配置web.xml

<web-app>
  <display-name>xxxxname</display-name>
    <filter>
        <filter-name>xxxxFilter</filter-name>
        <filter-class>servlet.xxxxFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>xxxxFilter</filter-name>   
        <url-pattern>/*</url-pattern> 
    </filter-mapping>
    
    <listener>
        <listener-class>ejb.session.xxxxxHttpSessionListener</listener-class>
    </listener>

	<servlet>
	    <servlet-name>xxxxServiceServlet</servlet-name>
	    <servlet-class>servlet.xxxxServiceServlet</servlet-class>
        <init-param>
            <param-name>debug</param-name>
            <param-value>false</param-value>
        </init-param>
	</servlet>
	<servlet-mapping>
	    <servlet-name>xxxxServiceServlet</servlet-name>
	    <url-pattern>/servlet/xxxxServiceServlet</url-pattern>
	</servlet-mapping>
   
  <session-config>
        <session-timeout>10</session-timeout>
    </session-config>
    
  <error-page>
    <error-code>404</error-code>
    <location>/jsp/error/PageNotFoundException.jsp</location>
  </error-page>
  <error-page>
    <exception-type>java.lang.Exception</exception-type>
    <location>/jsp/error/Exception.jsp</location>
  </error-page>      

</web-app>