写servlet无法继承httpservlet..
今天用eclipse开始写servlet,继承httpservlet方法,然后总是这样提示:
Access restriction: The type HttpServlet is not accessible due to restriction on required library C:\Program Files\Java\jre7\lib\ext\servlet-api.jar
都配置好了,classpath,然后网上说要到如servlet-api.jar到工程去,也导入了(不知道对不对),求求大牛帮忙解决一下啊,谢谢。