jdk中没有,如果你有tomcat有tomcat/lib/servlet中有,那你在classpath设置一下呀

解决方案 »

  1.   

    赞同楼上的!
    这里有很多相关的问题,你搜索一下!会找到很多。你需要在CLASSPATH中指明javax.servlet包。
    你用什么服务器?我的tomcat是3.2.1版本,我的servlet路径设的为:
    E:\TOMCAT\lib\servlet.jar; servlet.jar包含的类有:META-INF/
    META-INF/MANIFEST.MF
    javax/
    javax/servlet/
    javax/servlet/http/
    javax/servlet/jsp/
    javax/servlet/jsp/tagext/
    javax/servlet/http/Cookie.class
    javax/servlet/http/HttpServlet.class
    javax/servlet/http/NoBodyResponse.class
    javax/servlet/http/NoBodyOutputStream.class
    javax/servlet/http/HttpServletRequest.class
    javax/servlet/http/HttpServletResponse.class
    javax/servlet/http/HttpSession.class
    javax/servlet/http/HttpSessionBindingEvent.class
    javax/servlet/http/HttpSessionBindingListener.class
    javax/servlet/http/HttpSessionContext.class
    javax/servlet/http/HttpUtils.class
    javax/servlet/http/LocalStrings.properties
    javax/servlet/http/LocalStrings_es.properties
    javax/servlet/jsp/tagext/BodyContent.class
    javax/servlet/jsp/tagext/BodyTag.class
    javax/servlet/jsp/tagext/BodyTagSupport.class
    javax/servlet/jsp/tagext/Tag.class
    javax/servlet/jsp/tagext/TagAttributeInfo.class
    javax/servlet/jsp/tagext/TagData.class
    javax/servlet/jsp/tagext/TagExtraInfo.class
    javax/servlet/jsp/tagext/TagInfo.class
    javax/servlet/jsp/tagext/TagLibraryInfo.class
    javax/servlet/jsp/tagext/TagSupport.class
    javax/servlet/jsp/tagext/VariableInfo.class
    javax/servlet/jsp/HttpJspPage.class
    javax/servlet/jsp/JspEngineInfo.class
    javax/servlet/jsp/JspException.class
    javax/servlet/jsp/JspFactory.class
    javax/servlet/jsp/JspPage.class
    javax/servlet/jsp/JspTagException.class
    javax/servlet/jsp/JspWriter.class
    javax/servlet/jsp/PageContext.class
    javax/servlet/GenericServlet.class
    javax/servlet/RequestDispatcher.class
    javax/servlet/Servlet.class
    javax/servlet/ServletConfig.class
    javax/servlet/ServletContext.class
    javax/servlet/ServletException.class
    javax/servlet/ServletInputStream.class
    javax/servlet/ServletOutputStream.class
    javax/servlet/ServletRequest.class
    javax/servlet/ServletResponse.class
    javax/servlet/SingleThreadModel.class
    javax/servlet/UnavailableException.class
    javax/servlet/LocalStrings.properties 
      

  2.   

    把以下包加到CLASSPATH中就可以了!
    c:\tomcat\lib\ant.jar;
    c:\tomcat\lib\jasper.jar;
    c:\tomcat\lib\jaxp.jar;
    c:\tomcat\lib\parser.jar;
    c:\tomcat\lib\servlet.jar;
    c:\tomcat\lib\webserver.jar;