Question

我使用放置在netbeans 6.9中的struts 1.3.10，/web-inf/ folder个lib文件。资源不可用404显示http错误。没有创建任何目录来单独放置动作，servlet文件。 al1文件在默认包中。我是j2ee的新手请帮我解决我的问题..

提前谢谢..

的index.jsp：

    <body>
    <h1>Hello World!</h1>
    <a href="mainpage">Main page</a>
    </body>

mainpage.java：

        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet mainpage</title>");  
        out.println("</head>");
        out.println("<body>");
        out.println("<form action='strapp.action' method='post'>");
        out.println("<input type='text' name='user'/><br>");
       out.println("<input type='submit' name='Submit it'/>");
       out.println("</form>");
        out.println("</body>");
        out.println("</html>");

strapp.java：

     public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    String c=(String)request.getParameter("user");
    if(c==null)
    {
        return mapping.findForward("error");
    }
    return mapping.findForward("success");
}
 }

success.java：

       protected void processRequest(HttpServletRequest request,       HttpServletResponse                     response)
    throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    try {

        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet success</title>");  
        out.println("</head>");
        out.println("<body>");
        out.println("<h1>Servlet success at </h1>");
        out.println("<p>Success page</p>");
        out.println("</body>");
        out.println("</html>");

    } finally { 
        out.close();
    }
   }

error.java：

       out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet error</title>");  
        out.println("</head>");
        out.println("<body>");
        out.println("<h1>Servlet error at </h1>");
        out.println("<p>Error page</p>");
        out.println("</body>");
        out.println("</html>");

的struts-config.xml：

   <action-mappings>
    <action name="strapp" class="strapp" path="/strapp.action" >
    <forward name="success" path="/success.java"/>
    <forward name="error" path="/error.java"/>
        </action>
    </action-mappings>

的web.xml：

      <?xml version="1.0" encoding="UTF-8" ?>

      <!DOCTYPE struts-config PUBLIC
      "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
      "http://jakarta.apache.org/struts/dtds/struts-config_1_3.dtd">

    <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
        <param-name>config</param-name>
        <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
        <param-name>debug</param-name>
        <param-value>2</param-value>
    </init-param>
    <init-param>
        <param-name>detail</param-name>
        <param-value>2</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
    <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>

Answer 1

的struts-config.xml：

<action-mappings>
<action name="strapp" class="strapp" path="/strapp.action" >
<forward name="success" path="/success.java"/>
<forward name="error" path="/error.java"/>
    </action>
</action-mappings>

success.java和error.java的含义是什么，必须在web.xml中指定servlet，否则结构无法找到正确的目标。你可以看到结构的例子。

Struts应用程序资源不可用使用操作servlet的http 404错误

1 个答案: