Question

我是struts的新手，我一直在尝试构建一个简单的struts应用程序。我有错误，我过去几天一直试图解决，但无法解决它。以下是我使用的文件 -

的web.xml

    <?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app    PUBLIC
    "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

    <display-name>Hello World Struts Application</display-name>

    <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>3</param-value>
        </init-param>
        <init-param>
             <param-name>detail</param-name>
             <param-value>3</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>


    <welcome-file-list>
        <welcome-file>view.jsp</welcome-file>
    </welcome-file-list>

</web-app>

的struts-config.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
        "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>

    <form-beans>
        <bean name="myForm" type="com.myForm" />
    </form-beans>

    <action-mappings>
        <action path="/view" name="myForm" type="com.myAction" validate="false">
                <forward name="success" path="/first" />
        </action>
        <action path="/view"
                forward="/view.jsp"/>
        <action path="/first" type="com.myAction" validate="false">
            <forward name="success" path="/first.jsp" />
        </action>
    </action-mappings>
</struts-config>

view.jsp的

<%@page contentType="text/html" pageEncoding="UTF-8"%>

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>

    <body>
        <form action="first.do">
            Enter name :
            <input type="text" name="name"/>
            <input type="submit" value="Enter"/>
        </form>

    </body>
</html>

first.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>

    <body>
        Welcome!!!!!!!!

        <bean:write name="myForm" property="st"/>
    </body>
</html>

myForm.java（Bean类） -

package com;

public class myForm extends org.apache.struts.action.ActionForm {

    private String st;

    public String getSt()
    {
        return st;
    }

    public void setSt(String st)
    {
        this.st=st;
    }

    public myForm(String st)
    {
        this.st=st;
    }
}

myAction.java（Action class） -

package com;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.myForm;

public class myAction extends Action {
    public ActionForward execute(ActionMapping mapping, ActionForm form,
    HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException {

        myForm form1=(myForm) form;

        String s="Karthikeyan";

        form1.setSt(s);

        //RequestDispatcher reqDispatcher = getRequestDispatcher("view.jsp");
        //reqDispatcher.forward(request,response);




        return (mapping.findForward("success"));
    }
}

当我编译myAction.java时，它会出现以下错误 -

myAction.java:11: cannot find symbol
symbol  : class myForm
location: package com
import com.myForm;
          ^
myAction.java:18: cannot find symbol
symbol  : class myForm
location: class com.myAction
                myForm form1=(myForm) form;
                ^
myAction.java:18: cannot find symbol
symbol  : class myForm
location: class com.myAction
                myForm form1=(myForm) form;
                              ^

此外，当我运行tomcat服务器时，我收到以下错误 -

org.apache.commons.digester.Digester error
SEVERE: Parse Error at line 9 column 43: Element type "bean" must be declared.

和

org.apache.commons.digester.Digester error
SEVERE: Parse Error at line 10 column 15: The content of element type "form-beans" must match "(form-bean)*".

请帮帮我。

Answer 1

你写了错误的struts-config.xml，你应该改变form-beans格式如下：

    <form-beans>
        <form-bean name="myForm" type="com.myForm"></form-bean>
    </form-beans>

Struts1错误 - Action类和Struts-config.xml文件中的错误

1 个答案: