在Tomcat上通过eclipse运行项目时的404页面

Question

使用Struts2，我已经设置了一个非常简单的webapp但是当我在eclipese中运行它时出现404错误..这是我的所有代码和jar文件

网址： localhost：8985 / firststruts / index.jsp

Jar文件

1. commons-fileupload-1.3.1
2. 公地-IO-2.2
3. 公地琅-2.4
4. 共享记录-1.1.3
5. 共享记录-API-1.1
6. 的freemarker-2.3.19
7. javassist-3.11.0.GA
8. OGNL-3.0.6
9. struts2的核 - 2.3.16.3
10. XWork的核 - 2.3.16.3

struts.xml中

<?xml version="1.0" encoding="UTF-8" ?>  
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts  
Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">  
<struts>  
<package name="default" extends="struts-default">  

<action name="Product" class="com.javatpoint.Product">  
<result name="success">welcome.jsp</result>  
</action>  

</package>  
</struts>      

的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app>
<display-name>firstjsp</display-name>
<filter>  
<filter-name>struts2</filter-name>  
<filter-class>  
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter  
</filter-class>  
</filter>  
<filter-mapping>  
<filter-name>struts2</filter-name>  
<url-pattern>*</url-pattern>  
</filter-mapping>  
</web-app>

product.java

    public class Product {
    private int id;
    private String name;
    private float price;
    public int getId() {
    return id;
    }   
    public void setId(int id) {
     this.id = id;
    }


   public String getName() {
    return name;
   }

   public void setName(String name) {
    this.name = name;
   }

   public float getPrice() {
    return price;
   }

   public void setPrice(float price) {
    this.price = price;
   }

   public String execute() {
    return "success";
   }
   }

的welcome.jsp

<%@ taglib uri="/struts-tags" prefix="s" %>  

Product Id:<s:property value="id"/><br/>  
Product Name:<s:property value="name"/><br/>  
Product Price:<s:property value="price"/><br/>  

index.java

<%@ taglib uri="/struts-tags" prefix="s" %>  
<s:form action="product">  
<s:textfield name="id" label="Product Id"></s:textfield>  
<s:textfield name="name" label="Product Name"></s:textfield>  
<s:textfield name="price" label="Product Price"></s:textfield>  
<s:submit value="save"></s:submit>  
</s:form>  

我是struts2的新手，所以请帮我解决这个问题。