org.hibernate.MappingException:求解

报的错误
org.hibernate.MappingException: Unknown entity: from Category
这个是映射路径

 <mapping resource="myStruts/entity/Category.hbm.xml"/>

这是我的配置文件

 <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping
        SYSTEM
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >

<hibernate-mapping package="myStruts.entity">
    <class name="Category" table="Category">
        <id name="id" >
            <generator class="identity" />
        </id>
        <property name="name" />


    </class>
</hibernate-mapping>

实体类

 package myStruts.entity;

public class Category {
    private int id;
    private  String name;

    public Category(){}

    public Category(int id, String name) {
        super();
        this.id = id;
        this.name = name;
    }

    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;
    }


}

未知的实体类，你看看你的名称对不对？里面属性对的上么

实体类路径，名称，属性有不对应的地方

发一下实体类的映射文件