一个初学Ibatis的问题
按照ibatis例子做得一个练习。
出现的错误查不到了，麻烦各位高手帮忙看下

package com.itcast;



import java.io.Reader;

import java.util.List;



import com.ibatis.sqlmap.client.SqlMapClient;



public class IStudentDAOImpl implements IStudentDAO {

	

	private static SqlMapClient sqlMapClient=null;

	static{

		try {

			Reader reader = com.ibatis.common.resources.Resources.getResourceAsReader("com/itcast/SqlMapConfig.xml");

			sqlMapClient = com.ibatis.sqlmap.client.SqlMapClientBuilder.buildSqlMapClient(reader);

			reader.close();

		} catch (Exception e) {

			// TODO: handle exception

			e.printStackTrace();

		}

		

	}

	public void addStudent(Student student) {

		// TODO Auto-generated method stub



	}



	public List<Student> queryAllStudnet() {

		// TODO Auto-generated method stub

		List<Student> StudentList =null;

		try {

			StudentList = sqlMapClient.queryForList("selectAllStudent");

		} catch (Exception e) {

			// TODO: handle exception

			e.printStackTrace();

		}

		return StudentList;

	}



	/**

	 * @param args

	 */

	public static void main(String[] args) {

		// TODO Auto-generated method stub

		IStudentDAO dao=new IStudentDAOImpl();

		for(Student student:dao.queryAllStudnet()){

			System.out.println(student);

		}



	}



}

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE sqlMapConfig      
    PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"      
    "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">
<sqlMapConfig> 
<properties resource="com/itcast/SqlMap.properties"/>
<transactionManager type="JDBC"> 
<dataSource type="SIMPLE"> 
<property value="${driver}" name="JDBC.Driver"/>
<property value="${url}" name="JDBC.ConnectionURL"/>
<property value="${username}" name="JDBC.Username"/>
<property value="${password}" name="JDBC.Password"/>
</dataSource>
</transactionManager>
<sqlMap resource="com/itcast/student.xml" />
</sqlMapConfig>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap  PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"        
    "http://ibatis.apache.org/dtd/sql-map-2.dtd"> 
    <sqlMap>
    <typeAlias alias="Studnet" type="com.itcast.Student"/>
    <select id="selectAllStudent" resultClass="Student">
    select * from TB_USER
    </select>
    
    </sqlMap>

------解决方案--------------------
<typeAlias alias="Studnet" type="com.itcast.Student"/>这个的alias的Student，你写成了Studnet