SSH整合，DAO层save失效
我刚整合SSH 想试试一个小例子 结果调了半天还是出错。希望大家帮我看看~

login.JSP 表单post到 StudentAction

 <form action="StudentAction.action" method="post">

		 姓名：<input type="text" name="name"/><br>

		 年龄：<input type="text" name="age"/><br>

		 成绩：<input type="text" name="score"/><br>

		    <input type="submit" value="提交">

	 </form>

package action;



import java.util.List;



import model.Student;

import service.StudentService;



public class StudentAction 

{

	private StudentService studentService;

    private String name;

    private Integer age;

    private Integer score;

	private List studentList;

	

	/*set get method 省略*/



	public String execute() throws Exception

	{

		Student student =new Student();

		student.setName(name);

		student.setScore(score);

		student.setAge(age);

		if(name==null)

			{System.out.println("NAME NULL!");}

		else

			{System.out.println(""+student.getName()+student.getAge()+student.getScore());}

		studentService.getStudentDao().save(student);

		//studentList=studentService.getStudentDao().findAll();

		System.out.println("Action!");

		//System.out.println(studentList.size());

		return "success";

	}

}

这里说明一下，System.out.println是为了测试数据有没有传过来 结果证明传过来了

StudentService：

package service;



import dao.StudentDAO;



public class StudentService 

{

	private StudentDAO studentDao;



	public void save(){

		

	}

	

	public StudentDAO getStudentDao() {

		return studentDao;

	}



	public void setStudentDao(StudentDAO studentDao) 

	{

		this.studentDao = studentDao;

	}

	

}

StudentDAO里面我加了一句 我怀疑是save方法有问题  我在save方法后面print一下

package dao;

import java.util.List;

import model.Student;

import org.hibernate.LockMode;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.context.ApplicationContext;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;





public class StudentDAO extends HibernateDaoSupport  {

	     private static final Logger log = LoggerFactory.getLogger(StudentDAO.class);

		//property constants

	public static final String NAME = "name";

	public static final String AGE = "age";

	public static final String SCORE = "score";







	protected void initDao() {

		//do nothing

	}

    

    public void save(Student transientInstance) {

        log.debug("saving Student instance");

        try&nb