Spring与MyBatis整合

package com.fd.spring.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Select;

import com.fd.spring.model.Student;

public interface StudentMapper {
	@Select("select * from student")
	public List selAll();
}

package com.fd.spring.service;

import java.util.List;

import com.fd.spring.model.Student;

public interface StudentService {
	public List selAll();
}

package com.fd.spring.service.impl;

import java.util.List;

import com.fd.spring.mapper.StudentMapper;
import com.fd.spring.model.Student;
import com.fd.spring.service.StudentService;

public class StudentServiceImpl implements StudentService{
	private StudentMapper studentMapper;
	
	@Override
	public List selAll() {
		return studentMapper.selAll();
	}

	public StudentMapper getStudentMapper() {
		return studentMapper;
	}

	public void setStudentMapper(StudentMapper studentMapper) {
		this.studentMapper = studentMapper;
	}

}

package com.fd.spring.servlet;

import java.io.IOException;
import java.util.List;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.fd.spring.model.Student;
import com.fd.spring.service.StudentService;
import com.fd.spring.service.impl.StudentServiceImpl;

@WebServlet("/student")
public class StudentServlet extends HttpServlet{
	private StudentService studentService;
	@Override
	public void init(ServletConfig config) throws ServletException {
		super.init(config);
		WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
		studentService = wac.getBean("studentService", StudentServiceImpl.class);
		System.out.println("studentService = " + studentService);
	}
	
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		System.out.println("service...");
		List list = studentService.selAll();
		System.out.println("list.size() = " + list.size());
		req.setAttribute("list", list);
		req.getRequestDispatcher("index.jsp").forward(req, resp);
	}
}