package com.jdw.service.impl; import java.util.List; import javax.annotation.PostConstruct; import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service; import com.jdw.bean.User;
import com.jdw.dao.UserMapper;
import com.jdw.service.UserService; @Service("userService")
public class UserServiceImpl implements UserService { @Autowired
// 注入
private UserMapper userMapper; private List<User> users = null; public UserServiceImpl() {
super(); } @PostConstruct
private void init() {
System.out.println("start init..");
users = userMapper.selectList();
System.out.println("已经初始化users...");
} @Override
public List<User> getUsers() {
// TODO Auto-generated method stub
return users;
} }
如果spring容器初始化之后,如果需要加载数据,可以这么做。。。