Spring3_模拟Spring框架工作原理
用户模型类User.java
package com.bebig.model;
public class User {
private String username;
private String password;
public String getPassword() {
return password;
}
public String getUsername() {
return username;
}
public void setPassword(String password) {
this.password = password;
}
public void setUsername(String username) {
this.username = username;
}
}
数据访问接口UserDAO.java
package com.bebig.dao;
import com.bebig.model.User;
//Data Access Object数据访问接口
public interface UserDAO {
public void save(User u);
}
数据访问接口的实现UserDAOImpl.java
package com.bebig.dao.impl;
import com.bebig.dao.UserDAO;
import com.bebig.model.User;
//数据访问接口的实现
public class UserDAOImpl implements UserDAO {
@Override
public void save(User u) {
System.out.println("a user saved!");
}
}
逻辑业务层UserService.java
package com.bebig.service;
import com.bebig.dao.UserDAO;
import com.bebig.model.User;
//逻辑业务层
public class UserService {
private UserDAO userDAO;
public void add(User u) {
