1.2. 配置Action

/index.jsp

/login.jsp

1.3. 编写Action

public String login(){

SysUser u = userService.login(user); if(u != null){ //登录成功

return SUCCESS; }else{

//登录失败

//准备登录失败的信息

this.addActionError(\登录名或密码错误\); return LOGIN; } }

1.4. 编写Service

? Service接口

public interface UserService {

public void saveUser(SysUser user);

public SysUser login(SysUser user); }

? Service实现

/**

* 用户登录 */

@Override

public SysUser login(SysUser user) { return userDao.login(user); }

1.5. 编写DAO

? DAO接口

public interface UserDao {

public void save(SysUser user);

public SysUser login(SysUser user); }