SpringMVC框架在Controller中对于Session的处理

Controller中的代码：

@Controller
@SessionAttributes({"User","Y"})		//此处定义此Controller中将要创建和使用哪些session中的对象名
public class UserController {
@Resource
private UserService userService;

@RequestMapping("user_login")
public String login(User user, ModelMap modelMap){
//modelMap自动与session对应，你在往modelmap中添加对应属性便是往session中添加属性（前提是你已经在@SessionAttributes注解中定义好）
User userTemp = this.userService.findByName(user.getName());
if((userTemp.getState() == 1) && (userTemp.getPassword().equals(user.getPassword())){
modelMap.addAttribute("User", userTemp);		//成功将userTemp存入session中
modelMap.addAttribute("Y",1);					//成功将1存入session中
return "/user/index";
}else {
return "index";
}

@RequestMapping("user_logout")
public String logout(@ModelAttribute("User") User user, SessionStatus sessionStatus){
//@ModelAttribute("User")相当于将session中名为"User"的对象注入user对象中
//sessionStatus中的setComplete方法可以将session中的内容全部清空
sessionStatus.setComplete();
return "index";
}
}

User类的代码：

public class User {
/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.id
*
* @mbggenerated
*/
private Integer id;

/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.name
*
* @mbggenerated
*/
private String name;

/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.password
*
* @mbggenerated
*/
private String password;

/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.email
*
* @mbggenerated
*/
private String email;

/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.activecode
*
* @mbggenerated
*/
private String activecode;

/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.state
*
* @mbggenerated
*/
private Integer state;

/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.id
*
* @return the value of user.id
*
* @mbggenerated
*/
public Integer getId() {
return id;
}

/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.id
*
* @param id the value for user.id
*
* @mbggenerated
*/
public void setId(Integer id) {
this.id = id;
}

/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.name
*
* @return the value of user.name
*
* @mbggenerated
*/
public String getName() {
return name;
}

/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.name
*
* @param name the value for user.name
*
* @mbggenerated
*/
public void setName(String name) {
this.name = name == null ? null : name.trim();
}

/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.password
*
* @return the value of user.password
*
* @mbggenerated
*/
public String getPassword() {
return password;
}

/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.password
*
* @param password the value for user.password
*
* @mbggenerated
*/
public void setPassword(String password) {
this.password = password == null ? null : password.trim();
}

/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.email
*
* @return the value of user.email
*
* @mbggenerated
*/
public String getEmail() {
return email;
}

/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.email
*
* @param email the value for user.email
*
* @mbggenerated
*/
public void setEmail(String email) {
this.email = email == null ? null : email.trim();
}

/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.activecode
*
* @return the value of user.activecode
*
* @mbggenerated
*/
public String getActivecode() {
return activecode;
}

/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.activecode
*
* @param activecode the value for user.activecode
*
* @mbggenerated
*/
public void setActivecode(String activecode) {
this.activecode = activecode == null ? null : activecode.trim();
}

/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.state
*
* @return the value of user.state
*
* @mbggenerated
*/
public Integer getState() {
return state;
}

/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.state
*
* @param state the value for user.state
*
* @mbggenerated
*/
public void setState(Integer state) {
this.state = state;
}

总结：

如果用@SessionAttributes注解的话，博主暂时没有找出好方法可以单独删除session中的一个对象，即便是在action中传入参数HttpSession依然是只能获得session中的内容，无法删除，如果大家找到好办法能解决这个问题，还望能在评论中留下解决方法或者联系方式，博主将感激不尽！！