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SpringAOP實(shí)現(xiàn)登錄驗(yàn)證的操作代碼

更新時間：2022年01月17日 09:53:36 作者：Mr_zoupeng

這篇文章主要介紹了SpringAOP實(shí)現(xiàn)登錄驗(yàn)證功能，本文通過實(shí)例代碼給大家介紹的非常詳細(xì)，對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友可以參考下

要求任何操作都建立在已經(jīng)登錄的基礎(chǔ)上，登錄操作除外。。。。

使用Spring AOP不僅簡單，還不會對其他部件中產(chǎn)生影響

以下具體代碼實(shí)現(xiàn)：

package com.joey.util;
 
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.ModelAndView;
 
import javax.servlet.http.HttpServletRequest;

/**
 * 登錄驗(yàn)證AOP
 */
@Component
@Aspect
public class LoginHelper {
 
    private static Logger logger = LogManager.getLogger(LoginHelper.class.getName());
 
    @Pointcut("within(com.joey.controller..*)&&!within(com.joey.controller.IndexController)") // IndexController中寫了登錄方法
    public void login() {
    }
 
    @Around("login()")
    public Object auth(ProceedingJoinPoint joinPoint) throws Throwable {
        // 獲取session中的用戶信息
     HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        String username = (String) request.getSession().getAttribute("username");
 
        if (username == null) {
            logger.info("未登錄");
            return new ModelAndView("redirect:/login");
        }
        logger.info("username: " + username);
        return joinPoint.proceed();
    }
}
既然要從session中獲取用戶信息，那么肯定要先保存的?？梢宰缘卿浄椒ㄖ斜４鎢sername

package com.joey.controller;

import com.joey.model.User;
import com.joey.service.UserService;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

@Controller
@RequestMapping("/")
public class IndexController {
private static Logger logger = LogManager.getLogger(IndexController.class.getName());

@Resource(name = "userService")
private UserService userService;

@RequestMapping(value = {"", "index", "login"}, method = RequestMethod.GET)
public String index() {
    return "login";
}

/**
 * 管理員/普通用戶登陸
 *
 * @param username
 * @param password
 * @return
 */
@RequestMapping(value = {"login"}, method = RequestMethod.POST)
public ModelAndView login(HttpServletRequest request, String username, String password) {
    int id;
    try {
        id = userService.login(username, password);
    } catch (Exception e) {
        e.printStackTrace();
        logger.info("not found");
        return new ModelAndView("login")
                .addObject("msg", "Try Again");
    }
    User user = userService.selectByPrimaryKey(id);
    request.getSession().setAttribute("username", user.getName());  // 保存username到session看這里
    return new ModelAndView(user.getAdmin() == 1 ? "admin" : "home")
            .addObject("id", user.getId())
            .addObject("username", user.getName())
            .addObject("description", user.getDescription())
            .addObject("isAdmin", user.getAdmin() == 1 ? "admin" : "user");
}

@RequestMapping(value = "home", method = RequestMethod.GET)
public String home() {
    return "admin";
}

}

到此這篇關(guān)于SpringAOP實(shí)現(xiàn)登錄驗(yàn)證的文章就介紹到這了,更多相關(guān)SpringAOP登錄驗(yàn)證內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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