Spring Security -- 退出登录

Spring Security默认的退出登录URL为/logout,退出登录后,Spring Security会做如下处理:

  • 使当前的sesion失效;
  • 清除与当前用户关联的RememberMe记录;
  • 清空当前的SecurityContext;
  • 重定向到登录页;

Spring Security允许我们通过配置来更改上面这些默认行为。

一、自定义退出登录行为

我们在Spring Security配置中添加如下配置:

......
.and()
    .logout()
    .logoutUrl("/signout")
    //.logoutSuccessUrl("/signout/success")
    .deleteCookies("JSESSIONID")
.and()
......

上面配置了退出登录的URL为/signout,退出成功后跳转的URL为/signout/success,退出成功后删除名称为JSESSIONID的cookie。

在LoginController中添加/signout/success对应的方法:

    @ResponseBody
    @RequestMapping("/signout/success")
    public String signout() {
        return "退出成功,请重新登录";
    }

接着将/signout/success添加到免认证路径里。启动项目,登录后访问/signout:

可看到退出成功,并且请求重定向到了/signout/success。
除了指定logoutUrl外,我们也可以通过logoutSuccessHandler指定退出成功处理器来处理退出成功后的逻辑:

                .and()
                .logout()
                .logoutUrl("/signout")
                .logoutSuccessUrl("/signout/success")
                .logoutSuccessHandler(logoutSuccessHandler)   //处理退出成功
                .deleteCookies("JSESSIONID")

在包com.goldwind.handler下创建类CustomLogoutSuccessHandler :

package com.goldwind.handler;

import org.springframework.http.HttpStatus;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
import org.springframework.stereotype.Service;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @Author: zy
 * @Description:自定义退出成功逻辑
 * @Date: 2020/2/16
 */
@Service
public class CustomLogoutSuccessHandler implements LogoutSuccessHandler {
    @Override
    public void onLogoutSuccess(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Authentication authentication) throws IOException, ServletException {
        httpServletResponse.setStatus(HttpStatus.UNAUTHORIZED.value());
        httpServletResponse.setContentType("application/json;charset=utf-8");
        httpServletResponse.getWriter().write("退出成功,请重新登录");
    }
}

效果和上面一样:

参考文章:

[1] Spring Security退出登录(转载)

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