【发布时间】：2021-09-26 03:41:10
【问题描述】：
我正在实施 Shiro 安全性并且我的登录实施正在运行，但注销似乎没有注销用户。我有一个注销链接，它指向调用 Shiro 注销代码的自定义 servlet。代码执行（我可以单步执行代码并在控制台中看到日志输出）但是，如果我在浏览器中按下后退按钮并重新加载原始页面，我可以进入该页面并且我不会被要求重新输入我的登录凭据。
我需要做什么来解决这个问题？
servlet 代码如下所示。完整的例子在这里：
https://github.com/NACHC-CAD/web-security-example
Servlet 代码：
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
Subject subject = SecurityUtils.getSubject();
log.info("Doing log off for user: ");
if(subject != null && subject.isAuthenticated()) {
subject.logout();
log.info("Subject has been logged off");
} else {
log.info("USER NOT FOUND, NOT LOGGED OFF");
}
log.info("User has been log offed");
}
登录代码：
@Slf4j
public class MyAppRealm extends SimpleAccountRealm {
/**
* Authentication method is based on SimpleAccountRealm doGetAuthenticationInfo(AuthenticationToken token) method.
*/
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
log.info("* * * DOING CUSTOM AUTHN * * *");
UsernamePasswordToken upToken = (UsernamePasswordToken) token;
String uid = upToken.getUsername();
String pwd = new String(upToken.getPassword());
log.info("Doing login for user: " + uid);
SimpleAccount account = null;
if(uid.equals("foo") && pwd.equals("bar")) {
account = new SimpleAccount("foo", "bar", getName());
account.setCredentials("bar");
account.addRole("ROLE_ADMIN");
} else {
account = null;
log.info("Credentials failed for user: " + uid);
}
// account.setObjectPermissions(permissions);
log.info("Done with custom authn");
return account;
}
/**
* Authorization method is based on SimpleAccountRealm doGetAuthorizationInfo(PrincipalCollection principals) method.
*/
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
log.info("* * * DOING CUSTOM AUTHZ * * *");
String username = getUsername(principals);
USERS_LOCK.readLock().lock();
try {
SimpleAccount rtn = this.users.get(username);
log.info("Done with custom authz.");
return rtn;
} finally {
USERS_LOCK.readLock().unlock();
}
}
}
web.xml
<!--
*
* shiro stuff
*
-->
<listener>
<listener-class>org.apache.shiro.web.env.EnvironmentLoaderListener</listener-class>
</listener>
<filter>
<filter-name>ShiroFilter</filter-name>
<filter-class>org.apache.shiro.web.servlet.ShiroFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>ShiroFilter</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
shiro.ini
# ---
#
# ini file for shiro
#
# ---
[main]
myRealm = org.nachc.examples.websecurity.shiro.util.realm.MyAppRealm
securityManager.realms = $myRealm
[users]
admin = admin, ROLE_ADMIN
[roles]
ROLE_ADMIN = *
[urls]
/app/** = authcBasic
--- 编辑 ---------------
看起来浏览器正在缓存凭据并在访问同一页面时重新发送。即使从新选项卡中的隐身窗口，如果我访问同一页面，浏览器也会将基本身份验证凭据添加到请求中。看起来这是 Chrome 添加的，作为其基本身份验证标准处理的一部分。更多信息在这里：How to clear basic authentication details in chrome（清除详细信息的方法非常手动且依赖于用户，如果您需要确保已注销的用户需要重新提供凭据，则不适合）。
--- 编辑 2 -----------------
根据下面接受的答案的建议，我能够通过使用 Shiro 实现基于表单的身份验证来解决这个问题。完整的例子在这里：
【问题讨论】：
标签： java authentication shiro