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如何保持登录状态

[英]How do keep signed in works

原文 2013-06-30 06:46:58 0 1 java/ web-applications

I would like to know how the "Keep Signed In" works and how it is achieved. 我想知道“保持登录状态”如何工作以及如何实现。 Suppose I have enabled keep signed in on an website. 假设我启用了保持登录网站的功能。 So if I open that web site even after restarting my machine then it will auto sign in. 因此，即使重新启动计算机后仍打开该网站，它将自动登录。

How this can be achieved with java. 用Java如何做到这一点。

1 个解决方案

After signing in, you could create a unique string, place it in the database along with the user ID who signed in, then store it as a cookie on the browser. 登录后，您可以创建一个唯一的字符串，将其与登录的用户ID一起放置在数据库中，然后将其作为cookie存储在浏览器中。 Next time the user visits the site, if he's not signed in, then read the value of the cookie and see if a user is present in the database with that value. 下次用户访问该网站时（如果尚未登录），请读取Cookie的值，并查看该数据库中是否存在用户。 If so, sign him in and continue. 如果是这样，请登录并继续。

签名的 Apk 不断崩溃 - Signed Apk Keep crashing

如何将签名的 jar 文件转换为 an.exe 文件并保持签名？ - How can I convert a signed jar file to an .exe file and keep it signed?

在Java中使用自签名证书时SSL的工作原理 - How SSL works in case of self signed certificates in Java

如何获得Java Applet签名？ - How do I get a java applet signed?

如何在Java签名的applet中进行代理隧道 - How to do proxy tunnelling in java signed applet

如何在签名的applet中使用多个jar？ - How do I use multiple jars in a signed applet?

如何在位掩码中使用有符号整数类型中的每一位？ - How do i use every bit in a signed integer type in a bitmask?

如何从签名证书创建信任库和密钥库？ - How do I create truststore and keystore from the signed certificate?

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如何使用 Firebase 检索已登录用户的 UID 下的数据 - How do I retrieve data under UID for the signed in user with Firebase

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相关问题 签名的 Apk 不断崩溃 - Signed Apk Keep crashing 如何将签名的 jar 文件转换为 an.exe 文件并保持签名？ - How can I convert a signed jar file to an .exe file and keep it signed? 在Java中使用自签名证书时SSL的工作原理 - How SSL works in case of self signed certificates in Java 如何获得Java Applet签名？ - How do I get a java applet signed? 如何在Java签名的applet中进行代理隧道 - How to do proxy tunnelling in java signed applet 如何在签名的applet中使用多个jar？ - How do I use multiple jars in a signed applet? 如何在位掩码中使用有符号整数类型中的每一位？ - How do i use every bit in a signed integer type in a bitmask? 如何从签名证书创建信任库和密钥库？ - How do I create truststore and keystore from the signed certificate? 如何从签名的 jar 文件中创建或提取证书 - How do I create or extract the certificate from a signed jar file 如何使用 Firebase 检索已登录用户的 UID 下的数据 - How do I retrieve data under UID for the signed in user with Firebase

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