使用 Redis 作为会话存储的 NodeJs 抛出异常

Question

我正在尝试使用 NodeJs 和 Session。我跟踪了许多网站的代码。我想提到的最简单的一个是 <一href="https://medium.com/swlh/session-management-in-nodejs-using-redis-as-session-store-64186112aa9#:%7E:text =%20session%20ID%20是%20发送%20回%20到%20，%20特定%20session%20id%20在%20%20Redis%20存储中。” rel="nofollow noreferrer">使用 Redis 进行会话管理的示例 NodeJS 代码

论坛的其余部分都发现了类似的内容。我面临的问题是，当我不使用 Redis 作为会话存储时，一切正常。下面是从 redis 会话切换到内存会话的代码更改。

app.use(session({
    secret: 'secret$%^134',
    resave: false,
    saveUninitialized: false,
    cookie: {
        secure: false, // if true only transmit cookie over https
        httpOnly: false, // if true prevent client side JS from reading the cookie 
        maxAge: 1000 * 60 * 10 // session max age in miliseconds
    }
}))

但当我将 Redis 存储放回到示例中时，我开始收到异常客户端已关闭。启用 Redis 会话存储的代码是

const RedisStore = connectRedis(session)
//Configure redis client
const redisClient = redis.createClient({
    host: 'localhost',
    port: 6379
})
redisClient.on('error', function (err) {
    console.log('Could not establish a connection with redis. ' + err);
});
redisClient.on('connect', function (err) {
    console.log('Connected to redis successfully');
});
//Configure session middleware
app.use(session({
    store: new RedisStore({ client: redisClient }),
    secret: 'secret$%^134',
    resave: false,
    saveUninitialized: false,
    cookie: {
        secure: false, // if true only transmit cookie over https
        httpOnly: false, // if true prevent client side JS from reading the cookie 
        maxAge: 1000 * 60 * 10 // session max age in miliseconds
    }
}));

Answer 1

经过大量阅读后，我在 npmjs 网站上得到了答案。
redis-connect 包的 npmjs 站点

在版本 4 之后，需要进行少量代码更改。需要启用“传统模式”，并且需要在代码中进行明确的“连接”调用。

更改后的工作代码如下。添加了更改的注释。

const RedisStore = connectRedis(session)
//Configure redis client
const redisClient = redis.createClient({
    host: 'localhost',
    port: 6379,
    legacyMode:true //********New Addition - set legacy mode to true.*******
})
redisClient.on('error', function (err) {
    console.log('Could not establish a connection with redis. ' + err);
});
redisClient.on('connect', function (err) {
    console.log('Connected to redis successfully');
});
redisClient.connect(); //******** New Addition - Explicite connect call *********
//Configure session middleware
app.use(session({
    store: new RedisStore({ client: redisClient }),
    secret: 'secret$%^134',
    resave: false,
    saveUninitialized: false,
    cookie: {
        secure: false, // if true only transmit cookie over https
        httpOnly: false, // if true prevent client side JS from reading the cookie 
        maxAge: 1000 * 60 * 10 // session max age in miliseconds
    }
}));