node.js - 如何绕过express中的中间件

Question

我正在尝试使用 next('route') 绕过其中一个中间件。即使这样，控制权也会传递给下一个中间件，而不是传递给路由路径。

fun1 = (req,res,next) =>{
    res.locals.isLogin = true;
    next('route');
}

fun2 = (req,res,next) =>{
    res.locals.isLogin1 = true;
    next();
}

app.use(fun1);
app.use(fun2);

app.get('/',(req,res,next)=>{
    res.write('<h1>Hello ' + res.locals.isLogin + ' and ' + res.locals.isLogin1);
    res.end();
});

Answer 1

next('route') 工具不会跳过通过 use() 函数添加的中间件，请参阅:Using middleware

Documentation : To skip the rest of the middleware functions from a router middleware stack, call next('route') to pass control to the next route. NOTE: next('route') will work only in middleware functions that were loaded by using the app.METHOD() or router.METHOD() functions.

因此，要跳过 fun2，这里是对代码的更改，

fun1 = (req,res,next) =>{
    res.locals.isLogin = true;
    next('route');
}

fun2 = (req,res,next) =>{
    res.locals.isLogin1 = true;
    next();
}

app.get('/', fun1, fun2);

app.get('/',(req,res,next)=>{
    res.write('<h1>Hello ' + res.locals.isLogin + ' and ' + res.locals.isLogin1);
    res.end();
});