javascript - 如何修复 Node 中的 'ERROR _HTTP_INVALID_STATUS_CODE'？

Question

我收到一些错误，我不知道这是什么意思，请问有什么想法吗？这是错误:我不知道发生了什么，因为我以前从未遇到过这样的错误，并且我像往常一样使用 res.redirect 。我发现你应该使用 res.渲染，但我想重定向到一个页面而不是渲染该页面...

<小时/>

> Sun, 10 Feb 2019 18:47:15 GMT express deprecated res.redirect(url,
> status): Use res.redirect(status, url) instead at
> routes\placeorder.js:50:17 RangeError [ERR_HTTP_INVALID_STATUS_CODE]:
> Invalid status code: [object Object]
>     at ServerResponse.writeHead (_http_server.js:208:11)
>     at ServerResponse.writeHead (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\on-headers\index.js:55:19)
>     at ServerResponse.writeHead (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\on-headers\index.js:55:19)
>     at ServerResponse._implicitHeader (_http_server.js:199:8)
>     at write_ (_http_outgoing.js:585:9)
>     at ServerResponse.write (_http_outgoing.js:567:10)
>     at writetop (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\express-session\index.js:290:26)
>     at ServerResponse.end (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\express-session\index.js:351:16)
>     at ServerResponse.redirect (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\express\lib\response.js:947:10)
>     at putOrderToDBAndRedirect (C:\Users\Petr\WebstormProjects\BakalarskaPrace\routes\placeorder.js:50:17)
> _http_server.js:208
>     throw new ERR_HTTP_INVALID_STATUS_CODE(originalStatusCode);
>     ^
> 
> RangeError [ERR_HTTP_INVALID_STATUS_CODE]: Invalid status code:
> [object Object]
>     at ServerResponse.writeHead (_http_server.js:208:11)
>     at ServerResponse.writeHead (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\on-headers\index.js:55:19)
>     at ServerResponse.writeHead (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\on-headers\index.js:55:19)
>     at ServerResponse._implicitHeader (_http_server.js:199:8)
>     at write_ (_http_outgoing.js:585:9)
>     at ServerResponse.end (_http_outgoing.js:709:5)
>     at writeend (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\express-session\index.js:261:22)
>     at Immediate.ontouch (C:\Users\Petr\WebstormProjects\BakalarskaPrace\node_modules\express-session\index.js:348:11)
>     at processImmediate (timers.js:632:19)
> 
> Process finished with exit code 1


const putOrderToDBAndRedirect = async(res,userId,serviceObj,
                                      ordStart,ordEnd) =>{
    try{
        const result = await pool.query('SELECT id ' +
                                            'FROM orders ' +
                                            'WHERE ($1,$2) OVERLAPS (ord_start,ord_end)',
                                            [ordStart,ordEnd]);
        if(isOverlaping(result)){
            console.log('redirect to page with orders');
            res.redirect('/objednat')
        }else{
            await pool.query('INSERT INTO orders (ord_entered,ord_start,user_id,service_id,ord_end)' +
                                ' VALUES($1,$2,$3,$4,$5)',
                                [new Date(),ordStart,userId,serviceObj.id,ordEnd]);
            const resultArr = await pool.query('SELECT firstname,lastname,phonenumber ' +
                                            'FROM users ' +
                                            'WHERE ' +
                                            'id = $1',[userId]);

            console.log(resultArr.rows[0]);
            const obj = constructOrderObj(serviceObj,ordStart,resultArr.rows[0]);
            res.redirect('/objednano',{orderObj:obj});
        }
    }catch(err){
        console.error(err);
    }

};

Answer 1

您正在调用 res.redirect('/objednano',{orderObj:obj}); 但这与 the function signature for res.redirect() 不匹配它将可选状态作为第一个参数，将路径作为第二个参数(如果只有一个参数，则将路径作为第一个参数，在这种情况下，状态将默认为 302)。

老实说，我不清楚你想在那里做什么。但那条线就是问题所在。它将第一个参数视为状态代码，并且 '/objednano' 显然是无效的 HTTP 状态。因此错误消息提示 HTTP 状态无效。