无法使用mongodb和节点js在快速javascript中路由发布请求

Question

这是调用路径“/ transaction-simulator”

的ejs表单

                    <form action="/transaction-simulator" method="post" class="form-theme"> 
                        <label>Enter your own OTP</label>
                          <input type="tel" id="realOTP" placeholder="Enter Your OTP" class="input" maxlength="6">
                          <input type="button" class="btn" value="Use OTP" onclick="compute()">
                          <label>Or</label>
                          <input type="button" class="btn" onclick="generate()" value="Tap to generate an OTP">                                                                
                          <label>Enter your Secret OTP</label>
                          <input type="text" id="resOTP" placeholder="Enter Your Secret OTP" class="input">
                        <input type="submit" class="btn" value="Verify" >
                      </form>

这是route.js中的路由，其中​​包含所有其他完美工作的路由，但此路由出现404错误。任何建议都会非常有用，并坚持了2天。

  app.post("/transaction-simulator", isLoggedIn, function(req, res) {
        var query = {
            "_id": req.param.user_id
        };

        var projection = {
            position: 1,
            operation: 1,
            userip: 1,
            _id: 0
        };

        db.collection('users').findOne(query, projection, function(err, user) {
            if (err) console.log("Error: " + JSON.stringify(err));
            if (user) verifyOTP(user);
        });
        res.redirect("/profile");
    });