Javascript 韩元'；t在“中插入数据”；“用户”；使用nodeJS收集到mongoDB

我在用nodeJS向mongoDB插入数据时遇到了麻烦

这是my server.js文件的一部分：

app.post('/users', function(req, res, next){

db.collection('users', function(err, usersCollection){

    usersCollection.insert(req.body, {w : 1} , function(err){
        return res.send();
    });

    });
});

这是我的index.html文件中的控制器：

app.controller('SLController', function ($scope, $http){
    $scope.submitSignup = function(){
        var newUser = {
            username: $scope.username,
            email: $scope.email,
            password: $scope.password

        };


    $http.post('/users', newUser).then(function(){
            alert('Success');
        });

    }

    /*$scope.signin = function (){
        $http.put('/users/signin', {username: $scope.username, password: $scope.password})
            .then(function(){
                alert("Successfully signed in.");
            }, function(err){
                alert("Bad login credentials.");
            })
        }*/

});

<h3 class="form-titles center-block">Sign Up</h3>

<input type="text" class="form-control form-subtitles" placeholder="Usuario" ng-model="username">

<input type="text" class="form-control form-subtitles" placeholder="E-mail" ng-model="email">

<input type="password" class="form-control form-subtitles" placeholder="Password" ng-model="password">

<input ng-click="submitSignup()" type="submit" class="form-control form-subtitles btn btn-info" value="Signup">

这是我试图从sl.html文件中插入的表单部分：

app.controller('SLController', function ($scope, $http){
    $scope.submitSignup = function(){
        var newUser = {
            username: $scope.username,
            email: $scope.email,
            password: $scope.password

        };


    $http.post('/users', newUser).then(function(){
            alert('Success');
        });

    }

    /*$scope.signin = function (){
        $http.put('/users/signin', {username: $scope.username, password: $scope.password})
            .then(function(){
                alert("Successfully signed in.");
            }, function(err){
                alert("Bad login credentials.");
            })
        }*/

});

<h3 class="form-titles center-block">Sign Up</h3>

<input type="text" class="form-control form-subtitles" placeholder="Usuario" ng-model="username">

<input type="text" class="form-control form-subtitles" placeholder="E-mail" ng-model="email">

<input type="password" class="form-control form-subtitles" placeholder="Password" ng-model="password">

<input ng-click="submitSignup()" type="submit" class="form-control form-subtitles btn btn-info" value="Signup">

---

而不是

。插入

使用

。保存

这是一个简单的方法，您可以轻松地在数据库中创建记录。只需要两个参数：email和name

router.all('/create', function (req, res) {
        var database = req.Collection;
        var name = req.body.name;// or you can do directly as 'shekhar'
        var email = req.body.email;// or you can do directly as 'a@gmail.com'
        var record = new database({
            name: name,
            email: email
        });
        if (record.length > 0) {
            record.save(function (err, result) {
                if (err) {
                    res.json({status: 0, message: err})
                } else {
                    res.json({status: 1, name: name, email: email, message: " success"});
                }
            })
        } else {
            res.json({status: 0, msg: "Invalid Fields"});
        }
    });

---

我用来修复它的局部解决方案：

app.post('/users', function(req, res, next){

 db.collection('users', function(err, usersCollection){

    usersCollection***.save***(req.body, {w : 1} , function(err){
        return res.send();
    });
  });
});

 app.post('/users', function(req, res, next){

  db.collection('users', function(err, usersCollection){

     usersCollection***.save***(req.body, {w : 1} , function(err){
         return res.send();
     });
  });
 });

---

而不是

*。插入*

使用

*。保存*

我不太理解你的方法。我刚开始学习，我正在学习一个教程。你介意帮我写代码吗？谢谢。首先，让你的api工作起来，我认为没有必要使用angular，你可以简单地用ajax发送数据。如果你是nodejs的初学者，那么你可以参考我的git存储库，我已经试着添加了你，但是我不能。有任何“+”或“-”符号吗？