在服务器和客户端之间传递数据（node.js + mongodb） [英] passing data between server and client (node.js + mongodb)

问题描述

我正在使用node.js express和mongodb，我有来自客户端的输入数据，我需要将数据传递给服务器查找其属性并发送到另一页面的客户端。

I'm working with node.js express and mongodb, I have a input data from client, I need to pass the data to server look for its property and send to the client in another page.

现在我遇到了 req.body.age 的问题，它假定从客户端输入获取数据并使用 find （）获取相应的属性。

Now I have problem with req.body.age that suppossed to get the data from client's input and use find() to get its appropriate property.

服务器端代码：

函数在另一个.js文件中路由

functions are routed in another .js file

exports.find_user = function(req, res) {
    res.render('find_user.jade');
};


exports.user = function(req, res){
    member = new memberModel();
    member.desc.age = req.body.age; //problem
    console.log(req.body.age);  //undefined 
    memberModel.find({desc: {age: '7'}}, function(err, docs){
        res.render('user.jade', { members: docs });
    console.log(docs);
});
};

memberModel.find（{desc：{age：'7'}} 只需硬盘代码7岁以上的用户（工作）

memberModel.find({desc: {age: '7'}} just hardcode picking up user with age 7 (works)

客户端代码（jade）：

数据输入页面：

find_user.jade

find_user.jade

form(action='/', method='post')
    fieldset
        lable(for="age") Find user by age: 
            input(type="text", size="30", name="age", required="required")
            input(type='button', value='Find', onclick='location.href=\'find_user/user/\'')

数据输出页面及其属性：

page for data output with its property:

user.jade

user.jade

        tr
            th Name
            th Age
    tbody
    - members.forEach(function(member){
        tr
            td= member['name']
            td= member['desc']
     - });

推荐答案

当用户单击按钮时，您没有在find_user.jade文件中提交数据。相反，客户端只被重定向到另一个页面。

You are not submitting your data in find_user.jade file when the user clicks the button. Instead, the client is only redirected to another page.

这是你的find_user.jade文件的样子：

This is how your find_user.jade file should look like:

form(action='find_user/user/', method='post')
    fieldset
        label(for="age") Find user by age: 
            input(type="text", size="30", name="age", required="required")
            input(type='submit', value='Find', name="submit")

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