Question

我现在尝试创建服务器应该可以注册用户。但是，尝试使用/ reg注册时服务器没有反应。当我创建一个新的.get时它确实会响应，所以服务器本身正在工作。

我还不清楚如何正确格式化网址。

app.post('/reg/:uname/:teamid', function(req, res){
  var username = req.params.uname;
  var teamidpar = req.params.teamid;

  UserSchema.pre('save', function (next) {
    this1 = this;

    UserModel.find({uname : this1.username}, function(err, docs) {
        if (!docs.length) {
            //Username already exists
        } else {
            var loginid = randomstring.generate();
            var newUser = User({
                uname : username,
                teamid : teamidpar,
                totalscore : 0,
                lastopponement : null,
                gamescore : 0,
            });

            User.save(function (err, User, next) {
                if (err) {return console.error(err);}
                else
                {console.log(timestamp+':'+'User created:'+newUser.uname+':'+newUser.login);}
                res.json({login : loginid});
            });   
         }
      });
   });
});

Answer 1

我不知道为什么我之前没有看到这个，但你在开头使用UserSchema.pre，但这只是一个定义，不会立即执行。只有当您在文档上实际执行save时才会触发此功能。

在正确的编辑版本下面。

app.post('/reg/:uname/:teamid', function(req, res) {
  var username = req.params.uname;
  var teamidpar = req.params.teamid;

  // If you are just checking if something exist, then try count 
  // as that has minimal impact on the server
  UserModel.count({uname : username}, function(err, count) {
    if (count > 0) {
      // Username already exists, but always output something as we
      // don't want the client to wait forever
      return res.send(500);
    }

    var loginid = randomstring.generate();

    // You'll need a new instance of UserModel to define a new document
    var newUser = new UserModel({
      uname : username,
      teamid : teamidpar,
      totalscore : 0,
      lastopponement : null,
      gamescore : 0,
    });

    // Save the document by calling the save method on the document
    // itself
    newUser.save(function (err) {
      if (err) {
        console.error(err);

        // You'll want to output some stuff, otherwise the client keeps on waiting
        return res.send(500);
      }

      console.log(timestamp + ': User created:' + username + ':' + loginid);
      res.json({login : loginid});
    });   
  });
});

服务器没有响应带参数的url

1 个答案: