將參數傳遞給node.js中的路由

Question

我對Web開發非常陌生。我曾經使用WPF和C＃進行桌面開發。現在我正在學習Node.js的

我有一個名爲Party.js模型中，我定義了兩個出口如下：

module.exports.getAllParties = function(callback){ 
    Party.find().lean().exec(function(err, parties){ 
    if (err) return callback(err, null); 
    callback(null, parties); 
    }); 
}; 

module.exports.getPartyByPartyCode = function(partyCode, callback){ 
    Party.find({partyCode: partyCode}).exec(function(err, party){ 
    if(err) return callback(err, null); 
    callback(null, party); 
    }); 
}; 

現在，我也有一個名爲Party.js路線，我有二送方法如下：

router.get('/', function(req, res, next){ 

    //retrieve all parties from Party model 
    Party.getAllParties(function(err, parties) { 
     if (err) { 
      return console.error(err); 
     } else { 
      //respond to both HTML and JSON. JSON responses require 'Accept: application/json;' in the Request Header 
      res.format({ 

       //response in dust or jade files 
       html: function(){ 
        res.render('Party', { 
         title: 'Party', 
         "parties" : parties 
        }); 
       }, 

       //JSON response will show all parties in JSON format 
       json: function(){ 
        res.json(parties); 
       } 
      }); 
     } 
    }); 
}); 

router.get('/:partyCode', function(req, res, next){ 

    Party.getPartyByPartyCode(function(err, party) { 
     if (err) { 
      return console.error(err); 
     } else { 
      //respond to both HTML and JSON. JSON responses require 'Accept: application/json;' in the Request Header 
      res.format({ 

       //response in dust or jade files 
       html: function(){ 
        res.render('Party', { 
         title: 'Party', 
         "party" : party 
        }); 
       }, 

       //JSON response will show all parties in JSON format 
       json: function(){ 
        res.json(party); 
       } 
      }); 
     } 
    }); 
}); 

現在，當我用ajax：

var inputElem = $('#partyForm :input[name="partyCode"]'), 
    inputVal = inputElem.val(), 
    data = { partyCode : inputVal }, 
    eReport = ''; //error report 

$.ajax(
{ 
    type: "GET", 
    url: "/Party", 
    dataType: "json", 
    data: data, 
    beforeSend: function(jqXHR, settings) 
    { 
     console.log(settings.url); 
    }, 
    success: function(party) 
    { 
     if (party) 
     { 
      console.log(party); 
      return 'Party ' + party.partyName + ' has already taken party code: ' + party.partyCode + '. Please choose a different PartyCode.'; 
     } 
     else 
     { 
      console.log("party does not exist."); 
      return true; 
     } 
    }, 
    error: function(xhr, textStatus, errorThrown) 
    { 
     alert('ajax loading error... ... '+url + query); 
     return false; 
    } 
}); 

我的問題是：爲什麼高於ajax電話會讓我回到所有的派對？我只是想獲得一個政黨，其patyCode在傳遞給Ajax調用的數據....

Answer 1

有兩個路由器響應代碼和Ajax功能的一些錯誤：

首先糾正你的路由器的代碼：

您沒有在您的模型中使用提供的派對代碼。

router.get('/:partyCode', function (req, res, next) { 

var partyCode = req.param('partyCode'); 

Party.getPartyByPartyCode(partyCode, function (err, party) { 
    if (err) { 
     return console.error(err); 
    } else { 
     //respond to both HTML and JSON. JSON responses require 'Accept: application/json;' in the Request Header 
     res.format({ 
      //response in dust or jade files 
      html: function() { 
       res.render('Party', { 
        title: 'Party', 
        "party": party 
       }); 
      }, 
      //JSON response will show all parties in JSON format 
      json: function() { 
       res.json(party); 
      } 
     }); 
    } 
}); 

}）;

正確的Ajax函數調用

網址參數爲您的路由器表明這樣/:partyCode您必須提供第三方代碼。請嘗試以下操作：

var inputElem = $('#partyForm :input[name="partyCode"]'), 
    inputVal = inputElem.val(), 
    eReport = ''; //error report 

$.ajax({ 
    type: "GET", 
    url: "/"+inputVal, 
    dataType: "json", 
    data: data, 
    beforeSend: function (jqXHR, settings) { 
     console.log(settings.url); 
    }, 
    success: function (party) { 
     if (party) 
     { 
      console.log(party); 
      return 'Party ' + party.partyName + ' has already taken party code: ' + party.partyCode + '. Please choose a different PartyCode.'; 
     } 
     else 
     { 
      console.log("party does not exist."); 
      return true; 
     } 
    }, 
    error: function (xhr, textStatus, errorThrown) { 
     alert('ajax loading error... ... ' + url + query); 
     return false; 
    } 
});