节点expression：在一些路由上404，但不是其他

所以我有一个问题，我的一些express.js（v3.2.0）路由返回一个404状态码，而其他的则不是。 我不知道为什么有些路线工作正常，而其他路线没有解决。 任何帮助将不胜感激。

server.js：

//npm packages var express = require('express') , app = express() , server = require('http').createServer(app) ; if(process.env.NODE_ENV == 'production') require('newrelic'); //local resources init = require('./lib/init'); ctrl = require('./lib/ctrl') //external async resources (global variables) init.setup(function(){ //configure express _util.configExpress(__dirname, app, express); // create a new AI classifier // // Arguments // --------- // modelType - (path param) ID of the classifier // modelParams - (body) JSON containing to configure the model // // Returns // ------- // 200 - ID of created classifier // 400 - Error during creation app.get('/clf/create/:modelType', _util.auth(express.basicAuth), function(req, res) { var modelParams = req.body ? req.body : {}; var modelType = req.params.modelType; ctrl.clfCreate(modelType, modelParams, function(err, result) { if(err) { // at this point, assume bad request res.status(400); res.json({"err": err.message}); } else { // if success, return classifier ID res.json({"id": result}); } res.end(); }); }); // [Unrelated endpoints...] //handle resource update data from io server app.all('/:clientId/:projectId/train', _util.auth(express.basicAuth), function (req, res){ ctrl.trainer(req.params.clientId, req.params.projectId, function(err, result){/*res.json(result);*/}); res.end(); }); // [Unrelated endpoints...] //listen on app port var port; var expr = _env.name == 'prod' ? port = process.env.PORT : port = _env.app.ai.port; server.listen(port); console.log('Listening to: '+port); }); 

_util.configExpress：

 self.configExpress = function(dirname, app, express){ app.configure(function() { //setup jade app.set('views', dirname+'/views') app.set('view engine', 'jade') //setup friendly console logging app.use(express.logger('dev')) //use body parser for handling http post app.use(express.bodyParser()); //define static file server app.use(express.static(dirname+'/'+_env.assets)); }); } 

但是当我testing端点时：

 $ curl -vv --user bst:bst localhost:3002/clf/create/bnn * Trying ::1... * Connected to localhost (::1) port 3002 (#0) * Server auth using Basic with user 'bst' > GET /clf/create/bnn HTTP/1.1 > Host: localhost:3002 > Authorization: Basic YnN0OmJzdA== > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 404 Not Found < X-Powered-By: Express < Content-Type: text/plain < Content-Length: 9 < Date: Thu, 02 Jul 2015 18:54:32 GMT < Connection: keep-alive < * Connection #0 to host localhost left intact Not Found% $ -vv --user bst:bst localhost:3002/bst/drone/train * Trying ::1... * Connected to localhost (::1) port 3002 (#0) * Server auth using Basic with user 'bst' > GET /bst/drone/train HTTP/1.1 > Host: localhost:3002 > Authorization: Basic YnN0OmJzdA== > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < X-Powered-By: Express < Date: Thu, 02 Jul 2015 18:54:45 GMT < Connection: keep-alive < Transfer-Encoding: chunked < * Connection #0 to host localhost left intact ➜ reporting git:(feature/ai-train-api) ✗ 

Answer 1

您正在使用快速版本3，您正在尝试用户路线像版本4的参数。

req.params是一个数组，不是版本3中的一个对象

试试看这里 。

代码示例

试试这个我想象，因为var modelType会被定义为你的ctrl，clfCreate（）函数不能发送响应。 在另一个端点中， res.end()超出了ctrl函数的范围

 app.get('/clf/create/:modelType', _util.auth(express.basicAuth), function(req, res) { var modelParams = req.body ? req.body : {}; var modelType = req.params[0]; ctrl.clfCreate(modelType, modelParams, function(err, result) { if(err) { // at this point, assume bad request res.status(400); res.json({"err": err.message}); } else { // if success, return classifier ID res.json({"id": result}); } res.end(); }); });