[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_11":-5},"routes/user.$name.collections",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":16},"topics",[35],"user",{"_20":21,"_13":14,"_22":23,"_24":14,"_25":26,"_27":28,"_29":30,"_31":32,"_33":34},"loginname","jinyuyoulong","page",1,"limit",20,"total","id","23922","avatar_url","https://avatars2.githubusercontent.com/u/11845936?v=4","githubUsername","create_at","2016-07-29 09:55:03.208","score",30,"topic_count",0,"reply_count",6,"is_star",false,{"_20":36,"_37":38,"_39":-5,"_40":41,"_42":43,"_44":45,"_46":34,"_47":34,"_31":48,"_49":50,"_25":51,"_52":53},"1949","author_id","5529","tab","content","過去無論哪一種網站應用程式的開發語言，初學者教學中第一次會提到的起手式，八九不離十就是 GET/POST Request 的取值。但是，在 Node.js + Express 的世界中，彷彿人人是高手，天生就會使用，從不曾看到有人撰文說明。\r\n\r\n這應該算是開發 Web Service 的入門，在 Client 與 Server 的互動中，瀏覽器發出 GET/POST Request 時會傳值給 Server-side，常見應用就是網頁上以 POST method 送出的表單內容，或是網址列上的 Query Strings （ex: page?page=3&id=5）。然後，我們的網站應用程式透過解析這些參數，得到使用者上傳的資訊。\r\n\r\n取得 GET Request 的 Query Strings：\r\n\r\n GET /test?name=fred&tel=0926xxx572\r\n \r\n app.get('/test', function(req, res) {\r\n console.log(req.query.name);\r\n console.log(req.query.tel);\r\n });\r\n\r\n如果是透過表單且是用 POST method：\r\n\r\n \r\n app.post('/test', function(req, res) {\r\n console.log(req.query.id);\r\n console.log(req.body.name);\r\n console.log(req.body.tel);\r\n });\r\n\r\n當然也可以 Query Strings 和 POST method 的表單同時使用：\r\n\r\n \r\n app.post('/test', function(req, res) {\r\n console.log(req.query.id);\r\n console.log(req.body.name);\r\n console.log(req.body.tel);\r\n });\r\n\r\n順帶補充，還有另一種方法傳遞參數給 Server，就是使用路徑的方式，可以利用 Web Server 的 HTTP Routing 來解析，常見於的各種 Web Framework。這不算是傳統標準規範的做法，是屬於 HTTP Routing 的延伸應用。\r\n\r\n GET /hello/fred/0926xxx572\r\n \r\n app.get('/hello/:name/:tel', function(req, res) {\r\n console.log(req.params.name);\r\n console.log(req.params.tel);\r\n });\r\n\r\n来源：http://liuxufei.com/blog/jishu/798.html","title","使用 NodeJS + Express 從 GET/POST Request 取值","last_reply_at","2017-10-30 08:17:26.547","good","top",9,"visit_count",147646,"2012-11-14 06:01:59.626","author",{"_13":54,"_22":55},"duyinghua","http://www.gravatar.com/avatar/b82b2276c48d3c1f19bb4b2e459a255f?size=48"]