Express的版本4.X
Get
query參數(shù)的獲取
url假設(shè):http://localhost:3000/users/zqzjs?name=zhaoqize&word=cool&job[st]=web
路由的定義:
router.get('/:name', function(req, res, next) {})1.獲取?name=zhaoqize這樣的參數(shù)
req.query.name
2.獲取&job[st]=web這樣的參數(shù)
req.query.job.st
3.獲取?name=zhaoqize參數(shù)的另外一種寫法(4.x版本中該方法已被廢棄)
req.param('name')
4.獲取所有參數(shù)
JSON.stringify(req.query)
具體代碼:
//http://localhost:3000/users/zqzjs?name=zhaoqize&word=cool&job[st]=web//http://localhost:3000/users/zqzjsrouter.get('/:name', function(req, res, next) { //4.版本中已被廢棄，不建議使用 req.param('name') console.log(JSON.stringify(req.query) || '') //獲取get請求參數(shù) var _html = "Params"+ "<p><strong>req.params:</strong>"+(JSON.stringify(req.params) || '')+"</p>" + "<p><strong>req.params.name:</strong>"+(req.params.name || '')+"</p>" + "Query:" + "<p><strong>req.query:</strong>"+(JSON.stringify(req.query) || '')+"</p>" + "<p><strong>req.query.name:</strong>"+(req.query.name || '')+"</p>" + "<p><strong>req.query.word:</strong>"+(req.query.word || '')+"</p>"+ "<p><strong>req.query.job.st:</strong>"+(req.query.job.st || '')+"</p>" + "<p><strong>req.param('name'):</strong>"+(req.param('name') || '')+"</p>" ; res.send(_html);});結(jié)果:
[Get]Paramsreq.params:{"name":"zqzjs"}req.params.name:zqzjsQuery:req.query:{"name":"zhaoqize","word":"cool","job":{"st":"web"}}req.query.name:zhaoqizereq.query.word:coolreq.query.job.st:webreq.param('name'):zqzjsPost
post的數(shù)據(jù)獲取
Form Data pName:zqz pWord:job
1.獲取需要的query參數(shù)
req.body.pName
具體代碼:
router.post('/postTest',function(req, res, next){ var _html = "[Post]" + "<p><strong>req.body:</strong>"+(JSON.stringify(req.body) || '')+"</p>" + "<p><strong>req.body.name:</strong>"+(req.body.pName || '')+"</p>" + "<p><strong>req.body.name:</strong>"+(req.body.pWord || '')+"</p>"; res.send(_html);})結(jié)果:
[Post]req.body:{"pName":"zqz","pWord":"job"}req.body.name:zqzreq.body.name:job其他信息
獲取請求的頭信息
使用:req.header(field)
//http://localhost:3000/users/requestInfo/getrouter.get('/requestInfo/get',function(req, res, next){ var _html = ""; _html += "[Accept] "+req.header('Accept')+"<br/>" _html += "[Accept-Encoding] "+req.header('Accept-Encoding')+"<br/>" _html += "[Accept-Language] "+req.header('Accept-Language')+"<br/>" _html += "[Cache-Control] "+req.header('Cache-Control')+"<br/>" _html += "[Connection] "+req.header('Connection')+"<br/>" _html += "[Cookie] "+req.header('Cookie')+"<br/>" _html += "[Host] "+req.header('Host')+"<br/>" _html += "[If-None-Match] "+req.header('If-None-Match')+"<br/>" _html += "[Upgrade-Insecure-Requests] "+req.header('Upgrade-Insecure-Requests')+"<br/>" _html += "[User-Agent] "+req.header('User-Agent')+"<br/>" res.send(_html);})//結(jié)果:[Accept] text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8[Accept-Encoding] gzip, deflate, sdch, br[Accept-Language] zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4,ja;q=0.2[Cache-Control] max-age=0[Connection] keep-alive[Cookie] Hm_lvt_4f16d955a2236fc6ca7287644ecc9d79=1480576847,1481166685[Host] localhost:3000[If-None-Match] W/"23b-OjTNcZfCLTvw659CYGlLrA"[Upgrade-Insecure-Requests] 1[User-Agent] Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36route
使用:req.route
//http://localhost:3000/users/router/getrouter.get('/router/get',function(req, res, next){ res.send(req.route);})//結(jié)果：{path: "/router/get",stack: [{name: "<anonymous>",keys: [ ],regexp: { },method: "get"}],methods: {get: true}}cookies
使用:req.cookies
//http://localhost:3000/users/cookies/getrouter.get('/cookies/get',function(req, res, next){ res.send(req.cookies);})//結(jié)果：{Hm_lvt_4f16d955a2236fc6ca7287644ecc9d79: "1480576847,1481166685"}hostname
使用:req.hostname
//http://localhost:3000/users/hostname/getrouter.get('/hostname/get',function(req, res, next){ res.send(req.hostname);})//結(jié)果:localhostip
使用:req.ip
//http://localhost:3000/users/ip/getrouter.get('/ip/get',function(req, res, next){ res.send(req.ip);})//結(jié)果:::1originalUrl
使用:req.originalUrl
//http://localhost:3000/users/originalUrl/getrouter.get('/originalUrl/get',function(req, res, next){ res.send(req.originalUrl);})//結(jié)果:/users/originalUrl/getprotocol
使用:req.protocol
//http://localhost:3000/users/protocol/getrouter.get('/protocol/get',function(req, res, next){ res.send(req.protocol);})//結(jié)果:httpsecure
使用:req.secure
說明:用來判斷協(xié)議是否安全,如果是https，返回的就是true
//http://localhost:3000/users/secure/getrouter.get('/secure/get',function(req, res, next){ res.send(req.secure);})//結(jié)果:falsexhr
使用:req.xhr
說明:判斷是否是異步請求
//http://localhost:3000/users/xhr/getrouter.get('/xhr/get',function(req, res, next){ res.send(req.xhr);})//結(jié)果:false以上就是本文的全部內(nèi)容，希望本文的內(nèi)容對大家的學(xué)習(xí)或者工作能帶來一定的幫助，同時(shí)也希望多多支持武林網(wǎng)!
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