{"id":71,"date":"2021-08-18T10:27:00","date_gmt":"2021-08-18T02:27:00","guid":{"rendered":"http:\/\/119.23.244.75\/?p=71"},"modified":"2021-09-27T13:44:30","modified_gmt":"2021-09-27T05:44:30","slug":"nodeexpress%e7%ac%ac%e4%b8%80%e9%a1%b5","status":"publish","type":"post","link":"https:\/\/www.keioi.cn\/archives\/71","title":{"rendered":"node,express\u7b2c\u4e00\u9875"},"content":{"rendered":"\n

\u521d\u59cb\u5316\u9879\u76ee npm init -y <\/p>\n\n\n\n

\u5b89\u88c5express  npm install express –save <\/p>\n\n\n\n

\u65b0\u5efaindex.js,index.html.<\/p>\n\n\n\n

index.html.<\/p>\n\n\n\n

<!DOCTYPE html>\n<html lang=\"en\">\n\n<head>\n    <meta charset=\"UTF-8\">\n    <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n    <meta name=\"viewport\" content=\"width=<device-width>, initial-scale=1.0\">\n    <title>Document<\/title>\n<\/head>\n\n<body>\n    <div style=\"margin: 10px;\"><input type=\"button\" id=\"ubtn\" value=\"\u786e\u5b9a\"><\/div>\n    <div id=\"see\" style=\"margin: 10px;\"><\/div>\n<\/body>\n<script>\n    let btn = document.getElementById(\"ubtn\");\n    let see = document.getElementById(\"see\");\n    \n    btn.onclick = function () {\n\n        let xhr = new XMLHttpRequest();\n        xhr.onreadystatechange = function () {\n            if (xhr.readyState == 4) {\n                if (xhr.status == 200) { \/\/\u54cd\u5e94\u5b8c\u6210\u4e14\u6210\u529f\n                    see.innerHTML = xhr.responseText\n\n                } else {  \/\/\u54cd\u5e94\u5b8c\u6210\u4f46\u4e0d\u6210\u529f\n                    alert('\u54cd\u5e94\u5b8c\u6210\u4f46\u5931\u8d25\uff01' + xhr.status);\n                    see.innerHTML = \"\";\n                }\n            }\n        }\n        myurl = 'http:\/\/localhost:8000\/123' \n        xhr.open('GET', myurl, true);\n        xhr.send();\n    }\n\n\n\n<\/script>\n\n<\/html><\/code><\/pre>\n\n\n\n
index.js<\/p>\n\n\n\n
const express = require('express');\nconst app = express();\nconst cors = require('cors');\/\/\u8de8\u57df\napp.use(cors());\n\napp.listen(8000, () => {\n    console.log('\u670d\u52a1\u542f\u52a8');\n})\n\napp.get('\/123', (req, res) => {\n    res.send(\"test\")\n})<\/code><\/pre>\n\n\n\n
\u8fd0\u884cnode index.js<\/p>\n\n\n\n
\"\"\/<\/figure>\n","protected":false},"excerpt":{"rendered":"
\u521d\u59cb\u5316\u9879\u76ee npm i...<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,4],"tags":[13],"class_list":["post-71","post","type-post","status-publish","format-standard","hentry","category-js","category-4","tag-js"],"_links":{"self":[{"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/posts\/71","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/comments?post=71"}],"version-history":[{"count":1,"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/posts\/71\/revisions"}],"predecessor-version":[{"id":72,"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/posts\/71\/revisions\/72"}],"wp:attachment":[{"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/media?parent=71"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/categories?post=71"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.keioi.cn\/api\/wp\/v2\/tags?post=71"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}