{".323":"text/h323",".3gp":"video/3gpp",".aab":"application/x-authoware-bin",".aam":"application/x-authoware-map",".aas":"application/x-authoware-seg",".acx":"application/internet-property-stream",".ai":"application/postscript",".aif":"audio/x-aiff",".aifc":"audio/x-aiff",".aiff":"audio/x-aiff",".als":"audio/X-Alpha5",".amc":"application/x-mpeg",".ani":"application/octet-stream",".apk":"application/vnd.android.package-archive",".asc":"text/plain",".asd":"application/astound",".asf":"video/x-ms-asf",".asn":"application/astound",".asp":"application/x-asap",".asr":"video/x-ms-asf",".asx":"video/x-ms-asf",".au":"audio/basic",".avb":"application/octet-stream",".avi":"video/x-msvideo",".awb":"audio/amr-wb",".axs":"application/olescript",".bas":"text/plain",".bcpio":"application/x-bcpio",".bin 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".mpp":"application/vnd.ms-project",".mps":"application/x-mapserver",".mpv2":"video/mpeg",".mrl":"text/x-mrml",".mrm":"application/x-mrm",".ms":"application/x-troff-ms",".msg":"application/vnd.ms-outlook",".mts":"application/metastream",".mtx":"application/metastream",".mtz":"application/metastream",".mvb":"application/x-msmediaview",".mzv":"application/metastream",".nar":"application/zip",".nbmp":"image/nbmp",".nc":"application/x-netcdf",".ndb":"x-lml/x-ndb",".ndwn":"application/ndwn",".nif":"application/x-nif",".nmz":"application/x-scream",".nokia-op-logo":"image/vnd.nok-oplogo-color",".npx":"application/x-netfpx",".nsnd":"audio/nsnd",".nva":"application/x-neva1",".nws":"message/rfc822",".oda":"application/oda",".ogg":"audio/ogg",".oom":"application/x-AtlasMate-Plugin",".p10":"application/pkcs10",".p12":"application/x-pkcs12",".p7b":"application/x-pkcs7-certificates",".p7c":"application/x-pkcs7-mime",".p7m":"application/x-pkcs7-mime",".p7r":"application/x-pkcs7-certreqresp",".p7s":"application/x-pkcs7-signature",".pac":"audio/x-pac",".pae":"audio/x-epac",".pan":"application/x-pan",".pbm":"image/x-portable-bitmap",".pcx":"image/x-pcx",".pda":"image/x-pda",".pdb":"chemical/x-pdb",".pdf":"application/pdf",".pfr":"application/font-tdpfr",".pfx":"application/x-pkcs12",".pgm":"image/x-portable-graymap",".pict":"image/x-pict",".pko":"application/ynd.ms-pkipko",".pm":"application/x-perl",".pma":"application/x-perfmon",".pmc":"application/x-perfmon",".pmd":"application/x-pmd",".pml":"application/x-perfmon",".pmr":"application/x-perfmon",".pmw":"application/x-perfmon",".png":"image/png",".pnm":"image/x-portable-anymap",".pnz":"image/png",".pot,":"application/vnd.ms-powerpoint",".ppm":"image/x-portable-pixmap",".pps":"application/vnd.ms-powerpoint",".ppt":"application/vnd.ms-powerpoint",".pptx":"application/vnd.openxmlformats-officedocument.presentationml.presentation",".pqf":"application/x-cprplayer",".pqi":"application/cprplayer",".prc":"application/x-prc",".prf":"application/pics-rules",".prop":"text/plain",".proxy":"application/x-ns-proxy-autoconfig",".ps":"application/postscript",".ptlk":"application/listenup",".pub":"application/x-mspublisher",".pvx":"video/x-pv-pvx",".qcp":"audio/vnd.qcelp",".qt":"video/quicktime",".qti":"image/x-quicktime",".qtif":"image/x-quicktime",".r3t":"text/vnd.rn-realtext3d",".ra":"audio/x-pn-realaudio",".ram":"audio/x-pn-realaudio",".rar":"application/octet-stream",".ras":"image/x-cmu-raster",".rc":"text/plain",".rdf":"application/rdf+xml",".rf":"image/vnd.rn-realflash",".rgb":"image/x-rgb",".rlf":"application/x-richlink",".rm":"audio/x-pn-realaudio",".rmf":"audio/x-rmf",".rmi":"audio/mid",".rmm":"audio/x-pn-realaudio",".rmvb":"audio/x-pn-realaudio",".rnx":"application/vnd.rn-realplayer",".roff":"application/x-troff",".rp":"image/vnd.rn-realpix",".rpm":"audio/x-pn-realaudio-plugin",".rt":"text/vnd.rn-realtext",".rte":"x-lml/x-gps",".rtf":"application/rtf",".rtg":"application/metastream",".rtx":"text/richtext",".rv":"video/vnd.rn-realvideo",".rwc":"application/x-rogerwilco",".s3m":"audio/x-mod",".s3z":"audio/x-mod",".sca":"application/x-supercard",".scd":"application/x-msschedule",".sct":"text/scriptlet",".sdf":"application/e-score",".sea":"application/x-stuffit",".setpay":"application/set-payment-initiation",".setreg":"application/set-registration-initiation",".sgm":"text/x-sgml",".sgml":"text/x-sgml",".sh":"application/x-sh",".shar":"application/x-shar",".shtml":"magnus-internal/parsed-html",".shw":"application/presentations",".si6":"image/si6",".si7":"image/vnd.stiwap.sis",".si9":"image/vnd.lgtwap.sis",".sis":"application/vnd.symbian.install",".sit":"application/x-stuffit",".skd":"application/x-Koan",".skm":"application/x-Koan",".skp":"application/x-Koan",".skt":"application/x-Koan",".slc":"application/x-salsa",".smd":"audio/x-smd",".smi":"application/smil",".smil":"application/smil",".smp":"application/studiom",".smz":"audio/x-smd",".snd":"audio/basic",".spc":"application/x-pkcs7-certificates",".spl":"application/futuresplash",".spr":"application/x-sprite",".sprite":"application/x-sprite",".sdp":"application/sdp",".spt":"application/x-spt",".src":"application/x-wais-source",".sst":"application/vnd.ms-pkicertstore",".stk":"application/hyperstudio",".stl":"application/vnd.ms-pkistl",".stm":"text/html",".svg":"image/svg+xml",".sv4cpio":"application/x-sv4cpio",".sv4crc":"application/x-sv4crc",".svf":"image/vnd",".svg":"image/svg+xml",".svh":"image/svh",".svr":"x-world/x-svr",".swf":"application/x-shockwave-flash",".swfl":"application/x-shockwave-flash",".t":"application/x-troff",".tad":"application/octet-stream",".talk":"text/x-speech",".tar":"application/x-tar",".taz":"application/x-tar",".tbp":"application/x-timbuktu",".tbt":"application/x-timbuktu",".tcl":"application/x-tcl",".tex":"application/x-tex",".texi":"application/x-texinfo",".texinfo":"application/x-texinfo",".tgz":"application/x-compressed",".thm":"application/vnd.eri.thm",".tif":"image/tiff",".tiff":"image/tiff",".tki":"application/x-tkined",".tkined":"application/x-tkined",".toc":"application/toc",".toy":"image/toy",".tr":"application/x-troff",".trk":"x-lml/x-gps",".trm":"application/x-msterminal",".tsi":"audio/tsplayer",".tsp":"application/dsptype",".tsv":"text/tab-separated-values",".ttf":"application/octet-stream",".ttz":"application/t-time",".txt":"text/plain",".uls":"text/iuls",".ult":"audio/x-mod",".ustar":"application/x-ustar",".uu":"application/x-uuencode",".uue":"application/x-uuencode",".vcd":"application/x-cdlink",".vcf":"text/x-vcard",".vdo":"video/vdo",".vib":"audio/vib",".viv":"video/vivo",".vivo":"video/vivo",".vmd":"application/vocaltec-media-desc",".vmf":"application/vocaltec-media-file",".vmi":"application/x-dreamcast-vms-info",".vms":"application/x-dreamcast-vms",".vox":"audio/voxware",".vqe":"audio/x-twinvq-plugin",".vqf":"audio/x-twinvq",".vql":"audio/x-twinvq",".vre":"x-world/x-vream",".vrml":"x-world/x-vrml",".vrt":"x-world/x-vrt",".vrw":"x-world/x-vream",".vts":"workbook/formulaone",".wav":"audio/x-wav",".wax":"audio/x-ms-wax",".wbmp":"image/vnd.wap.wbmp",".wcm":"application/vnd.ms-works",".wdb":"application/vnd.ms-works",".web":"application/vnd.xara",".wi":"image/wavelet",".wis":"application/x-InstallShield",".wks":"application/vnd.ms-works",".wm":"video/x-ms-wm",".wma":"audio/x-ms-wma",".wmd":"application/x-ms-wmd",".wmf":"application/x-msmetafile",".wml":"text/vnd.wap.wml",".wmlc":"application/vnd.wap.wmlc",".wmls":"text/vnd.wap.wmlscript",".wmlsc":"application/vnd.wap.wmlscriptc",".wmlscript":"text/vnd.wap.wmlscript",".wmv":"audio/x-ms-wmv",".wmx":"video/x-ms-wmx",".wmz":"application/x-ms-wmz",".wpng":"image/x-up-wpng",".wps":"application/vnd.ms-works",".wpt":"x-lml/x-gps",".wri":"application/x-mswrite",".wrl":"x-world/x-vrml",".wrz":"x-world/x-vrml",".ws":"text/vnd.wap.wmlscript",".wsc":"application/vnd.wap.wmlscriptc",".wv":"video/wavelet",".wvx":"video/x-ms-wvx",".wxl":"application/x-wxl",".x-gzip":"application/x-gzip",".xaf":"x-world/x-vrml",".xar":"application/vnd.xara",".xbm":"image/x-xbitmap",".xdm":"application/x-xdma",".xdma":"application/x-xdma",".xdw":"application/vnd.fujixerox.docuworks",".xht":"application/xhtml+xml",".xhtm":"application/xhtml+xml",".xhtml":"application/xhtml+xml",".xla":"application/vnd.ms-excel",".xlc":"application/vnd.ms-excel",".xll":"application/x-excel",".xlm":"application/vnd.ms-excel",".xls":"application/vnd.ms-excel",".xlsx":"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",".xlt":"application/vnd.ms-excel",".xlw":"application/vnd.ms-excel",".xm":"audio/x-mod",".xml":"text/plain",".xml":"application/xml",".xmz":"audio/x-mod",".xof":"x-world/x-vrml",".xpi":"application/x-xpinstall",".xpm":"image/x-xpixmap",".xsit":"text/xml",".xsl":"text/xml",".xul":"text/xul",".xwd":"image/x-xwindowdump",".xyz":"chemical/x-pdb",".yz1":"application/x-yz1",".z":"application/x-compress",".zac":"application/x-zaurus-zac",".zip":"application/zip",".json":"application/json"}

const getMime = (fs, extName) => {  // 注意，这里 fs 模块 要从对应文件中传过来let data = fs.readFileSync('./mime.json');  // 同步读取文件let Mimes = JSON.parse(data.toString());  // 将读取到的文件转为字符串，再转为json格式return Mimes[extName] || 'text/html';  // 返回对应文件格式，如果没有，则返回 text/html 格式
}module.exports = {getMime
}

const fs = require('fs');console.log('1');fs.readFile('./mime.json', (err, data) => {if (err) {console.log(404);return false;} else {console.log('2');return data;}
});console.log('3');

const fs = require('fs');let getMime = (callback) => {fs.readFile('./mime.json', (err, data) => {callback(data);  // 将 data 作为参数传递给回调函数})}getMime((result) => {console.log(result);
})

 // 这是 model 下的 getMime.js 文件const getMime = (fs,extname,callback)=>{fs.readFile('./mime.json',(err,data)=>{if(err){console.log('mime.json文件不存在');return false;}else{let Mimes = JSON.parse(data.toString());let result = Mimes[extname] || 'text/html';callback(result);}})
}module.exports = {getMime
}

const http = require('http');
const fs = require('fs');
const path = require('path');
const url = require('url');
const mimeModel = require('./model/getMime');let server = http.createServer((req, res) => {let pathName = url.parse(req.url).pathname;if (pathName == '/') {pathName = '/index.html';}let extName = path.extname(pathName);if (pathName != '/favicon.ico') {fs.readFile('static/' + pathName, (err, data) => {if (err) {fs.readFile('static/404.html', (err, data404) => {if (err) {console.log('404');} else {res.writeHead(404, {'Content-Type': 'text/html;charset=utf-8'});res.write(data404);res.end();}})} else {     let mime = mimeModel.getMime(fs,extName,(mime)=>{res.writeHead(200, {'Content-Type': "" + mime + ";charset='utf-8'"});res.write(data);res.end();})
}})}
})server.listen(3000);

const events = require('events');  // 引入 events 模块

let EventsEmitter = new events.EventEmitter();  // 实例化 EventEmitter 方法// 监听 接收
EventsEmitter.on('to_parent', (data) => {console.log('接收到了数据');console.log(data);
})// 触发 传递
setTimeout(() => {console.log('开始广播...');EventsEmitter.emit('to_parent', '发送的数据');
}, 1000)

const getMime = (fs, extName, EventEmitter) => {  // 这里需要传递过来三个参数，第一个是fs模块，第二个是文件后缀名，第三个是实例化的events方法EventEmitterfs.readFile('./mime.json', (err, data) => {if (err) {console.log(err);return false;} else {let Mimes = JSON.parse(data.toString());let result = Mimes[extName] || 'text/html'; EventEmitter.emit('to_mime', result);   // 将数据广播出去}})
}module.exports = {getMime
}

const http = require('http');
const fs = require('fs');
const path = require('path');
const url = require('url');
const events = require('events');   // 引入 events 模块
const mimeModel = require('./model/getMime');let EventEmitter = new events.EventEmitter();  // 实例化 events 模块的 EventEmitter 方法let server = http.createServer((req, res) => {let pathName = url.parse(req.url).pathname;if (pathName == '/') {pathName = '/index.html';}let extName = path.extname(pathName);if (pathName != '/favicon.ico') {fs.readFile('static/' + pathName, (err, data) => {if (err) {fs.readFile('static/404.html', (err, data404) => {if (err) {console.log('404');} else {res.writeHead(404, {'Content-Type': 'text/html;charset=utf-8'});res.write(data404);res.end();}})} else {mimeModel.getMime(fs, extName, EventEmitter);  // 执行 getMimeEventEmitter.on('to_mime', (mimes) => {        // 监听，接收传递过来的数据res.writeHead(200, {'Content-Type': "" + mimes + ";charset='utf-8'"});res.end(data);});}})}
})server.listen(3000);

mimeModel.getMime(fs, extName, EventEmitter);

EventEmitter.on('to_mime', (mimes) => {        // 监听，接收传递过来的数据

　　res.writeHead(200, {'Content-Type': "" + mimes + ";charset='utf-8'"}); 　　res.write(data); 　　　 　　res.end();

});

  mimeModel.getMime(fs, extName, EventEmitter);EventEmitter.on('to_mime', (mimes) => {res.writeHead(200, {'Content-Type': "" + mimes + ";charset='utf-8'"})});res.write(data);res.end();