Nodejs中搭建一个静态Web服务器,通过读取文件获取响应类型

左手的ㄟ右手 2023-10-05 12:15 15阅读 0赞

## 场景 ##

Web服务器一般指网站服务器，是指驻留于因特网上某种类型计算机的程序，可以向浏览器等Web客户端提供文档，也可以放置网站文件让全世界浏览，还可以放置数据文件，让全世界下载。目前最主流的Web服务器有Apache、Nginx、Its等。

Nodejs中的fs模块的使用：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/107774734][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_107774734]

Node中的Http模块和Url模块的使用：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/107677618][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_107677618]

怎样使用Node搭建一个静态资源服务器，使其根据请求不同的文件类型设置不同的响应头。

比如：

".png":"image/png" ,
    
    ".png":"image/png" ,
    
    ".zip":"application/zip" ,
    
    ".htm":"text/html" ,
    
    ".html":"text/html" ,
    
    ".css":"text/css" ,
    
    ".js":"application/x-javascript" ,

注：

博客：  
[https://blog.csdn.net/badao\_liumang\_qizhi][https_blog.csdn.net_badao_liumang_qizhi]  
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## 实现 ##

要实现搭建一个静态资源服务器，首先要拦截每个请求，根据请求的url的文件后缀名格式进行对应的响应头设置。

比如请求html文件，就要设置响应头为

{'Content-Type': 'text/html';charset="utf-8"'}

要是请求js文件，响应头为

{'Content-Type': 'text/javascript';charset="utf-8"'}

如果是请求压缩包zip文件，则响应头为

{'Content-Type': 'application/zip';charset="utf-8"'}

所以将这些不同后缀名格式的文件的请求映射为不同的响应头就能搭建一个静态资源服务器。

因为后缀名与对应的响应头很多，不能在代码中使用if-else if去进行判断。

所以将大部分的文件后缀名与响应头的映射关系存储进JSON文件，然后使用fs模块读取文件。

然后根据请求的后缀名设置不同的响应头。

打开VSCode新建项目，在项目下新建app.js

注：

通过http.createServer创建服务器，然后通过url模块的url.parse(req.url).pathname获取请求路径。

然后通过三目表达式

pathname=pathname=='/'?'/index.html':pathname;

设置根路径为index.html

然后通过path模块的

let extname=path.extname(pathname);

获取文件后缀名

通过fs模块的 fs.readFile读取json文件的映射关系

再根据扩展名获取响应类型并将对应的响应写入。

其中根据扩展名获取响应类型的方法是引入的公共方法，通过

const common=require('./module/common.js');

引入

所以在项目下新建module目录，在此目录下新建common.js

const fs=require('fs');
    
    
    //同步读取文件的方法
    exports.getFileMime = function (extname) {
    
        var data=fs.readFileSync('./data/mime.json'); //同步方法
        //根据左边的扩展名获取右边的响应头
        let mimeObj=JSON.parse(data.toString());  
        return mimeObj[extname];   
    
    }

上面的方法读取了json文件，所以在项目下新建data目录，在此目录下新建mine.json

{ ".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 ":"application/octet-stream" ,
      ".bld":"application/bld" ,
      ".bld2":"application/bld2" ,
      ".bmp":"image/bmp" ,
      ".bpk":"application/octet-stream" ,
      ".bz2":"application/x-bzip2" ,
      ".c":"text/plain" ,
      ".cal":"image/x-cals" ,
      ".cat":"application/vnd.ms-pkiseccat" ,
      ".ccn":"application/x-cnc" ,
      ".cco":"application/x-cocoa" ,
      ".cdf":"application/x-cdf" ,
      ".cer":"application/x-x509-ca-cert" ,
      ".cgi":"magnus-internal/cgi" ,
      ".chat":"application/x-chat" ,
      ".class":"application/octet-stream" ,
      ".clp":"application/x-msclip" ,
      ".cmx":"image/x-cmx" ,
      ".co":"application/x-cult3d-object" ,
      ".cod":"image/cis-cod" ,
      ".conf":"text/plain" ,
      ".cpio":"application/x-cpio" ,
      ".cpp":"text/plain" ,
      ".cpt":"application/mac-compactpro" ,
      ".crd":"application/x-mscardfile" ,
      ".crl":"application/pkix-crl" ,
      ".crt":"application/x-x509-ca-cert" ,
      ".csh":"application/x-csh" ,
      ".csm":"chemical/x-csml" ,
      ".csml":"chemical/x-csml" ,
      ".css":"text/css" ,
      ".cur":"application/octet-stream" ,
      ".dcm":"x-lml/x-evm" ,
      ".dcr":"application/x-director" ,
      ".dcx":"image/x-dcx" ,
      ".der":"application/x-x509-ca-cert" ,
      ".dhtml":"text/html" ,
      ".dir":"application/x-director" ,
      ".dll":"application/x-msdownload" ,
      ".dmg":"application/octet-stream" ,
      ".dms":"application/octet-stream" ,
      ".doc":"application/msword" ,
      ".docx":"application/vnd.openxmlformats-officedocument.wordprocessingml.document" ,
      ".dot":"application/msword" ,
      ".dvi":"application/x-dvi" ,
      ".dwf":"drawing/x-dwf" ,
      ".dwg":"application/x-autocad" ,
      ".dxf":"application/x-autocad" ,
      ".dxr":"application/x-director" ,
      ".ebk":"application/x-expandedbook" ,
      ".emb":"chemical/x-embl-dl-nucleotide" ,
      ".embl":"chemical/x-embl-dl-nucleotide" ,
      ".eps":"application/postscript" ,
      ".epub":"application/epub+zip" ,
      ".eri":"image/x-eri" ,
      ".es":"audio/echospeech" ,
      ".esl":"audio/echospeech" ,
      ".etc":"application/x-earthtime" ,
      ".etx":"text/x-setext" ,
      ".evm":"x-lml/x-evm" ,
      ".evy":"application/envoy" ,
      ".exe":"application/octet-stream" ,
      ".fh4":"image/x-freehand" ,
      ".fh5":"image/x-freehand" ,
      ".fhc":"image/x-freehand" ,
      ".fif":"application/fractals" ,
      ".flr":"x-world/x-vrml" ,
      ".flv":"flv-application/octet-stream" ,
      ".fm":"application/x-maker" ,
      ".fpx":"image/x-fpx" ,
      ".fvi":"video/isivideo" ,
      ".gau":"chemical/x-gaussian-input" ,
      ".gca":"application/x-gca-compressed" ,
      ".gdb":"x-lml/x-gdb" ,
      ".gif":"image/gif" ,
      ".gps":"application/x-gps" ,
      ".gtar":"application/x-gtar" ,
      ".gz":"application/x-gzip" ,
      ".h":"text/plain" ,
      ".hdf":"application/x-hdf" ,
      ".hdm":"text/x-hdml" ,
      ".hdml":"text/x-hdml" ,
      ".hlp":"application/winhlp" ,
      ".hqx":"application/mac-binhex40" ,
      ".hta":"application/hta" ,
      ".htc":"text/x-component" ,
      ".htm":"text/html" ,
      ".html":"text/html" ,
      ".hts":"text/html" ,
      ".htt":"text/webviewhtml" ,
      ".ice":"x-conference/x-cooltalk" ,
      ".ico":"image/x-icon" ,
      ".ief":"image/ief" ,
      ".ifm":"image/gif" ,
      ".ifs":"image/ifs" ,
      ".iii":"application/x-iphone" ,
      ".imy":"audio/melody" ,
      ".ins":"application/x-internet-signup" ,
      ".ips":"application/x-ipscript" ,
      ".ipx":"application/x-ipix" ,
      ".isp":"application/x-internet-signup" ,
      ".it":"audio/x-mod" ,
      ".itz":"audio/x-mod" ,
      ".ivr":"i-world/i-vrml" ,
      ".j2k":"image/j2k" ,
      ".jad":"text/vnd.sun.j2me.app-descriptor" ,
      ".jam":"application/x-jam" ,
      ".jar":"application/java-archive" ,
      ".java":"text/plain" ,
      ".jfif":"image/pipeg" ,
      ".jnlp":"application/x-java-jnlp-file" ,
      ".jpe":"image/jpeg" ,
      ".jpeg":"image/jpeg" ,
      ".jpg":"image/jpeg" ,
      ".jpz":"image/jpeg" ,
      ".js":"application/x-javascript" ,
      ".jwc":"application/jwc" ,
      ".kjx":"application/x-kjx" ,
      ".lak":"x-lml/x-lak" ,
      ".latex":"application/x-latex" ,
      ".lcc":"application/fastman" ,
      ".lcl":"application/x-digitalloca" ,
      ".lcr":"application/x-digitalloca" ,
      ".lgh":"application/lgh" ,
      ".lha":"application/octet-stream" ,
      ".lml":"x-lml/x-lml" ,
      ".lmlpack":"x-lml/x-lmlpack" ,
      ".log":"text/plain" ,
      ".lsf":"video/x-la-asf" ,
      ".lsx":"video/x-la-asf" ,
      ".lzh":"application/octet-stream" ,
      ".m13":"application/x-msmediaview" ,
      ".m14":"application/x-msmediaview" ,
      ".m15":"audio/x-mod" ,
      ".m3u":"audio/x-mpegurl" ,
      ".m3url":"audio/x-mpegurl" ,
      ".m4a":"audio/mp4a-latm" ,
      ".m4b":"audio/mp4a-latm" ,
      ".m4p":"audio/mp4a-latm" ,
      ".m4u":"video/vnd.mpegurl" ,
      ".m4v":"video/x-m4v" ,
      ".ma1":"audio/ma1" ,
      ".ma2":"audio/ma2" ,
      ".ma3":"audio/ma3" ,
      ".ma5":"audio/ma5" ,
      ".man":"application/x-troff-man" ,
      ".map":"magnus-internal/imagemap" ,
      ".mbd":"application/mbedlet" ,
      ".mct":"application/x-mascot" ,
      ".mdb":"application/x-msaccess" ,
      ".mdz":"audio/x-mod" ,
      ".me":"application/x-troff-me" ,
      ".mel":"text/x-vmel" ,
      ".mht":"message/rfc822" ,
      ".mhtml":"message/rfc822" ,
      ".mi":"application/x-mif" ,
      ".mid":"audio/mid" ,
      ".midi":"audio/midi" ,
      ".mif":"application/x-mif" ,
      ".mil":"image/x-cals" ,
      ".mio":"audio/x-mio" ,
      ".mmf":"application/x-skt-lbs" ,
      ".mng":"video/x-mng" ,
      ".mny":"application/x-msmoney" ,
      ".moc":"application/x-mocha" ,
      ".mocha":"application/x-mocha" ,
      ".mod":"audio/x-mod" ,
      ".mof":"application/x-yumekara" ,
      ".mol":"chemical/x-mdl-molfile" ,
      ".mop":"chemical/x-mopac-input" ,
      ".mov":"video/quicktime" ,
      ".movie":"video/x-sgi-movie" ,
      ".mp2":"video/mpeg" ,
      ".mp3":"audio/mpeg" ,
      ".mp4":"video/mp4" ,
      ".mpa":"video/mpeg" ,
      ".mpc":"application/vnd.mpohun.certificate" ,
      ".mpe":"video/mpeg" ,
      ".mpeg":"video/mpeg" ,
      ".mpg":"video/mpeg" ,
      ".mpg4":"video/mp4" ,
      ".mpga":"audio/mpeg" ,
      ".mpn":"application/vnd.mophun.application" ,
      ".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"
    }

为了测试静态资源服务器的效果，在项目下新建static目录，将前端项目打包成的静态资源文件放在此目录下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

然后打开终端运行项目

node app.js

打开浏览器输入

localhost:3000

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

此时会直接访问index.html

如果在浏览器中直接输入

localhost:3000/index.html

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 2][]

效果是一样的

如果再输入

[http://localhost:3000/js/footer.js][http_localhost_3000_js_footer.js]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 3][]

如果访问static目录下的static.zip

[http://localhost:3000/static.zip][http_localhost_3000_static.zip]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 4][]

则会直接响应zip下载。

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_107774734]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/107774734
[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_107677618]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/107677618
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20201022215638623.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20201022215702162.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20201022215651609.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[http_localhost_3000_js_footer.js]: http://localhost:3000/js/footer.js
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20201022215709931.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[http_localhost_3000_static.zip]: http://localhost:3000/static.zip
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20201022215716440.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70