插曲想記錄一下，以后可以來粘貼復制用。

一、瀏覽器下載文件

setContentType() 該實體頭的作用是讓服務器告訴瀏覽器它發送的數據屬于什么文件類型。

沒有緩存

response.addHeader('Pargam', 'no-cache');response.addHeader('Cache-Control', 'no-cache');public static void setResponseHeader(HttpServletResponse response, String name) { try {name = new String(name.getBytes(), 'ISO8859-1'); } catch (UnsupportedEncodingException e) {e.printStackTrace(); } response.setContentType('application/docx'); //要保存的文件名 response.setHeader('Content-Disposition', 'attachment;filename=' + name + '.docx'); response.addHeader('Pargam', 'no-cache'); response.addHeader('Cache-Control', 'no-cache');}二、瀏覽器預覽文件只需要把下面這行注釋就好

response.setHeader('Content-Disposition', 'attachment;filename=' + name + '.docx');

setContentType() 中的參數選擇：

文件擴展名 Content-Type(Mime-Type) 文件擴展名 Content-Type(Mime-Type) .*（ 二進制流，不知道下載文件類型） application/octet-stream .tif image/tiff .001 application/x-001 .301 application/x-301 .323 text/h323 .906 application/x-906 .907 drawing/907 .a11 application/x-a11 .acp audio/x-mei-aac .ai application/postscript .aif audio/aiff .aifc audio/aiff .aiff audio/aiff .anv application/x-anv .asa text/asa .asf video/x-ms-asf .asp text/asp .asx video/x-ms-asf .au audio/basic .avi video/avi .awf application/vnd.adobe.workflow .biz text/xml .bmp application/x-bmp .bot application/x-bot .c4t application/x-c4t .c90 application/x-c90 .cal application/x-cals .cat application/vnd.ms-pki.seccat .cdf application/x-netcdf .cdr application/x-cdr .cel application/x-cel .cer application/x-x509-ca-cert .cg4 application/x-g4 .cgm application/x-cgm .cit application/x-cit .class java/* .cml text/xml .cmp application/x-cmp .cmx application/x-cmx .cot application/x-cot .crl application/pkix-crl .crt application/x-x509-ca-cert .csi application/x-csi .css text/css .cut application/x-cut .dbf application/x-dbf .dbm application/x-dbm .dbx application/x-dbx .dcd text/xml .dcx application/x-dcx .der application/x-x509-ca-cert .dgn application/x-dgn .dib application/x-dib .dll application/x-msdownload .doc application/msword .dot application/msword .drw application/x-drw .dtd text/xml .dwf Model/vnd.dwf .dwf application/x-dwf .dwg application/x-dwg .dxb application/x-dxb .dxf application/x-dxf .edn application/vnd.adobe.edn .emf application/x-emf .eml message/rfc822 .ent text/xml .epi application/x-epi .eps application/x-ps .eps application/postscript .etd application/x-ebx .exe application/x-msdownload .fax image/fax .fdf application/vnd.fdf .fif application/fractals .fo text/xml .frm application/x-frm .g4 application/x-g4 .gbr application/x-gbr . application/x- .gif image/gif .gl2 application/x-gl2 .gp4 application/x-gp4 .hgl application/x-hgl .hmr application/x-hmr .hpg application/x-hpgl .hpl application/x-hpl .hqx application/mac-binhex40 .hrf application/x-hrf .hta application/hta .htc text/x-component .htm text/html .html text/html .htt text/webviewhtml .htx text/html .icb application/x-icb .ico image/x-icon .ico application/x-ico .iff application/x-iff .ig4 application/x-g4 .igs application/x-igs .iii application/x-iphone .img application/x-img .ins application/x-internet-signup .isp application/x-internet-signup .IVF video/x-ivf .java java/* .jfif image/jpeg .jpe image/jpeg .jpe application/x-jpe .jpeg image/jpeg .jpg image/jpeg .jpg application/x-jpg .js application/x-javascript .jsp text/html .la1 audio/x-liquid-file .lar application/x-laplayer-reg .latex application/x-latex .lavs audio/x-liquid-secure .lbm application/x-lbm .lmsff audio/x-la-lms .ls application/x-javascript .ltr application/x-ltr .m1v video/x-mpeg .m2v video/x-mpeg .m3u audio/mpegurl .m4e video/mpeg4 .mac application/x-mac .man application/x-troff-man .math text/xml .mdb application/msaccess .mdb application/x-mdb .mfp application/x-shockwave-flash .mht message/rfc822 .mhtml message/rfc822 .mi application/x-mi .mid audio/mid .midi audio/mid .mil application/x-mil .mml text/xml .mnd audio/x-musicnet-download .mns audio/x-musicnet-stream .mocha application/x-javascript .movie video/x-sgi-movie .mp1 audio/mp1 .mp2 audio/mp2 .mp2v video/mpeg .mp3 audio/mp3 .mp4 video/mpeg4 .mpa video/x-mpg .mpd application/vnd.ms-project .mpe video/x-mpeg .mpeg video/mpg .mpg video/mpg .mpga audio/rn-mpeg .mpp application/vnd.ms-project .mps video/x-mpeg .mpt application/vnd.ms-project .mpv video/mpg .mpv2 video/mpeg .mpw application/vnd.ms-project .mpx application/vnd.ms-project .mtx text/xml .mxp application/x-mmxp .net image/pnetvue .nrf application/x-nrf .nws message/rfc822 .odc text/x-ms-odc .out application/x-out .p10 application/pkcs10 .p12 application/x-pkcs12 .p7b application/x-pkcs7-certificates .p7c application/pkcs7-mime .p7m application/pkcs7-mime .p7r application/x-pkcs7-certreqresp .p7s application/pkcs7-signature .pc5 application/x-pc5 .pci application/x-pci .pcl application/x-pcl .pcx application/x-pcx .pdf application/pdf .pdf application/pdf .pdx application/vnd.adobe.pdx .pfx application/x-pkcs12 .pgl application/x-pgl .pic application/x-pic .pko application/vnd.ms-pki.pko .pl application/x-perl .plg text/html .pls audio/scpls .plt application/x-plt .png image/png .png application/x-png .pot application/vnd.ms-powerpoint .ppa application/vnd.ms-powerpoint .ppm application/x-ppm .pps application/vnd.ms-powerpoint .ppt application/vnd.ms-powerpoint .ppt application/x-ppt .pr application/x-pr .prf application/pics-rules .prn application/x-prn .prt application/x-prt .ps application/x-ps .ps application/postscript .ptn application/x-ptn .pwz application/vnd.ms-powerpoint .r3t text/vnd.rn-realtext3d .ra audio/vnd.rn-realaudio .ram audio/x-pn-realaudio .ras application/x-ras .rat application/rat-file .rdf text/xml .rec application/vnd.rn-recording .red application/x-red .rgb application/x-rgb .rjs application/vnd.rn-realsystem-rjs .rjt application/vnd.rn-realsystem-rjt .rlc application/x-rlc .rle application/x-rle .rm application/vnd.rn-realmedia .rmf application/vnd.adobe.rmf .rmi audio/mid .rmj application/vnd.rn-realsystem-rmj .rmm audio/x-pn-realaudio .rmp application/vnd.rn-rn_music_package .rms application/vnd.rn-realmedia-secure .rmvb application/vnd.rn-realmedia-vbr .rmx application/vnd.rn-realsystem-rmx .rnx application/vnd.rn-realplayer .rp image/vnd.rn-realpix .rpm audio/x-pn-realaudio-plugin .rsml application/vnd.rn-rsml .rt text/vnd.rn-realtext .rtf application/msword .rtf application/x-rtf .rv video/vnd.rn-realvideo .sam application/x-sam .sat application/x-sat .sdp application/sdp .sdw application/x-sdw .sit application/x-stuffit .slb application/x-slb .sld application/x-sld .slk drawing/x-slk .smi application/smil .smil application/smil .smk application/x-smk .snd audio/basic .sol text/plain .sor text/plain .spc application/x-pkcs7-certificates .spl application/futuresplash .spp text/xml .ssm application/streamingmedia .sst application/vnd.ms-pki.certstore .stl application/vnd.ms-pki.stl .stm text/html .sty application/x-sty .svg text/xml .swf application/x-shockwave-flash .tdf application/x-tdf .tg4 application/x-tg4 .tga application/x-tga .tif image/tiff .tif application/x-tif .tiff image/tiff .tld text/xml .top drawing/x-top .torrent application/x-bittorrent .tsd text/xml .txt text/plain .uin application/x-icq .uls text/iuls .vcf text/x-vcard .vda application/x-vda .vdx application/vnd.visio .vml text/xml .vpg application/x-vpeg005 .vsd application/vnd.visio .vsd application/x-vsd .vss application/vnd.visio .vst application/vnd.visio .vst application/x-vst .vsw application/vnd.visio .vsx application/vnd.visio .vtx application/vnd.visio .vxml text/xml .wav audio/wav .wax audio/x-ms-wax .wb1 application/x-wb1 .wb2 application/x-wb2 .wb3 application/x-wb3 .wbmp image/vnd.wap.wbmp .wiz application/msword .wk3 application/x-wk3 .wk4 application/x-wk4 .wkq application/x-wkq .wks application/x-wks .wm video/x-ms-wm .wma audio/x-ms-wma .wmd application/x-ms-wmd .wmf application/x-wmf .wml text/vnd.wap.wml .wmv video/x-ms-wmv .wmx video/x-ms-wmx .wmz application/x-ms-wmz .wp6 application/x-wp6 .wpd application/x-wpd .wpg application/x-wpg .wpl application/vnd.ms-wpl .wq1 application/x-wq1 .wr1 application/x-wr1 .wri application/x-wri .wrk application/x-wrk .ws application/x-ws .ws2 application/x-ws .wsc text/scriptlet .wsdl text/xml .wvx video/x-ms-wvx .xdp application/vnd.adobe.xdp .xdr text/xml .xfd application/vnd.adobe.xfd .xfdf application/vnd.adobe.xfdf .xhtml text/html .xls application/vnd.ms-excel .xls application/x-xls .xlw application/x-xlw .xml text/xml .xpl audio/scpls .xq text/xml .xql text/xml .xquery text/xml .xsd text/xml .xsl text/xml .xslt text/xml .xwd application/x-xwd .x_b application/x-x_b .sis application/vnd.symbian.install .sisx application/vnd.symbian.install .x_t application/x-x_t .ipa application/vnd.iphone .apk application/vnd.android.package-archive .xap application/x-silverlight-app Java 后臺字符串以txt文件響應到瀏覽器進行下載

String fileName = '短信模版.txt';OutputStream os = null;try { response.reset(); response.setContentType('application/octet-stream; charset=utf-8'); response.setHeader('Content-Disposition', 'attachment; filename=' + new String(fileName.getBytes(),'ISO8859-1')); byte[] bytes = sb.toString().getBytes('GBK'); os = response.getOutputStream(); // 將字節流傳入到響應流里,響應到瀏覽器 os.write(bytes); os.close();} catch (Exception ex) { logger.error('導出失敗:', ex); throw new RuntimeException('導出失敗');}finally { try {if (null != os) { os.close();} } catch (IOException ioEx) {logger.error('導出失敗:', ioEx); }}

以上為個人經驗，希望能給大家一個參考，也希望大家多多支持好吧啦網。