- 浏览: 487274 次
- 性别:
- 来自: 长沙
文章分类
最新评论
-
Source_野驴:
...
jsp静态化和伪静态化 -
zidanzzg:
很好的知识,找到了利用异或交换数值的理论支持,谢谢分享
XOR的性质和运算 -
ueseu:
引用(2) DomainDomain域名也是Cookie的一部 ...
Cookie的组成 -
ueseu:
引用Secure取true或者false值。如果为true,那 ...
Cookie的组成 -
liqi___123:
理解得很透彻,谢谢!!
ROLAP、MOLAP和HOLAP联机分析处理区别
在网页中嵌入Base64编码文件
通过这种方法可以将任何文件转换为Base64编码
这里给出在线转换的网站:http://www.motobit.com/util/base64-decoder-encoder.asp
例子:
显示被存储为Base64编码字符串的图片的例子
使用data: URI直接在网页中嵌入.
data: URI定义于IETF标准的RFC 2397
data: URI的基本使用格式如下:
data:[<MIME-type>][;base64|charset=some_charset],<data>
mime-type是嵌入数据的mime类型,比如png图片就是image/png。
如果后面跟base64,说明后面的data是采用base64方式进行编码的。
代码如下:
- <html>
- <body>
- <img src='data:image/gif;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAkGBwgHBgkIBwgKCgkLDRYPDQwMDRsUFRAWIB0iIiAd
- Hx8kKDQsJCYxJx8fLT0tMTU3Ojo6Iys/RD84QzQ5Ojf/2wBDAQoKCg0MDRoPDxo3JR8lNzc3Nzc3
- Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzf/wAARCACKAGMDASIA
- AhEBAxEB/8QAGwAAAgMBAQEAAAAAAAAAAAAAAAQBAwUGAgf/xABCEAACAQMBBAYHAwoFBQAAAAAB
- AgMABBEFBhIhMRNBUWFxgRQiMkKRocEjUtEHFTNicoKSsbLCFqLS4fAlNDVTdP/EABQBAQAAAAAA
- AAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwD7hRUVNBBIAyTw
- ql7uBAS0gAHXzrzqF3HaQb8nEkhVXGSxPIAVRbxyyMJZx9pzVM5Cf70FhupZf+2gbH35QUHw51Tc
- R6nIv2V3bRn/AOdj/eKfVMcySa9bo7B8KDm5I9qIDvQXNjcge4yMuf5/zrS0fULq6jddSsWs50OC
- N/eR+9Tw+BFadK3kEcxi6WFJVV84YZAPLl50DVFLSxPCnSWo4rzj6mHYOw17trhLiISIeB6uyguo
- oooIooooJqCd0ZPKprH2jkZ7ZLKNiHu3ER3ee7zf/LkeLCgrsCdVvG1DOYFylrw4BeRk8W447FAP
- XW0ihBha8W0K28CRIAqqAAByFW0BRRRQRUMoIwe3NeqW1C49FtWl4ZBAAPXxoGKQnRrK4NzGPsXP
- 2ydn647+3tHHq4tWdwl1bpMnJh8Oo1awDKQaAUhgCDkGppa0HRb0B4BOKD9X/b8KZoCiiiggnAJr
- Ets3m0Ukh4x2kW6v7THif8vyFbUmdw45ngKy9nlUx3lwvKW6dVP6qfZj+knzoNaioqaAooqMgY76
- BLULKe6dGh1G4tAoIYRBfWyDx4g8ckfCud13S5t5YRrWpMI4Zrl8unqgKQPd6y3Dwrpbu5SNTlwF
- HM9n/OJ8qyp4JbzTdRnUYlvkFvDn3Yz6o+bMaBHZ+yugZrGTVrxDupcxFdzJSRRnmpzhlbs9qupt
- ozFBHG0rzFVA6STG83ecACsrW19Aez1OIYS0PRTAf+hsAn90hW8A1aVnMJBImcmNyPI8R8iKDzfH
- olS5HOI+t3qef40yDkZFVXib9rKo4kqcUvo0/T2EeeaeofLl8sUDtFFFBTezrbWstw/sxI0jeABP
- 0pDZRGTZzTw/tmEM57WPE/MmvO1bFdnr1BzlQRD98hfrTWiYOj2RHIwIfkKBwsAyjtqia5C3CwLx
- fd3iO7kPjx+Bqq9n6GRXIJ3QcAcSTwAHzpLZ/pJI7jUrtvWuHLIx4KsY4LjuwM+B7c0GszCOMtIw
- HaTWYb83N0VgzuL6iEe83vHwAwPEnsrOe8k1y8dYnMenQrvvIOBZeYOe1uY7FGfeFWCY2enNcxwg
- zzKBBCOGAfYXu7T2CgVvJW1TXo9HtWzFbgS3jjkAfZXxP9PiK19SXUAFEF1DZwp7O5bmeQ8OzkPg
- anZvRxpNiRI3SXc7ma5lI4vI3PyHAAdQFcL+V7S9o9Z02aXTGlFnZToDZxpvekLu5aRl94BiF3cH
- 2WPHhQdtpt1bXu/atqbXjlSHRhFxHWCFHAeNI2k0mj6vBp87MyOBFFIx9tMncz3j1lPb6p68Vw/5
- ONlPzisuqa7HEJ5IwkUsFmtt0DhhuGPdVfWHrZIHWAc8RXW7YrOdU0yGBs3LgNE5HvxneHkTQdme
- IwaxdEboL+9s26nLr39vyK1qWdwl3aQ3MXsSoHXPYRmkujWPXt48Olh3ge9eHzBPwoNOijFFBj7T
- ENaxxdpaQjuVT9StM6D/AOHtB92ML8OH0pLaNt2Kdzyjt8A97MM/00/o43bIJ91iPr9aDI2oumjt
- dQihfE4iG7jmu9jB+K1DRnXehgtiE0iJF3sH9Pw9VB+p2nrHLgc142q09ZjJeNI6rEUWUZ4GM4z4
- cevsz3YX/JhqAudDnsXcNPp1y8Dke8Oat4EH5UG3f20Vtpno68I5ZB0zdbAnLnxIBHyFNQ2280c1
- wg6UZbH3WPD5DhRJH6VeoG/RWx3iPvSEcPgDnxI7KcoIqi5s7e6ZWnjDOnsuCVZfAjiKYooK1gjB
- U7u8V5FiWI8zXG7azrDtTs4GOFJmLnOMDC8SfjXbV8t2+H5z/KBYWIHSRWtkJJVABALu2Ac/sg4+
- lB2uyV2l1ZXHRDEC3DmDviY7ynzzw7sUzqR6O8tJh7kgU+DHd/k1J6IBbX7W4JO/AjEk+8C2f6hT
- mtIWiYKPW3GI8Rx+lBp0UKQyhhyPEUUGJtYP+lPu+0x+OBWhp5CpKOrpB81U/WkdpDvQFOeEyfN1
- X6mrFl6Gwu5vuRiT+FB/poGL+Pehu1PsyQH4jP4iuEtLj8w7b2V3wSx1fToUuMDAWRSEV/IlV/fz
- 1V9CuAHjA573qjzBrgdeiD6Zs7dMqMolmtHDjgVdW592YxQfQ0UKDjrJJr1WNp18ltBDHNKzwMej
- jlkOWVgPZc+R9b48eJ2M9lAVOaivEsqQoXkYKo+fd30FOp39rpen3F/fSrFbW6F5HY8gK+Y7IdNq
- mr32u3ilbm+m3kRj+iQDCL3YUDJ/kSSiW3Wr3Ov65Lp1xMbTT7N23YSQCzKAekkPHlngMHHA8ScU
- 7sxMvo7rArdBECDvDJc893B7zkjrJCk+2zB2lkQdajZMlVg3QfF0OfMHPgR1k1r3RDXkCHrz81b8
- Kz7GHcie5b2jIMnOc8QefX1caZuJM6laHtyD5HH1oNGFSkKKfdUD5UVIGBiigx9aG9bXr9jwR/B1
- P91REOn069h7YWQ/w4/Grtfj3NHvXXmMSn90qf7aX0hsy6omf0cpTH8X0IoGNEuTd7PaVdMcma3g
- kPmqn61kR6et/onorFlEGovulDxUb7YI8mB8687C3Jk2E08k5MDmA925MUHyArY0ldy7vVHsySmT
- l+7j/L8+6gwtTSSPZu5eNVLwqk6gcAAjBmPhugjryFHOvelXF/DZme2k+zBA9HkRnXPUBjiCeeBk
- Dsqdaa5/Nl3bRjennPo2FIOWcbvDtALDPnnHCuhhtDapGsIDRqeCjhjJOST1nt86DOg1DaC7bdj0
- a3tUzxmubrPDtCKuT4ErWpbWjI/TXUxnn6mK7qp3KvV8z301U0Hx7anTIv8AGN+8zMCZ42QFeDFl
- UgD73EnhyyBkjhjatjbQ6TMsSIqLCd0L75ZSRnxBLfsnPOQhew1XRLe+ufSJULl1ETqCRlc4zwPY
- TzzWZf7NRxJJP0zMN1x0eAFyx4YHmM8eOO80DtpcGaLVowSRDPwJ5n1VP414dw05mHEQXAJ8Gcf6
- s+VJ7NSia51ZieEzdJ/E0v0ApzQ06aTUonwQrpGQf2Bmg36KAMADOaKCu7gW6tZrd/ZlRkPgRisL
- Z/JvdeQnLi4APj0a/XNdF1VjaTbG01W9V/anUTHzkk/kCooOc2GJi2U1OPPCHUZiO4Flf+6ulsgj
- 3U0YLZZpd4g4ON/l3f8AO2sDZmzntdA15JUKlrmR0z1jcUfSuo02LAaXHtu5znqLkj+dBZLbBJIJ
- IY1xCGUIABwOOXV1VatxGThiVPY6kVbRQKw39tM7qkqEKSN7eGDjnVqy9IfsgSv3zy8u2vXRoWDF
- FLduK90EAY680lrR3dLuH+4oc+AIP0p6qriETwvExIDDGRQcZoKPZy3AcFWxAHXsJE2Rnr4mtfY9
- +mj1Gf792f6E/Gqtpk9DQyxL+kCoMdbgPu/M0/szaGzsJEIwWmZuXVwA+QFBr0UUUBSd0pS9tZxy
- 9aJu4Ngj5rjzpyjGedBSYFMMkQHqvnPnXjTVKafbK3tCJQfHHGmaKAqOupooCiiigKKKKBO/sheS
- 2pkxuQyiQjtI5U0Fwcjwr1RQFFFFB//Z'/>
- </body>
- </html>
同理,这种方法可以将任何文件嵌入到你的网页中,如HTM/HTML,主要代码:'data:text/html;base64,+你的编码'
下面给出MIME-Type 列表(文件类型参照):
3gp video/3gpp
aab application/x-authoware-bin
aam application/x-authoware-map
aas application/x-authoware-seg
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
asc text/plain
asd application/astound
asf video/x-ms-asf
asn application/astound
asp application/x-asap
asx video/x-ms-asf
au audio/basic
avb application/octet-stream
avi video/x-msvideo
awb audio/amr-wb
bcpio application/x-bcpio
bin application/octet-stream
bld application/bld
bld2 application/bld2
bmp application/x-MS-bmp
bpk application/octet-stream
bz2 application/x-bzip2
cal image/x-cals
ccn application/x-cnc
cco application/x-cocoa
cdf application/x-netcdf
cgi magnus-internal/cgi
chat application/x-chat
class application/octet-stream
clp application/x-msclip
cmx application/x-cmx
co application/x-cult3d-object
cod image/cis-cod
cpio application/x-cpio
cpt application/mac-compactpro
crd application/x-mscardfile
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
dhtml text/html
dir application/x-director
dll application/octet-stream
dmg application/octet-stream
dms application/octet-stream
doc application/msword
dot application/x-dot
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
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/x-envoy
exe application/octet-stream
fh4 image/x-freehand
fh5 image/x-freehand
fhc image/x-freehand
fif image/fif
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
hdf application/x-hdf
hdm text/x-hdml
hdml text/x-hdml
hlp application/winhlp
hqx application/mac-binhex40
htm text/html
html text/html
hts text/html
ice x-conference/x-cooltalk
ico application/octet-stream
ief image/ief
ifm image/gif
ifs image/ifs
imy audio/melody
ins application/x-NET-Install
ips application/x-ipscript
ipx application/x-ipix
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
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
lsf video/x-ms-asf
lsx video/x-ms-asf
lzh application/x-lzh
m13 application/x-msmediaview
m14 application/x-msmediaview
m15 audio/x-mod
m3u audio/x-mpegurl
m3url audio/x-mpegurl
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
mi application/x-mif
mid audio/midi
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 audio/x-mpeg
mp3 audio/x-mpeg
mp4 video/mp4
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
mrl text/x-mrml
mrm application/x-mrm
ms application/x-troff-ms
mts application/metastream
mtx application/metastream
mtz application/metastream
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
oda application/oda
oom application/x-AtlasMate-Plugin
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
pgm image/x-portable-graymap
pict image/x-pict
pm application/x-perl
pmd application/x-pmd
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
pqf application/x-cprplayer
pqi application/cprplayer
prc application/x-prc
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/x-rar-compressed
ras image/x-cmu-raster
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
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
sdf application/e-score
sea application/x-stuffit
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 text/x-speech
spl application/futuresplash
spr application/x-sprite
sprite application/x-sprite
spt application/x-spt
src application/x-wais-source
stk application/hyperstudio
stm audio/x-mod
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-tar
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
tsv text/tab-separated-values
ttf application/octet-stream
ttz application/t-time
txt text/plain
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
web application/vnd.xara
wi image/wavelet
wis application/x-InstallShield
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
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
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
xlt application/vnd.ms-excel
xlw application/vnd.ms-excel
xm audio/x-mod
xml text/xml
xmz audio/x-mod
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
发表评论
-
http返回网页状态码查询
2013-05-18 23:29 1059当你想查询某个页面的 ... -
铱迅Web应用防护系统(WAF)介绍
2013-05-04 22:41 0产品介绍 铱迅Web应用防护系统(也称:铱迅w ... -
javascript地址栏写法
2013-05-01 11:43 12280. 前言 所谓IE地址栏 ... -
javascript单引号和双引号区别
2012-09-10 16:58 795在一个网页中的按钮,写onclick事件的处理代码,不小 ... -
超链接打开目标(target)的测试
2012-05-28 12:51 821链接的target属性决定了链接在哪边打开,它的值通常为以下五 ... -
JSP中文验证码
2012-05-14 17:18 1248以上两篇文章的内容介绍了有关JSP中产生数字验证码跟中文验证 ... -
CSS简写方法说明
2011-10-26 14:15 1027简单的说,css简写就是在等效的前提下,把多句 ... -
ZK框架简介
2011-07-21 08:08 13731、ZK框架简介 ZK框架是 ... -
使用document.domain跨域实例
2011-05-29 22:42 2015Ajax跨域一直是个比较麻烦的问题,例如:断 ... -
再谈iframe自适应高度
2011-05-18 15:56 1029转自:http://ued.koubei.com/?p=243 ... -
JavaScript修改css样式style
2011-05-18 15:26 1078用JavaScript修改网页样式一、局部改变样式分为改变 ... -
关于multipart/related;boundary=
2011-05-16 09:51 3314http协议对mime类型有详细描述,multipart/ ... -
MIME邮件格式分析及信息提取
2011-05-16 09:50 2015摘 要 MIME是目前互联网邮件普遍采用的 ... -
SSO三种方案
2011-03-11 18:13 12731、基于domain的方案。 应用A在a.domain ... -
在网页中嵌入任意字体的解决方案
2011-01-30 17:29 4401字体使用是网页设计中不可或缺的一部分。经常地,我们希望在 ... -
面向站长和网站管理员的Web缓存加速指南
2011-01-04 16:18 822原文(英文) ... -
Cookie的组成
2010-12-28 11:21 3658Cookie的组成 下面讲解一下Cookie的组成,对HTT ... -
可缓存的动态页面设计
2010-12-24 14:21 1347什么样的页面能够比较好的被缓存服务器缓存呢?如果返回内容的HT ... -
Apache缓存系统
2010-12-22 13:52 1919Apache 从2.0开始就 ... -
使用htmlfile隐藏IE浏览器正在打开网页状态的代码
2010-12-20 16:30 2269一般情况下,采用长连接,能持续的在客户端显示信息。 比如 ...
相关推荐
在.NET环境中,我们可以使用System.Text.Encoding类的GetBytes方法将图片文件读取为字节数组,然后使用Convert.ToBase64String方法进行Base64编码。编码后的字符串可以直接用作Data URI中的`<data>`部分。以下是一个...
第二种则是使用Data URI scheme直接在标签中嵌入Base64编码后的图片数据,如下所示:<img src="data:image/gif;base64,R0lGODlhAgACAIAAAP///wAAACwAAAAAAgACAAACAoRRADs=" />。这种方式可以节省HTTP请求,但需要...
### Data URI浅析 #### Data URI简介 Data URI是一种特殊的数据表示形式,它允许将小文件内嵌到超文本标记...在实际应用中,合理选择是否使用Base64编码,以及注意文件大小限制,都是开发过程中需要注意的关键点。
"将图片进行Base64编码后传输"是一种高效且便捷的方式,它允许我们直接将图片数据嵌入到文本格式中,方便在网络中传递。这种技术广泛应用于JSON API、HTML页面以及任何不支持二进制数据流的系统。 Base64是一种编码...
要在网页中显示 Base64 编码的图片,可以使用 data URI 方案。data URI 方案是一种将小文件内嵌到 HTML 页面中的方法,特别适合于内联图片。 data URI 的格式如下: ``` data:[][;base64|charset=some_charset],...
在IT领域,尤其是在Web开发中,图片文件与Base64编码字节数组字符串的转换是一种常见的操作。这种转换在不直接使用图片文件路径或URL,而是将图片数据嵌入到HTML、CSS或JavaScript中时非常有用。下面我们将详细探讨...
在本文件中,提供了使用Data URI scheme实现图片base64编码的示例。示例中展示了如何将一个GIF格式的图片文件转换为base64编码的字符串,并将其嵌入到HTML中的标签的src属性中。通过这种方式,图片数据被直接嵌入到...
本文将深入探讨如何在dataURI中正确使用SVG,以实现高效、灵活的Web图形展示。 首先,了解dataURI的基本原理。dataURI是一种URL scheme,它允许在单一的URL内直接包含文件内容。其基本格式如下: ``` data:[][;...
在给定的“ASP源码—图片base64编码互转工具.zip”压缩包中,我们可以推测它包含了一个ASP应用程序,该程序允许用户将图片转换为Base64编码,或者将Base64编码还原为图片。 1. **Base64编码**:Base64是一种在网络...
在上述代码中,`base64ToBytes`方法使用Java的Base64解码器将base64字符串解码为字节数组,`saveImage`方法将这些字节写入指定路径的文件,完成图片的还原。 四、前端代码示例 前端代码通常涉及用户上传图片、压缩...
"图片转BASE64编码"的主题涉及到如何将图片文件转换为Base64编码,这在Web开发中尤其有用,因为可以通过内联方式在HTML或CSS中嵌入图片,减少HTTP请求,提高页面加载速度。 Base64编码的工作原理是将每3个8位字节...
- 返回生成的Base64字符串,可以在HTML中直接嵌入到`<img>`标签的`data:` URI中。 5. **解码过程**: - 接受Base64编码的字符串。 - 使用Base64解码算法将字符串转换回原始二进制数据。 - 将解码后的数据写入新的...
将图片转换为Base64字符串后,可以直接嵌入到HTML的`<img>`标签的`src`属性中,或者在JavaScript中使用,避免了HTTP请求的开销,提高了页面加载速度,尤其是在服务端渲染或离线应用场景中。 3. **JavaScript加载...
在IT行业中,Base64是一种常见的数据编码方法,它用于将二进制数据转换为ASCII字符串,以便在不支持二进制传输的环境下(如电子邮件系统或某些文本格式的文件)进行传输。在这个"图片转-base64-上传示例"的压缩包中...
在HTML中使用datauri嵌入图片的这种方式有优点也有局限性。其优点是可以减少HTTP请求,加快页面加载速度(尤其是在图片数量多但体积小的场景下),同时也能够在没有外部网络连接的情况下正常显示图片。但是,将图片...
在网页设计和开发中,CSS(层叠样式表)用于控制网页元素的外观,而Base64是一种数据编码方式,常用于将二进制数据转换为可直接在文本上下文中使用的ASCII字符串。当我们谈论“Css图片与Base64互转工具”时,我们指...
JS在浏览器中解析Base64编码图像,指的是使用JavaScript在网页中嵌入和显示Base64编码的图像。 在浏览器中,图像可以通过data:URI模式嵌入到HTML中,这是一种MIME类型,允许直接在MIME头部中包含数据。Data:URI的...
1. **编码**: 将本地文件或内存中的二进制数据转换为数据URI,使用Base64算法将二进制数据编码为ASCII字符串,并结合数据URI的格式构造完整的URI字符串。 2. **解码**: 从数据URI中提取并解码Base64编码的数据,...