{"id":226,"date":"2016-03-28T11:23:09","date_gmt":"2016-03-28T03:23:09","guid":{"rendered":"http:\/\/blog.xrhoujie.com\/?p=226"},"modified":"2017-07-31T17:17:01","modified_gmt":"2017-07-31T09:17:01","slug":"data-url%e5%92%8c%e5%9b%be%e7%89%87%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"http:\/\/blog.xrhoujie.com\/?p=226","title":{"rendered":"Data Url\u548c\u56fe\u7247\u64cd\u4f5c"},"content":{"rendered":"
\n
\n

data url\u7ed9\u4e86\u6211\u4eec\u4e00\u79cd\u5f88\u5de7\u5999\u7684\u5c06\u56fe\u7247\u201c\u5d4c\u5165\u201d\u5230HTML\u4e2d\u7684\u65b9\u6cd5\u3002\u8ddf\u4f20\u7edf\u7684\u7528img<\/code>\u6807\u8bb0\u5c06\u670d\u52a1\u5668\u4e0a\u7684\u56fe\u7247\u5f15\u7528\u5230\u9875\u9762\u4e2d\u7684\u65b9\u5f0f\u4e0d\u4e00\u6837\uff0c\u5728Data URL\u534f\u8bae\u4e2d\uff0c\u56fe\u7247\u88ab\u8f6c\u6362\u6210base4\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u5f62\u5f0f\uff0c\u5e76\u5b58\u50a8\u5728URL\u4e2d\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5c06\u4ecb\u7ecd\u5982\u4f55\u5de7\u5999\u7684\u4f7f\u7528Data URL\u4f18\u5316\u7f51\u7ad9\u52a0\u8f7d\u901f\u5ea6\u548c\u6267\u884c\u6548\u7387\u3002<\/p>\n

1. Data URL\u57fa\u672c\u539f\u7406<\/h5>\n

\u56fe\u7247\u5728\u7f51\u9875\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5\u901a\u5e38\u662f\u4e0b\u9762\u8fd9\u79cd\u5229\u7528img<\/code>\u6807\u8bb0\u7684\u5f62\u5f0f\uff1a<\/p>\n

<<\/span>img src<\/span>=<\/span>\"<\/span>images\/myimage.gif \"<\/span><\/span>><\/span><\/span><\/pre>\n
\u8fd9\u79cd\u65b9\u5f0f\u4e2d\uff0cimg<\/code>\u6807\u8bb0\u7684src<\/code>\u5c5e\u6027\u6307\u5b9a\u4e86\u4e00\u4e2a\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u7684\u8d44\u6e90\u3002\u5f53\u7f51\u9875\u52a0\u8f7d\u5230\u6d4f\u89c8\u5668\u4e2d\u65f6\uff0c\u6d4f\u89c8\u5668\u4f1a\u9488\u5bf9\u6bcf\u4e2a\u5916\u90e8\u8d44\u6e90\u90fd\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e00\u6b21\u62c9\u53d6\u8d44\u6e90\u8bf7\u6c42\uff0c\u5360\u7528\u7f51\u7edc\u8d44\u6e90\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u901a\u5e38\u6240\u8bf4\u7684\u56fe\u7247\u53d1\u9001url\u8bf7\u6c42\u3002\u5927\u591a\u6570\u7684\u6d4f\u89c8\u5668\u90fd\u6709\u4e00\u4e2a\u5e76\u53d1\u8bf7\u6c42\u6570\u4e0d\u80fd\u8d85\u8fc74\u4e2a\u7684\u9650\u5236\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c\u4e00\u4e2a\u7f51\u9875\u91cc\u5d4c\u5165\u4e86\u8fc7\u591a\u7684\u5916\u90e8\u8d44\u6e90\uff0c\u8fd9\u4e9b\u8bf7\u6c42\u4f1a\u5bfc\u81f4\u6574\u4e2a\u9875\u9762\u7684\u52a0\u8f7d\u5ef6\u8fdf\u3002\u800c\u4f7f\u7528Data URL\u6280\u672f\uff0c\u56fe\u7247\u6570\u636e\u4ee5base64\u5b57\u7b26\u4e32\u683c\u5f0f\u5d4c\u5165\u5230\u4e86\u9875\u9762\u4e2d\uff0c\u4e0eHTML\u6210\u4e3a\u4e00\u4f53\uff0c\u5b83\u7684\u5f62\u5f0f\u5982\u4e0b\uff1a<\/p>\n
<<\/span>img src<\/span>=<\/span>\"<\/span>data:image\/gif;base64,R0lGODlhMwAxAIAAAAAAAP\/\/\/\r\nyH5BAAAAAAALAAAAAAzADEAAAK8jI+pBr0PowytzotTtbm\/DTqQ6C3hGX\r\nElcraA9jIr66ozVpM3nseUvYP1UEHF0FUUHkNJxhLZfEJNvol06tzwrgd\r\nLbXsFZYmSMPnHLB+zNJFbq15+SOf50+6rG7lKOjwV1ibGdhHYRVYVJ9Wn\r\nk2HWtLdIWMSH9lfyODZoZTb4xdnpxQSEF9oyOWIqp6gaI9pI1Qo7BijbF\r\nZkoaAtEeiiLeKn72xM7vMZofJy8zJys2UxsCT3kO229LH1tXAAAOw=<\/span>=<\/span>\"<\/span><\/span>><\/span><\/span><\/pre>\n
\u4ece\u4e0a\u9762\u7684base64\u5b57\u7b26\u4e32\u4e2d\u4f60\u770b\u4e0d\u51fa\u4efb\u4f55\u8ddf\u56fe\u7247\u76f8\u5173\u7684\u4e1c\u897f\uff0c\u4f46\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u4f20\u7edf\u7684img<\/code>\u5199\u6cd5\u548c\u73b0\u5728\u7684Data URL\u7528\u6cd5\u5de6\u53f3\u5bf9\u6bd4\u663e\u793a\uff0c\u4f60\u5c31\u80fd\u770b\u51fa\u5b83\u4eec\u662f\u5b8c\u5168\u4e00\u6837\u7684\u6548\u679c\u3002\u4f46\u5b9e\u9645\u4e0a\u5b83\u4eec\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u5b83\u4eec\u4e00\u4e2a\u662f\u5f15\u7528\u4e86\u5916\u90e8\u8d44\u6e90\uff0c\u4e00\u4e2a\u662f\u4f7f\u7528\u4e86Data URL\u3002<\/p>\n<\/div>\n
\u51e0\u4e4e\u6240\u6709\u7684\u73b0\u4ee3\u6d4f\u89c8\u5668\u90fd\u652f\u6301Data URL\u683c\u5f0f\uff0c\u5305\u62ec\u706b\u72d0\u6d4f\u89c8\u5668\uff0c\u8c37\u6b4c\u6d4f\u89c8\u5668\uff0cSafari\u6d4f\u89c8\u5668\uff0copera\u6d4f\u89c8\u5668\u3002IE8\u4e5f\u652f\u6301\uff0c\u4f46\u6709\u90e8\u5206\u9650\u5236\uff0cIE9\u5b8c\u5168\u652f\u6301\u3002<\/p>\n
2. \u4e3a\u4ec0\u4e48Data URL\u662f\u4e2a\u597d\u4e1c\u897f<\/h5>\n
Data URL\u80fd\u7528\u5728\u5f88\u591a\u573a\u5408\uff0c\u8ddf\u4f20\u7edf\u7684\u5916\u90e8\u8d44\u6e90\u5f15\u7528\u65b9\u5f0f\u76f8\u6bd4\uff0c\u5b83\u6709\u5982\u4e0b\u72ec\u5230\u7684\u7528\u5904\uff1a<\/p>\n
(1).\u5f53\u8bbf\u95ee\u5916\u90e8\u8d44\u6e90\u5f88\u9ebb\u70e6\u6216\u53d7\u9650\u65f6(\u7531\u4e8e\u56fe\u7247\u662f\u5199\u8fdb\u4ee3\u7801\u91cc\u9762\uff0c\u6240\u4ee5\u5373\u4fbf\u53d7\u9650\u72b6\u6001\u4f9d\u65e7\u53ef\u4ee5\u8bbf\u95ee\u7684\u5230)<\/p>\n
(2).\u5f53\u56fe\u7247\u662f\u5728\u670d\u52a1\u5668\u7aef\u7528\u7a0b\u5e8f\u52a8\u6001\u751f\u6210\uff0c\u6bcf\u4e2a\u8bbf\u95ee\u7528\u6237\u663e\u793a\u7684\u90fd\u4e0d\u540c\u65f6(\u8fd9\u6070\u6070\u610f\u5473\u7740\u52a8\u6001\u751f\u6210\u5bfc\u81f4url\u8bf7\u6c42\u8fc7\u591a\uff0c\u540c\u6837\u7528data url\u5d4c\u5165\u4f60\u53ea\u9700\u8981\u66f4\u6539\u4e00\u4e0b\u4e3b\u4f53\u7f16\u7801\u800c\u5df2\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5f00\u9500)<\/p>\n
(3).\u5f53\u56fe\u7247\u7684\u4f53\u79ef\u592a\u5c0f\uff0c\u5360\u7528\u4e00\u4e2aHTTP\u4f1a\u8bdd\u4e0d\u662f\u5f88\u503c\u5f97\u65f6\u3002<\/p>\n
3. \u540c\u6837DATA URL\u4e5f\u6709\u4e00\u5b9a\u7684\u52a3\u52bf<\/h5>\n
(1)Base64\u7f16\u7801\u7684\u6570\u636e\u4f53\u79ef\u901a\u5e38\u662f\u539f\u6570\u636e\u7684\u4f53\u79ef4\/3\uff0c\u4e5f\u5c31\u662fData URL\u5f62\u5f0f\u7684\u56fe\u7247\u4f1a\u6bd4\u4e8c\u8fdb\u5236\u683c\u5f0f\u7684\u56fe\u7247\u4f53\u79ef\u59271\/3\u3002<\/p>\n
(2)Data URL\u5f62\u5f0f\u7684\u56fe\u7247\u4e0d\u4f1a\u88ab\u6d4f\u89c8\u5668\u7f13\u5b58\uff0c\u8fd9\u610f\u5473\u7740\u6bcf\u6b21\u8bbf\u95ee\u8fd9\u6837\u9875\u9762\u65f6\u90fd\u88ab\u4e0b\u8f7d\u4e00\u6b21\u3002\u8fd9\u662f\u4e00\u4e2a\u4f7f\u7528\u6548\u7387\u65b9\u9762\u7684\u95ee\u9898\u2014\u2014\u5c24\u5176\u5f53\u8fd9\u4e2a\u56fe\u7247\u88ab\u6574\u4e2a\u7f51\u7ad9\u5927\u91cf\u4f7f\u7528\u7684\u65f6\u5019(\u4e0b\u6587\u4f1a\u6839\u636e\u8fd9\u4e2a\u95ee\u9898\u63d0\u4f9b\u89e3\u51b3\u65b9\u6848)\u3002<\/p>\n
\u7136\u800c\uff0cData URL\u8fd9\u4e9b\u4e0d\u5229\u7684\u5730\u65b9\u5b8c\u5168\u53ef\u4ee5\u907f\u514d\u6216\u8f6c\u5316\u3002<\/p>\n
\u62ff\u521a\u8fc7\u63d0\u5230\u7684\u95ee\u9898\uff0c\u6b63\u5982\u6211\u4eec\u6240\u8bf4\u7684\u4e00\u6837data url\u7684\u56fe\u7247\u4e0d\u4f1a\u88ab\u6d4f\u89c8\u5668\u7f13\u5b58\uff0c\u4f46\u662f\u6709\u51e0\u79cd\u529e\u6cd5\u4f1a\u8ba9\u5b83\u6210\u529f\u88ab\u6d4f\u89c8\u5668\u7f13\u5b58\u3002<\/p>\n
1.\u5c06\u56fe\u7247\u5199\u5165css\u91cc\u9762\u6267\u884c\uff0c\u8fd9\u6837\u80fd\u591f\u4fdd\u8bc1\u5b83\u88ab\u5199\u5165\u7f13\u5b58\u3002<\/p>\n
CSS\u4e2d\u7684url<\/code>\u64cd\u4f5c\u7b26\u662f\u7528\u6765\u6307\u5b9a\u7f51\u9875\u5143\u7d20\u7684\u80cc\u666f\u56fe\u7247\u7684\uff0c\u800c\u6d4f\u89c8\u5668\u5e76\u4e0d\u5728\u610fURL\u91cc\u5199\u7684\u662f\u4ec0\u4e48\u2014\u2014\u53ea\u8981\u80fd\u901a\u8fc7\u5b83\u83b7\u53d6\u9700\u8981\u7684\u6570\u636e\u3002\u6240\u4ee5\uff0c\u6211\u4eec\u5c31\u6709\u4e86\u53ef\u4ee5\u5c06Data URL\u5f62\u5f0f\u7684\u56fe\u7247\u5b58\u50a8\u5728CSS\u6837\u5f0f\u8868\u4e2d\u7684\u53ef\u80fd\u3002\u800c\u6240\u6709\u6d4f\u89c8\u5668\u90fd\u4f1a\u79ef\u6781\u7684\u7f13\u5b58CSS\u6587\u4ef6\u6765\u63d0\u9ad8\u9875\u9762\u52a0\u8f7d\u6548\u7387\uff0c\u56e0\u6b64\u8fd9\u4e2a\u529e\u6cd5\u662f\u786e\u5b9e\u53ef\u884c\u7684\uff0c\u5173\u4e8edata url\u4ecb\u7ecd\u5c31\u5230\u8fd9\u91cc\uff0c\u6b22\u8fce\u5927\u795e\u524d\u6765\u5410\u69fd<\/p>\n
\"\"<\/p>\n
 <\/p>\n
 <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
data url\u7ed9\u4e86\u6211\u4eec\u4e00\u79cd\u5f88\u5de7\u5999\u7684\u5c06\u56fe\u7247\u201c\u5d4c\u5165\u201d\u5230HTML\u4e2d\u7684\u65b9\u6cd5\u3002\u8ddf\u4f20\u7edf\u7684\u7528img\u6807\u8bb0\u5c06\u670d\u52a1\u5668\u4e0a\u7684\u56fe\u7247\u5f15\u7528 […]<\/p>\n","protected":false},"author":1,"featured_media":168,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/226"}],"collection":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=226"}],"version-history":[{"count":1,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/226\/revisions"}],"predecessor-version":[{"id":227,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/226\/revisions\/227"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/media\/168"}],"wp:attachment":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=226"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}