{"id":266,"date":"2013-07-03T21:52:16","date_gmt":"2013-07-03T13:52:16","guid":{"rendered":"http:\/\/coderbee.net\/?p=266"},"modified":"2019-01-06T21:27:23","modified_gmt":"2019-01-06T13:27:23","slug":"html5-%e6%96%87%e4%bb%b6%e6%8b%96%e6%8b%bd%e4%b8%8a%e4%bc%a0","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/web\/20130703\/266","title":{"rendered":"html5 \u6587\u4ef6\u62d6\u62fd\u4e0a\u4f20\u53ca\u8de8\u57df\u5904\u7406"},"content":{"rendered":"<p>html5 \u6587\u4ef6\u62d6\u62fd\u4e0a\u4f20\u662f\u4e2a\u8001\u8bdd\u9898\u4e86\uff0c\u7f51\u4e0a\u6709\u5f88\u591a\u4f8b\u5b50\uff0c\u6211\u4e00\u5f00\u59cb\u7684\u4ee3\u7801\u4e5f\u662f\u7f51\u4e0a\u627e\u6765\u6539\u7684\uff0c\u53ea\u662f\u8e29\u4e86\u51e0\u4e2a\u5751\u4e4b\u540e\u5c31\u60f3\u628a\u8fc7\u7a0b\u8bb0\u5f55\u4e0b\u6765\u3002<\/p>\n<h2>\u529f\u80fd\u5b9e\u73b0<\/h2>\n<p>\u4e0b\u9762\u4e3b\u8981\u4ecb\u7ecd\u4ece\u6d4f\u89c8\u5668\u5916\u62d6\u62fd\u6587\u4ef6\u5230\u6d4f\u89c8\u5668\u8fdb\u884c\u4e0a\u4f20\u7684\u5b9e\u73b0\u3002<br \/>\n<!--more--><\/p>\n<h3>\u62d6\u62fd\u4e8b\u4ef6<\/h3>\n<p>\u62d6\u62fd\u4e8b\u4ef6\u6709\u4e0b\u9762\u8fd9\u4e9b\uff1a<\/p>\n<ul>\n<li><code>dragstart<\/code>\uff1a\u5f53\u7528\u6237\u5f00\u59cb\u62d6\u52a8\u5bf9\u8c61\u65f6\u89e6\u53d1\u3002<\/li>\n<li><code>dragenter<\/code>\uff1a \u5f53\u9f20\u6807\u7b2c\u4e00\u6b21\u7ecf\u8fc7\u76ee\u6807\u5143\u7d20\uff0c\u4e14\u6709\u62d6\u52a8\u53d1\u751f\u65f6\u89e6\u53d1\u3002\u6b64\u4e8b\u4ef6\u7684\u76d1\u542c\u8005\u5e94\u6307\u660e\u5728\u8fd9\u4e2a\u4f4d\u7f6e\u4e0a\u662f\u5426\u5141\u8bb8drop\uff0c\u6216\u8005\u76d1\u542c\u8005\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u90a3\u4e48drop\u9ed8\u8ba4\u662f\u4e0d\u5141\u8bb8\u7684\u3002<\/li>\n<li><code>dragover<\/code>\uff1a\u5f53\u9f20\u6807\u7ecf\u8fc7\u4e00\u4e2a\u5143\u7d20\u65f6\uff0c\u4e14\u6709\u62d6\u52a8\u53d1\u751f\u65f6\u89e6\u53d1 \u3002<\/li>\n<li><code>dragleave<\/code>\uff1a\u5f53\u9f20\u6807\u79bb\u5f00\u4e00\u4e2a\u5143\u7d20\uff0c\u4e14\u6709\u62d6\u52a8\u5728\u53d1\u751f\u65f6\u89e6\u53d1\u3002<\/li>\n<li><code>drag<\/code>\uff1a \u5f53\u5bf9\u8c61\u88ab\u62d6\u52a8\uff0c\u6bcf\u6b21\u79fb\u52a8\u9f20\u6807\u65f6\u89e6\u53d1\u3002<\/li>\n<li><code>drop<\/code>\uff1a\u5728drag\u64cd\u4f5c\u7684\u6700\u540e\u53d1\u751fdrop\u65f6\uff0c\u5728\u5143\u7d20\u4e0a\u89e6\u53d1\u6b64\u4e8b\u4ef6\u3002\u76d1\u542c\u8005\u5e94\u8be5\u8d1f\u8d23\u68c0\u7d22\u62d6\u52a8\u7684\u6570\u636e\uff0c\u5e76\u63d2\u5165drop\u7684\u4f4d\u7f6e\u3002<\/li>\n<li><code>dragend<\/code>\uff1a \u5728\u62d6\u52a8\u5bf9\u8c61\u65f6\u653e\u5f00\u9f20\u6807\u6309\u952e\u65f6\u89e6\u53d1\u3002<\/li>\n<\/ul>\n<p>\u4ece\u6d4f\u89c8\u5668\u5916\u62d6\u62fd\u6587\u4ef6\u5230\u6d4f\u89c8\u5668\u65f6\uff0c\u5fc5\u987b\u8981\u7ed1\u5b9a\u7684\u4e8b\u4ef6\u6709 <code>dragover<\/code> \u548c <code>drop<\/code>\uff0c\u5176\u4ed6\u7684\u90fd\u53ef\u4ee5\u4e0d\u7ed1\u5b9a\u3002** <code>dragover<\/code> \u548c <code>drop<\/code> \u4e8b\u4ef6\u7684\u5904\u7406\u51fd\u6570\u5185\u5fc5\u987b\u8c03\u7528\u4e8b\u4ef6\u7684 <code>preventDefault()<\/code> \u51fd\u6570**\uff0c\u8981\u4e0d\u7136\u6d4f\u89c8\u5668\u4f1a\u8fdb\u884c\u9ed8\u8ba4\u5904\u7406\uff0c\u6bd4\u5982\u6587\u672c\u7c7b\u578b\u7684\u6587\u4ef6\u76f4\u63a5\u6253\u5f00\uff0c\u975e\u6587\u672c\u7684\u53ef\u80fd\u5f39\u51fa\u4e00\u4e2a\u4e0b\u8f7d\u6587\u4ef6\u6846\u3002<\/p>\n<h3>DataTransfer\u5bf9\u8c61<\/h3>\n<p>\u62d6\u62fd\u5bf9\u8c61\u7528\u6765\u4f20\u9012\u6570\u636e\u7684\u5a92\u4ecb\uff0c\u901a\u8fc7\u62d6\u62fd\u4e8b\u4ef6\u7684 <code>event.dataTransfer<\/code> \u83b7\u53d6\u3002<\/p>\n<ul>\n<li><code>dataTransfer.dropEffect [ = value ]<\/code>\uff1a\u8fd4\u56de\u5f53\u524d\u9009\u62e9\u7684\u64cd\u4f5c\u7c7b\u578b\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u65b0\u7684\u503c\u6765\u4fee\u6539\u5df2\u9009\u62e9\u7684\u64cd\u4f5c\u3002\u53ef\u9009\u7684\u503c\u6709\uff1a <code>none, copy, link, move<\/code> \u3002<\/li>\n<li><code>dataTransfer.effectAllowed [ = value ]<\/code>\uff1a\u8fd4\u56de\u5141\u8bb8\u7684\u64cd\u4f5c\u7c7b\u578b\uff0c\u53ef\u4fee\u6539\u3002\u53ef\u9009\u7684\u503c\u6709\uff1a<code>none, copy, copyLink, copyMove, link, linkMove, move, all, uninitialized<\/code> \u3002<\/li>\n<li><code>dataTransfer.types<\/code>\uff1a\u8fd4\u56de\u4e00\u4e2aDOMString\uff0c\u5217\u51fa\u5728dragstart\u4e8b\u4ef6\u91cc\u8bbe\u7f6e\u7684\u6240\u6709\u683c\u5f0f\u3002\u53e6\u5916\uff0c\u5982\u679c\u6709\u6587\u4ef6\u88ab\u62d6\u52a8\uff0c\u90a3\u4e48\u5176\u4e2d\u4e00\u4e2a\u7c7b\u578b\u7684\u5b57\u7b26\u4e32\u5c06\u662f\u201cFiles\u201d\u3002<\/li>\n<li><code>dataTransfer.clearData( [ format ] )<\/code>\uff1a\u79fb\u9664\u6307\u5b9a\u683c\u5f0f\u7684\u6570\u636e\u3002\u5982\u679c\u5ffd\u7565\u53c2\u6570\u5219\u79fb\u9664\u6240\u6709\u6570\u636e\u3002<\/li>\n<li><code>dataTransfer.setData(format, data)<\/code>\uff1a\u6dfb\u52a0\u6307\u5b9a\u7684\u6570\u636e\u3002<\/li>\n<li><code>data = dataTransfer.getData(format)<\/code>\uff1a\u8fd4\u56de\u6307\u5b9a\u7684\u6570\u636e\u3002\u5982\u679c\u6ca1\u6709\u8fd9\u6837\u7684\u6570\u636e\uff0c\u5219\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32\u3002<\/li>\n<li><code>dataTransfer.files<\/code>\uff1a\u8fd4\u56de\u88ab\u62d6\u62fd\u7684FileList\uff0c\u5982\u679c\u6709\u3002<\/li>\n<li><code>dataTransfer.setDragImage(element, x, y)<\/code>\uff1a\u7528\u6307\u5b9a\u7684\u5143\u7d20\u6765\u66f4\u65b0drag\u53cd\u9988\uff0c\u66ff\u6362\u4e4b\u524d\u6307\u5b9a\u7684\u53cd\u9988\uff08feedback\uff09\u3002<\/li>\n<li><code>dataTransfer.addElement(element)<\/code>\uff1a\u6dfb\u52a0\u6307\u5b9a\u5143\u7d20\u5230\u7528\u4e8e\u6e32\u67d3drag\u53cd\u9988\u7684\u5143\u7d20\u5217\u8868\u3002<\/li>\n<\/ul>\n<p>\u5728\u8fd9\u4e2a\u7528\u4f8b\u91cc\uff0c\u6700\u91cd\u8981\u7684\u5c31\u662f <code>dataTransfer.files<\/code> \u5c5e\u6027\uff0c\u5b83\u662f\u7528\u6237\u62d6\u62fd\u8fdb\u6d4f\u89c8\u5668\u7684\u6587\u4ef6\u5217\u8868\uff0c\u662f\u4e2a <code>FileList<\/code> \u5bf9\u8c61\uff0c\u6709 <code>length<\/code> \u5c5e\u6027\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e0b\u6807\u8bbf\u95ee\u3002<\/p>\n<h3>FormData<\/h3>\n<p><code>FormData<\/code> \u4ee3\u8868\u4e00\u4e2a\u8868\u5355\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>append('fieldName', value)<\/code> \u51fd\u6570\u5f80\u8868\u5355\u91cc\u6dfb\u52a0\u53c2\u6570\uff0c\u53c2\u6570\u7684\u53ea\u4e0d\u4ec5\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\uff0c\u8fd8\u53ef\u4ee5\u662fFile\u5bf9\u8c61\uff0c\u751a\u81f3\u4e8c\u8fdb\u5236\u6570\u636e\u3002<\/p>\n<h3>XMLHttpRequest level 2<\/h3>\n<p>\u65b0\u7248\u672c\u7684XMLHttpRequest\u5bf9\u8c61\uff0c\u8fd9\u91cc\u8bf4\u7684XMLHttpRequest\u90fd\u662f\u6307\u65b0\u7248\u7684\u3002<\/p>\n<p>XMLHttpRequest\u53ef\u4ee5\u5411\u4e0d\u540c\u57df\u540d\u7684\u670d\u52a1\u5668\u53d1\u51faHTTP\u8bf7\u6c42\u3002\u8fd9\u53eb\u505a &#8220;\u8de8\u57df\u8d44\u6e90\u5171\u4eab&#8221;\uff08Cross-origin resource sharing\uff0c\u7b80\u79f0CORS\uff09\u3002<\/p>\n<p>\u6d4f\u89c8\u5668\u6709\u4e2a\u8457\u540d\u7684\u540c\u6e90\u7b56\u7565\uff0c\u8fd9\u91cc\u6d4f\u89c8\u5668\u5b89\u5168\u7684\u57fa\u7840\uff0cCORS \u9664\u4e86\u9700\u8981\u6d4f\u89c8\u5668\u652f\u6301\u5916\uff0c\u8fd8\u8981\u670d\u52a1\u5668\u540c\u610f\u3002<\/p>\n<p>XMLHttpRequest \u652f\u6301\u76f4\u63a5\u53d1\u9001FormData\uff0c\u5c31\u50cf\u6d4f\u89c8\u5668\u8fdb\u884c\u8868\u5355\u63d0\u4ea4\u4e00\u6837\u3002<\/p>\n<p>XMLHttpRequest \u8fd8\u652f\u6301\u8fdb\u5ea6\u4fe1\u606f\uff08<code>progress<\/code>\u4e8b\u4ef6\uff09\uff0c\u8fdb\u5ea6\u5206\u4e3a\u4e0a\u4f20\u8fdb\u5ea6\u548c\u4e0b\u8f7d\u8fdb\u5ea6\uff0c\u4e0a\u4f20\u8fdb\u5ea6\u7684\u4e8b\u4ef6\u662f\u5728 <code>XMLHttpRequest.upload<\/code> \u5bf9\u8c61\u4e0a\uff0c\u4e0b\u8f7d\u8fdb\u5ea6\u7684\u4e8b\u4ef6\u662f\u5728 <code>XMLHttpRequest<\/code> \u5bf9\u8c61\u3002\u6bcf\u4e2a\u8fdb\u5ea6\u4e8b\u4ef6\u90fd\u6709\u4e09\u4e2a\u5c5e\u6027\uff1a<\/p>\n<ul>\n<li><code>lengthComputable<\/code>\uff1a\u53ef\u8ba1\u7b97\u7684\u5df2\u4e0a\u4f20\u5b57\u8282 \u6570<\/li>\n<li><code>total<\/code>\uff1a\u603b\u7684\u5b57\u8282 \u6570<\/li>\n<li><code>loaded<\/code>\uff1a\u5230\u76ee\u524d\u4e3a\u6b62\u4e0a\u4f20\u7684\u5b57\u8282 \u6570<\/li>\n<\/ul>\n<p>\u9664\u4e86\u8fdb\u5ea6\u4e8b\u4ef6\uff0c\u8fd8\u652f\u6301\u4e0b\u9762\u4e94\u4e2a\u4e8b\u4ef6\uff1a<\/p>\n<ul>\n<li><code>load<\/code>\u4e8b\u4ef6\uff1a\u4f20\u8f93\u6210\u529f\u5b8c\u6210\u3002<\/li>\n<li><code>abort<\/code>\u4e8b\u4ef6\uff1a\u4f20\u8f93\u88ab\u7528\u6237\u53d6\u6d88\u3002<\/li>\n<li><code>error<\/code>\u4e8b\u4ef6\uff1a\u4f20\u8f93\u4e2d\u51fa\u73b0\u9519\u8bef\u3002<\/li>\n<li><code>loadstart<\/code>\u4e8b\u4ef6\uff1a\u4f20\u8f93\u5f00\u59cb\u3002<\/li>\n<li><code>loadend<\/code>\u4e8b\u4ef6\uff1a\u4f20\u8f93\u7ed3\u675f\uff0c\u4f46\u662f\u4e0d\u77e5\u9053\u6210\u529f\u8fd8\u662f\u5931\u8d25\u3002<\/li>\n<\/ul>\n<p>\u540c <code>progress<\/code>\u4e8b\u4ef6\u4e00\u6837\uff0c\u5c5e\u4e8e\u4e0a\u4f20\u64cd\u4f5c\u7684\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u7ed1\u5b9a\u5728<code>XMLHttpRequest.upload<\/code>\u5bf9\u8c61\u4e0a\uff0c\u5c5e\u6027\u4e0b\u8f7d\u7684\u76f4\u63a5\u7ed1\u5b9a\u5728 <code>XMLHttpRequest<\/code> \u5bf9\u8c61\u3002<\/p>\n<h3>\u5177\u4f53\u4ee3\u7801<\/h3>\n<h4>\u670d\u52a1\u5668\u7aef<\/h4>\n<p>\u670d\u52a1\u5668\u7aef\u9700\u8981\u5199\u4e2aServlet\u6765\u63a5\u6536\u4e0a\u4f20\u7684\u8868\u5355\u3002 <code>\/html5\/FileUploadServlet<\/code><\/p>\n<h4>\u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<pre><code>\r\n&lt;html&gt;\r\n&lt;head&gt;\r\n&lt;title&gt; drag drop upload demo\r\n&lt;meta http-equiv=\"content-type\" content=\"text\/html; charset=UTF-8\" \/&gt;\r\n&lt;\/head&gt;\r\n&lt;body&gt;\r\n       &lt;div id= \"progressBarZone\"&gt;\u8bf7\u5c06\u6587\u4ef6\u62d6\u62fd\u8fdb\u6d4f\u89c8\u5668\u5185\uff01 &lt;br\/&gt;&lt;\/ div&gt;\r\n&lt;\/body&gt;\r\n\r\n&lt;script&gt;\r\nvar progressBarZone = document.getElementById('progressBarZone');\r\n\r\nfunction sendFile(files) {\r\n       if (!files || files.length &lt; 1) {\r\n             return;\r\n      }\r\n\r\n       var percent = document.createElement('div' );\r\n      progressBarZone.appendChild(percent);\r\n\r\n       var formData = new FormData();             \/\/ \u521b\u5efa\u4e00\u4e2a\u8868\u5355\u5bf9\u8c61FormData\r\n      formData.append( 'submit', '\u4e2d\u6587' );  \/\/ \u5f80\u8868\u5355\u5bf9\u8c61\u6dfb\u52a0\u6587\u672c\u5b57\u6bb5\r\n\r\n       var fileNames = '' ;\r\n\r\n       for ( var i = 0; i &lt; files.length; i++) {\r\n             var file = files[i];    \/\/ file \u5bf9\u8c61\u6709 name, size \u5c5e\u6027\r\n\r\n            formData.append( 'file[' + i + ']' , file);       \/\/ \u5f80FormData\u5bf9\u8c61\u6dfb\u52a0File\u5bf9\u8c61\r\n\r\n            fileNames += '\u300a' + file.name + '\u300b\uff0c ' ;\r\n      }\r\n\r\n       var xhr = new XMLHttpRequest();\r\n      xhr.upload.addEventListener( 'progress',\r\n             function uploadProgress(evt) {\r\n                   \/\/ evt \u6709\u4e09\u4e2a\u5c5e\u6027\uff1a\r\n                   \/\/ lengthComputable \u2013 \u53ef\u8ba1\u7b97\u7684\u5df2\u4e0a\u4f20\u5b57\u8282\u6570\r\n                   \/\/ total \u2013 \u603b\u7684\u5b57\u8282\u6570\r\n                   \/\/ loaded \u2013 \u5230\u76ee\u524d\u4e3a\u6b62\u4e0a\u4f20\u7684\u5b57\u8282\u6570\r\n                   if (evt.lengthComputable) {\r\n                        percent.innerHTML = fileNames + ' upload percent :' + Math.round((evt.loaded \/ evt.total)  * 100) + '%\r\n' ;\r\n                  }\r\n            }, false); \/\/ false\u8868\u793a\u5728\u4e8b\u4ef6\u5192\u6ce1\u9636\u6bb5\u5904\u7406\r\n\r\n      xhr.upload.onload = function() {\r\n            percent.innerHTML = fileNames + '\u4e0a\u4f20\u5b8c\u6210\u3002\r\n\r\n' ;\r\n      };\r\n\r\n      xhr.upload.onerror = function(e) {\r\n            percent.innerHTML = fileNames + ' \u4e0a\u4f20\u5931\u8d25\u3002\r\n\r\n' ;\r\n      };\r\n\r\n      xhr.open( 'post', 'http:\/\/cross.site.com:8080\/html5\/FileUploadServlet' , true);\r\n      xhr.send(formData);            \/\/ \u53d1\u9001\u8868\u5355\u5bf9\u8c61\u3002\r\n}\r\n\r\ndocument.addEventListener(\"dragover\", function(e) {\r\n      e.stopPropagation();\r\n      e.preventDefault();            \/\/ \u5fc5\u987b\u8c03\u7528\u3002\u5426\u5219\u6d4f\u89c8\u5668\u4f1a\u8fdb\u884c\u9ed8\u8ba4\u5904\u7406\uff0c\u6bd4\u5982\u6587\u672c\u7c7b\u578b\u7684\u6587\u4ef6\u76f4\u63a5\u6253\u5f00\uff0c\u975e\u6587\u672c\u7684\u53ef\u80fd\u5f39\u51fa\u4e00\u4e2a\u4e0b\u8f7d\u6587\u4ef6\u6846\u3002\r\n}, false);\r\n\r\ndocument.addEventListener(\"drop\", function(e) {\r\n      e.stopPropagation();\r\n      e.preventDefault();            \/\/ \u5fc5\u987b\u8c03\u7528\u3002\u5426\u5219\u6d4f\u89c8\u5668\u4f1a\u8fdb\u884c\u9ed8\u8ba4\u5904\u7406\uff0c\u6bd4\u5982\u6587\u672c\u7c7b\u578b\u7684\u6587\u4ef6\u76f4\u63a5\u6253\u5f00\uff0c\u975e\u6587\u672c\u7684\u53ef\u80fd\u5f39\u51fa\u4e00\u4e2a\u4e0b\u8f7d\u6587\u4ef6\u6846\u3002\r\n\r\n      sendFile(e.dataTransfer.files);\r\n}, false);\r\n&lt;\/script&gt;\r\n&lt;\/html&gt;\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4e0a\u9762\u7684\u4ee3\u7801\u90fd\u90e8\u7f72\u5728\u540c\u4e00\u4e2a\u7f51\u7ad9\u4e0b\uff0c\u90a3\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002\u53ef\u662f\u6211\u8981\u505a\u7684\u4e0a\u4f20\u64cd\u4f5c\u662f\u8981\u628a\u6587\u4ef6\u4f20\u5230\u53e6\u4e00\u4e2a\u7f51\u7ad9\u4e0a\uff0c\u5751\u4e5f\u5c31\u4ea7\u751f\u4e86\u3002<\/p>\n<h2>\u8e29\u8fc7\u7684\u5751<\/h2>\n<p>\u5751\u5176\u5b9e\u53ea\u6709\u4e00\u4e2a\uff0c\u53ea\u662f\u8868\u73b0\u51fa\u6765\u7684\u5f62\u6001\u5f88\u591a\u3002\u6bd4\u5982\u524d\u9762\u7684\u4ee3\u7801\u5982\u679c\u5728 xhr.upload \u4e0a\u7ed1\u5b9a\u4e86\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u65f6\uff0c\u8bf7\u6c42\u90fd\u4e0d\u53d1\u9001\uff1b\u5728xhr\u4e0a\u7ed1\u5b9a\u7684\u4e8b\u4ef6\u4e5f\u6ca1\u6709\u56de\u8c03\u3002\u4e00\u5f00\u59cb\u603b\u662f\u5728Firefox\u4e0b\u6d4b\u8bd5\uff0c\u600e\u4e48\u6539\u4ee3\u7801\u90fd\u4e0d\u884c\uff0c\u56e0\u4e3a\u4e0d\u662f\u4ee3\u7801\u95ee\u9898\uff0c\u4e0a\u9762\u7684\u4ee3\u7801\u662f\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n<p>\u5728firebug\u4e0a\u770b\u5927\u6982\u662f\u8fd9\u6837\u7684\uff1a<br \/>\n<a href=\"\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-firebug.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-265\" alt=\"cross-domain-error-in-firebug\" src=\"\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-firebug-300x192.png\" width=\"300\" height=\"192\" srcset=\"https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-firebug-300x192.png 300w, https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-firebug.png 562w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u770b\u4e0d\u51fa\u662f\u4ec0\u4e48\u95ee\u9898\u3002\u4e0d\u8fc7\u5728Chrome\u4e0b\u770b\u5c31\u53ef\u4ee5\u53d1\u73b0\u95ee\u9898\u6240\u5728\u4e86\uff1a<br \/>\n<a href=\"\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-chrome.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-263\" alt=\"cross-domain-error-in-chrome\" src=\"\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-chrome-300x31.png\" width=\"300\" height=\"31\" srcset=\"https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-chrome-300x31.png 300w, https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-chrome-1024x107.png 1024w, https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-chrome-624x65.png 624w, https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-error-in-chrome.png 1079w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u4ece\u4e0a\u9762\u53ef\u4ee5\u770b\u5230\uff0c\u95ee\u9898\u5728\u4e8e\u6d4f\u89c8\u5668\u7684\u540c\u6e90\u7b56\u7565\uff0c\u4e5f\u5c31\u662f\u8de8\u57df\u7684\u95ee\u9898\u3002<\/p>\n<h3>\u540c\u6e90\u7b56\u7565<\/h3>\n<p>\u540c\u6e90\u7b56\u7565\u963b\u6b62\u4ece\u4e00\u4e2a\u6e90\u52a0\u8f7d\u7684\u6587\u6863\u6216\u811a\u672c\u83b7\u53d6\u6216\u8bbe\u7f6e\u53e6\u4e00\u4e2a\u6e90\u52a0\u8f7d\u7684\u6587\u6863\u7684\u5c5e\u6027\u3002\u8fd9\u662f\u6d4f\u89c8\u5668\u5b89\u5168\u7684\u57fa\u7840\u3002<\/p>\n<h4>\u6e90<\/h4>\n<p>\u5982\u679c\u4e24\u4e2a\u9875\u9762\u7684\u534f\u8bae\u3001\u7aef\u53e3\uff08\u5982\u679c\u6307\u660e\u4e86\u7684\u8bdd\uff09\u548c\u4e3b\u673a\u540d\u90fd\u76f8\u540c\uff0c\u8ba4\u4e3a\u8fd9\u4e24\u4e2a\u9875\u9762\u62e5\u6709\u76f8\u540c\u7684\u6e90\u3002<\/p>\n<p>\u4e0b\u8868\u7ed9\u51fa\u4e86\u76f8\u5bf9 <code>http:\/\/store.company.com\/dir\/page.html<\/code> \u540c\u6e90\u68c0\u6d4b\u7684\u7ed3\u679c:<\/p>\n<pre>URL                                              \u7ed3\u679c      \u539f\u56e0\r\nhttp:\/\/store.company.com\/dir2\/other.html         \u6210\u529f\r\nhttp:\/\/store.company.com\/dir\/inner\/another.html  \u6210\u529f\r\nhttps:\/\/store.company.com\/secure.html            \u5931\u8d25      \u534f\u8bae\u4e0d\u540c\r\nhttp:\/\/store.company.com:81\/dir\/etc.html         \u5931\u8d25      \u7aef\u53e3\u4e0d\u540c\r\nhttp:\/\/news.company.com\/dir\/other.html           \u5931\u8d25      \u4e3b\u673a\u540d\u4e0d\u540c<\/pre>\n<h4>\u540c\u6e90\u7b56\u7565\u7684\u4f8b\u5916<\/h4>\n<p>\u5728\u540c\u6e90\u7b56\u7565\u4e2d\u6709\u4e00\u4e2a\u4f8b\u5916\uff0c\u811a\u672c\u53ef\u4ee5\u8bbe\u7f6e <code>document.domain<\/code> \u7684\u503c\u4e3a\u5f53\u524d\u57df\u7684\u4e00\u4e2a\u540e\u7f00\uff0c\u6bd4\u5982\u57df <code>store.company.com<\/code> \u7684\u540e\u7f00\u53ef\u4ee5\u662f <code>company.com<\/code>\u3002\u5982\u679c\u8fd9\u6837\u505a\u7684\u8bdd\uff0c\u77ed\u7684\u57df\u5c06\u4f5c\u4e3a\u540e\u7eed\u540c\u6e90\u68c0\u6d4b\u7684\u4f9d\u636e\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u5728 <code>http:\/\/store.company.com\/dir\/other.html<\/code> \u4e2d\u7684\u4e00\u4e2a\u811a\u672c\u6267\u884c\u4e86\u4e0b\u5217\u8bed\u53e5\uff1a<br \/>\n<code>document.domain = \"company.com\";<\/code><\/p>\n<p>\u8fd9\u6761\u8bed\u53e5\u6267\u884c\u4e4b\u540e\uff0c\u9875\u9762\u5c06\u4f1a\u6210\u529f\u5730\u901a\u8fc7\u5bf9 <code>http:\/\/company.com\/dir\/page.html<\/code> \u7684\u540c\u6e90\u68c0\u6d4b\u3002\u800c\u540c\u7406\uff0c<code>company.com<\/code> \u4e0d\u80fd\u8bbe\u7f6e <code>document.domain<\/code> \u4e3a <code>othercompany.com<\/code>.<\/p>\n<h4>\u6d4f\u89c8\u5668\u5bf9\u8de8\u57df\u8bf7\u6c42\u7684\u5904\u7406<\/h4>\n<p>\u5f53\u6d4f\u89c8\u5668\u8981\u6267\u884c\u4e00\u4e2a\u8de8\u57df\u8bf7\u6c42\u8d44\u6e90\u65f6\uff0c\u5206\u4e24\u6b65\u6765\u6267\u884c\uff1a<\/p>\n<ol>\n<li>\u9996\u5148\u7528 <code>HTTP OPTIONS<\/code> \u65b9\u6cd5\u8bf7\u6c42\u8be5\u8d44\u6e90\uff0c\u83b7\u53d6\u54cd\u5e94\u5934\uff0c\u8fd9\u4e00\u6b65\u4e0d\u4f1a\u643a\u5e26\u5b9e\u9645\u7684\u53c2\u6570\u3002\u5982\u679c\u54cd\u5e94\u5934\u6709 <code>Access-Control-Allow-Origin<\/code> \u57df\uff0c\u4e14\u5176\u503c\u4e3a <code>*<\/code> \u6216\u8005\u4e0e\u8bf7\u6c42\u5934\u7684<code>Origin<\/code>\u57df\u7684\u503c\u8fdb\u884c\u540c\u6e90\u68c0\u6d4b\u662f\u540c\u6e90\u7684\uff0c\u5219\u8fdb\u884c\u7b2c\u4e8c\u6b65\uff0c\u5426\u5219\u7ec8\u6b62\u8bf7\u6c42\u3002<\/li>\n<li>\u53d1\u9001\u5b9e\u9645\u7684\u8bf7\u6c42\u53bb\u83b7\u53d6\u8d44\u6e90\u3002<\/li>\n<\/ol>\n<p>\u6ce8\u610f\u4e0b\u56fe\u7ea2\u8272\u7684\u8bf7\u6c42\uff0c\u5931\u8d25\u540e\u5c31\u6ca1\u6709\u540e\u7eed\u7684POST\u8bf7\u6c42\u4e86\u3002<br \/>\n<a href=\"\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-in-chrome.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-264\" alt=\"cross-domain-in-chrome\" src=\"\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-in-chrome-300x185.png\" width=\"300\" height=\"185\" srcset=\"https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-in-chrome-300x185.png 300w, https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-in-chrome-624x384.png 624w, https:\/\/coderbee.net\/wp-content\/uploads\/2013\/07\/cross-domain-in-chrome.png 663w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>** <code>Access-Control-Allow-Origin<\/code> \u57df\u7684\u503c\u4e3a<code>*<\/code>\u8868\u793a\u5141\u8bb8\u4efb\u610f\u7ad9\u70b9\u8bf7\u6c42\u8be5\u670d\u52a1\u5668\u7684\u8d44\u6e90\uff1b<code>*<\/code>\u53ea\u80fd\u72ec\u7acb\u4f7f\u7528\uff0c\u4e0d\u80fd\u4f5c\u4e3a\u57df\u7684\u4e00\u90e8\u5206\u4f7f\u7528\uff0c\u5982 <code>*.site.com<\/code> \u4e0e <code>cross.site.com<\/code>\u662f\u4e0d\u540c\u6e90\u7684\u3002 **<\/p>\n<p>\u66f4\u591a\u4fe1\u606f\u53ef\u4ee5\u53c2\u8003\uff1a<\/p>\n<ul>\n<li>\u5ba2\u6237\u7aef\u8bbe\u7f6e\uff0cHTTP access control (CORS) <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/HTTP\/Access_control_CORS?redirectlocale=en-US&amp;redirectslug=HTTP_access_control\">https:\/\/developer.mozilla.org\/en-US\/docs\/HTTP\/Access_control_CORS?redirectlocale=en-US&amp;redirectslug=HTTP_access_control<\/a><\/li>\n<li>\u670d\u52a1\u5668\u7aef\u8bbe\u7f6e\uff0cServer-Side Access Control <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Server-Side_Access_Control\">https:\/\/developer.mozilla.org\/en-US\/docs\/Server-Side_Access_Control<\/a><\/li>\n<\/ul>\n<h3>\u6d4b\u8bd5\u9a8c\u8bc1<\/h3>\n<p>\u53ef\u4ee5\u67e5\u770b\u6211\u90e8\u7f72\u7684\u6d4b\u8bd5demo\uff1a <a href=\"http:\/\/coderbee.net\/html5\/crossdomain.html\" target=\"_blank\">http:\/\/coderbee.net\/html5\/crossdomain.html<\/a><\/p>\n<p>\u5efa\u8bae\u5728Chrome\u4e0b\u89c2\u5bdf\uff0cxhr\u8bf7\u6c42\u7684<a href=\"http:\/\/198.56.238.193\/html5\/crossdomain.php\">http:\/\/198.56.238.193\/html5\/crossdomain.php<\/a>\uff0c\u5728\u5904\u7406OPTIONS\u8bf7\u6c42\u65f6\u4f1a\u52a8\u6001\u8fd4\u56deAccess-Control-Allow-Origin\u54cd\u5e94\u5934\uff1a<\/p>\n<pre><code>\r\n$randnum = rand(5, 10);\r\nif ($_SERVER['REQUEST_METHOD']=='OPTIONS' && ($randnum % 2) == 1) {\r\n        header(\"Access-Control-Allow-Origin: http:\/\/198.56.238.193\");\r\n} else {\r\n        header(\"Access-Control-Allow-Origin: http:\/\/coderbee.net\");\r\n}\r\n<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr\/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>html5 \u6587\u4ef6\u62d6\u62fd\u4e0a\u4f20\u662f\u4e2a\u8001\u8bdd\u9898\u4e86\uff0c\u7f51\u4e0a\u6709\u5f88\u591a\u4f8b\u5b50\uff0c\u6211\u4e00\u5f00\u59cb\u7684\u4ee3\u7801\u4e5f\u662f\u7f51\u4e0a\u627e\u6765 &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/web\/20130703\/266\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[62,63,64],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/266"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=266"}],"version-history":[{"count":21,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/266\/revisions"}],"predecessor-version":[{"id":1762,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/266\/revisions\/1762"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}