{"id":11507,"date":"2025-01-12T23:53:31","date_gmt":"2025-01-12T15:53:31","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11507"},"modified":"2025-01-12T23:53:31","modified_gmt":"2025-01-12T15:53:31","slug":"js-broadcast-channel-api","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2025\/01\/js-broadcast-channel-api\/","title":{"rendered":"Broadcast Channel API\u7b80\u4ecb\uff0c\u53ef\u5b9e\u73b0Web\u9875\u9762\u5e7f\u64ad\u901a\u4fe1"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11507\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=11507<\/a><br \/>\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u72ec\u7acb\u57df\u540d\u4e2a\u4eba\u7f51\u7ad9\u65e0\u9700\u6388\u6743\uff0c\u4f46\u9700\u8981\u4fdd\u7559\u539f\u4f5c\u8005\u3001\u51fa\u5904\u4ee5\u53ca\u6587\u4e2d\u94fe\u63a5\uff0c\u4efb\u4f55\u7f51\u7ad9\u5747\u53ef\u6458\u8981\u805a\u5408\uff0c\u5546\u7528\u8bf7\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202501-broadcast-channel.jpg';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/Broadcast-Channel-cover.jpg\" width=\"480\" height=\"304\" alt=\"Broadcast-Channel\u5c01\u9762\u56fe\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<h3>\u4e00\u3001\u4e4b\u524dpostMessage\u7684\u5c40\u9650<\/h3>\n<p>\u572812\u5e74\u7684\u65f6\u5019\uff0c\u4e56\u4e56\uff0c12\u5e74\u554a\uff0c\u90fd\u5341\u51e0\u5e74\u524d\u4e86\uff0c\u6211\u6709\u5199\u8fc7\u5173\u4e8epostMessage\u7684\u8de8\u9875\u9762\u901a\u4fe1\u7684\u6587\u7ae0\uff0c\u89c1<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=2229\">\u8fd9\u91cc<\/a>\u3002<\/p>\n<p>\u7ed3\u679c\u8fd9\u4e48\u591a\u5e74\u4e0b\u6765\uff0c\u5728\u751f\u4ea7\u73af\u5883\u4f7f\u7528\u4e0a\u8ff0postMessage\u901a\u4fe1\u7684\u673a\u4f1a\u5c48\u6307\u53ef\u6570\uff0c\u8fd9\u79cd\u8de8\u9875\u9762\u901a\u4fe1\u5e73\u5e38\u7684\u4ea4\u4e92\u5f0f\u9875\u9762\u662f\u9c9c\u6709\u673a\u4f1a\u63a5\u89e6\u7684\u3002<\/p>\n<p>\u7136\u540e\uff0c\u73b0\u5728\u6709\u591a\u4e86\u4e2aBroadcast Channel API\uff0c\u4e5f\u662f\u5b9e\u73b0\u9875\u9762\u89c1\u901a\u4fe1\u7684\u3002<\/p>\n<p>\u548c\u5341\u591a\u5e74\u524d\u7684\u8fd9\u4e2a\u901a\u4fe1\u533a\u522b\u5728\u4e8e\uff0c\u8fd9\u4e2a\u662f\u5e7f\u64ad\u5f0f\u7684\uff0c\u800c\u975e\u70b9\u5bf9\u70b9\u3002<\/p>\n<p>\u6240\u8c13\u5e7f\u64ad\u901a\u4fe1\uff0c\u5c31\u662f\u6240\u6709\u57df\u540d\u76f8\u540c\u7684\u9875\u9762\uff0cA\u53d1\u9001\u6d88\u606f\uff0c\u5176\u4ed6\u6240\u6709\u9875\u9762\u90fd\u80fd\u63a5\u6536\u5230\uff0c\u8fd9\u5728\u9700\u8981\u6570\u636e\u5b9e\u65f6\u540c\u6b65\u7684\u573a\u5408\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h3>\u4e8c\u3001Broadcast Channel\u4f7f\u7528\u633a\u7b80\u5355\u7684<\/h3>\n<p>Broadcast Channel API\u770b\u8d77\u6765\u590d\u6742\uff0c\u5b9e\u9645\u4f7f\u7528\u7b80\u5355\u5730\u51fa\u4e4e\u610f\u6599\uff0c\u6211\u60f3\uff0c\u6700\u590d\u6742\u7684\u5e94\u8be5\u5c31\u662f\u8fd9\u4e2aAPI\u7684\u62fc\u5199\u4e86\u3002<\/p>\n<p>\u662f\u8fd9\u6837\u7684\uff0c\u6240\u6709\u9700\u8981\u901a\u4fe1\u7684\u9875\u9762\u90fdnew\u4e00\u4e2a\u76f8\u540c\u7684\u5e7f\u64ad\u901a\u9053\uff0c\u5c31\u50cf\u8fd9\u91cc\uff1a<\/p>\n<pre>const bc = new BroadcastChannel('zhangxinxu');<\/pre>\n<p>\u7136\u540e\u4e00\u4e2a\u9875\u9762\u53d1\u9001\uff0c\u5c31\u50cf\u8fd9\u6837\uff1a<\/p>\n<pre>bc.postMessage('\u6b22\u8fce\u652f\u6301\u6b63\u7248\u4e66\u7c4d');<\/pre>\n<p>\u7136\u540e\u5176\u4ed6\u9875\u9762\u5c31\u80fd\u63a5\u6536\u5230\u8fd9\u4e2a\u4fe1\u606f\uff1a<\/p>\n<pre>const bc = new BroadcastChannel('zhangxinxu');\r\nbc.onmessage = function (event) {\r\n    console.log(event.data);\r\n    \/\/ \u8f93\u51fa'\u6b22\u8fce\u652f\u6301\u6b63\u7248\u4e66\u7c4d'\r\n};<\/pre>\n<p>\u5c31\u8fd9\u6837\u7ed3\u675f\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/201904\/go-home.png\" width=\"240\" height=\"135\" alt=\"\u7ed3\u675f\u4e86\uff0c\u56de\u5bb6\u5427\" class=\"alignnone size-medium\"><\/p>\n<h3>\u4e09\u3001\u6f14\u793a\u6848\u4f8b<\/h3>\n<p>\u4e3a\u4e86\u6f14\u793a\u65b9\u4fbf\uff0c\u6211\u4f7f\u7528iframe\u5c06\u6570\u4e2a\u9875\u9762\u51fb\u4e2d\u5728\u4e86\u4e00\u8d77\uff0c\u5de6\u4fa7\u662f\u4e3b\u9875\u9762\uff0c\u53f3\u4fa7\u5206\u522b\u662fiframe-a.html\u548ciframe-b.html\u3002<\/p>\n<p>\u8fd9\u4e09\u4e2a\u9875\u9762\u90fd\u521b\u5efa\u4e86\u4e00\u4e2a\u540c\u540d\u7684BroadcastChannel\u5bf9\u8c61\u3002<\/p>\n<p>\u4e3b\u9875\u9762\u53d1\u9001\uff0c\u4e24\u4e2aiframe\u5185\u5d4c\u9875\u63a5\u53d7\uff0c\u7ed3\u679c\uff0c\u5f53\u6211\u4eec\u70b9\u51fb\u6309\u94ae\u7684\u65f6\u5019\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/2025-01-10_223142.png\" width=\"498\" height=\"325\" alt=\"\u70b9\u51fb\u6f14\u793a\u9875\u9762\u6309\u94ae\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u53f3\u4fa7\u7684iframe\u9875\u9762\u5c31\u63a5\u53d7\u5230\u4e86\u53d1\u9001\u7684\u4fe1\u606f\uff0c\u5982\u4e0b\u622a\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/2025-01-10_223219.png\" width=\"654\" height=\"490\" alt=\"\u9875\u9762\u8f93\u51fa\u7ed3\u679c\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6211\u4eec\u8fd8\u53ef\u4ee5\u4fee\u6539\u8f93\u5165\u6846\u7684\u5185\u5bb9\uff0c\u67e5\u770b\u53d1\u9001\u4e0d\u540c\u4fe1\u606f\u7684\u7ed3\u679c\uff0c\u4f8b\u5982\uff0c\u6211\u4eec\u5382\u6700\u8fd1\u70ed\u64ad\u7684\u300a\u5927\u5949\u6253\u66f4\u4eba\u300b\u548c\u300a\u56fd\u8272\u82b3\u534e\u300b<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/2025-01-10_223633.png\" width=\"721\" height=\"252\" alt=\"\u81ea\u5b9a\u4e49post\u6570\u636e\u7ed3\u679c\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h4>Demo\u8bbf\u95ee<\/h4>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202501\/js-broadcast-channel-demo.php\" rel=\"noopener\" target=\"_blank\">Broadcast Channel API\u4f7f\u7528\u793a\u610fdemo<\/a><\/p>\n<h3>\u56db\u3001\u517c\u5bb9\u6027\u548c\u5176\u4ed6<\/h3>\n<p>\u76ee\u524d\u5e7f\u64ad\u901a\u4fe1API\u7684\u517c\u5bb9\u6027\u8fd8\u662f\u5f88\u4e0d\u9519\u7684\uff0ccaniuse\u7f51\u7ad9\u622a\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/2025-01-10_223935.png\" width=\"629\" height=\"214\" alt=\"BroadcastChannel\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>BroadcastChannel\u4e0d\u4ec5\u53ef\u4ee5\u7528\u5728window\u4e0a\u4e0b\u6587\u73af\u5883\u4e2d\uff0c\u5728Web Worker\u4e2d\u4e5f\u662f\u53ef\u4ee5\u81ea\u5982\u4f7f\u7528\u7684\u3002<\/p>\n<p>\u4e0d\u4ec5\u53ef\u4ee5\u662fiframe\u95f4\u5e7f\u64ad\u901a\u4fe1\uff0c\u5404\u4e2a\u6d4f\u89c8\u5668\u9009\u9879\u5361\u4e4b\u95f4\u901a\u4fe1\u4e5f\u662f\u53ef\u4ee5\u7684\uff0c\u8fd9\u91cc\u6211\u5c31\u4e0d\u91cd\u590d\u6f14\u793a\u4e86\uff0c\u80af\u5b9a\u662f\u652f\u6301\u7684\u3002<\/p>\n<h4>\u901a\u9053\u540d\u5b57\u83b7\u53d6\u4e0e\u5173\u95ed<\/h4>\n<p>\u901a\u9053\u540d\u5b57\u53ef\u4ee5\u4f7f\u7528name\u5c5e\u6027\u503c\u83b7\u53d6\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>console.log(bc.name);\r\n\/\/ \u8f93\u51fa\u7ed3\u679c\u662f\uff1azhangxinxu<\/pre>\n<p>\u5982\u679c\u60f3\u8981\u5173\u95ed\u901a\u9053\uff0c\u53ef\u4ee5\u4f7f\u7528<code>close()<\/code>\u65b9\u6cd5\u3002<\/p>\n<pre>bc.close();<\/pre>\n<p>\u901a\u9053\u4e00\u65e6\u5173\u95ed\uff0c\u4f60\u518d\u4f7f\u7528<code>postMessage()<\/code>\u53d1\u9001\u6570\u636e\u5c31\u4f1a\u62a5\u9519\uff0c\u6216\u8005\u4f7f\u7528<code>message<\/code>\u4e8b\u4ef6\u63a5\u6536\u6570\u636e\u4e5f\u4e0d\u4f1a\u6210\u529f\uff0c\u53cd\u800c\u4f1a\u89e6\u53d1<code>messageerror<\/code>\u4e8b\u4ef6\u3002<\/p>\n<p>\u5728\u4e0a\u9762\u7684demo\u4e2d\uff0c\u901a\u4fe1\u8baf\u606f\u7684\u63a5\u53d7\u7528\u7684\u662f<code>onmessage<\/code>\u65b9\u6cd5\uff0c\u5b9e\u9645\u4e0a\uff0c\u4f7f\u7528addEventListener\u53bb\u7ed1\u5b9a\u4e8b\u4ef6\u4e5f\u662f\u53ef\u4ee5\u7684\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>bc.addEventListener(\"message\", (event) =&gt; {\r\n  console.log(event.data);\r\n})<\/pre>\n<h4>\u4e94\u3001\u7ed3\u8bed\u70b9\u70b9\u70b9<\/h4>\n<p>\u8bf4\u5565\u7ed3\u8bed\uff0c\u60f3\u4e0d\u5230\u5565\uff0c\u5c0f\u670b\u53cb\u653e\u5bd2\u5047\u4e86\uff0c\u65f6\u95f4\u8fc7\u5f97\u597d\u5feb\uff0c\u8981\u8fc7\u5e74\u4e86\uff0c\u660e\u5e7440\u4e86\u3002<\/p>\n<p>\u54e6\uff0c\u5bf9\u4e86\uff0c\u5e74\u7ec8\u603b\u7ed3\u5fd8\u8bb0\u5199\u4e86\u3002<\/p>\n<p>\u5e74\u524d\u62bd\u65f6\u95f4\u5199\u4e00\u4e0b\u5427\uff0c\u597d\u597d\u60f3\u60f3\u600e\u4e48\u5199\u3002<\/p>\n<p>\u884c\u5427\uff0c\u5c31\u8fd9\u4e9b\u5427\uff0c\u8868\u8fbe\u6b32\u4e0d\u662f\u5e74\u8f7b\u7684\u65f6\u5019\u4e86\u3002<\/p>\n<p>\u611f\u8c22\u9605\u8bfb\uff0c\u5c24\u5176\u8fd9\u4e48\u591a\u5e74\u8fd8\u5728\u5173\u6ce8\u6211\u7684\u5c0f\u4f19\u4f34\u4eec\u3002<\/p>\n<p>\u5982\u679c\u53ef\u4ee5\uff0c\u5e0c\u671b\u53ef\u4ee5\u987a\u624b<button onclick=\"shareWeixin.click()\" class=\"entry-share-btn\">\u8f6c\u53d1<\/button>\u4e0b\uff0c\u6bd4\u5fc3\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/be-heart.jpg\" width=\"120\" height=\"190\" alt=\"\u6bd4\u5fc3\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11507\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=11507<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202501\/Broadcast-Channel-cover.jpg\" width=\"160\" height=\"101\" alt=\"Broadcast-Channel\u5c01\u9762\u56fe\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>\u6d4f\u89c8\u5668\u652f\u6301\u4e86\u4e00\u79cd\u5168\u65b0\u7684\u5e7f\u64ad\u5f0f\u7684\u8de8\u9875\u9762\u901a\u4fe1Broadcast Channel\uff0c\u6b64API\u770b\u8d77\u6765\u633a\u590d\u6742\uff0c\u5b9e\u9645\u4f7f\u7528\u4e0b\u6765\uff0c\u7b80\u5355\u5f97\u8d85\u4e4e\u60f3\u8c61\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284],"tags":[215,2029,532,688,689,1144,685],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/11507"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=11507"}],"version-history":[{"count":4,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/11507\/revisions"}],"predecessor-version":[{"id":11541,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/11507\/revisions\/11541"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=11507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=11507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=11507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}