{"id":179894,"date":"2024-11-09T05:41:18","date_gmt":"2024-11-08T21:41:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179894\/"},"modified":"2024-11-09T05:41:18","modified_gmt":"2024-11-08T21:41:18","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e7%b6%b2%e9%a0%81%e4%b8%ad%e7%8d%b2%e5%8f%96%e6%9c%80%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%a1%e6%81%af%ef%bc%9f-%e7%b6%b2%e9%a0%81%e4%b8%8d%e5%88%b7%e6%96%b0%e7%8d%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179894\/","title":{"rendered":"\u5982\u4f55\u5728\u7db2\u9801\u4e2d\u7372\u53d6\u6700\u65b0\u6578\u64da\u5eab\u4fe1\u606f\uff1f (\u7db2\u9801\u4e0d\u5237\u65b0\u7372\u53d6\u6578\u64da\u5eab)"},"content":{"rendered":"

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\u4f7f\u7528AJAX\u6280\u8853<\/h2>\n

AJAX\uff08Asynchronous JavaScript and XML\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u5275\u5efa\u5feb\u901f\u548c\u52d5\u614b\u7db2\u9801\u61c9\u7528\u7684\u6280\u8853\u3002\u5b83\u5141\u8a31\u7db2\u9801\u5728\u4e0d\u91cd\u65b0\u52a0\u8f09\u6574\u500b\u9801\u9762\u7684\u60c5\u6cc1\u4e0b\uff0c\u8207\u4f3a\u670d\u5668\u9032\u884c\u7570\u6b65\u901a\u4fe1\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u53ef\u4ee5\u5728\u9801\u9762\u4e0a\u9032\u884c\u64cd\u4f5c\uff0c\u800c\u4e0d\u6703\u4e2d\u65b7\u4ed6\u5011\u7684\u9ad4\u9a57\u3002<\/p>\n

AJAX\u7684\u57fa\u672c\u4f7f\u7528<\/h3>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684AJAX\u8acb\u6c42\u793a\u4f8b\uff0c\u8a72\u8acb\u6c42\u5f9e\u4f3a\u670d\u5668\u7372\u53d6\u6700\u65b0\u7684\u6578\u64da\u5eab\u4fe1\u606f\uff1a<\/p>\n

\nfunction fetchData() {\n    var xhr = new XMLHttpRequest();\n    xhr.open(\"GET\", \"https:\/\/yourapi.com\/getLatestData\", true);\n    xhr.onreadystatechange = function () {\n        if (xhr.readyState == 4 && xhr.status == 200) {\n            var data = JSON.parse(xhr.responseText);\n            document.getElementById(\"dataContainer\").innerHTML = data.content;\n        }\n    };\n    xhr.send();\n}\n\n\/\/ \u6bcf5\u79d2\u81ea\u52d5\u7372\u53d6\u6700\u65b0\u6578\u64da\nsetInterval(fetchData, 5000);\n<\/code><\/pre>\n
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\u4f7f\u7528WebSocket\u6280\u8853<\/h2>\n
WebSocket\u662f\u4e00\u7a2e\u5728\u55ae\u500bTCP\u9023\u63a5\u4e0a\u9032\u884c\u5168\u96d9\u5de5\u901a\u4fe1\u7684\u5354\u8b70\u3002\u5b83\u7279\u5225\u9069\u5408\u9700\u8981\u5be6\u6642\u6578\u64da\u66f4\u65b0\u7684\u61c9\u7528\uff0c\u5982\u804a\u5929\u61c9\u7528\u6216\u5373\u6642\u901a\u77e5\u7cfb\u7d71\u3002<\/p>\n
WebSocket\u7684\u57fa\u672c\u4f7f\u7528<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528WebSocket\u7684\u793a\u4f8b\uff1a<\/p>\n
\nvar socket = new WebSocket(\"wss:\/\/yourapi.com\/socket\");\n\nsocket.onmessage = function(event) {\n    var data = JSON.parse(event.data);\n    document.getElementById(\"dataContainer\").innerHTML = data.content;\n};\n\nsocket.onopen = function() {\n    console.log(\"WebSocket connection established.\");\n};\n\nsocket.onclose = function() {\n    console.log(\"WebSocket connection closed.\");\n};\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500bWebSocket\u9023\u63a5\uff0c\u4e26\u5728\u63a5\u6536\u5230\u6d88\u606f\u6642\u66f4\u65b0\u9801\u9762\u5167\u5bb9\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\u5728\u65bc\u5b83\u80fd\u5920\u5be6\u6642\u63a5\u6536\u6578\u64da\uff0c\u800c\u4e0d\u9700\u8981\u5b9a\u671f\u767c\u9001\u8acb\u6c42\u3002<\/p>\n
\u4f7f\u7528Server-Sent Events (SSE)<\/h2>\n
Server-Sent Events\uff08SSE\uff09\u662f\u4e00\u7a2e\u8b93\u4f3a\u670d\u5668\u80fd\u5920\u4e3b\u52d5\u5411\u5ba2\u6236\u7aef\u63a8\u9001\u6578\u64da\u7684\u6280\u8853\u3002\u9019\u5c0d\u65bc\u9700\u8981\u6301\u7e8c\u66f4\u65b0\u7684\u61c9\u7528\u975e\u5e38\u6709\u7528\u3002<\/p>\n
SSE\u7684\u57fa\u672c\u4f7f\u7528<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528SSE\u7684\u793a\u4f8b\uff1a<\/p>\n
\nvar eventSource = new EventSource(\"https:\/\/yourapi.com\/events\");\n\neventSource.onmessage = function(event) {\n    var data = JSON.parse(event.data);\n    document.getElementById(\"dataContainer\").innerHTML = data.content;\n};\n\neventSource.onerror = function() {\n    console.log(\"Error occurred while receiving events.\");\n};\n<\/code><\/pre>\n
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\u7d50\u8ad6<\/h2>\n
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