{"id":3730,"date":"2024-11-10T10:22:31","date_gmt":"2024-11-10T02:22:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3730\/"},"modified":"2024-11-10T10:22:31","modified_gmt":"2024-11-10T02:22:31","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88-try-catch-%e6%97%a0%e6%b3%95%e6%8d%95%e8%8e%b7-javascript-%e4%b8%ad%e7%9a%84-websocket-%e8%bf%9e%e6%8e%a5%e5%a4%b1%e8%b4%a5%e5%bc%82%e5%b8%b8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3730\/","title":{"rendered":"\u4e3a\u4ec0\u4e48 try-catch \u65e0\u6cd5\u6355\u83b7 JavaScript \u4e2d\u7684 WebSocket \u8fde\u63a5\u5931\u8d25\u5f02\u5e38\uff1f"},"content":{"rendered":"

\"\u4e3a\u4ec0\u4e48<\/p>\n

try-catch \u65e0\u6cd5\u6355\u83b7 WebSocket \u8fde\u63a5\u5931\u8d25\u5f02\u5e38<\/strong><\/p>\n

\u5728 JavaScript \u4e2d\uff0ctry-catch \u4ee3\u7801\u5757\u7528\u4e8e\u5904\u7406\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u4e2d\u5f15\u53d1\u7684\u5f02\u5e38\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e WebSocket \u8fde\u63a5\u5931\u8d25\u7684\u60c5\u51b5\uff0ctry-catch \u5374\u5931\u6548\u4e86\u3002<\/p>\n

\u539f\u56e0<\/strong><\/p>\n

WebSocket \u8fde\u63a5\u5931\u8d25\u662f\u7531\u6d4f\u89c8\u5668\u6216\u5e95\u5c42\u7f51\u7edc\u901a\u4fe1\u673a\u5236\u5f15\u53d1\u7684\uff0c\u800c\u4e0d\u662f\u7531 JavaScript \u4ee3\u7801\u81ea\u8eab\u9020\u6210\u7684\u3002\u56e0\u6b64\uff0c\u8fd9\u4e9b\u5f02\u5e38\u4e0d\u4f1a\u5728 JavaScript \u4ee3\u7801\u5c42\u9762\u629b\u51fa\uff0c\u4e5f\u5c31\u65e0\u6cd5\u88ab try-catch \u6355\u83b7\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n

    \n
  1. \u4f7f\u7528 onerror \u4e8b\u4ef6\u76d1\u542c\u5668\uff1a<\/strong>WebSocket \u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e2a onerror \u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u53ef\u4ee5\u7528\u6765\u76d1\u542c\u8fde\u63a5\u5931\u8d25\u4e8b\u4ef6\u3002\u5f53\u8fde\u63a5\u5931\u8d25\u65f6\uff0c\u8be5\u76d1\u542c\u5668\u5c06\u88ab\u8c03\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u7528\u6765\u6355\u83b7\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n
  2. \u8bbe\u7f6e WebSocket \u65e5\u5fd7\u7ea7\u522b\uff1a<\/strong>\u5728\u4e00\u4e9b\u6d4f\u89c8\u5668\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e WebSocket \u7684\u65e5\u5fd7\u7ea7\u522b\u6765\u9690\u85cf\u8fde\u63a5\u5931\u8d25\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5728 Chrome \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 console.log() \u51fd\u6570\u6765\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\u4e3a log \u6216 info\uff0c\u4ee5\u9690\u85cf\u8fd9\u4e9b\u9519\u8bef\u3002<\/li>\n
  3. \u4f7f\u7528 Promise\uff1a<\/strong>WebSocket \u89c4\u8303\u63d0\u4f9b\u4e86 WebSocket.open \u65b9\u6cd5\uff0c\u5b83\u8fd4\u56de\u4e00\u4e2a Promise\u3002\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u8be5 Promise \u5c06\u89e3\u6790\u4e3a WebSocket \u5bf9\u8c61\uff1b\u5982\u679c\u8fde\u63a5\u5931\u8d25\uff0c\u5219 Promise \u5c06\u88ab\u62d2\u7edd\uff0c\u5e76\u4e14\u53ef\u4ee5\u7528\u6765\u6355\u83b7\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n<\/ol>\n

    \u4ee5\u4e0a\u5c31\u662f try-catch \u65e0\u6cd5\u6355\u83b7 JavaScript \u4e2d\u7684 WebSocket \u8fde\u63a5\u5931\u8d25\u5f02\u5e38\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

    try-catch \u65e0\u6cd5\u6355\u83b7 WebSocket \u8fde\u63a5\u5931\u8d25\u5f02\u5e38 \u5728 JavaScript \u4e2d\uff0ctry-catch \u4ee3\u7801\u5757\u7528\u4e8e\u5904\u7406\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u4e2d\u5f15\u53d1\u7684\u5f02\u5e38\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e WebSocket \u8fde\u63a5\u5931\u8d25\u7684\u60c5\u51b5\uff0ctry-catch \u5374\u5931\u6548\u4e86\u3002 \u539f\u56e0 WebSocket \u8fde\u63a5\u5931\u8d25\u662f\u7531\u6d4f\u89c8\u5668\u6216\u5e95\u5c42\u7f51\u7edc\u901a\u4fe1\u673a\u5236\u5f15\u53d1\u7684\uff0c\u800c\u4e0d\u662f\u7531 JavaScript \u4ee3\u7801\u81ea\u8eab\u9020\u6210\u7684\u3002\u56e0\u6b64\uff0c\u8fd9\u4e9b\u5f02\u5e38\u4e0d\u4f1a\u5728 JavaScript \u4ee3\u7801\u5c42\u9762\u629b\u51fa\uff0c\u4e5f\u5c31\u65e0\u6cd5\u88ab try-catch \u6355\u83b7\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848 \u4f7f\u7528 onerror \u4e8b\u4ef6\u76d1\u542c\u5668\uff1aWebSocket \u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e2a onerror \u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u53ef\u4ee5\u7528\u6765\u76d1\u542c\u8fde\u63a5\u5931\u8d25\u4e8b\u4ef6\u3002\u5f53\u8fde\u63a5\u5931\u8d25\u65f6\uff0c\u8be5\u76d1\u542c\u5668\u5c06\u88ab\u8c03\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u7528\u6765\u6355\u83b7\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\u3002 \u8bbe\u7f6e WebSocket \u65e5\u5fd7\u7ea7\u522b\uff1a\u5728\u4e00\u4e9b\u6d4f\u89c8\u5668\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e WebSocket \u7684\u65e5\u5fd7\u7ea7\u522b\u6765\u9690\u85cf\u8fde\u63a5\u5931\u8d25\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5728 Chrome \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 console.log() \u51fd\u6570\u6765\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\u4e3a log \u6216 info\uff0c\u4ee5\u9690\u85cf\u8fd9\u4e9b\u9519\u8bef\u3002 \u4f7f\u7528 Promise\uff1aWebSocket \u89c4\u8303\u63d0\u4f9b\u4e86 WebSocket.open \u65b9\u6cd5\uff0c\u5b83\u8fd4\u56de\u4e00\u4e2a Promise\u3002\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u8be5 Promise \u5c06\u89e3\u6790\u4e3a WebSocket \u5bf9\u8c61\uff1b\u5982\u679c\u8fde\u63a5\u5931\u8d25\uff0c\u5219 Promise \u5c06\u88ab\u62d2\u7edd\uff0c\u5e76\u4e14\u53ef\u4ee5\u7528\u6765\u6355\u83b7\u9519\u8bef\u4fe1\u606f\u3002 \u4ee5\u4e0a\u5c31\u662f try-catch \u65e0\u6cd5\u6355\u83b7 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3730","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=3730"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3730\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}