{"id":4748,"date":"2023-01-04T18:05:17","date_gmt":"2023-01-04T10:05:17","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4748"},"modified":"2023-01-04T18:05:17","modified_gmt":"2023-01-04T10:05:17","slug":"%e8%a7%a3%e6%b1%bareact-jserrorcanonlyupdateamountedormountingcomponent%e7%9a%84%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e8%a7%a3%e6%b1%bareact-jserrorcanonlyupdateamountedormountingcomponent%e7%9a%84%e6%8a%80%e5%b7%a7\/","title":{"rendered":"\u89e3\u6c7aReact.js&#8221;Error:Canonlyupdateamountedormountingcomponent&#8221;\u7684\u6280\u5de7"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React.js, Error, Can only update a mounted or mounting component\"><\/p>\n<h1>\u89e3\u6c7a React.js &#8220;Error: Can only update a mounted or mounting component&#8221; \u932f\u8aa4<\/h1>\n<p>React.js \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u69cb\u5efa\u529f\u80fd\u5f37\u5927\u7684 Web \u61c9\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528 React.js \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u554f\u984c\uff0c\u5176\u4e2d\u4e00\u500b\u662f &#8220;Error: Can only update a mounted or mounting component&#8221; \u932f\u8aa4\u3002<\/p>\n<p>\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u662f\u56e0\u70ba React.js \u5c0d\u65bc\u66f4\u65b0\u7d44\u4ef6\u7684\u65b9\u5f0f\u6709\u4e00\u5b9a\u7684\u8981\u6c42\uff0c\u5982\u679c\u4f60\u5617\u8a66\u66f4\u65b0\u4e00\u500b\u672a\u5b89\u88dd\u6216\u6b63\u5728\u5b89\u88dd\u7684\u7d44\u4ef6\uff0c\u5c31\u6703\u51fa\u73fe\u9019\u500b\u932f\u8aa4\u3002<\/p>\n<h2>\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n<p>\u8981\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u4f60\u9700\u8981\u78ba\u4fdd\u4f60\u53ea\u5728\u5b89\u88dd\u5b8c\u6210\u5f8c\u624d\u66f4\u65b0\u7d44\u4ef6\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>componentDidMount()<\/code> \u65b9\u6cd5\u4f86\u78ba\u4fdd\u7d44\u4ef6\u5df2\u7d93\u5b89\u88dd\u5b8c\u6210\uff0c\u7136\u5f8c\u518d\u66f4\u65b0\u7d44\u4ef6\u3002<\/p>\n<pre class=\"brush: javascript\">\ncomponentDidMount() {\n  \/\/ Update the component\n}\n<\/pre>\n<p>\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>componentWillUnmount()<\/code> \u65b9\u6cd5\u4f86\u78ba\u4fdd\u7d44\u4ef6\u5728\u66f4\u65b0\u4e4b\u524d\u5df2\u7d93\u5b89\u88dd\u5b8c\u6210\u3002<\/p>\n<pre class=\"brush: javascript\">\ncomponentWillUnmount() {\n  \/\/ Update the component\n}\n<\/pre>\n<p>\u53e6\u5916\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>setState()<\/code> \u65b9\u6cd5\u4f86\u66f4\u65b0\u7d44\u4ef6\uff0c\u4f46\u662f\u4f60\u9700\u8981\u78ba\u4fdd\u4f60\u5728\u66f4\u65b0\u4e4b\u524d\u5df2\u7d93\u5b89\u88dd\u5b8c\u6210\u3002<\/p>\n<pre class=\"brush: javascript\">\nthis.setState({\n  \/\/ Update the component\n});\n<\/pre>\n<p>\u6700\u5f8c\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>forceUpdate()<\/code> \u65b9\u6cd5\u4f86\u5f37\u5236\u66f4\u65b0\u7d44\u4ef6\uff0c\u4f46\u662f\u4f60\u9700\u8981\u78ba\u4fdd\u4f60\u5728\u66f4\u65b0\u4e4b\u524d\u5df2\u7d93\u5b89\u88dd\u5b8c\u6210\u3002<\/p>\n<pre class=\"brush: javascript\">\nthis.forceUpdate();\n<\/pre>\n<p>\u9019\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u5e6b\u52a9\u4f60\u89e3\u6c7a React.js &#8220;Error: Can only update a mounted or mounting component&#8221; \u932f\u8aa4\uff0c\u8b93\u4f60\u53ef\u4ee5\u5b89\u5168\u5730\u66f4\u65b0\u7d44\u4ef6\u3002<\/p>\n<p><!--more--><\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u8a0e\u8ad6\u4e86 React.js &#8220;Error: Can only update a mounted or mounting component&#8221; \u932f\u8aa4\uff0c\u4ee5\u53ca\u5982\u4f55\u89e3\u6c7a\u9019\u500b\u554f\u984c\u7684\u65b9\u6cd5\u3002\u6211\u5011\u5efa\u8b70\u4f60\u4f7f\u7528 <code>componentDidMount()<\/code>\uff0c<code>componentWillUnmount()<\/code>\uff0c<code>setState()<\/code> \u548c <code>forceUpdate()<\/code> \u65b9\u6cd5\u4f86\u78ba\u4fdd\u4f60\u5728\u66f4\u65b0\u7d44\u4ef6\u4e4b\u524d\u5df2\u7d93\u5b89\u88dd\u5b8c\u6210\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u89e3\u6c7aReact.js\u4e2d\u5e38\u898b\u7684&#8221;Error:Canonlyupdateamountedormountingcomponent&#8221;\u932f\u8aa4\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u5feb\u901f\u89e3\u6c7a\u554f\u984c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[184,183],"tags":[182,181],"class_list":["post-4748","post","type-post","status-publish","format-standard","hentry","category-react","category-react-js","tag-react","tag-react-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1eA","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=4748"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4748\/revisions"}],"predecessor-version":[{"id":4749,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4748\/revisions\/4749"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}