{"id":6166,"date":"2023-01-07T11:15:22","date_gmt":"2023-01-07T03:15:22","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6166"},"modified":"2023-01-07T11:15:22","modified_gmt":"2023-01-07T03:15:22","slug":"%e4%ba%86%e8%a7%a3%e5%a6%82%e4%bd%95%e5%9c%a8node-js%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%ad%90%e8%bf%9b%e7%a8%8bchildprocess","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/node-js\/%e4%ba%86%e8%a7%a3%e5%a6%82%e4%bd%95%e5%9c%a8node-js%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%ad%90%e8%bf%9b%e7%a8%8bchildprocess\/","title":{"rendered":"\u4e86\u89e3\u5982\u4f55\u5728Node.js\u4e2d\u4f7f\u7528\u5b50\u8fdb\u7a0b(childprocess)"},"content":{"rendered":"

<\/p>\n

\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528\u5b50\u8fdb\u7a0b(child process)\uff1f<\/h1>\n

Node.js \u662f\u4e00\u500b\u5ee3\u53d7\u6b61\u8fce\u7684 JavaScript \u74b0\u5883\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u4f7f\u7528 JavaScript \u4f86\u69cb\u5efa\u53ef\u64f4\u5c55\u7684\u7db2\u7d61\u61c9\u7528\u7a0b\u5e8f\u3002Node.js \u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u5b50\u9032\u7a0b API\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728 Node.js \u4e2d\u4f7f\u7528\u5b50\u9032\u7a0b\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u5b50\u9032\u7a0b\uff1f<\/h2>\n

\u5b50\u9032\u7a0b\u662f\u4e00\u500b\u7368\u7acb\u7684\u7a0b\u5e8f\uff0c\u5b83\u53ef\u4ee5\u5728\u80cc\u666f\u57f7\u884c\uff0c\u800c\u4e0d\u6703\u5f71\u97ff\u4e3b\u7a0b\u5e8f\u7684\u57f7\u884c\u3002\u5b50\u9032\u7a0b\u53ef\u4ee5\u7528\u65bc\u57f7\u884c\u8017\u6642\u7684\u4efb\u52d9\uff0c\u800c\u4e0d\u6703\u5f71\u97ff\u4e3b\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n

Node.js \u4e2d\u7684\u5b50\u9032\u7a0b<\/h2>\n

Node.js \u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u5b50\u9032\u7a0b API\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728 Node.js \u4e2d\u4f7f\u7528\u5b50\u9032\u7a0b\u3002Node.js \u7684\u5b50\u9032\u7a0b API \u53ef\u4ee5\u8b93\u958b\u767c\u8005\u57f7\u884c\u5916\u90e8\u7a0b\u5e8f\uff0c\u4e26\u4e14\u53ef\u4ee5\u63a7\u5236\u5b50\u9032\u7a0b\u7684\u8f38\u5165\u548c\u8f38\u51fa\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 Node.js \u4e2d\u7684\u5b50\u9032\u7a0b\uff1f<\/h2>\n

Node.js \u4e2d\u7684\u5b50\u9032\u7a0b API \u53ef\u4ee5\u8b93\u958b\u767c\u8005\u57f7\u884c\u5916\u90e8\u7a0b\u5e8f\uff0c\u4e26\u4e14\u53ef\u4ee5\u63a7\u5236\u5b50\u9032\u7a0b\u7684\u8f38\u5165\u548c\u8f38\u51fa\u3002\u8981\u4f7f\u7528 Node.js \u4e2d\u7684\u5b50\u9032\u7a0b\uff0c\u958b\u767c\u8005\u9700\u8981\u4f7f\u7528 child_process<\/code> \u6a21\u7d44\u3002<\/p>\n

\u4e0b\u9762\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 Node.js \u4e2d\u7684\u5b50\u9032\u7a0b\uff1a<\/p>\n

\nconst { spawn } = require('child_process');\nconst ls = spawn('ls', ['-lh', '\/usr']);\n\nls.stdout.on('data', (data) => {\n  console.log(`stdout: {data}`);\n});\n\nls.stderr.on('data', (data) => {\n  console.log(`stderr:<\/span>{data}`);\n});\n\nls.on('close', (code) => {\n  console.log(`\u5b50\u9032\u7a0b\u9000\u51fa\u78bc\uff1a${code}`);\n});\n<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 spawn()<\/code> \u65b9\u6cd5\u4f86\u555f\u52d5\u4e00\u500b\u5b50\u9032\u7a0b\uff0c\u4e26\u4e14\u50b3\u5165 ls<\/code> \u547d\u4ee4\u548c\u53c3\u6578 -lh<\/code> \u548c \/usr<\/code> \u3002\u7136\u5f8c\uff0c\u6211\u5011\u4f7f\u7528 stdout.on()<\/code> \u548c stderr.on()<\/code> \u65b9\u6cd5\u4f86\u6355\u7372\u5b50\u9032\u7a0b\u7684\u8f38\u51fa\uff0c\u4e26\u4e14\u4f7f\u7528 on()<\/code> \u65b9\u6cd5\u4f86\u6355\u7372\u5b50\u9032\u7a0b\u7684\u9000\u51fa\u78bc\u3002<\/p>\n
Node.js \u4e2d\u7684\u5b50\u9032\u7a0b API \u975e\u5e38\u5f37\u5927\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u57f7\u884c\u5916\u90e8\u7a0b\u5e8f\uff0c\u4e26\u4e14\u53ef\u4ee5\u63a7\u5236\u5b50\u9032\u7a0b\u7684\u8f38\u5165\u548c\u8f38\u51fa\u3002\u4f7f\u7528 Node.js \u4e2d\u7684\u5b50\u9032\u7a0b\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u52a0\u9748\u6d3b\u5730\u57f7\u884c\u8017\u6642\u7684\u4efb\u52d9\uff0c\u800c\u4e0d\u6703\u5f71\u97ff\u4e3b\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
Node.js \u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u5b50\u9032\u7a0b API\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728 Node.js \u4e2d\u4f7f\u7528\u5b50\u9032\u7a0b\u3002\u4f7f\u7528 Node.js \u4e2d\u7684\u5b50\u9032\u7a0b\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u52a0\u9748\u6d3b\u5730\u57f7\u884c\u8017\u6642\u7684\u4efb\u52d9\uff0c\u800c\u4e0d\u6703\u5f71\u97ff\u4e3b\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981:Node.js\u63d0\u4f9b\u4e86\u4e00\u500b\u5b50\u8fdb\u7a0b\u6a21\u584a\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728Node.js\u4e2d\u57f7\u884c\u5916\u90e8\u7a0b\u5e8f\uff0c\u4e26\u63a7\u5236\u5b83\u5011\u7684\u8f38\u5165\u548c\u8f38\u51fa\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u5728Node.js\u4e2d\u4f7f\u7528\u5b50\u8fdb\u7a0b\uff0c\u4ee5\u53ca\u5b83\u5011\u7684\u512a\u9ede\u548c\u7f3a\u9ede\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":[193,192],"tags":[191,190],"class_list":["post-6166","post","type-post","status-publish","format-standard","hentry","category-node","category-node-js","tag-node","tag-node-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1Bs","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6166","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=6166"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6166\/revisions"}],"predecessor-version":[{"id":6167,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6166\/revisions\/6167"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}