nodejs_exercise

练习用nodejs写API和数据库交互

卡住的地方

node:_http_outgoing:573 throw new ERR_HTTP_HEADERS_SENT('set'); ^

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client at new NodeError (node:internal/errors:371:5) at ServerResponse.setHeader (node:_http_outgoing:573:11) at /Users/pan/Desktop/pumyung/国科大春季/实用生物信息/002HW/scripts/nodejs_exercise/scripts2/server.js:24:13 at FSReqCallback.readFileAfterClose [as oncomplete] (node:internal/fs/read_file_context:68:3) { code: 'ERR_HTTP_HEADERS_SENT' }