我试图让登录在调度程序上工作,但出现 module.exports.report.logon is not a function
错误。这是代码:
const cron = require('node-cron');
const cms = require("g4js-cognos").Cms;
module.exports.report = new cms(url, namespace, usr, psw);
let task = cron.schedule('*/1 * * * *', function() {
logonToCognos();
}, true);
task.start();
function logonToCognos() {
module.exports.report.logon().then((response) => { // THE ERROR
console.log(" LOGGED on, status: " + response.statusCode);
}).catch((error) => {
console.log(" Logon on fail: " + error);
});
}
当我不使用调度程序并且 module.exports.report
位于函数之外时,一切正常:
const cms = require("g4js-cognos").Cms;
module.exports.report = new cms(url, namespace, usr, psw);
module.exports.report.logon().then((response) => {
console.log(" LOGGED on, status: " + response.statusCode);
}).catch((error) => {
console.log(" Logon on fail: " + error);
});
另外,如果我不使用 module.exports,它工作正常(但我必须使用导出,因为我在另一个模块中需要它):
const cms = require("g4js-cognos").Cms;
const report = new cms(url, namespace, usr, psw);
let task = cron.schedule('*/1 * * * *', function() {
logonToCognos();
}, true);
task.start();
function logonToCognos() {
report.logon().then((response) => { // NO ERROR
console.log(" LOGGED on, status: " + response.statusCode);
}).catch((error) => {
console.log(" Logon on fail: " + error);
});
}
有什么想法吗?为什么 module.exports 的工作方式如此不同?谢谢。
最佳答案
试试这个:
const cron = require('node-cron');
const cms = require("g4js-cognos").Cms;
// init your class
const report = new cms(url, namespace, usr, psw);
// define what to do after logon
report.logon().then((response) => {
console.log(" LOGGED on, status: " + response.statusCode);
}).catch((error) => {
console.log(" Logon on fail: " + error);
});
// define cron job
const task = cron.schedule('*/1 * * * *', function() {
report.logon();
}, true);
// start cron job
task.start();
// finally export your class
module.exports.report = report;
也许这可以帮助你module.exports
关于javascript - module.exports.report.logon 不是一个函数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40845499/