error-handling - 未处理的拒绝错误 : Failed to GET url: https://google. com/alerts

Question

我正在使用 node-horseman访问 Google 快讯并执行应用程序所需的操作，但我经常看到此错误，但我找不到有用的解决方案来捕获此错误并中断操作并显示错误消息。

Unhandled rejection Error: Failed to GET url: https://google.com/alerts
    at checkStatus (/home/gabriel/Sites/co-report-stable/api/node_modules/node-horseman/lib/actions.js:78:16)
    at PassThroughHandlerContext.finallyHandler (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/finally.js:56:23)
    at PassThroughHandlerContext.tryCatcher (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/promise.js:510:31)
    at Promise._settlePromise (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/promise.js:567:18)
    at Promise._settlePromise0 (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/promise.js:612:10)
    at Promise._settlePromises (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/promise.js:691:18)
    at Promise._fulfill (/home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/promise.js:636:18)
    at /home/gabriel/Sites/co-report-stable/api/node_modules/bluebird/js/release/nodeback.js:42:21
    at /home/gabriel/Sites/co-report-stable/api/node_modules/node-phantom-simple/node-phantom-simple.js:60:18
    at IncomingMessage.<anonymous> (/home/gabriel/Sites/co-report-stable/api/node_modules/node-phantom-simple/node-phantom-simple.js:645:9)
    at emitNone (events.js:91:20)
    at IncomingMessage.emit (events.js:185:7)
    at endReadableNT (_stream_readable.js:975:12)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)

有谁知道如何捕获它？我试过 .on('error')并返回它，但没有任何帮助。

Answer 1

要捕获它就足够了:

.on('resourceError', function(err) {
    console.log(err.message)
})

之前 .open()
如果你像我一样使用 Promise，你可以 return reject(new Error(err.message))