Question

我正在尝试使用＆＃34; soundcloud.com＆＃34;创建一个搜索用户gmail电子邮件的脚本。现在和newer_than：1天。然后我尝试将这些soundcloud网址添加到带有appendRow的电子表格中。我使用正则表达式来阻止网址以及＆＃39; soundcloud.com＆＃39;之后的任何内容。直到空白。我还使用函数来解析html。

我一直在＆＃34;我们很抱歉，发生了服务器错误＆＃34;运行脚本几秒钟后。这是代码：

function getTextFromHtml(body) {
  return getTextFromNode(Xml.parse(body, true).getElement());
}


function getTextFromNode(x) {
  switch(x.toString()) {
    case 'XmlText': return x.toXmlString();
    case 'XmlElement': return x.getNodes().map(getTextFromNode).join('');
    default: return '';
  }
}

function searchy() {
  var search = GmailApp.search('"soundcloud.com" newer_than:1d');
  for (var i=0; i < search.length; i++) {
    var msgs = search[i].getMessages();
    for (var j=0; j < msgs.length; j++) {
      var body = msgs[j].getPlainBody();
      var printthis = getTextFromHtml(body);
      var regex = /https?:\/\/soundcloud\.com\/\S*/gi;
      var scURL = regex.exec(printthis);
      var sheet = SpreadsheetApp.getActiveSheet();
      sheet.appendRow(scURL);
      }
    }
  }

这是执行记录：

[15-03-05 11:16:59:009 CST] Starting execution
[15-03-05 11:16:59:539 CST] GmailApp.search(["soundcloud.com" newer_than:1d]) [0.512 seconds]
[15-03-05 11:16:59:724 CST] GmailThread.getMessages() [0.184 seconds]
[15-03-05 11:16:59:929 CST] GmailMessage.getPlainBody() [0.205 seconds]
[15-03-05 11:16:59:971 CST] Xml.parse([https://soundcloud.com/josef-salvat/josef-salvat-every-night-1

-- 
(EMAIL SIGNATURE)
, true]) [0.042 seconds]
[15-03-05 11:16:59:973 CST] XmlDocument.getElement() [0 seconds]
[15-03-05 11:16:59:977 CST] XmlText.toXmlString() [0 seconds]
[15-03-05 11:16:59:977 CST] SpreadsheetApp.getActiveSheet() [0 seconds]
[15-03-05 11:17:00:100 CST] Sheet.appendRow([[https://soundcloud.com/josef-salvat/josef-salvat-every-night-1]]) [0.122 seconds]
[15-03-05 11:17:00:280 CST] GmailThread.getMessages() [0.179 seconds]
[15-03-05 11:17:04:388 CST] GmailMessage.getPlainBody() [4.108 seconds]
[15-03-05 11:17:04:428 CST] Xml.parse([https://soundcloud.com/denniskruissen/de-hofnar-dennis-kruissen-ayo-technology-bootleg

-- 
(EMAIL SIGNATURE)
, true]) [0.039 seconds]
[15-03-05 11:17:04:429 CST] XmlDocument.getElement() [0 seconds]
[15-03-05 11:17:04:431 CST] XmlText.toXmlString() [0 seconds]
[15-03-05 11:17:04:431 CST] SpreadsheetApp.getActiveSheet() [0 seconds]
[15-03-05 11:17:04:432 CST] Sheet.appendRow([null]) [0 seconds]
[15-03-05 11:17:04:434 CST] Execution failed: We're sorry, a server error occurred. Please wait a bit and try again. (line 24, file "Copy of search") [5.406 seconds total runtime]

任何人都可以帮忙吗？另外，有更好的方法吗？我是新手。

谢谢！尼尔

EDIT 我想到了。不得不把g放在正则表达式函数中。请参阅Henrique的回答：Google Apps Script Regex exec() returning null非常感谢Vincent的帮助！

Answer 1

似乎regex.exec（）返回null，因为没有匹配。

修复函数以防止错误的一种方法：

function searchy() {
  var search = GmailApp.search('"soundcloud.com" newer_than:1d');
  for (var i=0; i < search.length; i++) {
    var msgs = search[i].getMessages();
    for (var j=0; j < msgs.length; j++) {
      var body = msgs[j].getPlainBody();
      var printthis = getTextFromHtml(body);
      var regex = /https?:\/\/soundcloud\.com\/\S*/gi;
      var scURL = regex.exec(printthis);

      if (scURL !== null) {
          var sheet = SpreadsheetApp.getActiveSheet();
          sheet.appendRow(scURL);
          }
      }
    }
  }

来源：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec

第二次拨打Gmail后Google Script会返回null

1 个答案: