使用GM_xmlhttpRequest获取多个外部URL，将页面添加到链接吗？
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已解决，感谢Hellion的帮助！
这是代码：
// ==UserScript==
// @name Facebook Comment Moderation Links
// @description Appends story titles to Facebook Comment Moderation \"Visit Website\" links
// @include http*://developers.facebook.com/tools/*
// ==/UserScript==
var allLinks, thisLink, expr, pageTitle, myURL, myPage, pageContent, title;
// grabbing URLs
function fetchPage(myPage, targetLink) {
GM_xmlhttpRequest({
method: \'GET\',
url: myPage,
onload: function(response){
// get the HTML content of the page
pageContent = response.responseText;
// use regex to extract its h1 tag
pageTitle = pageContent.match(/<h1.*?>(.*?)<\\/h1>/g)[0];
// strip html tags from the result
pageTitle = pageTitle.replace(/<.*?>/g, \'\');
// append headline to Visit Website link
title = document.createElement(\'div\');
title.style.backgroundColor = \"yellow\";
title.style.color = \"#000\";
title.appendChild(document.createTextNode(pageTitle));
targetLink.parentNode.insertBefore(title, targetLink.nextSibling);
}
});
}
function processLinks() {
// define which links to look for
expr = \"//a[contains (string(), \'Visit Website\')]\";
allLinks = document.evaluate(
expr,
document,
null,
XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
null);
// loop through the links
for (var i = 0; i < allLinks.snapshotLength; i++) {
thisLink = allLinks.snapshotItem(i);
myURL = thisLink.getAttribute(\'href\');
// follow Visit Website link and attach corresponding headline
fetchPage(myURL, thisLink);
}
}
// get the ball rolling
processLinks();
var allLinks, thisLink, expr, pageTitle, myURL, pageContent, title;
// define which links to process
expr = \"//a[contains (string(), \'Visit Website\')]\";
allLinks = document.evaluate(
expr,
document,
null,
XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
null);
// cycle through links
for (var i = 0; i < allLinks.snapshotLength; i++) {
thisLink = allLinks.snapshotItem(i);
myURL = thisLink.getAttribute(\'href\');
GM_xmlhttpRequest({
method: \'GET\',
url: myURL,
onload: function(responseDetails){
pageTitle = responseDetails.status;
}
});
// append info to end of each link
title = document.createElement(\'div\');
title.style.backgroundColor = \"yellow\";
title.style.color = \"#000\";
title.appendChild(document.createTextNode(
\' [\' + pageTitle + \' - \' + thisLink.getAttribute(\'href\') + \']\'));
thisLink.parentNode.insertBefore(title, thisLink.nextSibling);
}
没有找到相关结果
已邀请:
2 个回复
炬卤遁蝎变
调用的异步特性的困扰。循环将触发并开始获取所有pageTitle值，但将立即继续运行，而不等待请求完成，因此pageTitle（顺便说一下，您没有在任何地方声明）为null用于textNode。 要纠正这种情况，需要采取的第一步是将currently2ѭ调用之后当前的所有内容移至定义的内部。然后，只有在检索到每个页面之后，您才能继续修改链接。 （我不确定也可能需要传递或重新获取值的其他问题。）薄响
// get the HTML content of the page pageContent = response.responseText; // use regex to extract its h1 tag pageTitle = pageContent.match(/<h1.*?>(.*?)<\\/h1>/g)[0]; // strip html tags from the result pageTitle = pageTitle.replace(/<.*?>/g, \'\');