答案 0 :(得分：0)
应该可以使用Blogger提供的全局评论Feed生成 -
http://blogname.blogspot.com/feeds/comments/default
相同的工作片段看起来像 -
<div id='stylify_random_comments'></div>
<script style='text/javascript'>
//<![CDATA[
var commentTitleOriginal, myLink, myDiv, myImage;
var main;
function getcomment(json) {
var s;
var entry = json.feed.entry[0];
var commentTitle = entry.title.$t;
commentTitleOriginal = commentTitle;
if (isNaN(titleLength) || titleLength == 0) {
commentTitle = '';
} else if (commentTitle.length > titleLength) commentTitle = commentTitle.substring(0, titleLength) + "...";
var commentUrl;
for (var k = 0; k < entry.link.length; k++) {
if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
var commentText = entry.link[k].title;
var commentUrl = entry.link[k].href;
}
if (entry.link[k].rel == 'alternate') {
commentUrl = entry.link[k].href;
break;
}
}
if (showThumbs == true) {
var thumbUrl = "";
try {
thumbUrl = entry.author["0"].gd$image.src;
if (imgDim == "80" || imgDim == "85" || imgDim == "90" || imgDim == "95" || imgDim == "100") thumbUrl = thumbUrl.replace("/s72-c/", "/s104-c/");
} catch (error) {
if ("content" in entry) s = entry.content.$t;
else s = "";
if (thumbUrl == "" && mediaThumbsOnly == false) {
a = s.indexOf("<img");
b = s.indexOf("src=\"", a);
c = s.indexOf("\"", b + 5);
d = s.substr(b + 5, c - b - 5);
if ((a != -1) && (b != -1) && (c != -1) && (d != "")) thumbUrl = d;
}
}
if (thumbUrl == "" && showNoImage == true) thumbUrl = 'http://1.bp.blogspot.com/_u4gySN2ZgqE/SosvnavWq0I/AAAAAAAAArk/yL95WlyTqr0/s400/noimage.png';
} //end ifcommenthumbs
if (showcommentDate == true) {
var commentdate = entry.published.$t;
var cdyear = commentdate.substring(0, 4);
var cdmonth = commentdate.substring(5, 7);
var cdday = commentdate.substring(8, 10);
var monthnames = new Array();
monthnames[1] = "Jan";
monthnames[2] = "Feb";
monthnames[3] = "Mar";
monthnames[4] = "Apr";
monthnames[5] = "May";
monthnames[6] = "Jun";
monthnames[7] = "Jul";
monthnames[8] = "Aug";
monthnames[9] = "Sep";
monthnames[10] = "Oct";
monthnames[11] = "Nov";
monthnames[12] = "Dec";
} //end if date
code = "";
main = document.getElementById('stylify_random_comments');
myDiv = document.createElement('div');
myDiv.setAttribute("class", "stylify_item_title");
myDiv.style.clear = "both";
myDiv.style.marginTop = "4px";
myLink = createLink(commentUrl, "_top", commentTitleOriginal)
if (commentTitle != '') myDiv.appendChild(myLink);
main.appendChild(myDiv);
if (commentTitle != '') myLink.innerHTML = commentTitle;
if (showThumbs == true && thumbUrl != "") {
myImage = document.createElement('img');
myImage.style.border = "0px solid transparent";
myImage.style.margin = "5px";
myImage.style.boxShadow = "0 0 0px rgba(0, 0, 0, 0.3)";
myImage.setAttribute("src", thumbUrl);
myImage.style.cssFloat = imgFloat;
myImage.style.styleFloat = imgFloat;
//myImage.setAttribute("alt", commentTitleOriginal);
myImage.setAttribute("width", imgDim);
//myImage.setAttribute("align", imgFloat);
myImage.setAttribute("height", imgDim);
myLink = document.createElement('a');
myLink.setAttribute("href", commentUrl + "?utm_source=blog&utm_medium=gadget&utm_campaign=stylify_random_comments");
myLink.setAttribute("target", "_top");
myLink.setAttribute("title", commentTitleOriginal);
myLink.appendChild(myImage);
myDiv = document.createElement('div');
myDiv.setAttribute("class", "stylify_item_thumb");
myDiv.appendChild(myLink);
main.appendChild(myDiv);
}
try {
if ("content" in entry) {
var commentContent = entry.content.$t;
} else if ("summary" in entry) {
var commentContent = entry.summary.$t;
} else var commentContent = "";
var re = /<\S[^>]*>/g;
commentContent = commentContent.replace(re, "");
if (showSummary == true) {
myDiv = createDiv("stylify_item_summary");
if (commentContent.length < summaryLength) {
myDiv.innerHTML = commentContent;
} else {
commentContent = commentContent.substring(0, summaryLength);
var quoteEnd = commentContent.lastIndexOf(" ");
commentContent = commentContent.substring(0, quoteEnd);
myDiv.innerHTML = commentContent + '...';
}
main.appendChild(myDiv);
}
} //end try
catch (error) {}
myDiv = createDiv("stylify_item_meta");
myDiv.style.clear = "both";
myDiv.style.marginBottom = "4px";
var flag = 0;
if (showcommentDate == true) {
myDiv.appendChild(document.createTextNode(monthnames[parseInt(cdmonth, 10)] + '-' + cdday + '-' + cdyear));
flag = 1;
}
if (showCommentCount == true) {
if (flag == 1) {
myDiv.appendChild(document.createTextNode(" | "));
}
if (commentText == '1 Comments') commentText = '1 Comment';
if (commentText == '0 Comments') commentText = 'No Comments';
var myLink = createLink(commentUrl, "_top", commentText + " on " + commentTitleOriginal)
myDiv.appendChild(myLink);
myLink.innerHTML = commentText;
flag = 1;;
}
if (showReadMore == true) {
if (flag == 1) {
myDiv.appendChild(document.createTextNode(" | "));
}
var myLink = createLink(commentUrl, "_top", commentTitleOriginal)
myDiv.appendChild(myLink);
myLink.innerHTML = readMore + " »";
flag = 1;;
}
if (flag == 1 || showSummary || commentTitle != "") main.appendChild(myDiv);
}
function getRandom(json) {
var feedUrl = '/feeds/comments/default';
if (mediaThumbsOnly || !showThumbs) feedUrl = feedUrl.replace("comments/default", "comments/summary");
totalcomments = parseInt(json.feed.openSearch$totalResults.$t);
var rand = [];
if (numberOfcomments > totalcomments) numberOfcomments = totalcomments;
if (numberOfcomments > 15) numberOfcomments = 15;
while (rand.length < numberOfcomments) {
var randomNumber = Math.ceil(Math.random() * totalcomments);
var found = false;
for (var i = 0; i < rand.length; i++) {
if (rand[i] == randomNumber) {
found = true;
break;
}
}
if (!found) rand[rand.length] = randomNumber;
}
var head = document.getElementsByTagName("head")[0] || document.documentElement;
for (var i = 0; i < rand.length; i++) {
script = document.createElement("script");
script.src = feedUrl + "?start-index=" + rand[i] + "&max-results=1&alt=json-in-script&callback=getcomment";
script.charSet = "utf-8";
head.appendChild(script);
}
}
function createDiv(className) {
var myDiv = document.createElement('div');
myDiv.setAttribute("class", className);
return myDiv;
}
function createLink(href, target, title) {
var myLink = document.createElement('a');
if (href.indexOf("?utm_source=") == -1) href = href + "?utm_source=blog&utm_medium=gadget&utm_campaign=stylify_random_comments";
myLink.setAttribute("href", href);
myLink.setAttribute("target", target);
myLink.setAttribute("title", title);
return myLink;
}
//]]>
</script>
<script style='text/javascript'>
var numberOfcomments = 5;
var showcommentDate = false;
var showSummary = true;
var summaryLength = 200;
var titleLength = 100;
var showCommentCount = false;
var showThumbs = true;
var showNoImage = false;
var imgDim = 50;
var imgFloat = 'left';
var myMargin = 0;
var mediaThumbsOnly = true;
var showReadMore = false;
var readMore = 'More';
</script>
<script src='/feeds/comments/default?max-results=1&alt=json-in-script&callback=getRandom'></script>