【发布时间】：2020-05-12 05:37:04
【问题描述】：
由于某种原因，当我使用下面的代码在我设置了谷歌自定义搜索引擎的网站上搜索术语时，它会无限刷新，我相信代码中有一些我无法捕捉到的错误。我从另一个位于 here 的 stackoverflow 答案中找到了代码，我在这里要做的是获取从每个搜索查询返回的 JSON 数据，并将其显示为类似于普通谷歌搜索结果的设计。
Search.html
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<form action="results.html" id="cse-search-box">
<div>
<input class="" name="q" type="text">
<input class="" type="submit">
</div>
</form>
</body>
</html>
Results.html
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>JSON Custom Search API</title>
<style type="text/css">
body{
width: 100%;
}
.gs-image{
max-width: 100px;
}
</style>
</head>
<body>
<h2 style="font-weight: bold; ">Search Results:</h2>
<div class="gsc-result-info" id="resInfo-0"></div>
<hr/>
<div id="googleContent"></div>
<script>
//Handler for response from google.
function hndlr(response) {
if (response.items == null) {
//Sometimes the results say there are 34 results/4 pages, but when you click through to 3 then there is only 30, so page 4 is invalid now.
//So if we get to the invalid one, send them back a page.
window.location.replace("results.html?start=" + (start - 10) + "&q=" + query);
return;
}
//Search results load time
document.getElementById("resInfo-0").innerHTML = "About " + response.searchInformation.formattedTotalResults + " results (" + response.searchInformation.formattedSearchTime + " seconds)";
//Clear the div first, CMS is inserting a space for some reason.
document.getElementById("googleContent").innerHTML = "";
//Loop through each item in search results
for (var i = 0; i < response.items.length; i++) {
var item = response.items[i];
var content = "";
content += "<div class='gs-webResult gs-result'>" +
"<table class='gsc-table-result'><tbody><tr>";
//Thumbnail image
// if (item.pagemap.cse_thumbnail != null)
// content += "<td class='gsc-table-cell-thumbnail gsc-thumbnail'><div class='gs-image-box gs-web-image-box gs-web-image-box-portrait'><a class='gs-image' href='" + item.link + "'>" +
// "<img class='gs-image' class = 'gs-image-box gs-web-image-box gs-web-image-box-portrait' src='" + item.pagemap.cse_thumbnail[0].src + "'></a></td>";
//Link
content += "<td><a class='gs-title' href='" + item.link + "'>" + item.htmlTitle + "</a><br/>";
//File format for PDF, etc.
if (item.fileFormat != null)
content += "<div class='gs-fileFormat'><span class='gs-fileFormat'>File Format: </span><span class='gs-fileFormatType'>" + item.fileFormat + "</span></div>";
//description text and URL text.
content += item.htmlSnippet.replace('<br>','') + "<br/><div class='gs-bidi-start-align gs-visibleUrl gs-visibleUrl-long' dir='ltr' style='word-break:break-all;'>" + item.htmlFormattedUrl +"</div>" +
"<br/></td></tr></tbody></table></div>";
document.getElementById("googleContent").innerHTML += content;
}
//Page Controls
var totalPages = Math.ceil(response.searchInformation.totalResults / 10);
var currentPage = Math.floor(start / 10 + 1);
var pageControls = "<div class='gsc-results'><div class='gsc-cursor-box gs-bidi-start-align' dir='ltr'><div class='gsc-cursor'>";
//Page change controls, 10 max.
for (var x = 1; x <= totalPages && x<=10; x++) {
pageControls += "<span class='gsc-cursor-page";
if (x === currentPage)
pageControls += "gsc-cursor-current-page";
var pageLinkStart = x * 10 - 9;
pageControls+="'><a href='results.html?start="+pageLinkStart+"&q="+query+"'>"+x+"</a> </span>";
}
pageControls += "</div></div></div>";
document.getElementById("googleContent").innerHTML += pageControls;
}
//Get search text from query string.a
var query = document.URL.substr(document.URL.indexOf("q=") + 2);
var start = document.URL.substr(document.URL.indexOf("start=") + 6, 2);
if (start === "1&" || document.URL.indexOf("start=") === -1)
start = 1;
//Load the script src dynamically to load script with query to call.
//DOM: Create the script element
var jsElm = document.createElement("script");
//Set the type attribute
jsElm.type = "application/javascript";
//Make the script element load file
jsElm.src = "https://www.googleapis.com/customsearch/v1?key=yourAPIkeyHERE&cx=yourSEARCHengineIDhere&start="+start+"&q=" +query +"&callback=hndlr";
//Finally insert the element to the body element in order to load the script
document.body.appendChild(jsElm);
</script>
</body>
</html>
【问题讨论】：
标签： javascript html google-api google-custom-search