你好,你是美妙的人,我試圖建立JavaScript文件,根據輸入字段中的搜索值從維基百科中提取信息,然後顯示帶有標題的結果,如鏈接,以便用戶可以點擊鏈接並閱讀它。到目前爲止,我從Mediawiki(維基百科)獲取(JSON)格式的請求信息,但無法將其顯示在頁面上。我想我有一個JavaScript數組後的錯誤代碼。 我是JavaScript新手任何幫助,或提示將不勝感激。 對不起,我的腳本很混亂,但我正在嘗試很多。 謝謝。mediawiki api無法顯示數組中的結果
var httpRequest = false ;
var wikiReport;
function getRequestObject() {
try {
httpRequest = new XMLHttpRequest();
} catch (requestError) {
return false;
}
return httpRequest;
}
function getWiki(evt) {
if (evt.preventDefault) {
evt.preventDefault();
} else {
evt.returnValue = false;
}
var search = document.getElementsByTagName("input")[0].value;//("search").value;
if (!httpRequest) {
httpRequest = getRequestObject();
}
httpRequest.abort();
httpRequest.open("GET", "https://en.wikipedia.org/w/api.php?action=query&format=json&gsrlimit=3&generator=search&origin=*&gsrsearch=" + search , true);//("get", "StockCheck.php?t=" + entry, true);
//httpRequest.send();
httpRequest.send();
httpRequest.onreadystatechange = displayData;
}
function displayData() {
if(httpRequest.readyState === 4 && httpRequest.status === 200) {
wikiReport = JSON.parse(httpRequest.responseText);//for sunchronus request
//wikiReport = httpRequest.responseText;//for asynchronus request and response
//var wikiReport = httpRequest.responseXML;//processing XML data
var info = wikiReport.query;
var articleWiki = document.getElementsByTagName("article")[0];//creating the div array for displaying the results
var articleW = document.getElementById("results")[0];
for(var i = 0; i < info.length; i++)
{
var testDiv = document.createElement("results");
testDiv.append("<p><a href='https://en.wikipedia.org/?curid=" + query.pages[i].pageid + "' target='_blank'>" + query.info[i].title + "</a></p>");
testDiv.appendChild("<p><a href='https://en.wikipedia.org/?curid=" + query.info[i].pageid + "' target='_blank'>" + query.info[i].title + "</a></p>");
var newDiv = document.createElement("div");
var head = document.createDocumentFragment();
var newP1 = document.createElement("p");
var newP2 = document.createElement("p");
var newA = document.createElement("a");
head.appendChild(newP1);
newA.innerHTML = info[i].pages;
newA.setAttribute("href", info[i].pages);
newP1.appendChild(newA);
newP1.className = "head";
newP2.innerHTML = info[i].title;
newP2.className = "url";
newDiv.appendChild(head);
newDiv.appendChild(newP2);
articleWiki.appendChild(newDiv);
}
}
}
//
function createEventListener(){
var form = document.getElementsByTagName("form")[0];
if (form.addEventListener) {
form.addEventListener("submit", getWiki, false);
} else if (form.attachEvent) {
form.attachEvent("onsubmit", getWiki);
}
}
//createEventListener when the page load
if (window.addEventListener) {
window.addEventListener("load", createEventListener, false);
} else if (window.attachEvent) {
window.attachEvent("onload", createEventListener);
}
Mediawiki的API鏈接
https://en.wikipedia.org/w/api.php?action=query&format=json&gsrlimit=3&generator=search&origin= * & gsrsearch =