{"id":79,"date":"2007-10-01T16:21:27","date_gmt":"2007-10-01T14:21:27","guid":{"rendered":"http:\/\/www.hermione.de\/blog\/?p=79"},"modified":"2007-10-05T15:37:13","modified_gmt":"2007-10-05T13:37:13","slug":"xmlhttprequest-ajax","status":"publish","type":"post","link":"http:\/\/blog.hermione.de\/?p=79","title":{"rendered":"XMLHttpRequest [AJAX]"},"content":{"rendered":"

Erzeugung des XMLHttpRequest-Objekts<\/h4>\n

var request = null;
\nif (window.XMLHttpRequest) {
\nrequest = new XMLHttpRequest();
\n}<\/p>\n

<\/p>\n\n\n
var request = null;
\ntry {
\nrequest = XHTMLHttpRequest();<\/strong>
\n} catch(e) {
\ntry {
\nrequest = new ActiveXObject(„Msxml2.XMLHTTP“);
\n} catch(e) {
\ntry {
\nrequest = new ActiveXObject(„Microsoft.XMLHTTP“);
\n} catch(e) {
\n\/\/ Kein XMLHttpRequest-Objekt erhalten
\n}
\n}
\n}<\/td>\n<\/tr>\n<\/table>\n

Serveranfrage<\/h4>\n\n\n
window.onload = function () {
\nrequest.open(GET,“miz.txt“);<\/strong>
\nrequest.onreadystatechanged = mizVan;<\/strong>
\nrequest.send(null);<\/strong>
\n}<\/td>\n<\/tr>\n<\/table>\n

Parameteruebergabe per GET<\/h4>\n\n\n
window.onload = function() {
\nrequest.open(„GET“,“daten.php?a=schubidu&b=ein%20get“);<\/strong>
\nrequest.onreadystatechange = mizVan;
\nrequest.send(null);
\n}<\/td>\n<\/tr>\n<\/table>\n

Parameteruebergabe per POST<\/h4>\n\n\n
window.onload = function() {
\nrequest.open(„POST“,“daten.php“);
\nrequest.onreadystatechange = mizVan;
\nrequest.setRequestHeader(„Content-Type“,“application\/x-www-form-urlencoded“);<\/strong>
\nrequest.send(„a=lalelu&b=ein%20post“);
\n}<\/td>\n<\/tr>\n<\/table>\n

Callback-Funktion<\/h4>\n\n\n
function mizVan() {
\nif (request.readyState == 4) {
\nif (request.status == 200) {
\n\/\/ Serverantwort verarbeiten
\n\/\/ request.responseText Server-Antwort als String
\n\/\/ request.responseXML Server-Antwort als XML DOM Element
\n\/\/ request.status und request.statusText HTTP-Statuscode und Beschreibungstext
\n}
\n}
\n}<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Erzeugung des XMLHttpRequest-Objekts var request = null; if (window.XMLHttpRequest) { request = new XMLHttpRequest(); }<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.hermione.de\/index.php?rest_route=\/wp\/v2\/posts\/79"}],"collection":[{"href":"http:\/\/blog.hermione.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.hermione.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.hermione.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.hermione.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=79"}],"version-history":[{"count":0,"href":"http:\/\/blog.hermione.de\/index.php?rest_route=\/wp\/v2\/posts\/79\/revisions"}],"wp:attachment":[{"href":"http:\/\/blog.hermione.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=79"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.hermione.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=79"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.hermione.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=79"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}