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qq_花开花谢_0
123456789101112131415$.ajax({ url:"xxxxxx", type:"post", dataType:"json", data:"hello world", headers: {'Content-Type': 'application/json'}, success: function (ret) { if (ret.status == 1) { window.location.reload(); } else { alert(ret.message); } }}) 使用post请求，这里的data里的参数就是在body形式传过去。
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有只小跳蛙
12345678public boolean isAjaxRequest(HttpServletRequest request){ String header = request.getHeader("X-Requested-With"); if ("XMLHttpRequest".equals(header)) { return true; } else { return false; }}
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心有法竹
普通情况下没法判断不过如果使用jquery做ajax 会自动在请求的header里面加上一个 x-request-with 可以通过这个判断。望采纳！ <html><!DOCTYPE html> <html> <head> <script> function loadXMLDoc() { var xmlhttp; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("myDiv").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","/try/ajax/demo_get.php",true); xmlhttp.send(); } </script> </head> <body> <h2>AJAX</h2> <button type="button" onclick="loadXMLDoc()">Request data</button> <div id="myDiv"></div> </body> </html>