js Native Ajax in Ajax and JQuery

AJAX = Asynchronous JavaScript and XML (Asynchronous JavaScript and XML).

js in Ajax:

Parameter Description:

open (String method, String url, boolean asynch);
        preparation request:
            URL:
            GET / POST
            to true / false:
            to true: Asynchronous
            false: Synchronous

readyState
        change the state of the XMLHttpRequest object. 4 (complete) data has been received, this time for obtaining a complete response information responseXML or responseText.

Status
        the HTTP server status code (200 = OK 404 = Not Found

responseText
        server's response, expressed as a text.

responseXML
        response from the server, represented as an XML document.

= function ajax.onreadystatechange () {
        // callback
        IF (ajax.status == == 200 is && ajax.readyState. 4) {
            // Get the server feedback
            // Get Data
            var = ajax.responseText Data
            var = ajax.responseXML dataxml
            // do dom operation using js
        }    
     }

 

 

JQuery in Ajax:

 

•  $.ajax({
•       of the type: "POST", // submission
•      url : "${pageContext.request.contextPath}/org/doDelete.action",//路径
•      data : {
•        "org.id" : "${org.id}"
•      } // data used here is the transmission format Json
•      success : function(result) {　　//返回数据根据结果进行相应的处理
•        if ( result.success ) {
•        $( "#tipMsg").text("删除数据成功");
•        tree.deleteItem( "${org.id}", true);
•       } else {
•        $( "#tipMsg").text("删除数据失败");
•       }
•      }
•     });