Name of parameter |
Type |
Describe |
URL |
String |
(Default: Current page address) sends the requested address. |
type |
String |
(Default: "Get") Request method ("POST" or "get"), default to "get". Note: Other HTTP request methods, such as put and DELETE, are also available, but only partially supported by browsers. |
Timeout |
Number |
Sets the request timeout (in milliseconds). This setting overrides the global setting. |
Async |
Boolean |
(Default: TRUE) The default setting is that all requests are asynchronous requests. If you need to send a sync request, set this option to false. Note that the synchronization request will lock the browser and the user's other actions must wait for the request to complete before it can be executed. |
Beforesend |
Function |
You can modify the functions of the XMLHttpRequest object before sending the request, such as adding a custom HTTP header. The XMLHttpRequest object is the only parameter.
function (XMLHttpRequest) { This The options for this AJAX request } |
Cache |
Boolean |
(default: TRUE) JQuery 1.2 new functionality, set to false will not load request information from the browser cache. |
Complete |
Function |
The callback function (called when the request succeeds or fails) after the request completes. Parameters: XMLHttpRequest Object, Success message string.
function (XMLHttpRequest, textstatus) { This The options for this AJAX request } |
ContentType |
String |
(Default: "application/x-www-form-urlencoded") the content encoding type when sending information to the server. Default values are appropriate for most applications. |
data |
Object, String |
Data sent to the server. is automatically converted to the request string format. The get request is appended to the url . View processData option Descriptions to prevent this automatic conversion. Must be in the key/value format. If the array,jquery will automatically correspond to the same name for different values. such as {foo:["Bar1", "Bar2"]} converted to ' &foo=bar1&foo=bar2 '. |
DataType |
String The |
expects the data type returned by the server. If,jquery is not specified, the responseXML or responsetext is automatically returned according to the HTTP package mime information, and is passed as a callback function parameter. Available values: XML: returns XML documents, available jQuery processing. The HTML: returns plain text HTML information, and contains script elements. The Script: returns plain text JavaScript code. Results are not automatically cached. "JSON": returns JSON data . The "JSONP": jsonp format. When calling a function using the JSONP form, such as "myurl?callback=?" jquery automatically replaces ? with the correct function name to execute the callback function. |
Error |
Function |
(Default: Automatic judgment (XML or HTML)) This method is called when a request fails. This method has three parameters: the XMLHttpRequest object, the error message, and (possibly) the error object being caught.
function (XMLHttpRequest, textstatus, Errorthrown) { Typically, only one of the Textstatus and Errorthown has a value. This The options for this AJAX request } |
Global |
Boolean |
(default: TRUE) triggers a global AJAX event. Setting to FALSE will not trigger global AJAX events, such as Ajaxstart or Ajaxstop. Can be used to control different AJAX events |
Ifmodified |
Boolean |
(default: false) gets new data only when the server data changes. Use HTTP packet last-modified header information to determine. |
ProcessData |
Boolean |
(default: TRUE) by default, the data sent is converted to an object (technically not a string) to match the default content type "application/x-www-form-urlencoded". Set to False if you want to send DOM tree information or other information that you do not want to convert. |
Success |
Function |
callback function after successful request. This method has two parameters: the server returns the data, returns the status
function (data, textstatus) { Data could be xmldoc, jsonobj, HTML, text, etc ... This The options for this AJAX request } |