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 the ProcessData option description to prevent this automatic conversion. Must be in the Key/value format. If you are an array, jquery will automatically correspond to the same name for different values. such as {foo:["bar1", "Bar2"]} is converted to ' &foo=bar1&foo=bar2 '.
DataType
String
The type of data expected to be returned by the server. If not specified, jquery will automatically return Responsexml or responsetext based on the HTTP packet mime information and pass as a callback function parameter, available values:
"XML": Returns an XML document that can be processed with jquery.
HTML: Returns plain text HTML information, including script elements.
Script: Returns the effect code for a plain text Web page. Results are not automatically cached.
"JSON": Returns JSON data.
"JSONP": Jsonp format. When calling a function using JSONP form, such as "myurl?callback=?" jquery is automatically replaced? To 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
}
Here are a few Ajax event parameters: Beforesend, Success, complete, error. We can define these events to deal well with each of our AJAX requests. Notice that this in these AJAX events is the information about the options for the Ajax request (refer to the picture of this when you say Get () method).