Three ways to implement ajax

AJAX is a necessary skill for data interaction on the front end. By using AJAX, you can achieve page refresh access and bring a better experience to users.

Jquery’s ajax implementation

load method

1 Implementing the load method Only the effect of url parameter

load(url)

##2 The load method has three parameters url data function

The first parameter url: indicates the request path

The second parameter passes the data

The third parameter returns after receiving the servlet Related data, there are three data values ​​in it

The first is the servlet return content

The second is the status code description success

The third is the XMLHttpRequest object

$.get()

Send get request

$ .post()

Send post request

Writing method

$.post(url,{"name":value},function(data,status) {...})

The first parameter is: request url address

The second parameter is : The data passed

The third parameter is: callback function (data: indicates the return data; status: indicates the return status code description)

$.ajax()

Send asynchronous operation

##Commonly used Parameters:

type: Set the submission method get or post

dataType: Set the format of the returned data

url: Set the request path

data: Pass parameters name=value&name2=value

success: After the request is successful, the bound callback function

has two parameters data: indicates the return data; stauts indicates the return status code description

The above are the three implementation methods of ajax and jquery that I compiled. I hope it will be helpful to everyone in the future.

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