How to get the parameters of get request in jquery

JQuery is a very popular JavaScript library. It provides many convenient and fast methods to operate DOM, achieve animation effects, handle AJAX requests, etc. This article will focus on how to use JQuery to obtain the parameters of the GET request.

In web development, GET request is a very common HTTP request method, which is usually used to obtain resources from the server. When we access a URL through a browser, if there are parameters in the URL, these parameters are passed in the GET request. For example:

http://www.example.com/search?q=jquery&lang=en

In the above URL, the values ​​of the parameters q and lang are jquery and en respectively, and they are passed to the server through the GET request.

So how do you get the parameters of these GET requests in JQuery? It's actually very simple, we just need to use the URL parsing tool and string processing function provided by JQuery.

First, we need to use JQuery to get the URL of the current page, which can be achieved using window.location.href or window.location.toString():

var url = window.location.href; //获取当前页面的URL

Next, we need to parse this URL into an object so that we can obtain its parameters. You can use JQuery's $.url() method to achieve this:

var urlObj = $.url(url); //将URL解析成一个对象

The above code uses a JQuery plug-in called "jquery-url". If you haven't installed it yet, you can find the installation package online or in Directly imported from CDN. After the installation is complete, we can use the $.url() method to parse the URL.

Now, we have parsed the URL into an object, and then we can get the parameters through this object. We can use the attr() method or prop() method provided by JQuery to get the value of an attribute, but here we recommend using a JQuery plug-in specifically for URL parameter parsing - jQuery.url().params. This method will return a JS object containing all URL parameters.

For example, if we want to get the parameters q and lang in the URL above, we can do this:

var params = urlObj.params; //将URL参数解析成JS对象
var q = params.q; //获取q参数的值
var lang = params.lang; //获取lang参数的值

Now, we have successfully obtained the parameters in the GET request. This method works for all forms of GET requests, whether manually entered in the address bar or passed through page jumps, etc.

To summarize, JQuery provides many convenient and fast methods to handle parameters in GET requests. We can use the $.url() method to parse the URL into an object, and then use the params method to obtain the parameters. Through this method, we can easily handle the parameters in the URL and implement some more complex functions.

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