How to get URL parameters _jsp programming in JSP pages

Source: Internet
Author: User
When a URL comes along, such as: Http://localhost:8080/pro/demo/hello.jsp?name=john, on the hello.jsp page, we can get the value of name:
Copy Code code as follows:

<%
String path = Request.getcontextpath ();
String basepath = request.getscheme () + "://" +request.getservername () + ":" +request.getserverport () +path+ "/";
String name = Request.getparameter ("name");
%>

Then show in <body>hello:<%=name%></body>.

It can also be obtained directly in the body with ${}, because the URL request parameter is placed in the implied object param when the jstl is used. So you can write this:
Copy Code code as follows:

<body>hello:${param.name}</body>
Based on this logic, you can use jquery in the same way, such as:
$ (function () {
Alert (${param.name});
});
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