How to assign value to jsp page in Java-javaTutorial-php.cn

How to assign value to jsp page in Java

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Release： 2019-05-29 11:47:12

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Use forwarding to assign values to jsp pages. The specific operation is as follows:

How to assign value to jsp page in Java

This uses forwarding in the servlet to implement parameter transfer

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    request.setCharacterEncoding("UTF-8");
    request.setAttribute("username", "dhweicheng");
    request.setAttribute("password", "123456");
    request.getRequestDispatcher("/my.jsp").forward(request, response);
}

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jsp page code:

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>页面代码</title>
    </head>
    <body>
        <h5>通过request对象取值</h5>
        账号:<%=request.getAttribute("username") %>
        密码:<%=request.getAttribute("password") %>
        <P>=======================</P>
        <h5>通过EL表达式取值</h5>
        账号:${username}
        密码:${password}
    </body>
</html>

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