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  • 如何将servlet中的变量在jsp页面中显示--普通方法

    //一.在servlet中的步骤

    //1.获取参数,在地址栏输入
    String username = request.getParameter("username");
    String password = request.getParameter("password");
    String realname = "张三";
    String gender = "男";
    int age = 22;

    //2.判读,进行跳转
    if ("zhangsan".equals(username) && "123456".equals(password)) {
    //在request作用域中设置key-value
    request.setAttribute("username", username);
    request.setAttribute("realname", realname);
    request.setAttribute("gender", gender);
    request.setAttribute("age", age);
    //然后使用请求转发到另一个页面(index.jsp)去取这个值(value)
    request.getRequestDispatcher("index.jsp").forward(request, response);
    }
    }

    //二.在jsp中的设置
    欢迎<%=request.getAttribute("username")回来!
    真实姓名:<%=request.getAttribute("realname") %>
    性别:<%=request.getAttribute("gender")%>
    年龄:<%=request.getAttribute("age") %>

    存在缺点:数据多了,存储麻烦

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    支配树
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    PropertiesConfiguration
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    FastJson
  • 原文地址:https://www.cnblogs.com/su-chu-zhi-151/p/11221832.html
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