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Asp.net动态页面静态化之输出对象属性（实体关联）

Net属性ASP静态输出对象 动态 页面
2023-09-27 14:25:13 时间

Asp.net动态页面静态化之输出对象属性（实体关联）

模板引擎不单单能够输出单一的数据，还能直接输出对象的属性

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using NVelocity.Runtime;
using NVelocity;
using NVelocity.App;

namespace czbk
{
    /// <summary>
    /// Handler2 的摘要说明
    /// </summary>
    public class Handler2 : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/html";//plain表示普通文本格式输出 静态化应该输出html格式文本
            User user = new User();
            user.Username = "王大锤";
            user.Userphone = "18312345678";
            Role role = new Role();
            role.Roleid = "1001";
            role.Rolename = "超级搞笑王";
            user.User_Role1 = role;//给关联对象赋值
            VelocityEngine vltEngine = new VelocityEngine();
            vltEngine.SetProperty(RuntimeConstants.RESOURCE_LOADER, "file");
            vltEngine.SetProperty(RuntimeConstants.FILE_RESOURCE_LOADER_PATH, System.Web.Hosting.HostingEnvironment.MapPath("~/"));//模板文件所在的目录
            vltEngine.Init();
            VelocityContext vltContext = new VelocityContext();
            vltContext.Put("u", user);//设置參数。在模板中能够通过$u来引用
            Template vltTemplate = vltEngine.GetTemplate("Users.htm");
            System.IO.StringWriter vltWriter = new System.IO.StringWriter();
            vltTemplate.Merge(vltContext, vltWriter);
            string html = vltWriter.GetStringBuilder().ToString();
            context.Response.Write(html);
        }
        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
    public class User
    {
        private string username;

        public string Username
        {
            get { return username; }
            set { username = value; }
        }
        private string userphone;

        public string Userphone
        {
            get { return userphone; }
            set { userphone = value; }
        }
        private Role User_Role;//引入一个关联的类对象

        public Role User_Role1
        {
            get { return User_Role; }
            set { User_Role = value; }
        }
    }
    public class Role
    {
        private string roleid;

        public string Roleid
        {
            get { return roleid; }
            set { roleid = value; }
        }
        private string rolename;

        public string Rolename
        {
            get { return rolename; }
            set { rolename = value; }
        }
    }
}


 

前台代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
</head>
<body>
<form action='Handler2.ashx'>

用户名:<input type="text" name='username' value='$u.username' /><br />
用户电话:<input type="text" name='userphone' value="$u.userphone" /><br />  
用户角色名：<input type="text" name='userrolename' value="$u.User_Role1.rolename" /><br />
用户角色名2：<input type="text" name='userrolename' value="$u.User_Role1.Rolename" /><br />
<span style="color:red;">可能是html不区分大写和小写 所以这时调用大写和小写都是能够的 欢迎大家指出错误</span>
</form>  
</body>
</html>


 

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