Asp.net动态页面静态化之字典哈希表的输出已经遍历判断的实现
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using NVelocity.Runtime;
using NVelocity;
using NVelocity.App;
using System.Collections;
namespace czbk
{
/// <summary>
/// dictionary 的摘要说明
/// </summary>
public class dictionary : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
//新建一个带索引字典
Dictionary<string, string> dict = new Dictionary<string, string>();
dict["java"] = "java工程师";
dict["net"] = "net工程师";
dict["c"] = "c工程师";
//新建hash表
// Dictionary HashTable
// 强类型 弱类型
// 内存小 内存多
//Dictionary<key,value>为HashTable的泛型版本只是 Dictionary<key,value>对存入数据类型有要求，而HashTable可以存入任何类型。
Hashtable hash = new Hashtable();
hash.Add("adc", "寒冰射手");
hash.Add("apc", "九尾妖狐");
//新建数组
string[] strs = new string[] { "ef","linq","mvc","jQueery"};
//新建集合
List<Role> newrole=new List<Role>();
newrole.Add(new Role { Roleid = "001", Rolename = "青铜" });
newrole.Add(new Role { Roleid = "002", Rolename = "白银" });
newrole.Add(new Role { Roleid = "003", Rolename = "黄金" });
newrole.Add(new Role { Roleid = "004", Rolename = "铂金" });
VelocityEngine vltEngine = new VelocityEngine();
vltEngine.SetProperty(RuntimeConstants.RESOURCE_LOADER, "file");
vltEngine.SetProperty(RuntimeConstants.FILE_RESOURCE_LOADER_PATH, System.Web.Hosting.HostingEnvironment.MapPath("~/"));//模板文件所在的文件夹
vltEngine.Init();
VelocityContext vltContext = new VelocityContext();
vltContext.Put("dict", dict);//设置参数，在模板中可以通过$data来引用);
vltContext.Put("hash", hash);
vltContext.Put("strs", strs);
vltContext.Put("newrole", newrole);
Template vltTemplate = vltEngine.GetTemplate("dictionary.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;
}
}
}
}
前台界面
<!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>
=========字典索引输出=========<br />
$dict.java<br />
$dict.net<br />
$dict.c<br />
=========哈希表输出=========<br />
$hash.adc<br />
$hash.apc<br />
=========数组遍历输出=========<br />
<ul>
#foreach($str in $strs)
<li>
$str
</li>
#end
</ul>
=========集合遍历输出=========<br />
<ul>
#foreach($r in $newrole)
<li>
$r.roleid<span style="color:Red;">$r.rolename</span>
</li>
#end
</ul>
=========if判断=========<br />
<ul>
#foreach($rr in $newrole)
$rr.roleid
#if($rr.rolename=="铂金")
<li>哇！你是华贵的铂金啊！</li>
#elseif($rr.rolename=="黄金")
<li>哇！你是尊贵的黄金啊！继续保持</li>
#else
<li>你还需要加油喔！</li>
#end
#end
</ul>
</body>
</html>
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时间： 2024-08-07 04:33:07