第一種方法:向服務(wù)器的動(dòng)態(tài)頁(yè)面發(fā)送請(qǐng)求,獲取頁(yè)面的html代碼。這種方法缺點(diǎn)顯而易見(jiàn):速度慢。另外如果請(qǐng)求的動(dòng)態(tài)頁(yè)面有驗(yàn)證控件的話,返回的html頁(yè)面卻無(wú)法進(jìn)行數(shù)據(jù)驗(yàn)證。但這種方法寫(xiě)起來(lái)比較簡(jiǎn)單。主要代碼如下:
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#region//生成被請(qǐng)求URL靜態(tài)頁(yè)面
public static void getUrltoHtml(string Url,string Path)//Url為動(dòng)態(tài)頁(yè)面地址,Path為生成的靜態(tài)頁(yè)面
{
try
{
System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url);
// Get the response instance.
System.Net.WebResponse wResp =wReq.GetResponse();
// Get the response stream.
System.IO.Stream respStream = wResp.GetResponseStream();
// Dim reader As StreamReader = New StreamReader(respStream)
System.IO.StreamReader reader = new System.IO.StreamReader(respStream,System.Text.Encoding.GetEncoding("gb2312"));
string str=reader.ReadToEnd();
System.IO.StreamWriter sw=new System.IO.StreamWriter(Path,false,System.Text.Encoding.GetEncoding("gb2312"));
sw.Write(str);
sw.Flush();
sw.Close();
System.Web.HttpContext.Current.Response.Write("<mce:script type="text/javascript"><!--
alert('頁(yè)面生成成功!');
// --></mce:script>");
}
catch(System.Exception ex)
{
System.Web.HttpContext.Current.Response.Write("<mce:script type="text/javascript"><!--
alert('頁(yè)面生成失敗!"+ex.Message+"');
// --></mce:script>");
}
}
#endregion
#region//生成被請(qǐng)求URL靜態(tài)頁(yè)面
public static void getUrltoHtml(string Url,string Path)//Url為動(dòng)態(tài)頁(yè)面地址,Path為生成的靜態(tài)頁(yè)面
{
try
{
System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url);
// Get the response instance.
System.Net.WebResponse wResp =wReq.GetResponse();
// Get the response stream.
System.IO.Stream respStream = wResp.GetResponseStream();
// Dim reader As StreamReader = New StreamReader(respStream)
System.IO.StreamReader reader = new System.IO.StreamReader(respStream,System.Text.Encoding.GetEncoding("gb2312"));
string str=reader.ReadToEnd();
System.IO.StreamWriter sw=new System.IO.StreamWriter(Path,false,System.Text.Encoding.GetEncoding("gb2312"));
sw.Write(str);
sw.Flush();
sw.Close();
System.Web.HttpContext.Current.Response.Write("<mce:script type="text/javascript"><!--
alert('頁(yè)面生成成功!');
// --></mce:script>");
}
catch(System.Exception ex)
{
System.Web.HttpContext.Current.Response.Write("<mce:script type="text/javascript"><!--
alert('頁(yè)面生成失敗!"+ex.Message+"');
// --></mce:script>");
}
}
#endregion
第二種方法:從文件讀取模版,替換模版中的參數(shù)后輸出文件,這種方法的生成速度上比第一種要快許多,而且模版內(nèi)容可以用工具任意編輯
主要代碼:
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public class Create
{
public void CreatePage()
{
}
public static bool WriteFile(string strText,string strContent,string strAuthor)
{
string path = HttpContext.Current.Server.MapPath("/test/");//文件輸出目錄
Encoding code = Encoding.GetEncoding("gb2312");
// 讀取模板文件
string temp = HttpContext.Current.Server.MapPath("/template/test.html");//模版文件
StreamReader sr=null;
StreamWriter sw=null;
string str="";
try
{
sr = new StreamReader(temp,code);
str = sr.ReadToEnd(); // 讀取文件
}
catch(Exception exp)
{
HttpContext.Current.Response.Write(exp.Message);
HttpContext.Current.Response.End();
sr.Close();
}
string htmlfilename=DateTime.Now.ToString("yyyyMMddHHmmss")+".html";//靜態(tài)文件名
// 替換內(nèi)容
// 這時(shí),模板文件已經(jīng)讀入到名稱為str的變量中了
str = str.Replace("ShowArticle",strText); //模板頁(yè)中的ShowArticle
str = str.Replace("biaoti",strText);
str = str.Replace("content",strContent);
str = str.Replace("author",strAuthor);
// 寫(xiě)文件
try
{
sw = new StreamWriter(path + htmlfilename , false, code);
sw.Write(str);
sw.Flush();
}
catch(Exception ex)
{
HttpContext.Current.Response.Write(ex.Message);
HttpContext.Current.Response.End();
}
finally
{
sw.Close();
}
return true;
}
}
/原理是利用System.IO中的類讀寫(xiě)模板文件,然后用Replace替換掉模板中的標(biāo)簽,寫(xiě)入靜態(tài)html
public class Create
{
public void CreatePage()
{
}
public static bool WriteFile(string strText,string strContent,string strAuthor)
{
string path = HttpContext.Current.Server.MapPath("/test/");//文件輸出目錄
Encoding code = Encoding.GetEncoding("gb2312");
// 讀取模板文件
string temp = HttpContext.Current.Server.MapPath("/template/test.html");//模版文件
StreamReader sr=null;
StreamWriter sw=null;
string str="";
try
{
sr = new StreamReader(temp,code);
str = sr.ReadToEnd(); // 讀取文件
}
catch(Exception exp)
{
HttpContext.Current.Response.Write(exp.Message);
HttpContext.Current.Response.End();
sr.Close();
}
string htmlfilename=DateTime.Now.ToString("yyyyMMddHHmmss")+".html";//靜態(tài)文件名
// 替換內(nèi)容
// 這時(shí),模板文件已經(jīng)讀入到名稱為str的變量中了
str = str.Replace("ShowArticle",strText); //模板頁(yè)中的ShowArticle
str = str.Replace("biaoti",strText);
str = str.Replace("content",strContent);
str = str.Replace("author",strAuthor);
// 寫(xiě)文件
try
{
sw = new StreamWriter(path + htmlfilename , false, code);
sw.Write(str);
sw.Flush();
}
catch(Exception ex)
{
HttpContext.Current.Response.Write(ex.Message);
HttpContext.Current.Response.End();
}
finally
{
sw.Close();
}
return true;
}
}
//原理是利用System.IO中的類讀寫(xiě)模板文件,然后用Replace替換掉模板中的標(biāo)簽,寫(xiě)入靜態(tài)html
第三種方法:如果生成的文件數(shù)量比較多,第二種方法就要反復(fù)讀取模版內(nèi)容,這時(shí)可以用第三種方法——直接將你的模版寫(xiě)在代碼中:
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/// <summary>
/// 自定義公共函數(shù)
/// </summary>
public class myfun
{
#region//定義模版頁(yè)
public static string SiteTemplate()
{
string str="";
str+="...";//模版頁(yè)html代碼
return str;
}
#endregion
public static bool WriteFile(string strText,string strContent,string strAuthor)
{
string path = HttpContext.Current.Server.MapPath("/test/");//文件輸出目錄
Encoding code = Encoding.GetEncoding("gb2312");
StreamWriter sw=null;
string str=SiteTemplate();//讀取模版頁(yè)面html代碼
string htmlfilename=DateTime.Now.ToString("yyyyMMddHHmmss")+".html";//靜態(tài)文件名
// 替換內(nèi)容
str = str.Replace("ShowArticle",strText);
str = str.Replace("biaoti",strText);
str = str.Replace("content",strContent);
str = str.Replace("author",strAuthor);
// 寫(xiě)文件
try
{
sw = new StreamWriter(path + htmlfilename , false, code);
sw.Write(str);
sw.Flush();
}
catch(Exception ex)
{
HttpContext.Current.Response.Write(ex.Message);
HttpContext.Current.Response.End();
}
finally
{
sw.Close();
}
return true;
}
}
/// <summary>
/// 自定義公共函數(shù)
/// </summary>
public class myfun
{
#region//定義模版頁(yè)
public static string SiteTemplate()
{
string str="";
str+="...";//模版頁(yè)html代碼
return str;
}
#endregion
public static bool WriteFile(string strText,string strContent,string strAuthor)
{
string path = HttpContext.Current.Server.MapPath("/test/");//文件輸出目錄
Encoding code = Encoding.GetEncoding("gb2312");
StreamWriter sw=null;
string str=SiteTemplate();//讀取模版頁(yè)面html代碼
string htmlfilename=DateTime.Now.ToString("yyyyMMddHHmmss")+".html";//靜態(tài)文件名
// 替換內(nèi)容
str = str.Replace("ShowArticle",strText);
str = str.Replace("biaoti",strText);
str = str.Replace("content",strContent);
str = str.Replace("author",strAuthor);
// 寫(xiě)文件
try
{
sw = new StreamWriter(path + htmlfilename , false, code);
sw.Write(str);
sw.Flush();
}
catch(Exception ex)
{
HttpContext.Current.Response.Write(ex.Message);
HttpContext.Current.Response.End();
}
finally
{
sw.Close();
}
return true;
}
}
三種方法比較起來(lái)生成速度由慢到快,易操作性則由簡(jiǎn)到繁。還請(qǐng)根據(jù)實(shí)際情況選擇合適的方法。
[ 收 集 ] :
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protected override void Render(HtmlTextWriter writer)
{
System.IO.StringWriter html = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter tw = new System.Web.UI.HtmlTextWriter(html);
base.Render(tw);
System.IO.StreamWriter sw;
sw = new System.IO.StreamWriter(Server.MapPath("default.html"), false, System.Text.Encoding.Default);
sw.Write(html.ToString());
sw.Close();
tw.Close();
Response.Write(html.ToString());
}
protected override void Render(HtmlTextWriter writer)
{
System.IO.StringWriter html = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter tw = new System.Web.UI.HtmlTextWriter(html);
base.Render(tw);
System.IO.StreamWriter sw;
sw = new System.IO.StreamWriter(Server.MapPath("default.html"), false, System.Text.Encoding.Default);
sw.Write(html.ToString());
sw.Close();
tw.Close();
Response.Write(html.ToString());
}
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使用ASP.NET生成靜態(tài)頁(yè)面的方法有兩種,第一種是使用C#在后臺(tái)硬編碼,第二種是讀取模板文件,使用字符串替換的方法。第一種方法編碼量大,而且維護(hù)比較困難。我重點(diǎn)講解第二種方法。第二種方法的基本思路是:使用DW之類的工具生成一個(gè)靜態(tài)頁(yè)面模板。讀取該模板文件,然后對(duì)里面的特殊標(biāo)記使用真實(shí)的數(shù)據(jù)替換掉,并生成一個(gè)HTML文件
請(qǐng)看代碼
1.C#
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.IO;
namespace htmlWeb
{
public class CreateHtm
{
private string fileName;
public String FileName
{
get { return fileName; }
}
/**//// <summary>
/// 讀取配置文件
/// </summary>
/// <param name="dirName">配置文件的路徑名</param>
/// <param name="tag">配置文件中的標(biāo)簽名</param>
/// <returns>_replaceStr的長(zhǎng)度</returns>
private int GetConfig(String dirName, String tag)
{
XmlDataDocument config = new XmlDataDocument();
try
{
config.Load(dirName);
}
catch (Exception ex)
{
throw ex;
}
XmlNodeList list = config.GetElementsByTagName(tag);
return list.Count;
}
/**//// <summary>
///生成HTML文件
/// </summary>
/// <param name="configFileName">配置文件的路徑名</param>
/// <param name="configTag">配置文件中的標(biāo)簽名</param>
/// <param name="dir">生成文件所在的文件夾的路徑</param>
/// <param name="templateFile">模板文件的的路徑</param>
/// <param name="param">要替換的字符串?dāng)?shù)組</param>
/// <returns>生成的文件名</returns>
public void MakeHtml(String configFileName, String configTag, String dir, String templateFile, String[] param)
{
fileName = null;
int count = GetConfig(configFileName, configTag);
String[] _replaceStr = new String[count];
try
{
FileStream tFile = File.Open(templateFile, FileMode.Open, FileAccess.Read);
StreamReader reader = new StreamReader(tFile, Encoding.GetEncoding("gb2312"));
StringBuilder sb = new StringBuilder(reader.ReadToEnd());
reader.Close();
for (int i = 0; i < count; i++)
{
sb.Replace("$repalce[" + i + "]$", param[i]);
}
fileName = DateTime.Now.ToFileTime().ToString() + ".htm";
FileStream rFile = File.Create(dir+"/" + fileName);
StreamWriter writer = new StreamWriter(rFile, Encoding.GetEncoding("gb2312"));
writer.Write(sb.ToString());
writer.Flush();
writer.Close();
}
catch (Exception ex)
{
throw ex;
}
}
public void DeleteHtml(String dirName)
{
File.Delete(dirName);
}
}
}
private int GetConfig(String dirName, String tag) 此方法用于讀取配置文件(見(jiàn)后),主要是獲得要替換的字符串的個(gè)數(shù),在本類同體現(xiàn)為一個(gè)字符串?dāng)?shù)組
public void MakeHtml(String configFileName, String configTag, String dir, String templateFile, String[] param) 此方法用于生成靜態(tài)頁(yè)面
51.52行創(chuàng)建一個(gè)字符數(shù)組,數(shù)組長(zhǎng)度為配置文件中的節(jié)點(diǎn)個(gè)數(shù)。55-58行讀取模板文件,并用讀到的模板文件的HTML代碼生成一個(gè)StringBuilder對(duì)象。59-62行使用StringBuilderd對(duì)象的repalce()方法替換標(biāo)記“$repalce[i]$"為真實(shí)的數(shù)據(jù)
64行生成一個(gè)唯一的文件名(防止覆蓋)66-70行把新的字符串寫(xiě)到文件中。這樣就生成了一個(gè)靜態(tài)文件了。
下面看一個(gè)使用的實(shí)例:
一個(gè)文章管理系統(tǒng),利用這個(gè)類來(lái)生成靜態(tài)頁(yè)面。
首先,建立一個(gè)配置文件 config.xml.此文件告訴使用者每個(gè)標(biāo)記的含義。如下
<?xml version="1.0" encoding="utf-8" ?>
<htmlWeb version="1">
<config>
<article key="0" value="title"/>
<article key="1" value="author"/>
<article key="2" value="context"/>
<aritcle key="3" value="date"/>
</config>
</htmlWeb>
10這樣配置后,類會(huì)把標(biāo)記數(shù)組0,1,2,3的位置分別替換為題目,作者,內(nèi)容,發(fā)布日期。
看模板文件
1<head>
2<title>模板文件</title>
3</head>
4<body>
5<h1>這是一個(gè)簡(jiǎn)單的HTML頁(yè),朋友們可以根據(jù)自己的需要重新設(shè)計(jì)</h1>
6<li>標(biāo)題:$replace[0]$</li>
7<li>作者:$replace[1]$</li>
8<li>內(nèi)容:$repalce[2]$</li>
9<li>時(shí)間:$repalce[3]$</li>
10</body>使用方法:
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.Web.UI.WebControls.WebParts;
9using System.Web.UI.HtmlControls;
10
11namespace UseT
12{
13 public class Test{
14
15 public void main(){
16 string[] param = new string[4];
17 param[0] = "測(cè)試模板";
18 param[1] = "農(nóng)佳捷";
19 param[2] = "這是一個(gè)測(cè)試文章";
20 param[3] = "2007-10-30";
21
22 htmlWeb.CreateHtm cs = new htmlWeb.CreateHtm();
23 cs.MakeHtml("配置文件的路徑
24“, ”article“, ”生成文件的路徑“, "模板文件的路徑", param)
25
26 }
27 }
28}
29只要把相應(yīng)的參數(shù)修改為實(shí)際的值,就生成靜態(tài)文件了。
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