在网上无意看到的,不过一开始没看懂,后来试了一下,才明白是干什么的。主要是把网址当成一个对象来处理了。
比如说,现在我要生成一个网址 http://www.xxx.com/bbs/view.aspx?id=100&user=szyicol
这个时候可能要手工一个一个用+和变量连起来。这里就可以用一个URL处理类了。
比如设置这个类的主机是www.xxx.com,目录是bbs ,页面是view.aspx ,参数就有多个了。当然在初始化的时候,也可以给一个地址,这个类会自己会析并保存起来。在这里贴一点示例代码
//UrlBuilder builder = new UrlBuilder("http://www.codeproject.com/p/index.asp?catw=41");
UrlBuilder builder = new UrlBuilder();
builder.Host = "www.xxx.com";
builder.Path = "bbs";
builder.PageName = "view.aspx";
//参数多种方式参加
builder.QueryString.Add("catbb", "12345");
builder.QueryString.ContainsKey("cataa");
builder.QueryString.ContainsValue("12345");
string uri = builder.ToString();
builder.Navigate();
这个是处理类:
using System;
using System.Web;
using System.Collections.Specialized;
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namespace WebApplication3
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{
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public class UrlBuilder : UriBuilder
{
StringDictionary _queryString = null;
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
Properties#region Properties
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public StringDictionary QueryString
{
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get
{
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if(_queryString == null)
{
_queryString = new StringDictionary();
}
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return _queryString;
}
}
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public string PageName
{
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
get
{
string path = base.Path;
return path.Substring(path.LastIndexOf("/") + 1);
}
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set
{
string path = base.Path;
path = path.Substring(0, path.LastIndexOf("/"));
base.Path = string.Concat(path, "/", value);
}
}
#endregion
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Constructor overloads#region Constructor overloads
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public UrlBuilder() : base()
{
}
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public UrlBuilder(string uri) : base(uri)
{
PopulateQueryString();
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public UrlBuilder(Uri uri) : base(uri)
{
PopulateQueryString();
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public UrlBuilder(string schemeName, string hostName) : base(schemeName, hostName)
{
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public UrlBuilder(string scheme, string host, int portNumber) : base(scheme, host, portNumber)
{
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public UrlBuilder(string scheme, string host, int port, string pathValue) : base(scheme, host, port, pathValue)
{
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public UrlBuilder(string scheme, string host, int port, string path, string extraValue) : base(scheme, host, port, path, extraValue)
{
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public UrlBuilder(System.Web.UI.Page page) : base(page.Request.Url.AbsoluteUri)
{
PopulateQueryString();
}
#endregion
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Public methods#region Public methods
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public new string ToString()
{
GetQueryString();
return base.Uri.AbsoluteUri;
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void Navigate()
{
_Navigate(true);
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void Navigate(bool endResponse)
{
_Navigate(endResponse);
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
private void _Navigate(bool endResponse)
{
string uri = this.ToString();
HttpContext.Current.Response.Redirect(uri, endResponse);
}
#endregion
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
Private methods#region Private methods
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private void PopulateQueryString()
{
string query = base.Query;
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if(query == string.Empty || query == null)
{
return;
}
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if(_queryString == null)
{
_queryString = new StringDictionary();
}
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
_queryString.Clear();
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
query = query.Substring(1); //remove the ?
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
string[] pairs = query.Split(new char[]
{'&'});
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
foreach(string s in pairs)
{
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string[] pair = s.Split(new char[]
{'='});
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_queryString[pair[0]] = (pair.Length > 1) ? pair[1] : string.Empty;
}
}
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
private void GetQueryString()
{
int count = _queryString.Count;
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if(count == 0)
{
base.Query = string.Empty;
return;
}
string[] keys = new string[count];
string[] values = new string[count];
string[] pairs = new string[count];
_queryString.Keys.CopyTo(keys, 0);
_queryString.Values.CopyTo(values, 0);
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
for(int i = 0; i < count; i++)
{
pairs[i] = string.Concat(keys[i], "=", values[i]);
}
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
base.Query = string.Join("&", pairs);
}
#endregion
}
}
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)