C# HttpUtility.ParseQueryString的可移植类库(PCL)版本
System.Web中是否包含HttpUtility.ParseQueryString的可移植类库(PCL)版本或我可以使用的代码?我想读取一个非常复杂的URL。C# HttpUtility.ParseQueryString的可移植类库(PCL)版本,c#,asp.net,.net,portable-class-library,system.web,C#,Asp.net,.net,Portable Class Library,System.web,System.Web中是否包含HttpUtility.ParseQueryString的可移植类库(PCL)版本或我可以使用的代码?我想读取一个非常复杂的URL。HttpUtility.ParseQueryString返回从NameValueCollection继承的HttpValueCollection(内部类)NameValueCollection是键值对的集合,类似于字典,但它支持重复项,维护顺序,并且只实现IEnumerable(此集合是预泛型)名称值集合 我的解决方案(部分从.NET
HttpUtility.ParseQueryString
返回从NameValueCollection
继承的HttpValueCollection
(内部类)NameValueCollection
是键值对的集合,类似于字典,但它支持重复项,维护顺序,并且只实现IEnumerable
(此集合是预泛型)Collection
,其中HttpValue
只是一个键值对
public sealed class HttpUtility
{
public static HttpValueCollection ParseQueryString(string query)
{
if (query == null)
{
throw new ArgumentNullException("query");
}
if ((query.Length > 0) && (query[0] == '?'))
{
query = query.Substring(1);
}
return new HttpValueCollection(query, true);
}
}
public sealed class HttpValue
{
public HttpValue()
{
}
public HttpValue(string key, string value)
{
this.Key = key;
this.Value = value;
}
public string Key { get; set; }
public string Value { get; set; }
}
public class HttpValueCollection : Collection<HttpValue>
{
#region Constructors
public HttpValueCollection()
{
}
public HttpValueCollection(string query)
: this(query, true)
{
}
public HttpValueCollection(string query, bool urlencoded)
{
if (!string.IsNullOrEmpty(query))
{
this.FillFromString(query, urlencoded);
}
}
#endregion
#region Parameters
public string this[string key]
{
get { return this.First(x => string.Equals(x.Key, key, StringComparison.OrdinalIgnoreCase)).Value; }
set { this.First(x => string.Equals(x.Key, key, StringComparison.OrdinalIgnoreCase)).Value = value; }
}
#endregion
#region Public Methods
public void Add(string key, string value)
{
this.Add(new HttpValue(key, value));
}
public bool ContainsKey(string key)
{
return this.Any(x => string.Equals(x.Key, key, StringComparison.OrdinalIgnoreCase));
}
public string[] GetValues(string key)
{
return this.Where(x => string.Equals(x.Key, key, StringComparison.OrdinalIgnoreCase)).Select(x => x.Value).ToArray();
}
public void Remove(string key)
{
this.Where(x => string.Equals(x.Key, key, StringComparison.OrdinalIgnoreCase))
.ToList()
.ForEach(x => this.Remove(x));
}
public override string ToString()
{
return this.ToString(true);
}
public virtual string ToString(bool urlencoded)
{
return this.ToString(urlencoded, null);
}
public virtual string ToString(bool urlencoded, IDictionary excludeKeys)
{
if (this.Count == 0)
{
return string.Empty;
}
StringBuilder stringBuilder = new StringBuilder();
foreach (HttpValue item in this)
{
string key = item.Key;
if ((excludeKeys == null) || !excludeKeys.Contains(key))
{
string value = item.Value;
if (urlencoded)
{
// If .NET 4.5 and above (Thanks @Paya)
key = WebUtility.UrlDecode(key);
// If .NET 4.0 use this instead.
// key = Uri.EscapeDataString(key);
}
if (stringBuilder.Length > 0)
{
stringBuilder.Append('&');
}
stringBuilder.Append((key != null) ? (key + "=") : string.Empty);
if ((value != null) && (value.Length > 0))
{
if (urlencoded)
{
value = Uri.EscapeDataString(value);
}
stringBuilder.Append(value);
}
}
}
return stringBuilder.ToString();
}
#endregion
#region Private Methods
private void FillFromString(string query, bool urlencoded)
{
int num = (query != null) ? query.Length : 0;
for (int i = 0; i < num; i++)
{
int startIndex = i;
int num4 = -1;
while (i < num)
{
char ch = query[i];
if (ch == '=')
{
if (num4 < 0)
{
num4 = i;
}
}
else if (ch == '&')
{
break;
}
i++;
}
string str = null;
string str2 = null;
if (num4 >= 0)
{
str = query.Substring(startIndex, num4 - startIndex);
str2 = query.Substring(num4 + 1, (i - num4) - 1);
}
else
{
str2 = query.Substring(startIndex, i - startIndex);
}
if (urlencoded)
{
this.Add(Uri.UnescapeDataString(str), Uri.UnescapeDataString(str2));
}
else
{
this.Add(str, str2);
}
if ((i == (num - 1)) && (query[i] == '&'))
{
this.Add(null, string.Empty);
}
}
}
#endregion
}
公共密封类HttpUtility
{
公共静态HttpValueCollection ParseQueryString(字符串查询)
{
if(查询==null)
{
抛出新的ArgumentNullException(“查询”);
}
如果((query.Length>0)和&(query[0]=='?'))
{
query=query.Substring(1);
}
返回新的HttpValueCollection(查询,true);
}
}
公共密封类HttpValue
{
公共HttpValue()
{
}
公共HttpValue(字符串键、字符串值)
{
这个。键=键;
这个。值=值;
}
公共字符串密钥{get;set;}
公共字符串值{get;set;}
}
公共类HttpValueCollection:集合
{
#区域构造函数
公共HttpValueCollection()
{
}
公共HttpValueCollection(字符串查询)
:this(查询,true)
{
}
公共HttpValueCollection(字符串查询,boolUrlEncoded)
{
如果(!string.IsNullOrEmpty(查询))
{
this.FillFromString(查询,urlencoded);
}
}
#端区
#区域参数
公共字符串此[字符串键]
{
获取{返回this.First(x=>string.Equals(x.Key,Key,StringComparison.OrdinalIgnoreCase)).Value;}
设置{this.First(x=>string.Equals(x.Key,Key,StringComparison.OrdinalIgnoreCase)).Value=Value;}
}
#端区
#区域公共方法
公共void添加(字符串键、字符串值)
{
添加(新的HttpValue(key,value));
}
公共bool ContainsKey(字符串键)
{
返回这个.Any(x=>string.Equals(x.Key,Key,StringComparison.OrdinalIgnoreCase));
}
公共字符串[]获取值(字符串键)
{
返回这个.Where(x=>string.Equals(x.Key,Key,StringComparison.OrdinalIgnoreCase)).Select(x=>x.Value.ToArray();
}
公共无效删除(字符串键)
{
其中(x=>string.Equals(x.Key,Key,StringComparison.OrdinalIgnoreCase))
托利斯先生()
.ForEach(x=>this.Remove(x));
}
公共重写字符串ToString()
{
返回此.ToString(true);
}
公共虚拟字符串ToString(bool-urlencoded)
{
返回此.ToString(urlencoded,null);
}
公共虚拟字符串到字符串(bool urlencoded,IDictionary excludeKeys)
{
如果(this.Count==0)
{
返回字符串。空;
}
StringBuilder StringBuilder=新的StringBuilder();
foreach(本文件中的HttpValue项)
{
字符串键=item.key;
如果((excludeKeys==null)| |!excludeKeys.Contains(key))
{
字符串值=item.value;
如果(URL编码)
{
//如果.NET 4.5及以上版本(谢谢@Paya)
key=WebUtility.UrlDecode(key);
//如果使用.NET4.0,请改用此选项。
//key=Uri.EscapeDataString(key);
}
如果(stringBuilder.Length>0)
{
stringBuilder.Append('&');
}
stringBuilder.Append((key!=null)?(key+“=”):string.Empty);
如果((value!=null)&&(value.Length>0))
{
如果(URL编码)
{
value=Uri.EscapeDataString(值);
}
stringBuilder.Append(值);
}
}
}
返回stringBuilder.ToString();
}
#端区
#区域私有方法
私有void FillFromString(字符串查询,bool-urlencoded)
{
int num=(查询!=null)?查询。长度:0;
for(int i=0;i=0)
{
str=query.Substring(startIndex,num4-startIndex);
str2=query.Substring(num4+1,(i-num4)-1);
}
其他的
{
str2=query.Substring(startIndex,i-startIndex);
}
如果(URL编码)
{
Add(Uri.unescapedastring(str),Uri.unescapedastring(str2));
}
其他的
{
添加(str,str2);
}
if((i==(num-1))&&(查询[i]='&'))
{
this.Add(null,string.Empty);
}
}
}
#端区
}
更新
更新后,HttpValueCollection现在继承自集合,而不是注释中突出显示的列表
更新2
更新为使用WebUtili
public static class HttpUtility
{
public static Dictionary<string, string> ParseQueryString(Uri uri)
{
var query = uri.Query.Substring(uri.Query.IndexOf('?') + 1); // +1 for skipping '?'
var pairs = query.Split('&');
return pairs
.Select(o => o.Split('='))
.Where(items => items.Count() == 2)
.ToDictionary(pair => Uri.UnescapeDataString(pair[0]),
pair => Uri.UnescapeDataString(pair[1]));
}
}
public class HttpParseQueryValuesTests
{
[TestCase("http://www.example.com", 0, "", "")]
[TestCase("http://www.example.com?query=value", 1, "query", "value")]
public void When_parsing_http_query_then_should_have_these_values(string uri, int expectedParamCount,
string expectedKey, string expectedValue)
{
var queryParams = HttpUtility.ParseQueryString(new Uri(uri));
queryParams.Count.Should().Be(expectedParamCount);
if (queryParams.Count > 0)
queryParams[expectedKey].Should().Be(expectedValue);
}
}
using Flurl;
var url = new Url("http://...");
// get values from url.QueryParams dictionary