[英]URL Encoding in c# and Asp.net web api
I have an ASP.NET web api
that receives web requests and returns Json
data. 我有一个
ASP.NET web api
,它接收Web请求并返回Json
数据。
browsing to this URL: 浏览到此网址:
http://1.2.3.4/api1/api/values/mypartname
will return the following json string: http://1.2.3.4/api1/api/values/mypartname
将返回以下json字符串:
{
\"PartName\": \"mypartname\",
\"PartDes\": \"53.6X53.6APA/ALIM1NOTPAK\",
\"PartLocation\": \"A36\"
}
but when sending a part name that contains spaces or quotes like this: http://1.2.3.4/api1/api/values/my part na"me
i get a 404 - File or directory not found.
error. 但是当发送包含这样的空格或引号的零件名称时:
http://1.2.3.4/api1/api/values/my part na"me
: http://1.2.3.4/api1/api/values/my part na"me
得到404 - File or directory not found.
错误。
I'm consuming the json
with a .NET 4 Console application
like so: 我正在使用
.NET 4 Console application
使用json
:
static void Main(string[] args)
{
try
{
string partName = "TAPE 56 3M 3/4\"";
WebRequest wr = WebRequest.Create("http://1.2.3.4/api1/api/values/" +
HttpUtility.UrlEncode(partName));
wr.Credentials = CredentialCache.DefaultCredentials;
HttpWebResponse hwr = (HttpWebResponse)wr.GetResponse();
Stream dataStream = hwr.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string json = reader.ReadToEnd();
//some json parsing function
des(json);
reader.Close();
dataStream.Close();
hwr.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Console.ReadKey();
}
}
the exception is thrown at this line: HttpWebResponse hwr = (HttpWebResponse)wr.GetResponse();
在这一行抛出异常:
HttpWebResponse hwr = (HttpWebResponse)wr.GetResponse();
and the exception message is: The remote server returned an error: (404) Not Found.
并且异常消息是:
The remote server returned an error: (404) Not Found.
Am i doing something wrong with the mypartname
? 我对
mypartname
做错了吗? I also tried to manually replace the problematic characters according to this: HTML URL Encoding Reference and using this function: Uri.EscapeDataString(partName)
but with no luck. 我还尝试根据以下内容手动替换有问题的字符: HTML URL编码参考并使用此函数:
Uri.EscapeDataString(partName)
但没有运气。
EDIT 编辑
this is the routeConfig definition: 这是routeConfig定义:
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
and the api GET method: 和api GET方法:
// GET api/values/5
public string Get(string id)
{
List<dummy> dummies = new List<dummy>();
string con = "user id=sa;" +
"password=1234" +
"server=someServer\\someInstance;" +
"database=game; " +
"connection timeout=30";
//SqlConnection sqlConn = new SqlConnection(con);
using (SqlConnection sqlconn = new SqlConnection(con))
{
sqlconn.Open();
StringBuilder sb = new StringBuilder();
sb.Append("SELECT PART.PARTNAME,PART.PARTDES, PARTPARAMA.LOCATION ");
sb.Append("FROM PART LEFT JOIN PARTPARAMA ");
sb.Append("ON PART.PART = PARTPARAMA.PARTPARAM ");
sb.Append("WHERE PART.PARTNAME = @part");
using (SqlCommand cmd = new SqlCommand(sb.ToString(), sqlconn))
{
cmd.Parameters.AddWithValue("part", id);
SqlDataReader sdr = cmd.ExecuteReader();
while (sdr.Read())
{
dummies.Add(new dummy
{
PartName = sdr.IsDBNull(0) ? "Unknown" : sdr.GetString(0),
PartDes = sdr.IsDBNull(1) ? "Unknown" : sdr.GetString(1),
PartLocation = sdr.IsDBNull(2) ? "Unknown" : sdr.GetString(2)
});
}
}
}
if (dummies.Count() > 0)
{
string json = JsonConvert.SerializeObject(dummies[0]);
return json;
}
else
{
string json = JsonConvert.SerializeObject(null);
return json;
}
EDIT 10 Apr 2015: 2015年4月10日编辑 :
I am leaving this answer here for anyone who finds it in a search, however as Kevin states below and Scott Hanselman says here : 对于在搜索中发现它的人,我在这里留下这个答案,但凯文在下面说道 , Scott Hanselman在这里说 :
[UrlPathEncode] doesn't do what you think it does ... This method was very specific, poorly named, and is now totally obsolete.
[UrlPathEncode]不会按照您的想法执行此操作...此方法非常具体,命名不佳,现在已完全过时。
I think your problem has more to do with the forward slash in the part name. 我认为你的问题更多地与部件名称中的正斜杠有关。 You can handle the spaces and quotes using
您可以使用处理空格和引号
HttpUtility.UrlPathEncode(partName)
instead of HttpUtility.UrlEncode(partName)
. 而不是
HttpUtility.UrlEncode(partName)
。
Handling the forward slash is more problematic. 处理正斜杠更成问题。 See this post for more details.
有关详细信息,请参阅此帖子 。
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