Why number sign ignore in url? - web-services

Question

I should develop a web service with rest by jersey to parse below url:
http://localhost:8080/userApp/processMsg/request?Username=$username&LastName=$lastName&Message=$Message&SessionId=$sessionId
I used below code and worked properly:
#POST
#Path("/request")
#Produces(MediaType.APPLICATION_XML + ";charset=utf-8")
public UserResponse getUsers(#QueryParam("Username") String Username,
#QueryParam("LastName") String LastName,
#QueryParam("Message") String Message,
#QueryParam("SessionId") String SessionId
) {
// my code
}
My problem is when I there is '#' character in the url, in this case, from this character to end of the url, will be ignored. I can't make any changes to url format and # sign always exist at the end of message field.
for avoiding this, I added a filter to my web.xml, with this code:
public void doFilter(ServletRequest request, ServletResponse response, FilterChain next)
throws IOException, ServletException
{
// Respect the client-specified character encoding
// (see HTTP specification section 3.4.1)
if(null == request.getCharacterEncoding())
request.setCharacterEncoding(encoding);
/**
* Set the default response content type and encoding
*/
response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
next.doFilter(request, response);
}
but the value of request.getParameterMap() was same of the previous,and there isn't end of the url. for example when I have in url:
http://localhost:8080/userApp/processMsg/request?Username=$test&LastName=$test2&Message=$HelloWorld#&SessionId=$123456, what my application received in url, is :
http://localhost:8080/userApp/processMsg/request?Username=$test&LastName=$test2&Message=$HelloWorld
how can I handle this problem?

Answer 1

pound (#) sign is reserved character in a URL. You need to URL encode it.
http://someurl?Message=$HelloWorld%23&otherParam
http://localhost:8080/userApp/processMsg/request?Username=$test&LastName=$test2&Message=$HelloWorld%23&SessionId=$123456
the pound sign is used for "anchor".
Spaces, and other special characters all need to be URL Encoded