The pageEncoding only sets the response character encoding and the charset attribute of the HTTP Content-Type header. Basically, it tells the server to decode the characters produced by JSP as UTF-8 before sending it to the client and the header tells the client to encode them using UTF-8 and also to use it when any forms in the very same page is to be submitted back to the server. The contentType already defaults to text/html, so below is sufficient:
<%@page pageEncoding="UTF-8"%>
The HTML meta tag is ignored when the page is served over HTTP. It's only been used when the page is by the client saved as a HTML file on local disk system and then opened by a file:// URI in browser.
In your particular case, the HTTP request body encoding is apparently not been set to UTF-8. The request body encoding needs to be set by ServletRequest#setCharacterEncoding() in the servlet or a filter before the first call on request.getXxx() is ever made in any servlet or filter involved in the request.
request.setCharacterEncoding("UTF-8");
String login = request.getParameter("login");
String password = request.getParameter("password");
// ...
See also:
- How to set request encoding in Tomcat?
- Why does POST not honor charset, but an AJAX request does? tomcat 6
- https://stackoverflow.com/questions/14177914/passing-turkish-char-from-form-to-java-class-with-struts2/
- Unicode - How to get the characters right?
