validatenicknameaction.java

模仿当当网基于struts+hierbernate与mysql的商务网站。

package org.whatisjava.dang.action;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.whatisjava.dang.service.AuthorizeService;

public class ValidateNicknameAction extends Action {
	Logger logger =Logger.getLogger(this.getClass());
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws IOException {
		logger.debug("execute....");
		String nickname = request.getParameter("nickname");
		logger.debug(nickname);
		if (nickname != null && !new AuthorizeService().isNickameExisting(nickname)) {
			logger.debug("write 1");
			response.getWriter().write("1");
		} else {
			logger.debug("write 1");
			response.getWriter().write("0");
		}
		return null;

	}
}