usershow.java

一个不错的bbs论坛系统．对初学者很有帮助

package com.yhbbs.user.action;

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

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.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import com.yhbbs.user.biz.UserBiz;
import com.yhbbs.user.biz.UserLevelBiz;
import com.yhbbs.user.itface.bean.User;
import com.yhbbs.user.itface.bean.UserSession;
import com.yhbbs.user.online.Postion;
import com.yhbbs.utils.Constants;
import com.yhbbs.utils.ReqUtils;

/**
 * <p>Title:显示用户信息Action</p>
 * <br>跳转到显示用户页面
 * <br><b>WebSite: www.yyhweb.com</b>
 * <br><b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YHBBS-2.0
 */
public class UserShow extends Action {
	public ActionForward execute(ActionMapping mapping,ActionForm form,
			  HttpServletRequest request,HttpServletResponse response) {
		Postion.ChangPost(request,"浏览用户信息");
		ActionMessages errors = new ActionMessages();
		UserSession bbsuser = (UserSession) request.getSession(true).getAttribute(Constants.bbsuser);
		int userId = ReqUtils.getInt(request,"uId");
		User user = UserBiz.getUser(userId);
		if(user==null){
			errors.add("user.info.no.user",new ActionMessage("user.info.no.user"));
			saveErrors(request,errors);
			return mapping.findForward("Failure");
		}
		String	userName = user.getUsername();
		String	image = user.getImage();
		String	url = user.getImageurl();
   	 	int	w = user.getImagewidth();
   	 	int	h = user.getImageheight();
   	 	
		request.setAttribute("image",getImage(image,url,w,h));
		request.setAttribute("usergrade",UserLevelBiz.getGradeName(user.getGrade(),user.getUsertype()));
		request.setAttribute("uId",userId);
		request.setAttribute("username",userName);
		request.setAttribute("curuser",user);
		request.setAttribute("bbsuser",bbsuser);
		return mapping.findForward("Success");
	}
	private String getImage(String image,String url,int w,int h){
		StringBuffer sb = new StringBuffer();
		String str = "";
		sb.append("<img src=");
		if(url!=null && url.length()>1){
			if(url.indexOf("http://")==-1){
				sb.append(Constants.userimgpath+url);
			}else{
				sb.append(url);
			}
			sb.append(" width="+w+" height="+h);
		}else{
			sb.append("webapp/images/avatars/"+image);
		}
		sb.append(" border=0>");
		str = sb.toString();
		sb = null;
		return str;
	}
}