linkaddcontroller.java

一个不错的bbs论坛系统．对初学者很有帮助

package com.yhbbs.admin.web.sys;

import java.util.HashMap;
import java.util.Map;

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

import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;

import com.yhbbs.admin.web.sys.form.LinkAddForm;
import com.yhbbs.bbs.biz.LinkBiz;
import com.yhbbs.bbs.itface.Link;
import com.yhbbs.utils.ReqUtils;
/**
 * <p>Title:友情链接修改Controller</p>
 * <li>	友情链接修改
 * <br><b>WebSite: www.yyhweb.com</b>
 * <br><b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YHBBS-2.0
 */
public class linkAddController extends  SimpleFormController{

	// 构造函数设置其属性
	public linkAddController(){
		this.setSessionForm(true);
		this.setValidateOnBinding(false);
		this.setCommandName("linkForm");
		this.setFormView("linkadd");
	}

	// 取得表单
	protected Object formBackingObject(HttpServletRequest request) throws Exception {
		int linkId = ReqUtils.getInt(request, "lId");
		if(linkId>0){
			Link link = LinkBiz.getLinkById(linkId);
			return new LinkAddForm(link);
		}else
			return new LinkAddForm();
	}

	// 表单提交
	protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command,BindException errors){
		Map<String, String> model = new HashMap<String, String>();
		LinkAddForm linkForm = (LinkAddForm)command;
		Link link = linkForm.getLink();
		int linkId = link.getId();
		boolean flag = false;
		if(linkId>0)
			flag = LinkBiz.updateLink(link);
		else
			flag = LinkBiz.addLink(link);
		
		if(flag){
			if(linkId>0)
				model.put("okinfo", "修改链接");
			else
				model.put("okinfo", "增加链接");
			model.put("forward", "<a href='../admin/linkMag.do'>链接管理</a>");
			return new ModelAndView("success",model);
		}else{
			if(linkId>0)
				model.put("errinfo", "修改链接");
			else
				model.put("errinfo", "增加链接");
			model.put("forward", "<a href='#' onclick='javascript:history.go(-1)'>返回</a>");
			return new ModelAndView("failure",model);
		}
	}
}