loginaction.java

java电信经典-学习例子源代码

package netctoss.login.actions;

import global.ModuleMenu;
import global.SortToolbar;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.Vector;

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

import netctoss.dao.AdminsDAO;
import netctoss.entities.Adminroles;
import netctoss.entities.Admins;
import netctoss.entities.Modules;
import netctoss.entities.Operations;
import netctoss.entities.Rights;
import netctoss.entities.Rolerights;
import netctoss.entities.Roles;
import netctoss.entities.logic.dao.AdminDAO;
import netctoss.login.forms.LoginForm;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
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;

public class LoginAction extends Action {
	public ActionForward  execute(ActionMapping mapping,ActionForm  form,
			HttpServletRequest request,HttpServletResponse response){
		//处理业务逻辑
		//验证附加码 session中的key是img
		//验证用户,并保存用户id到session,key是adminid
		//ActionForward两个,成功到index.do,失败到login.do本身
		System.out.println("开始登录验证");
		LoginForm fm=(LoginForm)form;
		HttpSession session=request.getSession();
		Object objcode=session.getAttribute("img");
		ActionMessages  errors=new ActionMessages(); 
		if(objcode!=null && objcode.toString().equals(fm.getImgcode())){
			AdminDAO  dao=new AdminDAO();
			try{				
				int id=dao.verify(fm.getLoginname(), fm.getPassword());				
				session.setAttribute("adminid", id);
				//下面的处理部分决定用户的显示工具条模块与菜单操作选项				
				//角色列表
				AdminsDAO admins=new AdminsDAO();
				Admins admin=admins.findById(id);
				Set adminroles=admin.getAdminroles();//该管理员的角色
				//权限列表
				Set setmodules=new HashSet();//存放所有的模块实体对象//防止模块ID重复
				Iterator itroles=adminroles.iterator();
				while(itroles.hasNext()){
					Adminroles   adminrole=(Adminroles)itroles.next();
					Set rolerights=adminrole.getRoleid().getRolerights();					
					Iterator  itrolerights=rolerights.iterator();
					//模块列表
					while(itrolerights.hasNext()){
						Rolerights roleright=(Rolerights)itrolerights.next();						
						setmodules.add(roleright.getRightid().getModuleid());//添加所有模块到到Set结构
					}
				}
				//setmodules.remove(null);
				Object[] obj=setmodules.toArray();
				ModuleMenu[]  toolbar=new ModuleMenu[obj.length];
				for(int i=0;i<obj.length;i++){
					toolbar[i]=new ModuleMenu();
					toolbar[i].setId(((Modules)obj[i]).getId());
					toolbar[i].setName(((Modules)obj[i]).getName());
					toolbar[i].setUrl(((Modules)obj[i]).getUrl());
				}
				Arrays.sort(toolbar,new SortToolbar());//排序
				session.setAttribute("toolbars", toolbar);
				return mapping.findForward("gomain");//登录成功
			}
			catch(Exception e){
				//e.printStackTrace();
				errors.add("login.warning.valid",new ActionMessage("login.warning.valid"));
			}
		}
		else{
			errors.add("login.warning.imagecode",new ActionMessage("login.warning.imagecode"));
		}
		this.saveErrors(request, errors);
		return mapping.findForward("back");//登录失败
	}
}