login2.jsp

给予OSWorkflow的工作流例子

<%@ page contentType="text/html; charset=GB2312" %>
<%@ page import="com.opensymphony.user.UserManager,
		 java.util.Collection,
		 java.util.Iterator,
                 com.opensymphony.user.EntityNotFoundException,
                 com.opensymphony.user.User,
                 com.opensymphony.user.Group"%>
<%
	String username = request.getParameter("u");
	String password = request.getParameter("p");
	String g = request.getParameter("g");
	
	UserManager um = UserManager.getInstance();
	User ExistUser=null;
	Collection users = um.getUsers();
	//判断用户是否已经存在
	for (Iterator iterator = users.iterator(); iterator.hasNext();)
	{
		User user = (User) iterator.next();
		if(user.getName().equals(username)){
			ExistUser=user;
			break;
		}
	}
    	if(ExistUser==null){//用户不存在	
		User loginuser = um.createUser(username);
		loginuser.setPassword(password);
		
		Collection groups = um.getGroups();
		//boolean bAdd=false;
		Group logingroup=null;
		//判断组是否存在
		for (Iterator iterator = groups.iterator(); iterator.hasNext();)
		{
			Group group = (Group) iterator.next();
			if(group.getName().equals(g)){
				//bAdd=true;
				logingroup = group;
				break;
			}
		}
		if(logingroup==null)   logingroup = um.createGroup(g);
		loginuser.addToGroup(logingroup);
		
		session.setAttribute("username", username);
		response.sendRedirect("nav.jsp?un="+username);
    	}
   	else {//用户已存
   		//如果密码正确，并且是输入组的成员
	    	if((ExistUser.authenticate(password)) && (ExistUser.inGroup(g))) {
		    session.setAttribute("username", username);
		    response.sendRedirect("nav.jsp?un="+username);
	    	}
	    	else
	    	    response.sendRedirect("default.jsp?auth_failed=true");
   	 }

%>