在页面上以消息束的形式同时抛出多个DialogMessage

com.sun.java.util.collections.ArrayList exceptions = new com.sun.java.util.collections.ArrayList();        
            exceptions = (ArrayList)pageContext.getTransientSessionValue("CuxYellowExceptions");            
            for(int i=0 ; i< exceptions.size(); i++){
                OAException message = (OAException)exceptions.get(i);
                message.setMessageType(OAException.WARNING);//设置错误类型
                pageContext.putDialogMessage(message);
            }