loginaction.java

成绩查询系统（学校期末的作业） Struts+jdbc+mysql+tomcat 开发工具为BEA WORKSHOP 功能无非就是增删查改加用户权限判断

package sfs.struts.actions;

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

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 sfs.entity.Student;
import sfs.entity.Teacher;
import sfs.entity.io.StudentIo;
import sfs.entity.io.TeacherIo;
import sfs.tools.MD5;


public class LoginAction extends Action {

	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		ActionMessages messages=new ActionMessages();
		/*======================登陆判断=======================*/
		MD5 md5=new MD5();
		String name=request.getParameter("name").trim();
		String password=request.getParameter("password").trim();
		password=md5.getMD5ofStr(password);
		System.out.println("password="+password);
		TeacherIo teio=new TeacherIo();
		Teacher te=null;
		Student st=new Student();
		StudentIo stio=new StudentIo();
		/*======================相应处理=======================*/
		if(teio.queryByLoginname(name)==null&&stio.queryByLoginname(name)==null){
			messages.add("name",new ActionMessage("error.wrong.name"));
			saveErrors(request,messages);
			return mapping.getInputForward();
		}else if(teio.queryByLoginnameAndPswd(name,password)==null&&stio.queryByLoginnameAndPswd(name,password)==null){
//			//判断密码是否正确	
			messages.add("password",new ActionMessage("error.wrong.password"));
			saveErrors(request,messages);
			return mapping.getInputForward();
		}else if(teio.queryByLoginnameAndPswd(name,password)!=null){
			String temp = "te";
			te=teio.queryByLoginnameAndPswd(name,password);
			HttpSession session=request.getSession();
			session.setAttribute("user",te);
			session.setAttribute("temp",temp);
			return mapping.findForward("mainFrame");
		}else{
			String temp = "st";
			st=stio.queryByLoginnameAndPswd(name,password);
			HttpSession session=request.getSession();
			session.setAttribute("user",st);
			session.setAttribute("temp",temp);
			session.setAttribute("number",name);
			return mapping.findForward("mainFrame");
		}

	}
}