File size: 2,660 Bytes
08aee07 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | import domain.User;
import org.apache.commons.beanutils.BeanUtils;
import service.impl.userServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
/**
* 用户登录
*/
@WebServlet("/loginServlet")
public class loginServlet extends HttpServlet {
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1、设置编码
request.setCharacterEncoding("UTF-8");
//2、获取数据
//检验验证码
String verifycode = request.getParameter("verifycode");//输入的验证码
HttpSession session = request.getSession();
String checkCode = (String) session.getAttribute("CHECKCODE_SERVER");//正确的验证码
session.removeAttribute("CHECKCODE_SERVER");//验证码是一次性的
session.removeAttribute("login_msg");//提示信息清空
if(!checkCode.equalsIgnoreCase(verifycode)){
//验证码不正确
request.setAttribute("login_msg","验证码错误！");
request.getRequestDispatcher("/login.jsp").forward(request, response);
return;
}
Map<String, String[]> map = request.getParameterMap();
//3、封装User对象
User user = new User();
try {
BeanUtils.populate(user,map);//给user的部分属性赋值
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
//4、调用Service查询
userServiceImpl service = new userServiceImpl();
User loginUser = service.login(user);
//5、判断
if (loginUser != null){
//登录成功
//将用户存入session，然后跳转页面
request.getSession().setAttribute("loginUser",loginUser);
response.sendRedirect(request.getContextPath() + "/index.jsp");
}else{
//登录失败
request.setAttribute("login_msg","用户名或者密码错误");
request.getRequestDispatcher("/login.jsp").forward(request, response);
}
}
}
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