“21天好习惯”第一期－16

今天完成了无刷新页面登录与注册

下面看一下效果图：

package cn.edu.jxnu.web.user;

import cn.edu.jxnu.domain.UserDomain;
import com.fasterxml.jackson.databind.ObjectMapper;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

@WebServlet(name = "GetSessionUserServlet", value = "/user/getloginuser.do")
public class GetSessionUserServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        HttpSession session=request.getSession();
        UserDomain user=(UserDomain) session.getAttribute("user");
        response.setContentType("text/html; charset=UTF-8");
        PrintWriter out = response.getWriter();

        Map modelMap = new HashMap();
        if (user!=null) {
            user.setCustPwd("");
            modelMap.put("success", true);
            modelMap.put("user", user);
        }else
        {
            modelMap.put("success", false);
        }
        out.println(new ObjectMapper().writevalueAsString(modelMap));

    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }
}

package cn.edu.jxnu.web.user;

import cn.edu.jxnu.domain.UserDomain;
import cn.edu.jxnu.service.UserService;
import cn.edu.jxnu.service.impl.ImplUserService;
import cn.edu.jxnu.util.CodeUtil;
import com.fasterxml.jackson.databind.ObjectMapper;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@WebServlet(name = "RegisterServlet", value = "/user/reg.do")
public class RegisterServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String userName = request.getParameter("name");
        String password = request.getParameter("pwd");
        String email = request.getParameter("email");
        Date date = new Date();

        response.setContentType("application/json;charset=utf-8");
        PrintWriter out = response.getWriter();
        Map model = new HashMap();
        ObjectMapper objectMapper = new ObjectMapper();
        //验证码校验
        if (!CodeUtil.checkVerifyCode(request)) {
            model.put("success", false);
            model.put("errMsg", "验证码错误");
            out.println(objectMapper.writevalueAsString(model));
            return;
        }
        if (userName == null || userName.trim().equals("") ||
                email == null || email.trim().equals("") ||
                password == null || password.trim().equals("")) {
            model.put("success", false);
            model.put("errMsg", "用户名,密码，邮箱不能为空");
            out.println(objectMapper.writevalueAsString(model));
            return;
        }


        //查找该用户名是否已经被注册
        UserService userService = new ImplUserService();
        try {
            UserDomain u = userService.findUser(userName);
            if (u != null) {
                model.put("success", false);
                model.put("errMsg", "该用户名已经被注册");
                out.println(objectMapper.writevalueAsString(model));
                return;
            }
            UserDomain user = new UserDomain();
            user.setCustPwd(password);
            user.setLastLogin(date);
            user.setCustNo(userName);
            user.setEmail(email);
            int cnt = userService.insertUser(user);

            model.put("success", true);
            model.put("errMsg", "该用户注册成功");
            out.println(objectMapper.writevalueAsString(model));
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }
}

package cn.edu.jxnu.web.user;

import cn.edu.jxnu.domain.UserDomain;
import cn.edu.jxnu.service.UserService;
import cn.edu.jxnu.service.impl.ImplUserService;
import cn.edu.jxnu.util.CodeUtil;
import com.fasterxml.jackson.databind.ObjectMapper;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

@WebServlet(name = "LoginServlet", value = "/user/login.do")
public class LoginServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html; charset=UTF-8");
        PrintWriter out = response.getWriter();

        Map modelMap = new HashMap();
        String username = request.getParameter("userName");
        String pwd = request.getParameter("password");


        //调用业务处理层
        UserService userService = new ImplUserService();
        UserDomain userDomain = null;

        //验证码校验
        if (!CodeUtil.checkVerifyCode(request)) {
            modelMap.put("success", false);
            modelMap.put("errMsg", "验证码错误");
            out.println(new ObjectMapper().writevalueAsString(modelMap));
            return;
        }
        // 非空校验
        if (username == null || username.trim().equals("") || pwd == null || pwd.trim().equals("")) {
            modelMap.put("success", false);
            modelMap.put("errMsg", "用户名和密码均不能为空");
            out.println(new ObjectMapper().writevalueAsString(modelMap));
            return;
        }

        try {
            userDomain = userService.findUser(username, pwd);

            //用户名密码正确
            if (userDomain != null) {

                modelMap.put("success", true);
                request.getSession().setAttribute("user", userDomain);
            } else {
                modelMap.put("success", false);
                modelMap.put("errMsg", "用户名或密码错误");
            }

        } catch (Exception e) {
            e.printStackTrace();
            modelMap.put("success", false);
            modelMap.put("errMsg", "内部错误");
        }
        out.println(new ObjectMapper().writevalueAsString(modelMap));
    }
}