用户登录信息存session

UserInfoHolder --也可以换成user

/**
 *登录页----用户登录
 * */
//@ACL
@PostMapping("/userLogin")
public BaseResponse userLogin(@RequestBody User user, HttpServletRequest request) {
    BaseResponse response = new BaseResponse();
    String value = null;
    try{
        if(user!=null){
            //判断是否存在，是否是管理员
            List<User> ls = userService.isexist(user.getUserid());
            if(ls.size()>0){
              User userDt = userService.check(user.getUserid(),user.getPassword());
              if(userDt!=null){
                  UserRole role =  roleService.astrict(user.getUserid());
                  if(role!=null){
                      // 检验密码
                      if (!userDt.getPassword().equals(user.getPassword())) {
                          response.setErrorMsg("用户名密码不匹配!");
                          response.setSuccess(false);
                          response.setErrorCode(ErrorCode.WRONG_USERNAME_OR_PASSWORD.getCode());
                      }else{
                          // 检验密码
                          if (!userDt.getPassword().equals(user.getPassword())) {
                              response.setErrorMsg("用户名密码不匹配!");
                              response.setSuccess(false);
                              response.setErrorCode(ErrorCode.WRONG_USERNAME_OR_PASSWORD.getCode());
                          } else {
                              Cookie[] cookies = request.getCookies();
                              if (cookies != null) {
                                  for (Cookie cookie : cookies) {
                                      String name = cookie.getName();
                                      if (cookie.getName().equals("verid")) {
                                          value = cookie.getValue();
                                      }
                                  }
                              }
                              if (value == null) {
                                  response.setErrorCode(ErrorCode.OUT_PASSCODE.getCode());
                                  response.setErrorMsg(ErrorCode.OUT_PASSCODE.getDesc());
                              } else {
                                  Boolean key = redisTemplate.hasKey(value);
                                  //判断图片验证码是否存在
                                  if (key) {
                                      //String codeValue = (String) request.getSession().getAttribute("verid");
                                      String codeValue = redisTemplate.opsForValue().get(value).toString();
                                      if (codeValue.equalsIgnoreCase(user.getLoginCode())) {
                                          UserInfoHolder userInfo = new UserInfoHolder();
                                          userInfo.setUserid(user.getUserid());
                                          userInfo.setPassword(user.getPassword());
                                          request.getSession().setAttribute("user",userInfo);   //session里面必须存放序列化后的user
                                          UserInfoHolder userD = (UserInfoHolder) request.getSession().getAttribute("user");
                                          userD.setUserid(user.getUserid());
                                          userD.setUsername(user.getUsername());
                                          response.setData(role.getFlag());     //返回那种登录人员的用户类型....管理员类型A,B,C
                                          response.setSuccess(true);
                                      } else {
                                          response.setSuccess(false);
                                          response.setErrorMsg(ErrorCode.VALIDATION_CODE_ERROR.getDesc());
                                      }
                                  }
                              }
                          }
                      }
                  }else{
                      response.setSuccess(false);
                      response.setErrorMsg(ErrorCode.LOGIN_GRADE_LACK.getDesc());
                  }
              }else{
                  response.setSuccess(false);
                  response.setErrorMsg(ErrorCode.USER_PASSWORD_ERROR.getDesc());
              }
            }else{
                response.setSuccess(false);
                response.setErrorMsg(ErrorCode.USER_ISEXIST.getDesc());
            }
        }else{
            response.setSuccess(false);
            response.setErrorMsg(ErrorCode.USER_ERROR.getDesc());
        }
    }catch (Exception e){
        logger.info("e=="+e);
        response.setErrorMsg(ErrorCode.SYSTEM_ERROR.getDesc());
    }
    return response;
}

/*
** 登录页--验证码图片存cook，前端直接调
*/

@GetMapping("/getVerify")
public void   getVerify(HttpServletRequest request, HttpServletResponse response)  throws ServletException, IOException {
    Object[] objs = VerifyUtil.createImage();
    String code = objs[0].toString();

    //生成唯一的序列id
    String verid = UUID.randomUUID().toString().replaceAll("-", "");
    //将uuid串存入cookie
    Cookie cookie = new Cookie(VERIFY_ID, verid);

    response.addCookie(cookie);
    StringBuilder verifyKey = new StringBuilder();
    verifyKey.append(verid);

    //将验证码存入redis
    redisTemplate.opsForValue().set(verifyKey.toString(),code,5, TimeUnit.MINUTES);
    logger.info("获取到的"+verifyKey.toString()+"图形验证码=="+redisTemplate.opsForValue().get(verifyKey.toString()).toString());

    BufferedImage image = (BufferedImage) objs[1];
    response.setContentType("image/png");
    OutputStream os = response.getOutputStream();
    //输出验证码图片文件流
    ImageIO.write(image, "png", os);
}




//下面的自己画的验证码图片

package com.yundaex.secretariat.util;

import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Random;

public class VerifyUtil {
    // 验证码字符集
    private static final char[] chars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E',
            'F', 'G', 'H',  'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' };
    // 字符数量
    private static final int SIZE = 6;
    // 干扰线数量
    private static final int LINES = 10;
    // 宽度
    private static final int WIDTH = 120;
    // 高度
    private static final int HEIGHT = 40;
    // 字体大小
    private static final int FONT_SIZE = 30;

    /**
     * 生成随机验证码及图片 Object[0]：验证码字符串； Object[1]：验证码图片。
     */
    public static Object[] createImage() {
        StringBuffer sb = new StringBuffer();
        // 1.创建空白图片
        BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
        // 2.获取图片画笔
        Graphics graphic = image.getGraphics();
        // 3.设置画笔颜色
        graphic.setColor(Color.LIGHT_GRAY);
        // 4.绘制矩形背景
        graphic.fillRect(0, 0, WIDTH, HEIGHT);
        // 5.画随机字符
        Random ran = new Random();
        for (int i = 0; i < SIZE; i++) {
            // 取随机字符索引
            int n = ran.nextInt(chars.length);
            // 设置随机颜色
            // graphic.setColor(getRandomColor(101, 111, 121));
            graphic.setColor(getRandomColor(150, 150, 150));
            // 设置字体大小
            graphic.setFont(new Font(null, Font.BOLD + Font.ITALIC, FONT_SIZE));
            // 画字符
            graphic.drawString(chars[n] + "", i * WIDTH / SIZE, HEIGHT * 2 / 3);
            // 记录字符
            sb.append(chars[n]);
        }
        // 6.画干扰线
        for (int i = 0; i < LINES; i++) {
            // 设置随机颜色
            graphic.setColor(getRandomColor(255, 255, 255));
            // 随机画线
            graphic.drawLine(ran.nextInt(WIDTH), ran.nextInt(HEIGHT), ran.nextInt(WIDTH), ran.nextInt(HEIGHT));
        }

        /**
         * //扭曲
         shearX(graphic, WIDTH, HEIGHT, Color.LIGHT_GRAY);
         shearY(graphic, WIDTH, HEIGHT, Color.LIGHT_GRAY);
         */

        // 7.返回验证码和图片

        return new Object[] { sb.toString(), image };
    }


    /**
     * 随机取色
     */
    public static Color getRandomColor(int r, int g, int b) {
        Random ran = new Random();
        Color color = new Color(ran.nextInt(r), ran.nextInt(g), ran.nextInt(b));
        return color;
    }
    /**
     * fc:110 bc:133
     * @param fc
     * @param bc
     * @return
     */
    public static Color getRandColor(int fc, int bc) {
        if (fc > 255){
            fc = 255;
        }
        if (bc > 255){
            bc = 255;
        }
        Random random = new Random();
        int r = fc + random.nextInt(bc - fc - 16);
        int g = fc + random.nextInt(bc - fc - 14);
        int b = fc + random.nextInt(bc - fc - 18);
        return new Color(r, g, b);
    }

    private static void shearX(Graphics g, int w1, int h1, Color color) {
        Random random=new Random();
        int period = 2;

        boolean borderGap = true;
        int frames = 1;
        int phase = random.nextInt(2);

        for (int i = 0; i < h1; i++) {
            double d = (double) (period >> 1)* Math.sin((double) i / (double) period + (2.2831853071795862D * (double) phase)/ (double) frames);
            g.copyArea(0, i, w1, 1, (int) d, 0);
            if (borderGap) {
                g.setColor(color);
                g.drawLine((int) d, i, 0, i);
                g.drawLine((int) d + w1, i, w1, i);
            }
        }

    }

    private static void shearY(Graphics g, int w1, int h1, Color color) {
        Random random=new Random();
        int period = random.nextInt(40) + 10; // 50;

        boolean borderGap = true;
        int frames = 20;
        int phase = random.nextInt(2);
        for (int i = 0; i < w1; i++) {
            double d = (double) (period >> 1)
                    * Math.sin((double) i / (double) period
                    + (2.2831853071795862D * (double) phase)/ (double) frames);
            g.copyArea(i, 0, 1, h1, 0, (int) d);
            if (borderGap) {
                g.setColor(color);
                g.drawLine(i, (int) d, i, 0);
                g.drawLine(i, (int) d + h1, i, h1);
            }

        }

    }



}