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);
}

}

}



}
原文地址:https://www.cnblogs.com/Darkqueen/p/14808832.html