package com.xuda.springboot.utils;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.Random;
/**
 * @author ：程序员徐大大
 * @description：TODO
 * @date ：2022-03-20 19:42
 */
public class VerifyCodeUtils {
    //使用到Algerian字体，系统里没有的话需要安装字体，字体只显示大写，去掉了1,0,i,o几个容易混淆的字符
    public static final String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ";
    private static Random random = new Random();
    /**
     * 使用系统默认字符源生成验证码
     * @param verifySize    验证码长度
     * @return
     */
    public static String generateVerifyCode(int verifySize){
        return generateVerifyCode(verifySize, VERIFY_CODES);
    }
     * 使用指定源生成验证码
     * @param sources   验证码字符源
    public static String generateVerifyCode(int verifySize, String sources){
        if(sources == null || sources.length() == 0){
            sources = VERIFY_CODES;
        }
        int codesLen = sources.length();
        Random rand = new Random(System.currentTimeMillis());
        StringBuilder verifyCode = new StringBuilder(verifySize);
        for(int i = 0; i < verifySize; i++){
            verifyCode.append(sources.charAt(rand.nextInt(codesLen-1)));
        return verifyCode.toString();
     * 生成随机验证码文件,并返回验证码值
     * @param w
     * @param h
     * @param outputFile
     * @param verifySize
     * @throws IOException
    public static String outputVerifyImage(int w, int h, File outputFile, int verifySize) throws IOException {
        String verifyCode = generateVerifyCode(verifySize);
        outputImage(w, h, outputFile, verifyCode);
        return verifyCode;
     * 输出随机验证码图片流,并返回验证码值
     * @param os
    public static String outputVerifyImage(int w, int h, OutputStream os, int verifySize) throws IOException{
        outputImage(w, h, os, verifyCode);
     * 生成指定验证码图像文件
     * @param code
    public static void outputImage(int w, int h, File outputFile, String code) throws IOException{
        if(outputFile == null){
            return;
        File dir = outputFile.getParentFile();
        if(!dir.exists()){
            dir.mkdirs();
        try{
            outputFile.createNewFile();
            FileOutputStream fos = new FileOutputStream(outputFile);
            outputImage(w, h, fos, code);
            fos.close();
        } catch(IOException e){
            throw e;
     * 输出指定验证码图片流
    public static void outputImage(int w, int h, OutputStream os, String code) throws IOException{
        int verifySize = code.length();
        BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        Random rand = new Random();
        Graphics2D g2 = image.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
        Color[] colors = new Color[5];
        Color[] colorSpaces = new Color[] { Color.WHITE, Color.CYAN,
                Color.GRAY, Color.LIGHT_GRAY, Color.MAGENTA, Color.ORANGE,
                Color.PINK, Color.YELLOW };
        float[] fractions = new float[colors.length];
        for(int i = 0; i < colors.length; i++){
            colors[i] = colorSpaces[rand.nextInt(colorSpaces.length)];
            fractions[i] = rand.nextFloat();
        Arrays.sort(fractions);
        g2.setColor(Color.GRAY);// 设置边框色
        g2.fillRect(0, 0, w, h);
        Color c = getRandColor(200, 250);
        g2.setColor(c);// 设置背景色
        g2.fillRect(0, 2, w, h-4);
        //绘制干扰线
        Random random = new Random();
        g2.setColor(getRandColor(160, 200));// 设置线条的颜色
        for (int i = 0; i < 20; i++) {
            int x = random.nextInt(w - 1);
            int y = random.nextInt(h - 1);
            int xl = random.nextInt(6) + 1;
            int yl = random.nextInt(12) + 1;
            g2.drawLine(x, y, x + xl + 40, y + yl + 20);
        // 添加噪点
        float yawpRate = 0.05f;// 噪声率
        int area = (int) (yawpRate * w * h);
        for (int i = 0; i < area; i++) {
            int x = random.nextInt(w);
            int y = random.nextInt(h);
            int rgb = getRandomIntColor();
            image.setRGB(x, y, rgb);
        shear(g2, w, h, c);// 使图片扭曲
        g2.setColor(getRandColor(100, 160));
        int fontSize = h-4;
        Font font = new Font("Algerian", Font.ITALIC, fontSize);
        g2.setFont(font);
        char[] chars = code.toCharArray();
            AffineTransform affine = new AffineTransform();
            affine.setToRotation(Math.PI / 4 * rand.nextDouble() * (rand.nextBoolean() ? 1 : -1), (w / verifySize) * i + fontSize/2, h/2);
            g2.setTransform(affine);
            g2.drawChars(chars, i, 1, ((w-10) / verifySize) * i + 5, h/2 + fontSize/2 - 10);
        g2.dispose();
        ImageIO.write(image, "jpg", os);
    private static Color getRandColor(int fc, int bc) {
        if (fc > 255)
            fc = 255;
        if (bc > 255)
            bc = 255;
        int r = fc + random.nextInt(bc - fc);
        int g = fc + random.nextInt(bc - fc);
        int b = fc + random.nextInt(bc - fc);
        return new Color(r, g, b);
    private static int getRandomIntColor() {
        int[] rgb = getRandomRgb();
        int color = 0;
        for (int c : rgb) {
            color = color << 8;
            color = color | c;
        return color;
    private static int[] getRandomRgb() {
        int[] rgb = new int[3];
        for (int i = 0; i < 3; i++) {
            rgb[i] = random.nextInt(255);
        return rgb;
    private static void shear(Graphics g, int w1, int h1, Color color) {
        shearX(g, w1, h1, color);
        shearY(g, w1, h1, color);
    private static void shearX(Graphics g, int w1, int h1, Color color) {
        int period = random.nextInt(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
                    + (6.2831853071795862D * (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) {
        int period = random.nextInt(40) + 10; // 50;
        int frames = 20;
        int phase = 7;
        for (int i = 0; i < w1; i++) {
            g.copyArea(i, 0, 1, h1, 0, (int) d);
                g.drawLine(i, (int) d, i, 0);
                g.drawLine(i, (int) d + h1, i, h1);
}

package com.xuda.springboot.controller;

import com.xuda.springboot.pojo.User;
import com.xuda.springboot.service.UserService;
import com.xuda.springboot.utils.VerifyCodeUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
/**
 * @author ：程序员徐大大
 * @description：TODO
 * @date ：2022-03-20 20:06
 */
@Controller
@RequestMapping(value = "user")
public class UserController {
    //日志
    private static final Logger log = LoggerFactory.getLogger(UserController.class);
    private UserService userService;
    @Autowired
    public UserController(UserService userService) {
        this.userService = userService;
    }
    @RequestMapping(value = "/generateImageCode")
    public void generateImageCode(HttpSession session,HttpServletResponse response) throws IOException {
        //随机生成四位随机数
        String code = VerifyCodeUtils.generateVerifyCode(4);
        //保存到session域中
        session.setAttribute("code",code);
        //根据随机数生成图片，reqponse响应图片
        response.setContentType("image/png");
        ServletOutputStream os = response.getOutputStream();
        VerifyCodeUtils.outputImage(130,60,os,code);
    /*
    用户注册
     */
    @RequestMapping(value = "/register")
    public String register(User user, String code, HttpSession session, Model model){
        log.debug("用户名：{}，真实姓名：{},密码：{},性别：{},",user.getUsername(),user.getRealname(),user.getPassword(),user.getGender());
        log.debug("用户输入的验证码：{}",code);
        try{
            //判断用户输入验证码和session中的验证码是否一样
            String sessioncode = session.getAttribute("code").toString();
           if(!sessioncode.equalsIgnoreCase(code)) {
               throw new RuntimeException("验证码输入错误");
           }
            //注册用户
            userService.register(user);
        }catch (RuntimeException e){
            e.printStackTrace();
            return "redirect:/register";//注册失败返回注册页面
        }
        return  "redirect:/login"; //注册成功跳转到登录页面
    /**
     * 用户登录
    @RequestMapping(value = "login")
    public String login(String username,String password,HttpSession session){
        log.info("本次登录用户名：{}",username);
        log.info("本次登录密码：{}",password);
        try {
            //调用业务层进行登录
            User user = userService.login(username, password);
            //保存Session信息
            session.setAttribute("user",user);
        } catch (Exception e) {
            return "redirect:/login";//登录失败回到登录页面
        return "redirect:/employee/lists";//登录成功跳转到查询页面
    //退出
    @RequestMapping(value = "/logout")
    public String logout(HttpSession session) {
        session.invalidate();//session失效
        return "redirect:/login";//跳转到登录页面
}

package com.xuda.springboot.controller;

import com.xuda.springboot.pojo.Employee;
import com.xuda.springboot.service.EmployeeService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
/**
 * @author ：程序员徐大大
 * @description：TODO
 * @date ：2022-03-21 13:44
 */
@Controller
@RequestMapping(value = "employee")
public class EmployeeController {
    //打印日志
    private static final Logger log = LoggerFactory.getLogger(EmployeeController.class);
    @Value("${photo.file.dir}")
    private String realpath;
    private EmployeeService employeeService;
    @Autowired
    public EmployeeController(EmployeeService employeeService) {
        this.employeeService = employeeService;
    }
    //查询信息
  @RequestMapping(value = "/lists")
    public  String lists(Model model){
        log.info("查询所有员工信息");
        List employeeList = employeeService.lists();
        model.addAttribute("employeeList",employeeList);
        return "emplist";
    /**
     * 根据id查询员工详细信息
     *
     * @param id
     * @param model
     * @return
     */
    @RequestMapping(value = "/detail")
    public String detail(Integer id, Model model) {
        log.debug("当前查询员工id: {}", id);
        //1.根据id查询一个
        Employee employee = employeeService.findById(id);
        model.addAttribute("employee", employee);
        return "updateEmp";//跳转到更新页面
    //上传头像方法
    private String uploadPhoto(MultipartFile img, String originalFilename) throws IOException {
        String fileNamePrefix = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date());
        String fileNameSuffix = originalFilename.substring(originalFilename.lastIndexOf("."));
        String newFileName = fileNamePrefix + fileNameSuffix;
        img.transferTo(new File(realpath, newFileName));
        return newFileName;
     * 保存员工信息
     * 文件上传: 1.表单提交方式必须是post  2.表单enctype属性必须为 multipart/form-data
    @RequestMapping(value = "/save")
    public String save(Employee employee, MultipartFile img) throws IOException {
        log.debug("姓名:{}, 薪资:{}, 生日:{} ", employee.getNames(), employee.getSalary(), employee.getBirthday());
        String originalFilename = img.getOriginalFilename();
        log.debug("头像名称: {}", originalFilename);
        log.debug("头像大小: {}", img.getSize());
        log.debug("上传的路径: {}", realpath);
        log.debug("第一次--》员工信息:{}",employee.getNames());
        //1.处理头像的上传&修改文件名称
        String newFileName = uploadPhoto(img, originalFilename);
        //2.保存员工信息
        employee.setPhoto(newFileName);//保存头像名字
        employeeService.save(employee);
        return "redirect:/employee/lists";//保存成功跳转到列表页面
     * 更新员工信息
     * @param employee
     * @param img
    @RequestMapping(value = "/update")
    public String update(Employee employee, MultipartFile img) throws IOException {
        log.debug("更新之后员工信息: id:{},姓名:{},工资:{},生日:{},", employee.getId(), employee.getNames(), employee.getSalary(), employee.getBirthday());
        //1.判断是否更新头像
        boolean notEmpty = !img.isEmpty();
        log.debug("是否更新头像: {}", notEmpty);
        if (notEmpty) {
            //1.删除老的头像 根据id查询原始头像
            String oldPhoto = employeeService.findById(employee.getId()).getPhoto();
            File file = new File(realpath, oldPhoto);
            if (file.exists()) file.delete();//删除文件
            //2.处理新的头像上传
            String originalFilename = img.getOriginalFilename();
            String newFileName = uploadPhoto(img, originalFilename);
            //3.修改员工新的头像名称
            employee.setPhoto(newFileName);
        }
        //2.没有更新头像直接更新基本信息
        employeeService.update(employee);
        return "redirect:/employee/lists";//更新成功,跳转到员工列表
     * 删除员工信息
    @RequestMapping(value = "/delete")
    public String delete(Integer id){
        log.debug("删除的员工id: {}",id);
       String photo = employeeService.findById(id).getPhoto();
        employeeService.delete(id);
        //2.删除头像
       File file = new File(realpath, photo);
        if (file.exists()) file.delete();
        return "redirect:/employee/lists";//跳转到员工列表
}

package com.xuda.springboot.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
/**
 * @author ：程序员徐大大
 * @description：TODO
 * @date ：2022-03-20 20:49
 */
@Configuration
public class MvcConfig implements WebMvcConfigurer {
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("redirect:/login");
        registry.addViewController("login").setViewName("login");
        registry.addViewController("login.html").setViewName("login");
        registry.addViewController("register").setViewName("regist");
        registry.addViewController("addEmp").setViewName("addEmp");
    }
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginHandlerInterceptor()).addPathPatterns("/**")
                .excludePathPatterns("/register","/user/login","/css/**","/js/**","/img/**","/user/register","/login","/login.html");
}

package com.xuda.springboot.config;

import com.xuda.springboot.controller.UserController;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * @author ：程序员徐大大
 * @description：TODO
 * @date ：2022-03-21 20:17
 */
@Configuration
public class LoginHandlerInterceptor implements HandlerInterceptor {
    private static final Logger log = LoggerFactory.getLogger(LoginHandlerInterceptor.class);
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
       log.info("session+=》{}",request.getSession().getAttribute("user"));
        //登录成功后，应该有用户得session
        Object loginuser = request.getSession().getAttribute("user");
        if (loginuser == null) {
            request.setAttribute("loginmsg", "没有权限请先登录");
            request.getRequestDispatcher("/login.html").forward(request, response);
            return false;
        } else {
        return true;
        }
    }
}

#关闭thymeleaf模板缓存
spring:
  thymeleaf:
    cache: false
    prefix: classpath:/templates/ #指定模板位置
    suffix: .html #指定后缀名
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/ssmbuild?characterEncoding=UTF-8
    username: root
    password:
  web:
    resources:
      static-locations: classpath:/static/,file:${photo.file.dir} #暴露哪些资源可以通过项目名访问
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.xuda.springboot.pojo
#Mybatis配置
#日志配置
logging:
  level:
    root: info
    com.xuda: debug
#指定文件上传的位置
photo:
  file:
    dir: E:\IDEA_Project\SpringBoot_Demo_Plus\IDEA-SpringBoot-projectes\010-springboot-ems-thymeleaf\photo

	
	
	




	

		

			

				

					2022/03/21
					

				
			
			

				

					main
				
			

		
		

			

			
			

				添加员工信息:
			
			

				
							头像:
							
							工资:
							
							生日:
							

					

						

							姓名:
						
						

							
					
				
					
					
			
	
	

		

			1375595011@qq.com

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.6.4
         
    
    com.xuda.springboot
    010-springboot-ems-thymeleaf
    1.0.0
    010-springboot-ems-thymeleaf
    Demo project for Spring Boot
    
        1.8
    
    
        
        
            mysql
            mysql-connector-java
            5.1.48
        
            
            org.springframework.boot
            spring-boot-starter-thymeleaf
            
            spring-boot-starter-web
            
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            2.2.2

            
            org.projectlombok
            lombok
            true
            
            spring-boot-starter-test
            test
            com.alibaba
            druid
            1.1.10
    
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    
                        
                            org.projectlombok
                            lombok
                        
                    
                
            
        
    

    
        select id,names,salary,birthday,photo from employee;
    
    

    
    
        insert into `employee` values (#{id},#{names},#{salary},#{birthday},#{photo})
    
    
    
        select id,names,salary,birthday,photo from employee
        where id = #{id}
    
    
        update `employee` 
         
         names=#{names},
         
        
        salary=#{salary},
        
        
        birthday=#{birthday},
        
        names=#{photo},
        
    
    
    
        delete from `employee` where id = #{id}
    


10.UserMapper配置类


    
        select id,username,realname,password,gender from user where username = #{username};
    
    
        insert into USER  values (#{id},#{username},#{realname},#{password},#{gender});