智慧校园-2-项目搭建

package com.sloth.schoolbam.config;

import com.google.common.base.Predicates;
import io.swagger.annotations.ApiOperation;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.ParameterBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.schema.ModelRef;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.service.Parameter;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.ArrayList;
import java.util.List;

/**
 * Swagger2配置信息
 */
@Configuration
@EnableSwagger2
public class Swagger2Config {

    @Bean
    public Docket webApiConfig(){

        //添加head参数start
        List pars = new ArrayList<>();
        ParameterBuilder tokenPar = new ParameterBuilder();
        tokenPar.name("userId")
                .description("用户ID")
                .defaultValue("1")
                .modelRef(new ModelRef("string"))
                .parameterType("header")
                .required(false)
                .build();
        pars.add(tokenPar.build());

        ParameterBuilder tmpPar = new ParameterBuilder();
        tmpPar.name("userTempId")
                .description("临时用户ID")
                .defaultValue("1")
                .modelRef(new ModelRef("string"))
                .parameterType("header")
                .required(false)
                .build();
        pars.add(tmpPar.build());
        //添加head参数end

        return new Docket(DocumentationType.SWAGGER_2)
                .groupName("webApi")
                .apiInfo(webApiInfo())
                .select()
                //可以测试请求头中：输入token
                .apis(RequestHandlerSelectors.withClassAnnotation(ApiOperation.class))
                //过滤掉admin路径下的所有页面
                //.paths(Predicates.and(PathSelectors.regex("/sms/.*")))
                //过滤掉所有error或error.*页面
                //.paths(Predicates.not(PathSelectors.regex("/error.*")))
                .build()
                .globalOperationParameters(pars);

    }



    private ApiInfo webApiInfo(){

        return new ApiInfoBuilder()
                .title("网站-API文档")
                .description("本文档描述了网站微服务接口定义")
                .version("1.0")
                .contact(new Contact("atguigu", "http://atguigu.com", "512111559@qq.com"))
                .build();
    }

    private ApiInfo adminApiInfo(){

        return new ApiInfoBuilder()
                .title("后台管理系统-API文档")
                .description("本文档描述了后台管理系统微服务接口定义")
                .version("1.0")
                .contact(new Contact("atguigu", "http://atguigu.com", "512111559@qq.com"))
                .build();
    }


}

package com.sloth.schoolbam.util;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Random;

/**
 * @project: ssm_sms
 * @description: 绘制验证码图片
 */
public class CreateVerifiCodeImage {

    private static int WIDTH = 90;
    private static int HEIGHT = 35;
    private static int FONT_SIZE = 20; //字符大小
    private static char[] verifiCode; //验证码
    private static BufferedImage verifiCodeImage; //验证码图片

    /**
     * @description: 获取验证码图片
     * @param: no
     * @return: java.awt.image.BufferedImage
     */
    public static BufferedImage getVerifiCodeImage() {
        verifiCodeImage = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_BGR);// create a image
        Graphics graphics = verifiCodeImage.getGraphics();

        verifiCode = generateCheckCode();
        drawBackground(graphics);
        drawRands(graphics, verifiCode);

        graphics.dispose();

        return verifiCodeImage;
    }

    /**
     * @description: 获取验证码
     * @param: no
     * @return: char[]
     */
    public static char[] getVerifiCode() {
        return verifiCode;
    }

    /**
     * @description: 随机生成验证码
     * @param: no
     * @return: char[]
     */
    private static char[] generateCheckCode() {
        String chars = "0123456789abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
        char[] rands = new char[4];
        for (int i = 0; i < 4; i++) {
            int rand = (int) (Math.random() * (10 + 26 * 2));
            rands[i] = chars.charAt(rand);
        }
        return rands;
    }

    /**
     * @description: 绘制验证码
     * @param: g
     * @param: rands
     * @return: void
     */
    private static void drawRands(Graphics g, char[] rands) {
        g.setFont(new Font("Console", Font.BOLD, FONT_SIZE));

        for (int i = 0; i < rands.length; i++) {

            g.setColor(getRandomColor());
            g.drawString("" + rands[i], i * FONT_SIZE + 10, 25);
        }
    }

    /**
     * @description: 绘制验证码图片背景
     * @param: g
     * @return: void
     */
    private static void drawBackground(Graphics g) {

        g.setColor(Color.white);
        g.fillRect(0, 0, WIDTH, HEIGHT);

        // 绘制验证码干扰点
        for (int i = 0; i < 200; i++) {
            int x = (int) (Math.random() * WIDTH);
            int y = (int) (Math.random() * HEIGHT);
            g.setColor(getRandomColor());
            g.drawOval(x, y, 1, 1);

        }
    }


    /**
     * @description: 获取随机颜色
     * @param: no
     * @return: java.awt.Color
     */
    private static Color getRandomColor() {
        Random ran = new Random();
        return new Color(ran.nextInt(220), ran.nextInt(220), ran.nextInt(220));
    }
}

package com.sloth.schoolbam.util;

import javax.servlet.http.HttpServletRequest;

/**
 * 解析request请求中的 token口令的工具AuthContextHolder
 */
public class AuthContextHolder {

    //从请求头token获取userid
    public static Long getUserIdToken(HttpServletRequest request) {
        //从请求头token
        String token = request.getHeader("token");
        //调用工具类
        Long userId = JwtHelper.getUserId(token);
        return userId;
    }

    //从请求头token获取name
    public static String getUserName(HttpServletRequest request) {
        //从header获取token
        String token = request.getHeader("token");
        //jwt从token获取username
        String userName = JwtHelper.getUserName(token);
        return userName;
    }
}

package com.sloth.schoolbam.util;

import io.jsonwebtoken.*;
import org.springframework.util.StringUtils;

import java.util.Date;

/**
 * token口令生成工具 JwtHelper
 */
public class JwtHelper {
    private static long tokenExpiration = 24*60*60*1000;
    private static String tokenSignKey = "123456";

    //生成token字符串
    public static String createToken(Long userId, Integer userType) {
        String token = Jwts.builder()

                .setSubject("YYGH-USER")

                .setExpiration(new Date(System.currentTimeMillis() + tokenExpiration))

                .claim("userId", userId)
//                .claim("userName", userName)
                .claim("userType", userType)

                .signWith(SignatureAlgorithm.HS512, tokenSignKey)
                .compressWith(CompressionCodecs.GZIP)
                .compact();
        return token;
    }

    //从token字符串获取userid
    public static Long getUserId(String token) {
        if(StringUtils.isEmpty(token)) return null;
        Jws claimsJws = Jwts.parser().setSigningKey(tokenSignKey).parseClaimsJws(token);
        Claims claims = claimsJws.getBody();
        Integer userId = (Integer)claims.get("userId");
        return userId.longValue();
    }

    //从token字符串获取userType
    public static Integer getUserType(String token) {
        if(StringUtils.isEmpty(token)) return null;
        Jws claimsJws
                = Jwts.parser().setSigningKey(tokenSignKey).parseClaimsJws(token);
        Claims claims = claimsJws.getBody();
        return (Integer)(claims.get("userType"));
    }

    //从token字符串获取userName
    public static String getUserName(String token) {
        if(StringUtils.isEmpty(token)) return "";
        Jws claimsJws
                = Jwts.parser().setSigningKey(tokenSignKey).parseClaimsJws(token);
        Claims claims = claimsJws.getBody();
        return (String)claims.get("userName");
    }

    //判断token是否有效
    public static boolean isExpiration(String token){
        try {
            boolean isExpire = Jwts.parser()
                    .setSigningKey(tokenSignKey)
                    .parseClaimsJws(token)
                    .getBody()
                    .getExpiration().before(new Date());
            //没有过期，有效，返回false
            return isExpire;
        }catch(Exception e) {
            //过期出现异常，返回true
            return true;
        }
    }


    /**
     * 刷新Token
     * @param token
     * @return
     */
    public String refreshToken(String token) {
        String refreshedToken;
        try {
            final Claims claims = Jwts.parser()
                    .setSigningKey(tokenSignKey)
                    .parseClaimsJws(token)
                    .getBody();
            refreshedToken = JwtHelper.createToken(getUserId(token), getUserType(token));
        } catch (Exception e) {
            refreshedToken = null;
        }
        return refreshedToken;
    }

    public static void main(String[] args) {
//        String token = JwtHelper.createToken(1L, "lucy");
//        System.out.println(token);
//        System.out.println(JwtHelper.getUserId(token));
//        System.out.println(JwtHelper.getUserName(token));
    }
}

package com.sloth.schoolbam.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;


public final class MD5 {

    public static String encrypt(String strSrc) {
        try {
            char hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
                    '9', 'a', 'b', 'c', 'd', 'e', 'f' };
            byte[] bytes = strSrc.getBytes();
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(bytes);
            bytes = md.digest();
            int j = bytes.length;
            char[] chars = new char[j * 2];
            int k = 0;
            for (int i = 0; i < bytes.length; i++) {
                byte b = bytes[i];
                chars[k++] = hexChars[b >>> 4 & 0xf];
                chars[k++] = hexChars[b & 0xf];
            }
            return new String(chars);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            throw new RuntimeException("MD5加密出错！！+" + e);
        }
    }


}

package com.sloth.schoolbam.util;

import lombok.Getter;

/**
 * 统一返回结果状态信息类
 *
 */
@Getter
public enum ResultCodeEnum {

    SUCCESS(200,"成功"),
    FAIL(201, "失败"),
    SERVICE_ERROR(2012, "服务异常"),
    ILLEGAL_REQUEST( 204, "非法请求"),
    PAY_RUN(205, "支付中"),
    ARGUMENT_VALID_ERROR(206, "参数校验错误"),

    LOGIN_ERROR(207, "用户名或密码错误"),
    LOGIN_AUTH(208, "未登陆"),
    PERMISSION(209, "没有权限"),
    SECKILL_NO_START(210, "秒杀还没开始"),
    SECKILL_RUN(211, "正在排队中"),
    SECKILL_NO_PAY_ORDER(212, "您有未支付的订单"),
    SECKILL_FINISH(213, "已售罄"),
    SECKILL_END(214, "秒杀已结束"),
    SECKILL_SUCCESS(215, "抢单成功"),
    SECKILL_FAIL(216, "抢单失败"),
    SECKILL_ILLEGAL(217, "请求不合法"),
    SECKILL_ORDER_SUCCESS(218, "下单成功"),
    COUPON_GET(220, "优惠券已经领取"),
    COUPON_LIMIT_GET(221, "优惠券已发放完毕"),
    //2022-02-22
    LOGIN_CODE(222,"长时间未操作,会话已失效,请刷新页面后重试!"),
    CODE_ERROR(223,"验证码错误!"),
    TOKEN_ERROR(224,"Token无效!")
    ;

    private Integer code;

    private String message;

    private ResultCodeEnum(Integer code, String message) {
        this.code = code;
        this.message = message;
    }
}

package com.sloth.schoolbam.util;

import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;

/**
 * 全局统一返回结果类
 *
 */
@Data
@ApiModel(value = "全局统一返回结果")
public class Result {

    @ApiModelProperty(value = "返回码")
    private Integer code;

    @ApiModelProperty(value = "返回消息")
    private String message;

    @ApiModelProperty(value = "返回数据")
    private T data;

    public Result(){}

    // 返回数据
    protected static  Result build(T data) {
        Result result = new Result();
        if (data != null)
            result.setData(data);
        return result;
    }

    public static  Result build(T body, ResultCodeEnum resultCodeEnum) {
        Result result = build(body);
        result.setCode(resultCodeEnum.getCode());
        result.setMessage(resultCodeEnum.getMessage());
        return result;
    }

    public static Result ok(){
        return Result.ok(null);
    }

    /**
     * 操作成功
     * @param data
     * @param 
     * @return
     */
    public static Result ok(T data){
        Result result = build(data);
        return build(data, ResultCodeEnum.SUCCESS);
    }

    public static Result fail(){
        return Result.fail(null);
    }

    /**
     * 操作失败
     * @param data
     * @param 
     * @return
     */
    public static Result fail(T data){
        Result result = build(data);
        return build(data, ResultCodeEnum.FAIL);
    }

    public Result message(String msg){
        this.setMessage(msg);
        return this;
    }

    public Result code(Integer code){
        this.setCode(code);
        return this;
    }

    public boolean isOk() {
        if(this.getCode().intValue() == ResultCodeEnum.SUCCESS.getCode().intValue()) {
            return true;
        }
        return false;
    }
}

package com.sloth.schoolbam.util;

import org.apache.commons.io.filefilter.SuffixFileFilter;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

/**
 * @project: zhxy
 * @description: 上传文件的工具类
 */
public class UploadFile {

    //存储文件上传失败的错误信息
    private static Map error_result = new HashMap<>();
    //存储头像的上传结果信息
    private static Map upload_result = new HashMap<>();

    /**
     * @description: 效验所上传图片的大小及格式等信息...
     * @param: photo
     * @param: path
     * @return: java.util.Map
     */
    private static Map uploadPhoto(MultipartFile photo, String path) {
        //限制头像大小(20M)
        int MAX_SIZE = 20971520;
        //获取图片的原始名称
        String orginalName = photo.getOriginalFilename();
        //如果保存文件的路径不存在,则创建该目录
        File filePath = new File(path);
        if (!filePath.exists()) {
            filePath.mkdirs();
        }
        //限制上传文件的大小
        if (photo.getSize() > MAX_SIZE) {
            error_result.put("success", false);
            error_result.put("msg", "上传的图片大小不能超过20M哟!");
            return error_result;
        }
        // 限制上传的文件类型
        String[] suffixs = new String[]{".png", ".PNG", ".jpg", ".JPG", ".jpeg", ".JPEG", ".gif", ".GIF", ".bmp", ".BMP"};
        SuffixFileFilter suffixFileFilter = new SuffixFileFilter(suffixs);
        if (!suffixFileFilter.accept(new File(path + orginalName))) {
            error_result.put("success", false);
            error_result.put("msg", "禁止上传此类型文件! 请上传图片哟!");
            return error_result;
        }

        return null;
    }

    /**
     * @description: (提取公共代码 : 提高代码的可重用性)获取头像的上传结果信息
     * @param: photo
     * @param: dirPaht
     * @param: portraitPath
     * @return: java.util.Map
     */
    public static Map getUploadResult(MultipartFile photo, String dirPaht, String portraitPath) {

        if (!photo.isEmpty() && photo.getSize() > 0) {
            //获取图片的原始名称
            String orginalName = photo.getOriginalFilename();
            //上传图片,error_result:存储头像上传失败的错误信息
            Map error_result = UploadFile.uploadPhoto(photo, dirPaht);
            if (error_result != null) {
                return error_result;
            }
            //使用UUID重命名图片名称(uuid__原始图片名称)
            String newPhotoName = UUID.randomUUID() + "__" + orginalName;
            //将上传的文件保存到目标目录下
            try {
                photo.transferTo(new File(dirPaht + newPhotoName));
                upload_result.put("success", true);
                upload_result.put("portrait_path", portraitPath + newPhotoName);//将存储头像的项目路径返回给页面
            } catch (IOException e) {
                e.printStackTrace();
                upload_result.put("success", false);
                upload_result.put("msg", "上传文件失败! 服务器端发生异常!");
                return upload_result;
            }

        } else {
            upload_result.put("success", false);
            upload_result.put("msg", "头像上传失败! 未找到指定图片!");
        }
        return upload_result;
    }
}