Token注解实现前后端安全访问

痛定思痛。 2022-05-13 05:16 187阅读 0赞

## 前言 ##

## 1、Tocken注解 ##

package com.duodian.youhui.admin.config.token.annotation;
    
    import java.lang.annotation.ElementType;
    import java.lang.annotation.Retention;
    import java.lang.annotation.RetentionPolicy;
    import java.lang.annotation.Target;
    
    /** * 校验用户token * 可以用于class 或者 method * 如果在method和class都有，则以method的为准。 * @author HealerJean */
    @Target(value = {ElementType.TYPE,ElementType.METHOD})
    @Retention(RetentionPolicy.RUNTIME)
    public @interface Token { 
    
        /** * 是否校验token * @return */
        boolean check() default true;
    }

## 2、用户登录保存Token ##

@GetMapping( value = "/web//redirect",produces="application/json;charset=utf-8")
    @ResponseBody
    public ResponseBean authorizeRedirect(String code,Long fuWuBusinessNoId,Long dingYueBusinessNoId,String scope,Long userInfoPId){
        try {
            return  ResponseBean.buildSuccess(userInfoService.loginToken(fuWuBusinessNoId,dingYueBusinessNoId,code,scope,userInfoPId));
        } catch (AppException e) {
            ExceptionLogUtils.log(e, this.getClass());
            return ResponseBean.buildFailure(e.getCode(),e.getMessage());
        } catch (Exception e) {
            ExceptionLogUtils.log(e, this.getClass());
            return ResponseBean.buildFailure(e.getMessage());
        }
    }
    
    
    service中
    
    /** * 用户登录返回Token,之后利用拦截器中的toke * 获取用户当前上下文中的的id和openId * @param fuWuBusinessNoId * @param dingYueBusinessNoId * @param code * @param scope * @param userInfoPId * @return */
    @Override
    public String loginToken(Long fuWuBusinessNoId,Long dingYueBusinessNoId ,String code,String scope,Long userInfoPId) {
        UserInfo userInfo = weChatWebService.getAccessTokenByCode(fuWuBusinessNoId,dingYueBusinessNoId,code,scope,userInfoPId);
        String token =  setAppToken(userInfo.getId());
        return token;
    }
    
    @Override
    public String setAppToken(Long userId) {
        String token = DecriptUtil.LoginEncrypt(userId+"");
        stringRedisTemplate.opsForValue().set(CacheKey.APP_TOKEN + userId, token, 30, TimeUnit.DAYS);
        return token;
    }
    
    @Override
    public boolean checkAppToken(Long userId, String token) {
        String appToken = stringRedisTemplate.opsForValue().get(CacheKey.APP_TOKEN + userId);
        return !EmptyUtils.isEmpty(appToken) && appToken.equals(token);
    }

## 3、需要拦截的url打入Token ##

@Token

/** * 跳转到优惠券 * @return */
    @Token
    @GetMapping(value = "itemFilter",produces = "application/json")
    @ResponseBody
    @ApiOperation(value = "跳转到优惠券",notes = "跳转到优惠券",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = CouponItemGood.class)
    @ApiImplicitParams({
            @ApiImplicitParam(name = "userInfoId" ,value = "用户的id",dataTypeClass = Long.class,required = true,paramType = "query"),
            @ApiImplicitParam(name = "timeDiff" ,value = "渠道的失效时间设置",dataTypeClass = Integer.class,paramType = "query")
    })
    public ResponseBean itemFilter(Long userInfoId,Integer timeDiff){
        try {
            return ResponseBean.buildSuccess (haoDaoKuService.itemFilter(WeChatMessageParams.HAO_DAN_KU_GAOYONG_APIKEY, userInfoId, timeDiff));
        }catch (AppException e){
            ExceptionLogUtils.log(e, this.getClass());
            return ResponseBean.buildFailure(e.getCode(),e.getMessage());
        }catch (Exception e){
            ExceptionLogUtils.log(e, this.getClass());
            return ResponseBean.buildFailure(e.getMessage());
        }
    }

## 4、Token拦截器 ##

package com.duodian.youhui.admin.config.token.aop;
    
    import com.duodian.youhui.admin.bean.ResponseBean;
    import com.duodian.youhui.admin.config.ContextHolder;
    import com.duodian.youhui.admin.config.token.annotation.Token;
    import com.duodian.youhui.admin.moudle.user.service.UserInfoService;
    import com.duodian.youhui.admin.utils.DecriptUtil;
    import com.duodian.youhui.enums.exception.ErrorCodeEnum;
    import org.apache.commons.lang.StringUtils;
    import org.aspectj.lang.ProceedingJoinPoint;
    import org.aspectj.lang.Signature;
    import org.aspectj.lang.annotation.Around;
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.reflect.MethodSignature;
    import org.springframework.stereotype.Component;
    import org.springframework.web.context.request.RequestContextHolder;
    import org.springframework.web.context.request.ServletRequestAttributes;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import java.lang.reflect.Method;
    
    /** * @author HealerJean */
    @Aspect
    @Component
    public class TokenInterceptor {
    
        @Resource
        private UserInfoService userInfoService;
    
        /** * 先取method的Token，如果没有再去class的Token，如果有使用method的Token * 从request获取token进行解密，获取userId和oid，如果解密失败，返回错误信息 * 把userId和oid放入当前上下文 * * @param point * @return * @throws Throwable */
        @Around("@annotation(com.duodian.youhui.admin.config.token.annotation.Token) || @within(com.duodian.youhui.admin.config.token.annotation.Token)")
        protected Object invoke(ProceedingJoinPoint point) throws Throwable {
            Token token = null;
            Signature signature = point.getSignature();
            if (signature instanceof MethodSignature) {
                Method method = ((MethodSignature) signature).getMethod();
                token = method.getAnnotation(Token.class);
            }
            if (token == null) {
                token = point.getTarget().getClass().getAnnotation(Token.class);
            }
            if (token == null || !token.check()) {
                return point.proceed();
            }
            HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
            String tokenParam = request.getParameter("token");
            // String tokenParam = request.getHeader("token");
            if (tokenParam == null) {
                return ResponseBean.buildFailure(ErrorCodeEnum.token认证失败)  ;
            }
    
            try {
                String decrip =  DecriptUtil.LoginDecrypt(tokenParam) ;
                if (decrip == null) {
                    return ResponseBean.buildFailure(ErrorCodeEnum.token认证失败)  ;
                }
                Long userId = Long.valueOf( decrip);
                //检验redis中是否还存在，并比较相等
                if (!userInfoService.checkAppToken(userId, tokenParam)) {
                    return ResponseBean.buildFailure(ErrorCodeEnum.token认证失败) ;
                }
                ContextHolder.setUserId(userId);
                return point.proceed();
            } catch (Exception e) {
                throw e;
            } finally {
                ContextHolder.clear();
            }
        }
    
    }

## 5、Token加解密 ##

package com.duodian.youhui.admin.utils;
    
    import sun.misc.BASE64Decoder;
    import sun.misc.BASE64Encoder;
    
    import javax.crypto.*;
    import javax.crypto.spec.IvParameterSpec;
    import javax.crypto.spec.SecretKeySpec;
    import java.io.UnsupportedEncodingException;
    import java.security.InvalidKeyException;
    import java.security.MessageDigest;
    import java.security.NoSuchAlgorithmException;
    import java.security.SecureRandom;
    
    /** * @Desc:各种加密解密 * @Author HealerJean * @Date 2018/5/23 下午3:12. */
    
    public class DecriptUtil { 
    
    
        private static final String Loginkey = "jDFBfadsffsdffasdf";
        private static final byte[] Loginiv = "4960432565656562".getBytes();;
        private static final String Loginmode = "AES/CBC/PKCS5Padding";
    
    
        public static String LoginEncrypt( String strIn)  {
            try {
                SecretKeySpec skeySpec = getKey(Loginkey);
                Cipher cipher = Cipher.getInstance(Loginmode); //"算法/模式/补码方式"
                IvParameterSpec iv = new IvParameterSpec(Loginiv);使用CBC模式，需要一个向量iv，可增加加密算法的强度
                cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
                byte[] encrypted = cipher.doFinal(strIn.getBytes());
                return new BASE64Encoder().encode(encrypted);
            } catch (Exception e) {
                return  null;
            }
        }
    
        public static String LoginDecrypt(String strIn) {
            try {
                SecretKeySpec skeySpec = getKey(Loginkey);
                Cipher cipher = Cipher.getInstance(Loginmode);
                IvParameterSpec iv = new IvParameterSpec(Loginiv);
                cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
                byte[] encrypted1 = new BASE64Decoder().decodeBuffer(strIn);
    
                byte[] original = cipher.doFinal(encrypted1);
                String originalString = new String(original);
                return originalString;
            } catch (Exception e) {
                return null;
            }
        }
    
        private static SecretKeySpec getKey(String strKey) throws Exception {
            byte[] arrBTmp = strKey.getBytes();
            byte[] arrB = new byte[16]; // 创建一个空的16位字节数组（默认值为0）
            for (int i = 0; i < arrBTmp.length && i < arrB.length; i++) {
                arrB[i] = arrBTmp[i];
            }
            SecretKeySpec skeySpec = new SecretKeySpec(arrB, "AES");
            return skeySpec;
        }
    
    
    
    
    
        public static String SHA1(String decript) {
            try {
                MessageDigest digest = MessageDigest
                        .getInstance("SHA-1");
                digest.update(decript.getBytes());
                byte messageDigest[] = digest.digest();
                // Create Hex String
                StringBuffer hexString = new StringBuffer();
                // 字节数组转换为 十六进制 数
                for (int i = 0; i < messageDigest.length; i++) {
                    String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);
                    if (shaHex.length() < 2) {
                        hexString.append(0);
                    }
                    hexString.append(shaHex);
                }
                return hexString.toString();
    
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            }
            return "";
        }
    
        public static String SHA(String decript) {
            try {
                MessageDigest digest = MessageDigest
                        .getInstance("SHA");
                digest.update(decript.getBytes());
                byte messageDigest[] = digest.digest();
                // Create Hex String
                StringBuffer hexString = new StringBuffer();
                // 字节数组转换为 十六进制 数
                for (int i = 0; i < messageDigest.length; i++) {
                    String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);
                    if (shaHex.length() < 2) {
                        hexString.append(0);
                    }
                    hexString.append(shaHex);
                }
                return hexString.toString();
    
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            }
            return "";
        }
    
        public static String MD5(String input) {
            try {
                // 获得MD5摘要算法的 MessageDigest 对象
                MessageDigest mdInst = MessageDigest.getInstance("MD5");
                // 使用指定的字节更新摘要
                mdInst.update(input.getBytes());
                // 获得密文
                byte[] md = mdInst.digest();
                // 把密文转换成十六进制的字符串形式
                StringBuffer hexString = new StringBuffer();
                // 字节数组转换为 十六进制 数
                for (int i = 0; i < md.length; i++) {
                    String shaHex = Integer.toHexString(md[i] & 0xFF);
                    if (shaHex.length() < 2) {
                        hexString.append(0);
                    }
                    hexString.append(shaHex);
                }
                return hexString.toString();
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            }
            return "";
        }
    
        /** * 加密 * * @param content * 需要加密的内容 * @param password * 加密密码 * @return */
        public static byte[] encryptAES(String content, String password) {
            try {
                KeyGenerator kgen = KeyGenerator.getInstance("AES");
                kgen.init(128, new SecureRandom(password.getBytes()));
                SecretKey secretKey = kgen.generateKey();
                byte[] enCodeFormat = secretKey.getEncoded();
                SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
                Cipher cipher = Cipher.getInstance("AES");// 创建密码器
                byte[] byteContent = content.getBytes("utf-8");
                cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化
                byte[] result = cipher.doFinal(byteContent);
                return result; // 加密
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            } catch (NoSuchPaddingException e) {
                e.printStackTrace();
            } catch (InvalidKeyException e) {
                e.printStackTrace();
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            } catch (IllegalBlockSizeException e) {
                e.printStackTrace();
            } catch (BadPaddingException e) {
                e.printStackTrace();
            }
            return null;
        }
    
        /** * 解密 * * @param content * 待解密内容 * @param password * 解密密钥 * @return */
        public static byte[] decryptAES(byte[] content, String password) {
            try {
                KeyGenerator kgen = KeyGenerator.getInstance("AES");
                kgen.init(128, new SecureRandom(password.getBytes()));
                SecretKey secretKey = kgen.generateKey();
                byte[] enCodeFormat = secretKey.getEncoded();
                SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
                Cipher cipher = Cipher.getInstance("AES");// 创建密码器
                cipher.init(Cipher.DECRYPT_MODE, key);// 初始化
                byte[] result = cipher.doFinal(content);
                return result; // 加密
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            } catch (NoSuchPaddingException e) {
                e.printStackTrace();
            } catch (InvalidKeyException e) {
                e.printStackTrace();
            } catch (IllegalBlockSizeException e) {
                e.printStackTrace();
            } catch (BadPaddingException e) {
                e.printStackTrace();
            }
            return null;
        }
    
        /** * BASE64解密 * * @param key * @return * @throws Exception */
        public static String decryptBASE64(String key) {
    
            return "";
        }
    
        /** * BASE64加密 * * @param key * @return * @throws Exception */
        public static String encryptBASE64(String key) {
    
            return "";
        }
    
    
    // public static void main(String[] args) throws Exception { 
    //
    // String Code = "1";
    // String codE = DecriptUtil.LoginEncrypt(Code);
    // System.out.println("原文：" + Code);
    // System.out.println("密文：" + codE);
    // System.out.println("解密：" + DecriptUtil.LoginDecrypt( codE));
    // }
    
    
    
    }

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