{"id":38443,"date":"2025-05-20T13:02:38","date_gmt":"2025-05-20T05:02:38","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38443.html"},"modified":"2025-05-20T13:02:38","modified_gmt":"2025-05-20T05:02:38","slug":"%e5%be%ae%e6%9c%8d%e5%8a%a1%e9%a1%b9%e7%9b%ae-%ef%bc%9e%e5%9c%a8%e7%ba%bfoj%e7%b3%bb%e7%bb%9fjava%e7%89%88-4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38443.html","title":{"rendered":"\u5fae\u670d\u52a1\u9879\u76ee-\uff1e\u5728\u7ebfoj\u7cfb\u7edf(Java\u7248 - 4)"},"content":{"rendered":"

\u76f8\u4fe1\u81ea\u5df1,\u7ec8\u4f1a\u6210\u529f<\/span><\/p>\n

\"\"<\/span><\/p>\n

\u76ee\u5f55<\/p>\n

B\u7aef\u7528\u6237\u7ba1\u7406<\/p>\n

C\u7aef\u7528\u6237\u4ee3\u7801<\/p>\n

\u53d1\u9001\u9a8c\u8bc1\u7801:<\/p>\n

\u9a8c\u8bc1\u9a8c\u8bc1\u7801<\/p>\n

\u9000\u51fa\u767b\u5f55<\/p>\n

\u767b\u5f55\u7528\u6237\u4fe1\u606f\u529f\u80fd<\/p>\n

\u00a0\u7528\u6237\u8be6\u60c5\u4e0e\u7528\u6237\u7f16\u8f91<\/p>\n

\u00a0\u7528\u6237\u7ade\u8d5b\u63a5\u53e3<\/p>\n

\u7528\u6237\u62a5\u540d\u7ade\u8d5b<\/p>\n

\u7528\u6237\u7ade\u8d5b\u62a5\u540d\u63a5\u53e3\u67e5\u8be2<\/p>\n

\u00a0\u7528\u6237\u4fe1\u606f\u5217\u8868<\/p>\n

ThreadLocalUtil<\/p>\n

Hutool\u5de5\u5177\u5e93<\/p>\n

\u5e38\u7528\u529f\u80fd\u4ecb\u7ecd\u00a0<\/p>\n

\n

B\u7aef\u7528\u6237\u7ba1\u7406<\/h3>\n

\u8fdb\u884c\u5217\u8868\u663e\u793a\u4e0e\u7528\u6237\u72b6\u6001\u4fee\u6539(\u62c9\u9ed1\u64cd\u4f5c)<\/p>\n

\u7528\u6237\u5217\u8868\u663e\u793a\u4e3b\u8981\u8fd0\u7528\u4e86\u5206\u9875\u7ba1\u7406\u7ed9\u524d\u7aef\u4f20\u8f93\u6570\u636e(UserVO)\u4ece\u800c\u5728\u9875\u9762\u4e0a\u663e\u793a<\/p>\n

\u62c9\u9ed1\u64cd\u4f5c,\u6839\u636e\u524d\u7aef\u4f20\u9001\u8fc7\u6765\u7684\u6570\u636e,\u5728\u6570\u636e\u5e93\u4e2d\u6839\u636e\u7528\u6237id\u641c\u7d22\u6b64\u7528\u6237,\u5931\u8d25\u8fd4\u56de\u5f02\u5e38<\/p>\n

\u6210\u529f\u6267\u884cuser.setStatus(userDTO.getStatus());\u00a0\u4f5c\u7528\u662f\u628a\u00a0userDTO\u00a0\u91cc\u7684\u72b6\u6001\u503c\u8d4b\u7ed9\u00a0user\u00a0\u5bf9\u8c61<\/p>\n

userCacheManager.updateStatus(user.getUserId(), userDTO.getStatus());\u00a0\u5219\u662f\u8ba9\u7f13\u5b58\u4e2d\u7684\u7528\u6237\u72b6\u6001\u4e0e\u65b0\u72b6\u6001\u4fdd\u6301\u4e00\u81f4,\u6267\u884c updateStatus \u51fd\u6570,\u5148\u5237\u65b0\u7528\u6237\u7f13\u5b58,<\/p>\n

@Override
\n public List<UserVO> list(UserQueryDTO userQueryDTO) {
\n PageHelper.startPage(userQueryDTO.getPageNum(),userQueryDTO.getPageSize());
\n return userMapper.selectUserList(userQueryDTO);
\n }<\/p>\n

@Override
\n public int updateStatus(UserDTO userDTO) {
\n User user = userMapper.selectById(userDTO.getUserId());
\n if(user==null){
\n throw new ServiceException(ResultCode.FAILED_USER_NOT_EXISTS);
\n }
\n \/\/\u8fd9\u91cc\u662f\u4ece\u524d\u7aef\u62ff\u5230\u7684\u503c,\u5047\u8bbe\u524d\u7aef\u628a\u7528\u6237\u62c9\u9ed1,\u8fd4\u56de\u7684\u5c31\u662f0,\u8bbe\u7f6e\u4e5f\u5c31\u662f0
\n user.setStatus(userDTO.getStatus());
\n userCacheManager.updateStatus(user.getUserId(),userDTO.getStatus());
\n return userMapper.updateById(user);
\n } <\/p>\n

public void updateStatus(Long userId,Integer status) {
\n \/\/\u5237\u65b0\u7528\u6237\u7f13\u5b58
\n String userKey = getUserKey(userId);
\n User user = redisService.getCacheObject(userKey, User.class);
\n if(user==null){
\n return;
\n }
\n user.setStatus(status);
\n redisService.setCacheObject(userKey, user);
\n \/\/\u8bbe\u7f6e\u7528\u6237\u7f13\u5b58\u6709\u6548\u671f\u4e3a10\u5206\u949f
\n redisService.expire(userKey, CacheConstants.USER_EXP, TimeUnit.MINUTES);
\n } <\/p>\n

getCacheObiect\u4e2d\u4eceRedis\u7f13\u5b58\u4e2d\u83b7\u53d6\u5bf9\u8c61\u5e76\u8f6c\u6362\u4e3a\u6307\u5b9a\u7c7b\u578b\u00a0<\/p>\n

\u4eceredis\u7f13\u5b58\u4e2d\u83b7\u53d6\u6307\u5b9akey\u7684\u5bf9\u8c61,\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u6307\u5b9a\u7c7b\u578b\u7684\u793a\u4f8b<\/p>\n<\/p>\n

\/**
\n * \u83b7\u5f97\u7f13\u5b58\u7684\u57fa\u672c\u5bf9\u8c61\u3002
\n *
\n * @param key \u7f13\u5b58\u952e\u503c
\n * @return \u7f13\u5b58\u952e\u503c\u5bf9\u5e94\u7684\u6570\u636e
\n *\/
\n public <T> T getCacheObject(final String key, Class<T> clazz) {<\/p>\n

\/\/ \u83b7\u53d6 Redis \u7684 Value \u64cd\u4f5c\u5bf9\u8c61
\n ValueOperations<String, T> operation = redisTemplate.opsForValue();<\/p>\n

\/\/ \u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u5bf9\u8c61
\n T t = operation.get(key); <\/p>\n

\/\/ \u5982\u679c\u7f13\u5b58\u503c\u662f String \u7c7b\u578b\u4e14\u76ee\u6807\u7c7b\u578b\u4e5f\u662f String，\u5219\u76f4\u63a5\u8fd4\u56de
\n if (t instanceof String) {
\n return t;
\n }<\/p>\n

\/\/ \u5426\u5219\u5c1d\u8bd5\u5c06\u5bf9\u8c61\u8f6c\u6362\u4e3a JSON \u5b57\u7b26\u4e32\u5e76\u89e3\u6790\u4e3a\u76ee\u6807\u7c7b\u578b
\n return JSON.parseObject(String.valueOf(t), clazz);
\n } <\/p>\n

C\u7aef\u7528\u6237\u4ee3\u7801<\/h3>\n

\u53d1\u9001\u9a8c\u8bc1\u7801:<\/h4>\n

\u4ece\u524d\u7aef\u62ff\u5230\u6570\u636e,\u83b7\u53d6\u5230\u7528\u6237\u624b\u673a\u53f7\u7801,<\/p>\n

\u8fdb\u5165validatePhone(phone);\u7528\u4e8e\u5224\u65adphone\u662f\u5426\u4e3a\u7a7a(StrUtil.isBlank(phone),isStrUtil.isBlank\u662fHutool\u5de5\u5177\u7c7b<\/span>\u4e0b\u7684\u65b9\u6cd5Hutool\u5de5\u5177\u7c7b<\/span>\u4e0b\u65b9\u6709\u4ecb\u7ecd<\/span>),\u4e3a\u7a7a\u6267\u884c\u5f02\u5e38,\u4e0d\u4e3a\u7a7a\u5224\u65ad\u624b\u673a\u53f7\u683c\u5f0f\u662f\u5426\u6b63\u786e,\u5982\u679c\u6b63\u786e,\u5219\u6b63\u5e38\u8fdb\u884c\u9891\u7387\u68c0\u67e5<\/p>\n

checkDailyRequestLimit()\u68c0\u67e5\u6bcf\u65e5\u8bf7\u6c42\u9650\u5236<\/p>\n

\u751f\u6210Redis\u5b58\u50a8\u7684key（\u683c\u5f0f\u793a\u4f8b：c:t:13800138000）,\u4eceredis\u83b7\u53d6\u5df2\u53d1\u9001\u6b21\u6570(String\u7c7b\u578b),\u8f6c\u5316\u53d1\u9001\u6b21\u6570\u4e3aLong\u7c7b\u578b(\u82e5\u4e3a\u7a7a\u5219\u9ed8\u8ba4\u4e3a0),\u7ed9sendTimes\u8d4b\u503c,\u4e0e\u6bcf\u65e5\u9650\u5236\u6b21\u6570(sendLimit)\u8fdb\u884c\u5bf9\u6bd4,\u7ed3\u679c\u4e3atrue\u5219\u629b\u51fa\u5f02\u5e38<\/p>\n

@Override
\n public boolean sendCode(UserDTO userDTO) {
\n \/\/ 1. \u53c2\u6570\u6821\u9a8c
\n String phone = userDTO.getPhone();
\n validatePhone(phone);<\/p>\n

\/\/ 2. \u9891\u7387\u63a7\u5236\u68c0\u67e5
\n checkRequestFrequency(phone);<\/p>\n

\/\/ 3. \u6bcf\u65e5\u9650\u989d\u68c0\u67e5
\n checkDailyRequestLimit(phone);<\/p>\n

\/\/ 4. \u751f\u6210\u5e76\u5b58\u50a8\u9a8c\u8bc1\u7801
\n String code = generateVerificationCode(phone);<\/p>\n

\/\/ 5. \u53d1\u9001\u9a8c\u8bc1\u7801
\n sendVerificationCode(phone, code);<\/p>\n

System.out.println("code: "+code);
\n return true;<\/p>\n

}
\n private void validatePhone(String phone) {
\n if (StrUtil.isBlank(phone)) {
\n throw new ServiceException(ResultCode.FAILED_USER_PHONE_EMPTY);
\n }<\/p>\n

\/\/ \u4e2d\u56fd\u624b\u673a\u53f7\u6b63\u5219（11\u4f4d，1\u5f00\u5934）
\n String regex = "^1[3-9]\\\\\\\\d{9}$";
\n if (!Pattern.matches(regex, phone)) {
\n throw new ServiceException(ResultCode.FAILED_USER_PHONE_INVALID);
\n }
\n }<\/p>\n

private void checkRequestFrequency(String phone) {
\n \/\/ getExpire()\u83b7\u53d6\u5f53\u524d Key \u7684\u5269\u4f59\u751f\u5b58\u65f6\u95f4
\n String phoneCodeKey = getPhoneCodeKey(phone);
\n Long expire = redisService.getExpire(phoneCodeKey, TimeUnit.SECONDS);
\n \/\/ \u5982\u679c\u4e0a\u4e00\u6b21\u9a8c\u8bc1\u7801\u7684\u53d1\u9001\u65f6\u95f4\u8ddd\u79bb\u73b0\u5728 \u4e0d\u8db31\u5206\u949f（\u5373 \u603b\u6709\u6548\u671f – \u5269\u4f59\u65f6\u95f4 < 60\u79d2），\u5219\u62d2\u7edd\u65b0\u8bf7\u6c42\u3002
\n if (expire != null && (emailCodeExpiration * 60 – expire) < 60) {
\n throw new ServiceException(ResultCode.FAILED_FREQUENT);
\n }
\n }<\/p>\n

private void checkDailyRequestLimit(String phone) {
\n \/\/ \u6bcf\u5929\u7684\u9a8c\u8bc1\u7801\u83b7\u53d6\u6b21\u6570\u6709\u4e00\u4e2a\u9650\u5236 50 \u6b21 , \u7b2c\u4e8c\u5929 \u8ba1\u6570\u6e050 \u91cd\u65b0\u5f00\u59cb\u8ba1\u6570
\n \/\/ \u8ba1\u6570 \u600e\u4e48\u5b58,\u5b58\u5728\u54ea\u91cc ?
\n \/\/ \u64cd\u4f5c\u6b21\u6570\u6570\u636e\u9891\u7e41,\u4e0d\u9700\u8981\u5b58\u50a8, \u8bb0\u5f55\u7684\u6b21\u6570 \u6709\u6548\u65f6\u95f4(\u5f53\u5929\u6709\u6548) redis String key: c:t:
\n \/\/ 1.\u83b7\u53d6\u5df2\u7ecf\u8bf7\u6c42\u7684\u6b21\u6570 \u548c 50 \u8fdb\u884c\u6bd4\u8f83
\n String codeTimeKey = getCodeTimeKey(phone);
\n String sendTimesStr = redisService.getCacheObject(codeTimeKey, String.class);
\n Long sendTimes = sendTimesStr != null ? Long.parseLong(sendTimesStr) : 0L;
\n \/\/ \u5982\u679c\u5927\u4e8e\u9650\u5236,\u629b\u51fa\u5f02\u5e38
\n \/\/ \u5982\u679c\u4e0d\u5927\u4e8e\u9650\u5236,\u6b63\u5e38\u6267\u884c\u540e\u7eed\u903b\u8f91,\u5e76\u4e14\u5c06\u83b7\u53d6\u8ba1\u6570+1
\n if (sendTimes >= sendLimit) {
\n throw new ServiceException(ResultCode.FAILED_TIME_LIMIT);
\n }
\n } <\/p>\n

\n

\u9a8c\u8bc1\u9a8c\u8bc1\u7801<\/h4>\n

\u5bf9\u6bd4\u9a8c\u8bc1\u7801\u662f\u5426\u6b63\u786e,\u5982\u679c\u6b63\u786e,\u6839\u636e\u8f93\u5165\u7684phone\u53bb\u6570\u636e\u5e93\u4e2d\u67e5\u8be2<\/p>\n

\u5982\u679cuser\u4e3anull\u5219\u5728\u6570\u636e\u5e93\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7528\u6237,\u6dfb\u52a0\u624b\u673a\u53f7,\u7528\u6237\u72b6\u6001<\/p>\n

\u6700\u540e\u751f\u6210\u4e13\u5c5e\u4ee4\u724c,\u7528\u4e8e\u540e\u7eed\u9a8c\u8bc1<\/p>\n

@Override
\n public String codeLogin(String phone, String code) {
\n \/\/\u5224\u65ad\u9a8c\u8bc1\u7801\u662f\u5426\u6b63\u786e
\n CheckCode(phone,code);
\n User user = userMapper.selectOne(new LambdaQueryWrapper<User>().eq(User::getPhone, phone));
\n if(user==null){ \/\/\u65b0\u7528\u6237
\n \/\/\u6ce8\u518c\u903b\u8f91 1.\u5148\u5b8c\u6210\u9a8c\u8bc1\u7801\u7684\u6bd4\u5bf9->\u6210\u529f,\u5f80\u7cfb\u7edf\u4e2d\u589e\u52a0\u7528\u6237
\n user=new User();
\n user.setPhone(phone);
\n user.setStatus(UserStatus.Normal.getValue());
\n userMapper.insert(user);
\n }
\n return tokenService.createToken(user.getUserId(),secret, UserIdentity.ORDINARY.getValue(),user.getNickName(),user.getHeadImage());<\/p>\n

private void CheckCode(String phone, String code) {
\n String phoneCodeKey = getPhoneCodeKey(phone);
\n String cacheCode = redisService.getCacheObject(phoneCodeKey,String.class);<\/p>\n

if(StrUtil.isEmpty(cacheCode)){
\n throw new ServiceException(ResultCode.FAILED_INVALID_CODE);
\n }
\n if(!cacheCode.equals(code)){
\n throw new ServiceException(ResultCode.FAILED_CODE_MISMATCH);
\n }
\n redisService.deleteObject(phoneCodeKey);
\n } <\/p>\n

\u9000\u51fa\u767b\u5f55<\/h4>\n

\u6700\u5f00\u59cb\u68c0\u6d4btoken\u662f\u5426\u4e3a\u7a7a\u8fd9\u6b65\u662f\u4e00\u4e2a\u4fdd\u969c,\u9632\u6b62\u6ca1\u6709\u751f\u6210\u4ee4\u724c<\/p>\n

public static final String PREFIX = "Bearer ";\u4e3a\u4ee4\u724c\u524d\u7f00,\u5982\u679c\u5b58\u5728\u4ee4\u724c\u524d\u7f00\u5219\u628a\u524d\u7f00\u66ff\u6362\u6210\u7a7a<\/p>\n

\u6700\u540e\u5220\u9664\u4ee4\u724c<\/p>\n

@Override
\n public boolean logout(String token) {
\n \/\/\u68c0\u67e5token\u662f\u5426\u4e3a\u7a7a
\n if (StrUtil.isEmpty(token)) {
\n throw new ServiceException(ResultCode.TOKEN_IS_DEFAULT);
\n }
\n \/\/\u518d\u5904\u7406\u524d\u7f00
\n if (token.startsWith(HttpConstants.PREFIX)) {
\n token = token.replaceFirst(HttpConstants.PREFIX,StrUtil.EMPTY);
\n }<\/p>\n

return tokenService.deleteLoginUser(token,secret);<\/p>\n

}<\/p>\n

\u767b\u5f55\u7528\u6237\u4fe1\u606f\u529f\u80fd<\/h4>\n

LoginUserVO,\u8fd4\u56de\u7ed9\u524d\u7aef\u7684\u6570\u636e(\u5305\u62ec\u5934\u50cf\u548c\u6635\u79f0)<\/p>\n

\u6839\u636etoken\u83b7\u53d6\u767b\u5f55\u7528\u6237\u4fe1\u606f\u8fd4\u56de,\u5305\u542b\u7528\u6237\u57fa\u672c\u4fe1\u606f\u7684VO\u5bf9\u8c61<\/p>\n

\u7528\u6237\u5934\u50cf\u5b57\u6bb5\u9700\u8981\u62fc\u63a5\u4e0b\u8f7d\u5730\u5740\u524d\u7f00,\u4f7f\u7528StrUtil.isNotEmpty\u786e\u4fdd\u5934\u50cf\u5b57\u6bb5\u975e\u7a7a<\/p>\n

@Override
\n public R<LoginUserVO> info(String token) {<\/p>\n

\/\/ if (StrUtil.isNotEmpty(token) && token.startsWith(HttpConstants.PREFIX)) {
\n\/\/ token = token.replaceFirst(HttpConstants.PREFIX, StrUtil.EMPTY);
\n\/\/ }<\/p>\n

\/\/ \u5148\u68c0\u67e5token\u662f\u5426\u4e3a\u7a7a
\n if (StrUtil.isEmpty(token)) {
\n throw new ServiceException(ResultCode.TOKEN_IS_DEFAULT);
\n }
\n\/\/ \u518d\u5904\u7406\u524d\u7f00
\n if (token.startsWith(HttpConstants.PREFIX)) {
\n token = token.substring(HttpConstants.PREFIX.length());
\n }<\/p>\n

LoginUser loginUser = tokenService.getLoginUser(token, secret);<\/p>\n

if(loginUser==null){
\n return R.fail();
\n }
\n LoginUserVO loginUserVO=new LoginUserVO();
\n loginUserVO.setNickName(loginUser.getNickName());
\n if(StrUtil.isNotEmpty(loginUser.getHeadImage())){
\n loginUserVO.setHeadImage(download+loginUser.getHeadImage());
\n }
\n return R.ok(loginUserVO);
\n }<\/p>\n

\u00a0\u7528\u6237\u8be6\u60c5\u4e0e\u7528\u6237\u7f16\u8f91<\/h4>\n

\u7528\u6237\u8be6\u60c5<\/p>\n

\u4ece\u7ebf\u7a0b\u6c60\u4e2d\u83b7\u53d6userId\u7684\u503c<\/p>\n

\u5b9a\u4e49\u4e00\u4e2auserVO\u5bf9\u8c61,\u4ece\u6570\u636e\u5e93\u4e2d\u6839\u636euserId\u67e5\u8be2\u5185\u5bb9\u8d4b\u503c\u7ed9userVO<\/p>\n

\u5982\u679c\u7528\u6237\u5b58\u5728,\u8bbe\u7f6e\u5934\u50cf,\u5b58\u5165userVO,\u6700\u540e\u8fd4\u56de\u7ed9\u524d\u7aef<\/p>\n

\u7528\u6237\u7f16\u8f91<\/p>\n

\u5148\u628a\u7528\u6237\u83b7\u53d6\u51fa\u6765,\u6839\u636e\u524d\u7aef\u8f93\u5165\u7684\u5185\u5bb9\u53bb\u8ddf\u65b0\u6570\u636e\u5e93\u4e2d\u7684\u503c<\/p>\n

\u6700\u540e\u66f4\u65b0\u7f13\u5b58<\/p>\n

extracted(),\u5237\u65b0\u7528\u6237\u7f13\u5b58\u548c\u767b\u5f55\u72b6\u6001\u4fe1\u606f<\/p>\n

UserCacheManager .refreshUser:\u00a0\u7528\u6237\u7f13\u5b58\u5237\u65b0\u63a5\u53e3<\/p>\n

TokenService.refreshLoginUser:\u00a0Token\u4fe1\u606f\u5237\u65b0\u63a5\u53e3<\/p>\n

@Override
\n public UserVO detail() {
\n Long userId= ThreadLocalUtil.get(Constants.USER_ID,Long.class);
\n if(userId==null){
\n throw new ServiceException(ResultCode.FAILED_USER_NOT_EXISTS);
\n }
\n UserVO userVO;
\n userVO=userCacheManager.getUserById(userId);
\n if(userVO==null){
\n throw new ServiceException(ResultCode.FAILED_USER_NOT_EXISTS);
\n }
\n if(StrUtil.isNotEmpty(userVO.getHeadImage())){
\n userVO.setHeadImage(download+userVO.getHeadImage());
\n }
\n return userVO;
\n }
\n @Override
\n public int edit(UserUpdateDTO userUpdateDTO) {
\n User user = getUser();
\n user.setNickName(userUpdateDTO.getNickName());
\n user.setSex(userUpdateDTO.getSex());
\n user.setSchoolName(userUpdateDTO.getSchoolName());
\n user.setMajorName(userUpdateDTO.getMajorName());
\n user.setPhone(userUpdateDTO.getPhone());
\n user.setEmail(userUpdateDTO.getEmail());
\n user.setWechat(userUpdateDTO.getWechat());
\n user.setIntroduce(userUpdateDTO.getIntroduce());
\n \/\/\u66f4\u65b0\u7528\u6237\u7f13\u5b58
\n extracted(user);
\n return userMapper.updateById(user);
\n }<\/p>\n

private void extracted(User user) {
\n userCacheManager.refreshUser(user);
\n tokenService.refreshLoginUser(user.getNickName(), user.getHeadImage(),
\n ThreadLocalUtil.get(Constants.USER_KEY, String.class));
\n }<\/p>\n

\u00a0\u7528\u6237\u7ade\u8d5b\u63a5\u53e3<\/h3>\n

\u7528\u6237\u62a5\u540d\u7ade\u8d5b<\/h4>\n

\u83b7\u53d6\u5f53\u524d\u7528\u6237\u4fe1\u606f,\u7b5b\u9009\u7528\u6237\u662f\u5426\u7b26\u5408\u6761\u4ef6(1.\u7528\u6237\u5904\u4e8e\u767b\u5f55\u72b6\u6001 2.\u4e0d\u80fd\u62a5\u540d\u4e0d\u5b58\u5728\u7684\u7ade\u8d5b 3.\u4e0d\u80fd\u91cd\u590d\u62a5\u540d 4.\u5df2\u7ecf\u5f00\u8d5b\u7684\u7981\u6b62\u62a5\u540d<\/span>)<\/p>\n

\u6761\u4ef6\u7b26\u5408\u4e4b\u540e,\u5f80\u7528\u6237\u7ade\u8d5b\u8868\u4e2d\u6dfb\u52a0\u6570\u636e(\u5e95\u5c42\u4f7f\u7528list\u7ed3\u6784\u5b58\u50a8\u6570\u636e(\u5934\u63d2\u6cd5))<\/p>\n

@Override
\n public int enter(String token, Long examId) {<\/p>\n

\/\/ \u83b7\u53d6\u5f53\u524d\u7528\u6237\u7684\u4fe1\u606f status
\n Long userId = ThreadLocalUtil.get(Constants.USER_ID, Long.class);
\n\/\/ UserVO user = userCacheManager.getUserById(userId);
\n\/\/ if (user.getStatus()==0){
\n\/\/ throw new ServiceException(ResultCode.FAILED_USER_BANNED);
\n\/\/ }<\/p>\n

\/\/\u4f7f\u7528spring aop<\/p>\n

\/\/\u62a5\u540d\u662f\u5426\u7b26\u5408\u6761\u4ef6 (1.\u7528\u6237\u5904\u4e8e\u767b\u5f55\u72b6\u6001 2.\u4e0d\u80fd\u62a5\u540d\u4e0d\u5b58\u5728\u7684\u7ade\u8d5b 3.\u4e0d\u80fd\u91cd\u590d\u62a5\u540d 4.\u5df2\u7ecf\u5f00\u8d5b\u7684\u7981\u6b62\u62a5\u540d)
\n Exam exam = examMapper.selectById(examId);
\n if(exam==null){
\n throw new ServiceException(ResultCode.EXAM_RESULT_NOT_EXIST);
\n }
\n if(exam.getStartTime().isBefore(LocalDateTime.now())){
\n throw new ServiceException(ResultCode.EXAM_IS_START);
\n }
\n\/\/ Long userId= tokenService.getUserId(token,secret);
\n\/\/ Long userId = userId;
\n UserExam userExam = userExamMapper.selectOne(new LambdaQueryWrapper<UserExam>()
\n .eq(UserExam::getExamId, examId)
\n .eq(UserExam::getUserId, userId));
\n if(userExam!=null){
\n throw new ServiceException(ResultCode.USER_EXAM_HAS_ENTER);
\n }
\n examCacheManager.addUserExamCache(userId, examId);
\n userExam=new UserExam();
\n userExam.setExamId(examId);
\n userExam.setUserId(userId);
\n return userExamMapper.insert(userExam);
\n }<\/p>\n

\u7528\u6237\u7ade\u8d5b\u62a5\u540d\u63a5\u53e3\u67e5\u8be2<\/h4>\n

type :0:\u4ee3\u8868\u672a\u5b8c\u8d5b 1:\u4ee3\u8868\u5386\u53f2\u7ade\u8d5b\u00a0<\/p>\n

\u5148\u67e5\u8be2\u7528\u6237\u4fe1\u606f,\u628atype\u7684\u503c\u8bbe\u7f6e\u4e3a2,<\/p>\n

userExamMapper.selectUserExamList(userId)\u6839\u636euserId\u83b7\u53d6\u6307\u5b9a\u7c7b\u578b\u7684\u8003\u8bd5\u5217\u8868\u957f\u5ea6<\/p>\n

\u5224\u65adtype\u548cuserId\u662f\u5426\u4e3a\u7a7a<\/p>\n

\u4e0d\u4e3a\u7a7a\u751f\u6210redis\u552f\u4e00\u6807\u8bc6\u7b26,\u8fd4\u56de\u4e00\u4e2ajson\u5f62\u5f0f\u7684\u6570\u636e<\/p>\n

@Override
\n public TableDataInfo list(ExamQueryDTO examQueryDTO) {
\n Long userId = ThreadLocalUtil.get(Constants.USER_ID, Long.class);
\n examQueryDTO.setType(ExamListType.USER_EXAM_LIST.getValue());
\n Long total = examCacheManager.getListSize(ExamListType.USER_EXAM_LIST.getValue(),userId);
\n List<ExamVO> examVOList;
\n if(total == null || total <= 0){\/\/\u7f13\u5b58\u4e0d\u5b58\u5728\u65f6\u7684\u5904\u7406：
\n \/\/\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u6211\u7684\u7ade\u8d5b\u5217\u8868
\n PageHelper.startPage(examQueryDTO.getPageNum(),examQueryDTO.getPageSize());
\n examVOList = userExamMapper.selectUserExamList(userId);
\n \/\/\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u540c\u6b65\u7ed9\u7f13\u5b58
\n examCacheManager.refreshCache(examQueryDTO.getType(),userId);
\n \/\/\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2
\n total=new PageInfo<>(examVOList).getTotal();
\n }else{\/\/\u7f13\u5b58\u5b58\u5728\u65f6\u7684\u5904\u7406：
\n examVOList = examCacheManager.getExamVOList(examQueryDTO,userId);
\n \/\/\u4eceredis\u4e2d\u67e5\u8be2,\u5728\u67e5\u8be2\u65f6,\u51fa\u73b0\u5f02\u5e38\u60c5\u51b5,\u53ef\u80fd\u4f1a\u91cd\u65b0\u5237\u65b0\u6570\u636e,\u8fd9\u6b21\u67e5\u8be2\u7528\u6237\u6570\u636e\u7684\u66f4\u65b0
\n\/\/ 0:\u4ee3\u8868\u672a\u5b8c\u8d5b 1:\u8868\u793a\u5f00\u59cb\u7ade\u8d5b
\n total = examCacheManager.getListSize(examQueryDTO.getType(),userId);
\n }
\n\/\/ \u7a7a\u7ed3\u679c\u5904\u7406：
\n if (CollectionUtil.isEmpty(examVOList)){
\n return TableDataInfo.empty();
\n }
\n \/\/\u83b7\u53d6\u7b26\u5408\u67e5\u8be2\u6761\u4ef6\u7684\u6570\u636e\u603b\u6570
\n \/\/\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u6570\u636e,\u4e0d\u662f\u4eceredis\u4e2d\u67e5\u8be2\u6570\u636e
\n return TableDataInfo.success(examVOList,total);<\/p>\n

}<\/p>\n

public Long getListSize(Integer examListType, Long userId) {
\n \/\/ 1. \u53c2\u6570\u6821\u9a8c（\u793a\u4f8b，\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8c03\u6574）
\n if (examListType == null || userId == null) {
\n throw new IllegalArgumentException("\u53c2\u6570\u4e0d\u80fd\u4e3anull");
\n }<\/p>\n

\/\/ 2. \u751f\u6210\u4e1a\u52a1\u552f\u4e00\u7684Redis\u952e
\n String examListKey = getExamListKey(examListType, userId);<\/p>\n

\/\/ 3. \u83b7\u53d6Redis\u5217\u8868\u957f\u5ea6（\u8fd4\u56deLong\u7c7b\u578b，\u53ef\u80fd\u4e3a0）
\n return redisService.getListSize(examListKey);
\n}
\n \/\/\u672a\u67e5\u51fa\u4efb\u4f55\u6570\u636e\u65f6\u8c03\u7528
\n public static TableDataInfo empty() {
\n TableDataInfo rspData = new TableDataInfo();
\n rspData.setCode(ResultCode.SUCCESS.getCode());
\n rspData.setRows(new ArrayList<>());
\n rspData.setMsg(ResultCode.SUCCESS.getMsg());
\n rspData.setTotal(0);
\n return rspData;
\n }<\/p>\n

\/\/\u67e5\u51fa\u6570\u636e\u65f6\u8c03\u7528
\n public static TableDataInfo success(List<?> list,long total) {
\n TableDataInfo rspData = new TableDataInfo();
\n rspData.setCode(ResultCode.SUCCESS.getCode());
\n rspData.setRows(list);
\n rspData.setMsg(ResultCode.SUCCESS.getMsg());
\n rspData.setTotal(total);
\n return rspData;
\n } <\/p>\n

\u00a0\u7528\u6237\u4fe1\u606f\u5217\u8868<\/h3>\n

\u83b7\u53d6\u7528\u6237\u6d88\u606f\u5217\u8868（\u5e26\u5206\u9875，\u4f18\u5148\u4ece\u7f13\u5b58\u8bfb\u53d6）<\/p>\n

\u4eceThreadLocal\u83b7\u53d6\u5f53\u524d\u7528\u6237ID \u68c0\u67e5\u7f13\u5b58\u4e2d\u662f\u5426\u5b58\u5728\u6d88\u606f\u5217\u8868<\/p>\n

\u7f13\u5b58\u4e0d\u5b58\u5728,\u4e3a\u7a7a\u65f6\u67e5\u8be2\u6570\u636e\u5e93\u5e76\u5237\u65b0\u7f13\u5b58<\/p>\n

\u8fd4\u56de\u5206\u9875\u683c\u5f0f\u7684\u7edf\u4e00\u54cd\u5e94<\/p>\n

public TableDataInfo list(PageQueryDTO dto) {
\n \/\/ 1. \u83b7\u53d6\u5f53\u524d\u7528\u6237ID（\u4ece\u7ebf\u7a0b\u4e0a\u4e0b\u6587）
\n Long userId = ThreadLocalUtil.get(Constants.USER_ID, Long.class);
\n if (userId == null) {
\n throw new ServiceException("\u7528\u6237\u672a\u767b\u5f55");
\n }<\/p>\n

\/\/ 2. \u68c0\u67e5\u7f13\u5b58\u662f\u5426\u5b58\u5728\u6709\u6548\u6570\u636e
\n Long total = messageCacheManager.getListSize(userId);
\n List<MessageTextVO> messageTextVOList;<\/p>\n

\/\/ 3. \u7f13\u5b58\u4e0d\u5b58\u5728\u65f6\u8d70\u6570\u636e\u5e93\u67e5\u8be2
\n if (total == null || total <= 0) {
\n \/\/ 3.1 \u542f\u7528\u5206\u9875\u67e5\u8be2
\n PageHelper.startPage(dto.getPageNum(), dto.getPageSize());
\n messageTextVOList = messageTextMapper.selectUserMsgList(userId);<\/p>\n

\/\/ 3.2 \u5237\u65b0\u7f13\u5b58
\n messageCacheManager.refreshCache(userId);
\n total = new PageInfo<>(messageTextVOList).getTotal();
\n }
\n \/\/ 4. \u7f13\u5b58\u5b58\u5728\u65f6\u76f4\u63a5\u8bfb\u53d6
\n else {
\n messageTextVOList = messageCacheManager.getMsgTextVOList(dto, userId);
\n }<\/p>\n

\/\/ 5. \u5904\u7406\u7a7a\u7ed3\u679c
\n if (CollectionUtil.isEmpty(messageTextVOList)) {
\n return TableDataInfo.empty();
\n }<\/p>\n

\/\/ 6. \u8fd4\u56de\u7edf\u4e00\u5206\u9875\u54cd\u5e94
\n return TableDataInfo.success(messageTextVOList, total);
\n} <\/p>\n

\n

ThreadLocalUtil<\/h4>\n

ThreadLocalUtil\u662f\u4e00\u4e2a\u5de5\u5177\u7c7b，\u5c01\u88c5\u4e86Java\u7684ThreadLocal\u64cd\u4f5c，ThreadLocal\u5de5\u5177\u7c7b（\u57fa\u4e8eTransmittableThreadLocal\u5b9e\u73b0）<\/span><\/p>\n

\u5c01\u88c5\u7ebf\u7a0b\u9694\u79bb\u7684\u53d8\u91cf\u5b58\u50a8\u529f\u80fd，\u89e3\u51b3\u539f\u751fThreadLocal\u5728\u7ebf\u7a0b\u6c60\u573a\u666f\u4e0b\u7684\u6570\u636e\u6c61\u67d3\u95ee\u9898<\/p>\n

\u4f7f\u7528TransmittableThreadLocal\u66ff\u4ee3\u539f\u751fThreadLocal，\u652f\u6301\u7ebf\u7a0b\u6c60\u73af\u5883<\/p>\n

\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u7acb\u7ef4\u62a4ConcurrentHashMap\u5b58\u50a8\u6570\u636e，\u7ebf\u7a0b\u5b89\u5168<\/p>\n

\u81ea\u52a8\u5904\u7406null\u503c\u5b58\u50a8（\u8f6c\u4e3a\u7a7a\u5b57\u7b26\u4e32)<\/p>\n

\u5fc5\u987b\u663e\u5f0f\u8c03\u7528remove()\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u8be6\u60c5\u770b\u6ce8\u91ca<\/span><\/p>\n

\/\/ThreadLocalUtil\u662f\u4e00\u4e2a\u5de5\u5177\u7c7b，\u5c01\u88c5\u4e86Java\u7684ThreadLocal\u64cd\u4f5c，
\n\/\/\u7528\u4e8e\u5b9e\u73b0\u7ebf\u7a0b\u9694\u79bb\u7684\u53d8\u91cf\u5b58\u50a8（\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u7acb\u5b58\u53d6\u6570\u636e，\u4e92\u4e0d\u5e72\u6270）\u3002
\npublic class ThreadLocalUtil {
\n\/\/ \u4f7f\u7528 TransmittableThreadLocal（\u800c\u975e\u539f\u751f ThreadLocal），
\n\/\/ \u89e3\u51b3\u539f\u751f ThreadLocal \u5728\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u590d\u7528\u5bfc\u81f4\u7684\u6570\u636e\u9519\u4e71\u95ee\u9898\u3002
\n private static final TransmittableThreadLocal<Map<String, Object>>
\n THREAD_LOCAL = new TransmittableThreadLocal<>();<\/p>\n

\/**
\n * \u5b58\u50a8\u952e\u503c\u5bf9\u5230\u5f53\u524d\u7ebf\u7a0b\u4e0a\u4e0b\u6587
\n * @param key \u952e（\u975e\u7a7a）
\n * @param value \u503c（\u81ea\u52a8\u8f6c\u6362null\u4e3a\u7a7a\u5b57\u7b26\u4e32）
\n *\/<\/p>\n

public static void set(String key, Object value) {
\n Map<String, Object> map = getLocalMap();
\n map.put(key, value == null ? StrUtil.EMPTY : value);
\n }<\/p>\n

\/**
\n * \u4ece\u5f53\u524d\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u83b7\u53d6\u503c（\u5e26\u7c7b\u578b\u8f6c\u6362）
\n * @param key \u952e
\n * @param clazz \u76ee\u6807\u7c7b\u578bClass\u5bf9\u8c61
\n * @return \u503c（\u4e0d\u5b58\u5728\u65f6\u8fd4\u56denull）
\n * @param <T> \u8fd4\u56de\u503c\u6cdb\u578b
\n *\/
\n public static <T> T get(String key, Class<T> clazz) {
\n Map<String, Object> map = getLocalMap();
\n return (T) map.getOrDefault(key, null);
\n }<\/p>\n

\/**
\n * \u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684\u5b58\u50a8Map（\u4e0d\u5b58\u5728\u65f6\u81ea\u52a8\u521d\u59cb\u5316）
\n *
\n * \u6ce8\u610f：\u4f7f\u7528ConcurrentHashMap\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168<\/p>
\n *
\n * @return \u5f53\u524d\u7ebf\u7a0b\u5173\u8054\u7684Map（\u6c38\u4e0d\u4e3anull）
\n *\/<\/p>\n

\/\/ \u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u7acb\u7ef4\u62a4\u4e00\u4e2a Map<String, Object>，
\n\/\/ \u901a\u8fc7\u952e\u503c\u5bf9（Key-Value）\u5b58\u50a8\u6570\u636e，\u7ebf\u7a0b\u95f4\u6570\u636e\u4e92\u4e0d\u5e72\u6270\u3002
\n public static Map<String, Object> getLocalMap() {
\n Map<String, Object> map = THREAD_LOCAL.get();
\n if (map == null) {
\n map = new ConcurrentHashMap<String, Object>();
\n THREAD_LOCAL.set(map);
\n }
\n return map;
\n }<\/p>\n

\/**
\n * \u6e05\u9664\u5f53\u524d\u7ebf\u7a0b\u7684\u5b58\u50a8Map（
\n *
\n * \u4f7f\u7528\u573a\u666f：
\n * \u7ebf\u7a0b\u6c60\u573a\u666f\u5fc5\u987b\u8c03\u7528，\u907f\u514d\u5185\u5b58\u6cc4\u6f0f
\n * \u8bf7\u6c42\u5904\u7406\u7ed3\u675f\u65f6\u5efa\u8bae\u8c03\u7528
\n *\/<\/p>\n

\/\/\u6e05\u9664\u5f53\u524d\u7ebf\u7a0b\u7684 Map，\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f（\u5c24\u5176\u5728\u7ebf\u7a0b\u6c60\u573a\u666f\u4e2d\u5fc5\u987b\u8c03\u7528）
\n public static void remove() {
\n THREAD_LOCAL.remove();
\n }
\n}<\/p>\n

\u00a0<\/p>\n

Hutool\u5de5\u5177\u5e93<\/h3>\n

\u5b98\u65b9\u7f51\u7ad9:<\/span><\/p>\n

Hutool🍬\u4e00\u4e2a\u529f\u80fd\u4e30\u5bcc\u4e14\u6613\u7528\u7684Java\u5de5\u5177\u5e93，\u6db5\u76d6\u4e86\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u3001\u96c6\u5408\u3001\u7f16\u7801\u3001\u65e5\u671f\u3001\u6587\u4ef6\u3001IO\u3001\u52a0\u5bc6\u3001\u6570\u636e\u5e93JDBC\u3001JSON\u3001HTTP\u5ba2\u6237\u7aef\u7b49\u529f\u80fd\u3002<\/p>\n

\u5bfc\u5165\u4f9d\u8d56<\/p>\n

<dependency>
\n <groupId>cn.hutool<\/groupId>
\n <artifactId>hutool-core<\/artifactId>
\n <version>5.8.16<\/version> <!– \u4ee5\u6700\u65b0\u7248\u672c\u4e3a\u51c6 –>
\n<\/dependency><\/p>\n

\u5e38\u7528\u529f\u80fd\u4ecb\u7ecd<\/span>\u00a0<\/h4>\n

1.1 \u5b57\u7b26\u4e32\u5de5\u5177（StrUtil）<\/p>\n

import cn.hutool.core.util.StrUtil;<\/p>\n

\/\/ \u5224\u7a7a
\nboolean isBlank = StrUtil.isBlank(" "); \/\/ true（\u7a7a\u6216\u7a7a\u767d\u5b57\u7b26）
\nboolean isEmpty = StrUtil.isEmpty(""); \/\/ true（\u4ec5\u7a7a\u5b57\u7b26\u4e32）<\/p>\n

\/\/ \u683c\u5f0f\u5316\u5b57\u7b26\u4e32
\nString formatted = StrUtil.format("Hello, {}!", "Hutool"); \/\/ "Hello, Hutool!"<\/p>\n

\/\/ \u5b57\u7b26\u4e32\u622a\u53d6\u3001\u586b\u5145\u3001\u53cd\u8f6c
\nString sub = StrUtil.sub("HelloWorld", 2, 5); \/\/ "llo"
\nString padded = StrUtil.padPre("123", 5, '0'); \/\/ "00123"
\nString reversed = StrUtil.reverse("ABC"); \/\/ "CBA" <\/p>\n

1.2 \u6570\u5b57\u5de5\u5177（NumberUtil）<\/p>\n

import cn.hutool.core.util.NumberUtil;<\/p>\n

\/\/ \u6570\u5b66\u8ba1\u7b97
\nint sum = NumberUtil.add(1, 2, 3); \/\/ 6
\ndouble div = NumberUtil.div(10, 3, 2); \/\/ 3.33（\u4fdd\u75592\u4f4d\u5c0f\u6570）<\/p>\n

\/\/ \u6570\u5b57\u5224\u65ad
\nboolean isNumber = NumberUtil.isNumber("123.45"); \/\/ true
\nboolean isInteger = NumberUtil.isInteger("100"); \/\/ true <\/p>\n

1.3 \u65e5\u671f\u65f6\u95f4\u5de5\u5177（DateUtil）<\/p>\n

import cn.hutool.core.date.DateUtil;<\/p>\n

\/\/ \u65e5\u671f\u89e3\u6790\u4e0e\u683c\u5f0f\u5316
\nDate date = DateUtil.parse("2023-10-01"); \/\/ String \u2192 Date
\nString dateStr = DateUtil.format(date, "yyyy\/MM\/dd"); \/\/ "2023\/10\/01"<\/p>\n

\/\/ \u65e5\u671f\u8ba1\u7b97
\nDate tomorrow = DateUtil.offsetDay(new Date(), 1); \/\/ \u660e\u5929
\nlong betweenDays = DateUtil.between(date, new Date(), DateUnit.DAY); \/\/ \u76f8\u5dee\u5929\u6570<\/p>\n

\/\/ \u83b7\u53d6\u65f6\u95f4\u90e8\u5206
\nint year = DateUtil.year(date); \/\/ 2023
\nint month = DateUtil.month(date) + 1; \/\/ 10（\u6708\u4efd\u4ece0\u5f00\u59cb） <\/p>\n

1.4 \u96c6\u5408\u5de5\u5177（CollUtil）<\/p>\n

import cn.hutool.core.collection.CollUtil;<\/p>\n

List<String> list = CollUtil.newArrayList("A", "B", "C");<\/p>\n

\/\/ \u5224\u7a7a
\nboolean isEmpty = CollUtil.isEmpty(list); \/\/ false<\/p>\n

\/\/ \u96c6\u5408\u64cd\u4f5c
\nList<String> reversedList = CollUtil.reverse(list); \/\/ ["C", "B", "A"]
\nString joined = CollUtil.join(list, ","); \/\/ "A,B,C" <\/p>\n

2.1 \u6587\u4ef6\u5de5\u5177（FileUtil）<\/p>\n

import cn.hutool.core.io.FileUtil;<\/p>\n

\/\/ \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9
\nString content = FileUtil.readUtf8String("test.txt");<\/p>\n

\/\/ \u5199\u5165\u6587\u4ef6
\nFileUtil.writeUtf8String("Hello, Hutool!", "output.txt");<\/p>\n

\/\/ \u6587\u4ef6\u64cd\u4f5c
\nboolean exists = FileUtil.exist("test.txt"); \/\/ \u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728
\nFileUtil.copy("src.txt", "dest.txt", true); \/\/ \u590d\u5236\u6587\u4ef6（\u8986\u76d6）
\nFileUtil.del("temp_dir"); \/\/ \u5220\u9664\u76ee\u5f55 <\/p>\n

2.2 \u6d41\u5de5\u5177（IoUtil）<\/p>\n

import cn.hutool.core.io.IoUtil;<\/p>\n

\/\/ \u6d41\u62f7\u8d1d（\u81ea\u52a8\u5173\u95ed\u6d41）
\ntry (InputStream in = new FileInputStream("src.txt");
\n OutputStream out = new FileOutputStream("dest.txt")) {
\n IoUtil.copy(in, out, IoUtil.DEFAULT_BUFFER_SIZE);
\n} <\/p>\n

3.1 \u6458\u8981\u52a0\u5bc6（DigestUtil）<\/p>\n

import cn.hutool.crypto.digest.DigestUtil;<\/p>\n

\/\/ MD5
\nString md5 = DigestUtil.md5Hex("123456"); \/\/ "e10adc3949ba59abbe56e057f20f883e"<\/p>\n

\/\/ SHA-256
\nString sha256 = DigestUtil.sha256Hex("123456");<\/p>\n

\/\/ \u52a0\u76d0\u52a0\u5bc6（BCrypt）
\nString hashed = BCrypt.hashpw("password");
\nboolean isMatch = BCrypt.checkpw("password", hashed); \/\/ \u6821\u9a8c <\/p>\n

\u00a03.2 \u5bf9\u79f0\u52a0\u5bc6（AES\u3001DES）<\/p>\n

import cn.hutool.crypto.SecureUtil;<\/p>\n

\/\/ AES \u52a0\u5bc6
\nString key = "1234567890abcdef"; \/\/ 16\/24\/32\u4f4d\u5bc6\u94a5
\nString encrypted = SecureUtil.aes(key.getBytes()).encryptHex("Hello");
\nString decrypted = SecureUtil.aes(key.getBytes()).decryptStr(encrypted); <\/p>\n\n\u6a21\u5757\u4e3b\u8981\u529f\u80fd\u5e38\u7528\u7c7b<\/tr>\n\n\n\n\n\n\n
hutool-core<\/td>\n\u5b57\u7b26\u4e32\u3001\u65e5\u671f\u3001\u96c6\u5408\u3001\u6570\u5b57<\/td>\nStrUtil,\u00a0DateUtil,\u00a0CollUtil<\/td>\n<\/tr>\n
hutool-http<\/td>\nHTTP \u8bf7\u6c42<\/td>\nHttpUtil<\/td>\n<\/tr>\n
hutool-crypto<\/td>\n\u52a0\u5bc6\u89e3\u5bc6（MD5\u3001AES\u3001BCrypt）<\/td>\nDigestUtil,\u00a0SecureUtil<\/td>\n<\/tr>\n
hutool-json<\/td>\nJSON\/XML \u5904\u7406<\/td>\nJSONUtil,\u00a0XmlUtil<\/td>\n<\/tr>\n
hutool-extra<\/td>\n\u6587\u4ef6\u3001IO\u3001\u90ae\u4ef6\u7b49<\/td>\nFileUtil,\u00a0MailUtil<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

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