{"id":1590,"date":"2026-06-29T11:17:14","date_gmt":"2026-06-29T03:17:14","guid":{"rendered":"https:\/\/yunyanglib.cn\/?p=1590"},"modified":"2026-06-29T11:18:16","modified_gmt":"2026-06-29T03:18:16","slug":"%e3%80%90java%e3%80%91hutool-java-%e5%bc%80%e5%8f%91%e7%9a%84%e4%b8%87%e8%83%bd%e5%b7%a5%e5%85%b7%e5%ba%93%ef%bc%8c%e5%91%8a%e5%88%ab%e9%87%8d%e5%a4%8d%e9%80%a0%e8%bd%ae%e5%ad%90","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=1590","title":{"rendered":"\u3010Java\u3011Hutool\u2014\u2014Java \u5f00\u53d1\u7684\u4e07\u80fd\u5de5\u5177\u5e93\uff0c\u544a\u522b\u91cd\u590d\u9020\u8f6e\u5b50"},"content":{"rendered":"\n

\u65e5\u5e38\u505a Java \u540e\u7aef\u5f00\u53d1\u65f6\uff0c\u6211\u4eec\u603b\u4f1a\u53cd\u590d\u5199\u7c7b\u578b\u8f6c\u6362\u3001\u65e5\u671f\u5904\u7406\u3001\u6587\u4ef6\u8bfb\u5199\u3001\u624b\u673a\u53f7\u6821\u9a8c\u8fd9\u7c7b\u901a\u7528\u5de5\u5177\u65b9\u6cd5\uff0c\u6bcf\u6b21\u65b0\u5efa\u9879\u76ee\u90fd\u8981\u590d\u5236\u4e00\u5806\u5de5\u5177\u7c7b\uff0c\u7e41\u7410\u8fd8\u5bb9\u6613\u51fa BUG\u3002\u6700\u8fd1\u6df1\u8015\u5de5\u5177\u7c7b\u5e93\uff0c\u53d1\u73b0Hutool<\/strong>\u51e0\u4e4e\u5305\u63fd\u4e86\u5f00\u53d1\u4e2d 80% \u7684\u901a\u7528\u64cd\u4f5c\uff0c\u5c01\u88c5\u7b80\u6d01\u3001API \u6613\u61c2\uff0c\u4eca\u5929\u7ed3\u5408\u5b9e\u6218\u4ee3\u7801\uff0c\u5206\u4eab Hutool \u5e38\u7528\u5de5\u5177\u3002<\/p>\n\n\n\n

\u4e00\u3001Maven \u5feb\u901f\u5f15\u5165\u4f9d\u8d56<\/h2>\n\n\n\n

\u4f7f\u7528 Hutool \u6700\u7b80\u5355\u7684\u65b9\u5f0f\u5c31\u662f Maven \u5f15\u5165\uff0c\u63a8\u8350\u4f7f\u7528\u5168\u91cf\u4f9d\u8d56\uff0c\u5c0f\u9879\u76ee\u65e0\u9700\u9010\u4e2a\u5bfc\u5165\u5b50\u6a21\u5757\uff1a<\/p>\n\n\n\n

<!-- Hutool\u5168\u91cf\u4f9d\u8d56 -->\n<dependency>\n    <groupId>cn.hutool<\/groupId>\n    <artifactId>hutool-all<\/artifactId>\n    <version>5.8.24<\/version>\n<\/dependency>\n<\/code><\/pre>\n\n\n\n
Gradle \u9879\u76ee\u76f4\u63a5\uff1aimplementation 'cn.hutool:hutool-all:5.8.24'<\/code><\/p>\n\n\n\n
\u4e8c\u3001\u5e38\u7528\u5de5\u5177\u7c7b\u5b9e\u6218\u6f14\u793a<\/h2>\n\n\n\n
1. Convert\uff1a\u4e07\u80fd\u7c7b\u578b\u8f6c\u6362\u5668<\/h3>\n\n\n\n
\u4f20\u7edf Java \u7c7b\u578b\u8f6c\u6362\u9700\u8981\u624b\u52a8\u5224\u7a7a\u3001\u6355\u83b7\u5f02\u5e38\uff0cConvert \u81ea\u5e26\u9ed8\u8ba4\u503c\u515c\u5e95\uff0c\u907f\u514d\u7a7a\u6307\u9488\uff1a<\/p>\n\n\n\n
import cn.hutool.core.convert.Convert;\n\npublic class ConvertDemo {\n    public static void main(String[] args) {\n        \/\/ \u5b57\u7b26\u4e32\u8f6cint\uff0c\u8f6c\u6362\u5931\u8d25\u8fd4\u56de\u9ed8\u8ba4\u503c0\n        int num = Convert.toInt(\"123\",0);\n        int errNum = Convert.toInt(\"abc\",0);\n        System.out.println(num);    \/\/ 123\n        System.out.println(errNum); \/\/ 0\n\n        \/\/ \u6570\u7ec4\u8f6c\u96c6\u5408\n        String[] arr = {\"Java\",\"MySQL\",\"Linux\"};\n        List<?> list = Convert.toList(arr);\n        System.out.println(list);\n    }\n}\n<\/code><\/pre>\n\n\n\n
2. DateUtil\uff1a\u65e5\u671f\u5904\u7406\u795e\u5668<\/h3>\n\n\n\n
\u539f\u751f Date\u3001SimpleDateFormat \u7ebf\u7a0b\u4e0d\u5b89\u5168\u3001\u4ee3\u7801\u5197\u957f\uff0cDateUtil \u4e00\u884c\u641e\u5b9a\u65e5\u671f\u683c\u5f0f\u5316\u3001\u65e5\u671f\u504f\u79fb\u3001\u65f6\u95f4\u5dee\u8ba1\u7b97\uff1a<\/p>\n\n\n\n
import cn.hutool.core.date.DateUtil;\nimport java.util.Date;\n\npublic class DateDemo {\n    public static void main(String[] args) {\n        \/\/ \u83b7\u53d6\u5f53\u524d\u65e5\u671f\u5b57\u7b26\u4e32\n        String now = DateUtil.now();\n        System.out.println(\"\u5f53\u524d\u65f6\u95f4\uff1a\"+now);\n\n        \/\/ \u5b57\u7b26\u4e32\u8f6c\u65e5\u671f\n        Date parseDate = DateUtil.parse(\"2026-06-02\");\n\n        \/\/ \u52a03\u5929\n        Date after3Day = DateUtil.offsetDay(parseDate,3);\n        System.out.println(\"\u4e09\u5929\u540e\uff1a\"+DateUtil.formatDate(after3Day));\n\n        \/\/ \u8ba1\u7b97\u4e24\u4e2a\u65e5\u671f\u76f8\u5dee\u5929\u6570\n        long day = DateUtil.betweenDay(new Date(),after3Day,true);\n        System.out.println(\"\u95f4\u9694\u5929\u6570\uff1a\"+day);\n    }\n}\n<\/code><\/pre>\n\n\n\n
3. StrUtil\uff1a\u5b57\u7b26\u4e32\u5de5\u5177\uff0c\u66ff\u4ee3 StringUtils<\/h3>\n\n\n\n
\u5224\u7a7a\u3001\u622a\u53d6\u3001\u62fc\u63a5\u3001\u53bb\u7a7a\u683c\u5168\u5c01\u88c5\uff0c\u5f00\u53d1\u9ad8\u9891\u4f7f\u7528\uff1a<\/p>\n\n\n\n
import cn.hutool.core.util.StrUtil;\n\npublic class StrDemo {\n    public static void main(String[] args) {\n        String str1 = \"\";\n        String str2 = null;\n        String str3 = \" Hutool \";\n        \/\/ \u5224\u65ad\u7a7a\u4e32\/Null\n        System.out.println(StrUtil.isBlank(str1)); \/\/ true\n        System.out.println(StrUtil.isBlank(str2)); \/\/ true\n        System.out.println(StrUtil.isNotBlank(str3));\/\/true\n\n        \/\/ \u53bb\u9664\u9996\u5c3e\u7a7a\u683c\n        String trim = StrUtil.trim(str3);\n        System.out.println(trim);\n    }\n}\n<\/code><\/pre>\n\n\n\n
4. IdcardUtil\uff1a\u8eab\u4efd\u8bc1\u4fe1\u606f\u6821\u9a8c\u4e0e\u89e3\u6790<\/h3>\n\n\n\n
\u505a\u5b9e\u540d\u8ba4\u8bc1\u9700\u6c42\u5fc5\u5907\uff0c\u652f\u6301 18 \u4f4d\u5927\u9646\u8eab\u4efd\u8bc1\u3001\u8001\u7248 15 \u4f4d\u8eab\u4efd\u8bc1\u6821\u9a8c\uff1a<\/p>\n\n\n\n
import cn.hutool.core.util.IdcardUtil;\n\npublic class IdCardDemo {\n    public static void main(String[] args) {\n        String idCard = \"3401*********1234\";\n        \/\/ \u6821\u9a8c\u8eab\u4efd\u8bc1\u5408\u6cd5\u6027\n        boolean valid = IdcardUtil.isValidCard(idCard);\n        System.out.println(\"\u8eab\u4efd\u8bc1\u662f\u5426\u5408\u6cd5\uff1a\"+valid);\n        \/\/ \u83b7\u53d6\u51fa\u751f\u5e74\u6708\u65e5\n        String birth = IdcardUtil.getBirthByIdCard(idCard);\n        System.out.println(\"\u51fa\u751f\u65e5\u671f\uff1a\"+birth);\n    }\n}\n<\/code><\/pre>\n\n\n\n
5. SecureUtil\uff1a\u52a0\u89e3\u5bc6\u5de5\u5177<\/h3>\n\n\n\n
MD5\u3001AES\u3001RSA \u7b49\u5e38\u7528\u52a0\u5bc6\u4e00\u884c\u8c03\u7528\uff0c\u4e0d\u7528\u624b\u52a8\u5b9e\u73b0\u52a0\u5bc6\u7b97\u6cd5\uff1a<\/p>\n\n\n\n
import cn.hutool.crypto.SecureUtil;\n\npublic class EncryptDemo {\n    public static void main(String[] args) {\n        String password = \"123456\";\n        \/\/ MD5\u52a0\u5bc6\n        String md5 = SecureUtil.md5(password);\n        System.out.println(\"\u5bc6\u7801MD5\uff1a\"+md5);\n    }\n}\n<\/code><\/pre>\n\n\n\n
6. Dict\uff1a\u7075\u6d3b\u6269\u5c55 Map<\/h3>\n\n\n\n
Dict \u7ee7\u627f HashMap\uff0c\u952e\u4e0d\u9650\u5236\u7c7b\u578b\uff0c\u5e38\u7528\u5728\u63a5\u53e3\u53c2\u6570\u5c01\u88c5\uff1a<\/p>\n\n\n\n
import cn.hutool.core.lang.Dict;\n\npublic class DictDemo {\n    public static void main(String[] args) {\n        Dict dict = Dict.create()\n                .set(\"username\",\"\u4e91\u626c\")\n                .set(\"blog\",\"yunyanglib.cn\")\n                .set(\"age\",22);\n        System.out.println(dict.getStr(\"username\"));\n        System.out.println(dict);\n    }\n}\n<\/code><\/pre>\n\n\n\n
\u4e09\u3001\u5c0f\u4f17\u4f46\u5b9e\u7528\u7684\u5de5\u5177\u7c7b<\/h2>\n\n\n\n
    \n
  1. FileUtil\/IoUtil<\/strong>\uff1a\u6587\u4ef6\u521b\u5efa\u3001\u590d\u5236\u3001\u5220\u9664\u3001\u6d41\u5173\u95ed\uff0c\u4e0d\u7528\u624b\u52a8\u5173\u95ed IO \u6d41\uff0c\u81ea\u52a8\u91ca\u653e\u8d44\u6e90\uff1b<\/li>\n\n\n\n
  2. Validator<\/strong>\uff1a\u624b\u673a\u53f7\u3001\u90ae\u7bb1\u3001IP \u5730\u5740\u6b63\u5219\u6821\u9a8c\uff0cValidator.isMobile(\"138xxxx1234\")<\/code>\u76f4\u63a5\u5224\u65ad\uff1b<\/li>\n\n\n\n
  3. QrCodeUtil<\/strong>\uff1a\u5feb\u901f\u751f\u6210\u4e8c\u7ef4\u7801\uff0c\u4e0d\u7528\u5f15\u5165\u7b2c\u4e09\u65b9\u4e8c\u7ef4\u7801\u4f9d\u8d56\uff1b<\/li>\n\n\n\n
  4. ZipUtil<\/strong>\uff1a\u6587\u4ef6\u5939\u6279\u91cf\u538b\u7f29\u89e3\u538b\uff0c\u5904\u7406\u9644\u4ef6\u6253\u5305\u8d85\u65b9\u4fbf\u3002<\/li>\n<\/ol>\n\n\n\n
    <\/p>\n","protected":false},"excerpt":{"rendered":"
    \u65e5\u5e38\u505a Java \u540e\u7aef\u5f00\u53d1\u65f6\uff0c\u6211\u4eec\u603b\u4f1a\u53cd\u590d\u5199\u7c7b\u578b\u8f6c\u6362\u3001\u65e5\u671f\u5904\u7406\u3001\u6587\u4ef6\u8bfb\u5199\u3001\u624b\u673a\u53f7\u6821\u9a8c\u8fd9\u7c7b\u901a\u7528\u5de5\u5177\u65b9\u6cd5\uff0c\u6bcf\u6b21\u65b0\u5efa<\/p>\n
    \n\t\t\t\t Read More <\/span> <\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":1618,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[15],"class_list":["post-1590","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1590"}],"version-history":[{"count":5,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1590\/revisions"}],"predecessor-version":[{"id":1619,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1590\/revisions\/1619"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/1618"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}