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import cn.hutool.core.util.StrUtil;
import cn.hutool.core.collection.CollUtil;
String s = " Hutool Pro 30 ";
String trimmed = StrUtil.trim(s); // "Hutool Pro 30"
List<String> list = CollUtil.newArrayList("a","b","c");
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.date.DateTime;
DateTime now = DateUtil.date();
String formatted = DateUtil.format(now, "yyyy-MM-dd HH:mm:ss");
import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpResponse;
HttpResponse response = HttpRequest.get("https://api.example.com/data")
.header("Accept","application/json")
.timeout(5000)
.execute();
String body = response.body();
import cn.hutool.crypto.SecureUtil;
import cn.hutool.crypto.digest.DigestUtil;
String md5 = DigestUtil.md5Hex("password");
String aesKey = "1234567890123456";
byte[] encrypted = SecureUtil.aes(aesKey.getBytes()).encrypt("secret");
String decrypted = SecureUtil.aes(aesKey.getBytes()).decryptStr(encrypted);
import cn.hutool.poi.excel.ExcelWriter;
import cn.hutool.poi.excel.ExcelReader;
import java.util.List;
import java.util.Map;
ExcelWriter writer = new ExcelWriter("out.xlsx");
writer.write(new ArrayList<Map<String,Object>>() add(Map.of("name","张三","age",30)); );
writer.close();
ExcelReader reader = new ExcelReader("in.xlsx");
List<List<Object>> rows = reader.read();
reader.close();