Hutool 39 Review

Handling dates in Java is historically painful. Even with Java 8’s java.time API, many utility methods are missing. Hutool bridges the gap.

// Current time
Date date = DateUtil.date();
// String to Date (Smart parsing)
String dateStr = "2023-10-15 12:30:00";
Date parsedDate = DateUtil.parse(dateStr);
// Date arithmetic
Date tomorrow = DateUtil.offsetDay(date, 1);
boolean isWeekend = DateUtil.isWeekend(date);
// Formatting
String formatted = DateUtil.format(date, "yyyy/MM/dd");
 hutool 39

// Current date
Date now = DateUtil.date();
String today = DateUtil.today();
// Format
String dateStr = DateUtil.formatDateTime(new Date());
// Offset
Date newDate = DateUtil.offsetDay(new Date(), 3); Handling dates in Java is historically painful
// Between
long days = DateUtil.between(date1, date2, DateUnit.DAY);

String result = HttpUtil.get("https://api.example.com/users");
// POST JSON?
String postResult = HttpUtil.post("https://api.example.com/login", "\"user\":\"admin\"");

Making a GET or POST request in native Java is verbose. Hutool makes it a one-liner. // Current date Date now = DateUtil

// Simple GET request
String response = HttpUtil.get("https://api.example.com/data");
// POST with parameters
HashMap<String, Object> paramMap = new HashMap<>();
paramMap.put("username", "hutool");
paramMap.put("password", "123456");
String result = HttpUtil.post("https://api.example.com/login", paramMap);