hutool 工具类基本使用教程

public static void test(){
        JavaEntity javaEntity = new JavaEntity();
        javaEntity.setName("张三");
        //  对象转换为Map 输出结果 {name=张三, address=null}
        Map map = BeanUtil.beanToMap(javaEntity);
        System.out.println(map);
    }

//-------------------------------------------------------------------------------------------------------------------------------- NORMal
    
    public final static String NORM_DATE_PATTERN = "yyyy-MM-dd";
    
    public final static FastDateFormat NORM_DATE_FORMAT = FastDateFormat.getInstance(NORM_DATE_PATTERN);
    
    
    public final static String NORM_TIME_PATTERN = "HH:mm:ss";
    
    public final static FastDateFormat NORM_TIME_FORMAT = FastDateFormat.getInstance(NORM_TIME_PATTERN);
 
    
    public final static String NORM_DATETIME_MINUTE_PATTERN = "yyyy-MM-dd HH:mm";
    
    public final static FastDateFormat NORM_DATETIME_MINUTE_FORMAT = FastDateFormat.getInstance(NORM_DATETIME_MINUTE_PATTERN);
 
    
    public final static String NORM_DATETIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
    
    public final static FastDateFormat NORM_DATETIME_FORMAT = FastDateFormat.getInstance(NORM_DATETIME_PATTERN);

 String sign = SecureUtil.md5(append.toString());
 System.out.println(sign);

  String result = HttpUtil.post("https://fpdk.beijing.chinatax.Gov.cn/NSbsqWW/pltj.do", map);

 List<List<String>> partitionList = Lists.partition(valList, 30);

  // 字符串转换为int类型
        System.out.println(Convert.toInt("3"));

String[] b = {"1", "2", "3", "4"};
System.out.println(Convert.toList(b));

  // 转换时间
 String date = "2020-05-06";
 System.out.println(Convert.toDate(date));

 // 半角转全角
String num = "123456";
System.out.println(Convert.toSBC(num));
// 全角转半角
String num1 = "１２３４５６";
System.out.println(Convert.toDBC(num1));

 //Unicode 字符串转换
String con = "\\u5468\\u516d\\u8981\\u559d\\u9189";
System.out.println(Convert.unicodeToStr(con));
 
// 字符串转换为Unicode
System.out.println(Convert.strToUnicode("Hutool 挺好"));

// 毫秒转换为分钟
 long a = 19299292;
 long minutes = Convert.convertTime(a, TimeUnit.MILLISECONDS,TimeUnit.MINUTES);
 System.out.println(minutes);

 // 金额转换为人民币大写
 double a = 67556.32;
System.out.println(Convert.digitToChinese(a));

  TimeInterval timer = DateUtil.timer();
  // 执行过程
  ConVertTest();
  System.out.println(timer.interval());

  // 生成二维码
        QrCodeUtil.generate("https://hutool.cn/", 300, 300, FileUtil.file("d:/qrcode.jpg"));