SpringBoot Hutool各种用法示例小结_Java

第一步：引入依赖

        <dependency>
            <groupid>cn.hutool</groupid>
            <artifactid>hutool-parent</artifactid>
            <version>5.7.17</version>
        </dependency>

第二步：各种用法

①生成随机数

//生成验证码
string s = randomutil.randomnumbers(6);
system.out.println("s = " + s);

②两个对象之间信息过滤

//两个对象过滤信息
user user=new user(1l,"zzl",18,"12345678912");
userdto userdto = beanutil.copyproperties(user, userdto.class);
system.out.println("userdto = " + userdto);

③生成uuid

//生成uuid
//生成的uuid是带-的字符串，类似于：a5c8a5e8-df2b-4706-bea4-08d0939410e3
string uuid = idutil.randomuuid();
system.out.println("uuid = " + uuid);
//生成的是不带-的字符串，类似于：b17f24ff026d40949c85a24f4f375d42
string simpleuuid = idutil.simpleuuid();
system.out.println("simpleuuid = " + simpleuuid);

④md5加密

//md5加密
string str = "123456";
string md5str = secureutil.md5(str);
system.out.println("md5str = " + md5str);

⑤序列化(即json字符串与对象之间的转换)

//json字符串与对象之间的序列化
user user1=new user(1l,"zzl",18,"12345678912");
system.out.println("user1 = " + user1);
//对象转换为json字符串
string object_json = jsonutil.parse(user1).tostring();
system.out.println("object_json = " + object_json);
//json字符串转为对象
user user2 = jsonutil.tobean(object_json, user.class);
system.out.println("user2 = " + user2);
//list转换为json字符串
string s = jsonutil.tojsonstr(list);
//json字符串转为list
list<shoptype> shoptypes = jsonutil.tolist(shop_type_jsons, shoptype.class);
system.out.println("从redis中查到的数据：shoptypes = " + shoptypes);

⑥字段检验器

//判断是否为邮箱地址
 boolean result = validator.isemail("zuozewei@hotmail.com");
 log.info("validator isemail:{}", result);
 //判断是否为手机号码
 result = validator.ismobile("18911111111");
 log.info("validator ismobile:{}", result);
 //判断是否为汉字
 result = validator.ischinese("你好");
 log.info("validator ischinese:{}", result);
 //判断是否为身份证号码（18位中国）
 result = validator.iscitizenid("123456");
 log.info("validator iscitizenid:{}", result);
 //判断是否为url
 result = validator.isurl("http://www.7d.com");
 log.info("validator isurl:{}", result);
 //判断字符串是否为数字
 result = validator.isnumber("4444444");
 system.out.println("result = " + result);

想了解了解更多可以去hutool官网

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