添加依赖

		<dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.8.15</version></dependency><dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-ext-jdk15on</artifactId><version>1.69</version></dependency><dependency><groupId>org.bouncycastle</groupId><artifactId>bcpkix-jdk15on</artifactId><version>1.62</version></dependency><dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-jdk15on</artifactId><version>1.62</version></dependency>

启动类中注册

@SpringBootApplication
public class CWlication {public static void main(String[] args) {Security.addProvider(new BouncyCastleProvider());SpringApplication.run(CWlication.class, args);System.out.println("CWlication启动完成");}
}

使用

//摘要
SmUtil.sm3("内容")