<!-- ini整合方式的依赖       -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
            <version>1.9.0</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.2</version>
        </dependency>

package com.shrimpking;

import org.apache.shiro.crypto.hash.Md5Hash;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

/**
 * Created by IntelliJ IDEA.
 *
 * @Author : Shrimpking
 * @create 2023/10/2 17:35
 */
@SpringBootTest
public class MD5Test
{
    @Test
    public void test(){
        String password = "1234";
        //使用md5，创建加密
        Md5Hash md5Hash1 = new Md5Hash(password);
        System.out.println(password + "加密后= " + md5Hash1.toHex());
        //1234加密后= 81dc9bdb52d04dc20036dbd8313ed055

        String salt = "abc";
        //使用md5，加盐，创建加密
        Md5Hash md5Hash2 = new Md5Hash(password,salt);
        System.out.println(password + "加密加盐后 = " + md5Hash2);
        //1234加密加盐后 = a141c47927929bc2d1fb6d336a256df4

        //使用md5，加盐，散列次数
        Md5Hash md5Hash3 = new Md5Hash(password,slat,1024);
        System.out.println(password + "加密加盐1024次后 = " + md5Hash3);
        //1234加密加盐1024次后 = f26da6ea39b7e049d1c816585d867893

    }

}

package com.shrimpking.method2;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;

/**
 * Created by IntelliJ IDEA.
 *
 * @Author : Shrimpking
 * @create 2023/10/2 18:04
 * 使用md5加密的自定义realm类
 */
public class CustomerMD5Realm extends AuthorizingRealm
{

    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection)
    {
        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException
    {
        //获取身份信息
        String principal = authenticationToken.getPrincipal().toString();
        //获取凭证,模拟从数据库中获取
        String password = "a141c47927929bc2d1fb6d336a256df4";
        //加密盐
        String salt = "abc";
        //判断
        if("zhangsan".equals(principal)){
            //参数1，身份信息
            //参数2，数据库中的密码
            //参数3，加密盐
            //参数4，realm的类名称
            return new SimpleAuthenticationInfo(
                    principal,
                    password,
                    ByteSource.Util.bytes(salt),
                    getName()
            );
        }
        return null;
    }
}

package com.shrimpking;

import com.shrimpking.method2.CustomerMD5Realm;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.mgt.DefaultSecurityManager;
import org.apache.shiro.subject.Subject;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

/**
 * Created by IntelliJ IDEA.
 *
 * @Author : Shrimpking
 * @create 2023/10/2 18:09
 */
@SpringBootTest
public class MethodTwoTest
{
    @Test
    public void test(){
        //创建安全管理器
        DefaultSecurityManager securityManager = new DefaultSecurityManager();
        //创建自定义realm
        CustomerMD5Realm customerMD5Realm = new CustomerMD5Realm();
        //创建加密策略
        HashedCredentialsMatcher matcher = new HashedCredentialsMatcher();
        //设置加密策略
        matcher.setHashAlgorithmName("md5");
        //设置realm的加密策略
        customerMD5Realm.setCredentialsMatcher(matcher);
        //设置realm
        securityManager.setRealm(customerMD5Realm);
        //设置安全管理器
        SecurityUtils.setSecurityManager(securityManager);
        //获取用户主体
        Subject subject = SecurityUtils.getSubject();
        //创建令牌token
        AuthenticationToken token = new UsernamePasswordToken("zhangsan","1234");
        //登录认证
        try
        {
            System.out.println("认证前状态： " + subject.isAuthenticated());
            subject.login(token);
            System.out.println("登录成功");
            System.out.println("认证后状态： " + subject.isAuthenticated());
        }
        catch (UnknownAccountException e)
        {
            e.printStackTrace();
            System.out.println("认证结果：用户不存在");
        }
        catch (IncorrectCredentialsException e){
            e.printStackTrace();
            System.out.println("认证结果：密码错误");
        }

    }
}