SpringBoot与Shrio（二）MD5随机盐散列版认证_spring boot 生成salt-优快云博客

索引

实现简易版注册+完善登录

依赖

依赖加入mybatis、mysql驱动、druid数据源

		 <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.22</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.3</version>
        </dependency>

数据库

数据库字段，salt是盐

yml略，加上mybatis和数据源的配置即可
实体类，对应数据库字段

mapper接口

void save(User user);

xml

 insert into test value(#{id},#{name},#{pass},#{salt})

service

void register(User user);

serviceImpl

	@Autowired
    private UserMapper userMapper;


    @Override
    public void register(User user) {


        //业务
        //1.生成随机盐
        String salt = SaltUtils.getSalt(8);
        //2.将随机盐保存到数据
        user.setSalt(salt);
        //3.明文密码进行MD5+盐+散列
        Md5Hash md5Hash = new Md5Hash(user.getPass(),salt,1024);
        user.setPass(md5Hash.toHex());
        userMapper.save(user);
    }

SaltUtils工具类（生成随机盐）

每次从char数组里随机拿n个字符作为随机盐

public class SaltUtils {
    /**
     * 生成salt的静态方法
     */
    public static String getSalt(int n){
        char[] chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz~!@#$%^&*()_+".toCharArray();
        int length = chars.length;
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < n; i++){
            char achar = chars[new Random().nextInt(length)];
            sb.append(achar);
        }
        return sb.toString();
    }

   /* public static void main(String[] args) {
        System.out.println(getSalt(8));
    }*/
}

controller略，调service，暴露请求
请求传递User后数据库数据：
基于MD5+盐+散列的注册就完成了

完善登录

上一篇自定义realm的认证是假装调用dao，这次给它用真的dao完成认证
mapper加上一个根据名字查用户的方法

User findByName(String name);

xml

select id,name,pass,salt from test where name = #{name}

service和serviceImpl略
看下之前的自定义realm

public class CustomerRealm extends AuthorizingRealm {
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        return null;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        String principal = (String) authenticationToken.getPrincipal();
        if("zhaoshanhe".equals(principal)){
            return new SimpleAuthenticationInfo(principal,"123456",getName());
        }
        return null;
    }
}

下边就完善它

public class CustomerRealm extends AuthorizingRealm {
    @Autowired
    private UserService userService;

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

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        String principal = (String) authenticationToken.getPrincipal();

        User user = userService.findByName(principal);

        if (!ObjectUtils.isEmpty(user)){
            return new SimpleAuthenticationInfo(user.getName(),user.getPass(), ByteSource.Util.bytes(user.getSalt()),getName());
        }

        return null;
    }
}

因为上边注册的时候用了MD5+盐+散列，所以还要改掉Shiro配置类里的getRealm方法。

//创建自定义Realm
    @Bean("customerRealm")
    public Realm getRealm(){
        CustomerRealm customerRealm = new CustomerRealm();
        //修改凭证校验匹配器
        HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();
        //设置算法为MD5
        hashedCredentialsMatcher.setHashAlgorithmName("md5");
        //设置散列次数
        hashedCredentialsMatcher.setHashIterations(1024);

        customerRealm.setCredentialsMatcher(hashedCredentialsMatcher);
        return customerRealm;
    }