Apache Shiro教程（3）

梦里梦外; 2024-03-30 16:07 66阅读 0赞

shiro自定义realms及加密md5+salt教程

#### 1、添加pom 文件 ####

<dependency>
          <groupId>org.apache.shiro</groupId>
          <artifactId>shiro-spring</artifactId>
          <version>1.9.1</version>
    </dependency>

#### 2、创建realms自定义文件 ####

#### 3、创建测试shiro文件 ####

public class TestCustomerRealm {
        
        public static void main(String[] args) {
        
            // 1、c创建 安全管理器
            DefaultSecurityManager defaultSecurityManager = new DefaultSecurityManager();
    
            // 2、设置自定义realms 装配realms
            defaultSecurityManager.setRealm(new AuthenticateCustomeRealms());
    
            //3、设置安全管理器
            SecurityUtils.setSecurityManager(defaultSecurityManager);
    
            //4、获取主体 subject
            Subject subject = SecurityUtils.getSubject();
    
            //5、验证登陆
            // 5.1、获取token
            UsernamePasswordToken usernamePasswordToken = new UsernamePasswordToken("xiaochen","123");
            try {
        
                System.out.println("登陆前："+subject.isAuthenticated());
                subject.login(usernamePasswordToken);
                System.out.println("登陆后："+subject.isAuthenticated());
    
            }catch (IncorrectCredentialsException exception){
        
                    System.out.print("密码错误");
                    exception.printStackTrace();
            } catch(Exception e){
        
                e.printStackTrace();
            }
    
        }

#### 4、运行结果 ####

### ![20220902.png][] ###

#### 5、MD5加密算法 ####

> 特点： md5 算法不可逆，无论内容相同，执行多少次md5结果都相同

1.  设置main java文件

> 步骤： 创建安全管理器、装配自定义realms、创建安全工具类、登陆  
> 此处设置的自定义realms 完成的功能是 md5+salt+hash散列12次,需要将realms自定义类文件设置匹配器，在匹配中设置salt+md5+hash散列 md5\\散列为HashedCredentialsMatcher匹配器中设置md5\\散列, salt为自定义reamls中进行设置

import com.shrio.srpingbootshrio.realm.AuthorizingRealmMd5Customer;
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.IncorrectCredentialsException;
    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;
    
    
    public class TestAuthorizingRealmMd5 {
        
        public static void main(String[] args) {
        
            // 1、创建安全管理器
            DefaultSecurityManager securityManager = new DefaultSecurityManager();
    
            // 2、封装自定义 realm
            AuthorizingRealmMd5Customer authorizingRealmMd5Customer = new AuthorizingRealmMd5Customer();
                // 2.1、设置md5加密匹配器
            HashedCredentialsMatcher credentialsMatcher = new HashedCredentialsMatcher();
            credentialsMatcher.setHashAlgorithmName("md5");
                // 2.1、设置 散列次数
            credentialsMatcher.setHashIterations(12);
    
            authorizingRealmMd5Customer.setCredentialsMatcher(credentialsMatcher);
            securityManager.setRealm(authorizingRealmMd5Customer);
    
            // 3、将安全管理器注入安全工具类
            SecurityUtils.setSecurityManager(securityManager);
    
            // 4、获取主体
            Subject subject = SecurityUtils.getSubject();
    
            // 5、登陆验证
            UsernamePasswordToken usernamePasswordToken = new UsernamePasswordToken("xiaoli","123");
            try {
        
                System.out.println("登陆前："+subject.isAuthenticated());
                subject.login(usernamePasswordToken);
                System.out.println("登陆后："+subject.isAuthenticated());
    
            }catch (IncorrectCredentialsException exception){
        
                System.out.print("密码错误");
                exception.printStackTrace();
            } catch(Exception e){
        
                e.printStackTrace();
            }
        }
    }

1.  设置自定义realms文件

> 此处的reamls类中需要设置 ByteSource.Util.bytes(“123”)->salt

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;
    
    public class AuthorizingRealmMd5Customer extends AuthorizingRealm{
        
        //授权
        @Override
        protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        
            return null;
        }
        //认证
        @Override
        protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        
            Object principal = authenticationToken.getPrincipal();
    
            if ("xiaoli".equals(principal)){
        
                // 未加salt
                // SimpleAuthenticationInfo simpleAuthenticationInfo = new SimpleAuthenticationInfo(principal,"202cb962ac59075b964b07152d234b70",this.getName());
                // 加 salt
                //SimpleAuthenticationInfo simpleAuthenticationInfo = new SimpleAuthenticationInfo(principal,"4297f44b13955235245b2497399d7a93", ByteSource.Util.bytes("123"),this.getName());
                // 加 salt + 散列次数
                SimpleAuthenticationInfo simpleAuthenticationInfo = new SimpleAuthenticationInfo(principal,"8e1da37657ac12e4bc205eb6abcb60bb", ByteSource.Util.bytes("123"),this.getName());
                return simpleAuthenticationInfo;
            }
    
            return null;
        }
    }

1.  运行

登陆前：false
    
    登陆后：true

[20220902.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/30/a8fd0ed1655448fcbf383c7eb2ada3bd.png