Java环境下shiro的测试-认证与授权

it2022-05-06  0

Java环境下shiro的测试

1.导入依赖的核心jar包

<dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-core</artifactId> <version>1.3.2</version> </dependency>

2.认证程序

2.1 构建users配置文件 xxx.ini doGetAuthenticationInfo方法从该配置文件中获取数据与token中比对

[users] test=123456 lisi=123456

测试程序

public class TestShiro { public static void main(String[] args) { //获取安全管理器工厂 IniSecurityManagerFactory iniSecurityManagerFactory = new IniSecurityManagerFactory("classpath:shiro.ini"); //获取安全管理器 SecurityManager securityManager = iniSecurityManagerFactory.getInstance(); //set认证器 SecurityUtils.setSecurityManager(securityManager); //subject发起认证,获取subject Subject subject = SecurityUtils.getSubject(); AuthenticationToken authenticationToken = new UsernamePasswordToken("test","123456"); //认证失败会抛出异常 密码:CredentialsException 账户:UnknownAccountException try { subject.login(authenticationToken); } catch (AuthenticationException e) { e.printStackTrace(); } //当前subject是否认证通过 boolean authenticated = subject.isAuthenticated(); System.out.println(authenticated); } }

认证流程:

token携带身份和凭证信息--->subject发起认证--->SimpleAccountRealm(doGetAuthenticationInfo)获取配置文件中的用户信息---->CredentialsMatcher接口的实现类SimpleCredentialsMatcher:doCredentialsMatch方法对配置文件中的信息与token携带的信息进行比对--->认证成功或者失败。

3.Shiro框架中的关键对象:

AuthenticatingRealm //抽象类 //3.关键属性 该属性为凭证匹配器 CredentialsMatcher credentialsMatcher; //1.该方法为抽象方法 其作用使用来获取数据 protected abstract AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken var1) throws AuthenticationException; SimpleAccountRealm //2.实现了AuthenticatingRealm抽象方法,用来获取配置文件中的用户信息,该类不做数据比对 SimpleCredentialsMatcher //4.shiro中默认的凭证匹配器 public boolean doCredentialsMatch(AuthenticationToken token, AuthenticationInfo info) { Object tokenCredentials = this.getCredentials(token); Object accountCredentials = this.getCredentials(info); return this.equals(tokenCredentials, accountCredentials); }

必须要知道的类与接口,不然很难理解自定义Realm时属性为什么设置,使用哪种实现类方法等等:

以下代码或者截图贴出最重要的地方.

类继承关系

AuthenticatingRealm类

abstract class AuthenticatingRealm{ //凭证匹配器 接口,其实现类做数据比对 private CredentialsMatcher credentialsMatcher; //获取配置文件中的用户信息 protected abstract AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken var1) throws AuthenticationException; }

该抽象方法返回类型AuthenticationInfo接口:

AuthorizingRealm类 抽象方法后面测试授权时使用

abstract class AuthorizingRealm{ // //该抽象方法 获取数据 获取授权的数据 protected abstract AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection var1); }

该抽象方法返回类型AuthorizationInfo接口:

CredentialsMatcher凭证匹配器接口:

其中:SimpleCredentialsMatcher是shiro中默认的凭证匹配器,其子类Hashxxx等都是做加密认证时使用

4.开发自定义Realm

public class MyRealm extends AuthenticatingRealm { //实现抽象方法doGetAuthenticationInfo @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { String principal =(String) authenticationToken.getPrincipal(); //查库取回User对象 SqlSession sqlSession = null; try { sqlSession = MySqlSession.getSqlSession(); } catch (IOException e) { e.printStackTrace(); } UserMapper mapper = sqlSession.getMapper(UserMapper.class); User user = mapper.queryUserByUserName(principal); AuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(principal,user.getPassword(),this.getName()); return authenticationInfo; } }

4.1通知shiro使用自定义realm

[main] #自定义 realm customRealm=com.nyist.test.MyRealm #将realm设置到securityManager securityManager.realms=$customRealm

注意:需要导入一个jar

<dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency>

5.shiro的加密认证方式

5.1.使用shiro提供的Md5Hash类为一个字符串加密进行测试

public class TestMD5 { public static void main(String[] args) { Md5Hash hash = new Md5Hash("123456","salt",1024); String s = hash.toHex(); System.out.println(s); //a18d2133f593d7b0e3ed488560404083 } }

5.2.修改配置文件,加入凭证匹配器的相关配置

[main] #自定义凭证匹配器 hashedCredentialsMatcher=org.apache.shiro.authc.credential.HashedCredentialsMatcher #凭证匹配器通知AuthenticatingRealm,由于自定义realm继承了AuthenticatingRealm,直接设置已有的MyRealm属性即可 #自定义 realm customRealm=com.nyist.test.MyRealm customRealm.credentialsMatcher=$hashedCredentialsMatcher hashedCredentialsMatcher.hashAlgorithmName=MD5 hashedCredentialsMatcher.hashIterations=1024 #将realm设置到securityManager .realms使用set方式赋值 securityManager.realms=$customRealm

坑:Caused by: java.lang.IllegalStateException: Required 'hashAlgorithmName' property has not been set. This is required to execute the hashing algorithm.

HashedCredentialsMatcher类中set方法非常规,set方法为:setHashAlgorithmName

为什么这么设置凭证匹配器?

自定义MyRealm extends AuthorizingRealm,实现两个抽象方法

AuthenticationInfo doGetAuthenticationInfo()来自于AuthenticatingRealm类,获取认证数据

AuthorizationInfo doGetAuthorizationInfo()来自于AuthorizingRealm类,获取授权数据

public class MyRealm extends AuthorizingRealm { @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { String principal =(String) authenticationToken.getPrincipal(); //userDao.queryUserByUserName SqlSession sqlSession = null; try { sqlSession = MySqlSession.getSqlSession(); } catch (IOException e) { e.printStackTrace(); } UserMapper mapper = sqlSession.getMapper(UserMapper.class); User user = mapper.queryUserByUserName(principal); /* * ByteSource.Util.bytes("salt") 盐字段来自数据库,凭证匹配器不能写死盐值 * 安全管理器可以获取到AuthenticationInfo中的盐值 对用户界面的凭证加密 * */ AuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(principal,user.getPassword(),ByteSource.Util.bytes("salt"),this.getName()); return authenticationInfo; } @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { //获取身份信息 Principal用户名、手机号、邮箱地址等 一个主体可以有多个身份,但是必须有一个主身份(Primary Principal) String primaryPrincipal = (String) principalCollection.getPrimaryPrincipal(); /* * 用户----角色----权限 * 中间表 中间表 * */ //由primaryPrincipal查库--->获得角色info ---->获取权限info SqlSession sqlSession = null; try { sqlSession = MySqlSession.getSqlSession(); } catch (IOException e) { e.printStackTrace(); } UserMapper mapper = sqlSession.getMapper(UserMapper.class); User user = mapper.queryUserByUserName(primaryPrincipal); //测试基于角色的授权 /*if (primaryPrincipal.equals(user.getUsername())){ // class SimpleAuthorizationInfo implements AuthorizationInfo SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo(); authorizationInfo.addRole("super"); return authorizationInfo; }*/ //测试基于资源的授权 if(primaryPrincipal.equals(user.getUsername())){ SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo(); authorizationInfo.addStringPermission("user:delete"); authorizationInfo.addStringPermissions(Arrays.asList("admin:delete","admin:add")); return authorizationInfo; } return null; } }

一张图看懂认证授权关系:

授权的api

基于角色

//判断当前主体是否包含此角色 boolean b = subject.hasRole("super"); List<String> list = Arrays.asList("super", "admin"); //判断当前主体是否包含某个角色 boolean[] booleans = subject.hasRoles(list); //判断当前主体是否包含全部的角色 boolean b = subject.hasAllRoles(list);

基于资源

boolean b = subject.isPermitted("admin:delete"); String[] strs={"admin:delete", "admin:add"}; boolean[] permitted = subject.isPermitted(strs); boolean permittedAll = subject.isPermittedAll(strs);

资源权限的标识符

权限字符串的规则是:“资源标识符:操作:资源实例标识符”,意思是对哪个资源的哪个实例具有什么操作,“:”是资源/操作/实例的分割符,权限字符串也可以使用*通配符。

例子:

用户创建权限:user:create,或user:create:*用户修改实例001的权限:user:update:001用户实例001的所有权限:user:*:001

转载于:https://www.cnblogs.com/mzc1997/p/10223014.html


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