shiro实战教程（三）-阿里云开发者社区

3.配置application.properties配置文件

server.port=8888
server.servlet.context-path=/shiro
spring.application.name=shiro
spring.mvc.view.prefix=/
spring.mvc.view.suffix=.jsp
#新增配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/shiro?characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=root
mybatis.type-aliases-package=com.baizhi.springboot_jsp_shiro.entity
mybatis.mapper-locations=classpath:com/baizhi/mapper/*.xml

4.创建entity

@Data
@Accessors(chain = true)
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private String  id;
    private String username;
    private String password;
    private String salt;
}

5.创建DAO接口

@Mapper
public interface UserDAO {
    void save(User user);
}

6.开发mapper配置文件

<insert id="save" parameterType="User" useGeneratedKeys="true" keyProperty="id">
  insert into t_user values(#{id},#{username},#{password},#{salt})
</insert>

7.开发service接口

public interface UserService {
    //注册用户方法
    void register(User user);
}

8.创建salt工具类

public class SaltUtils {
    /**
     * 生成salt的静态方法
     * @param n
     * @return
     */
    public static String getSalt(int n){
        char[] chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890!@#$%^&*()".toCharArray();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < n; i++) {
            char aChar = chars[new Random().nextInt(chars.length)];
            sb.append(aChar);
        }
        return sb.toString();
    }
}

9.开发service实现类

@Service
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDAO userDAO;
    @Override
    public void register(User user) {
        //处理业务调用dao
        //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 + salt + hash散列
        Md5Hash md5Hash = new Md5Hash(user.getPassword(),salt,1024);
        user.setPassword(md5Hash.toHex());
        userDAO.save(user);
    }
}

10.开发Controller

@Controller
@RequestMapping("user")
public class UserController {
    @Autowired
    private UserService userService;
    /**
     * 用户注册
     */
    @RequestMapping("register")
    public String register(User user) {
        try {
            userService.register(user);
            return "redirect:/login.jsp";
        }catch (Exception e){
            e.printStackTrace();
            return "redirect:/register.jsp";
        }
    }
}

11.启动项目进行注册

2.开发数据库认证

0.开发DAO

@Mapper
public interface UserDAO {
    void save(User user);
    //根据身份信息认证的方法
    User findByUserName(String username);
}

1.开发mapper配置文件

<select id="findByUserName" parameterType="String" resultType="User">
  select id,username,password,salt from t_user
  where username = #{username}
</select>

2.开发Service接口

public interface UserService {
    //注册用户方法
    void register(User user);
    //根据用户名查询业务的方法
    User findByUserName(String username);
}

3.开发Service实现类

@Service("userService")
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDAO userDAO;
    @Override
    public User findByUserName(String username) {
        return userDAO.findByUserName(username);
    }
}

4.开发在工厂中获取bean对象的工具类

@Component
public class ApplicationContextUtils implements ApplicationContextAware {
    private static ApplicationContext context;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.context = applicationContext;
    }
    //根据bean名字获取工厂中指定bean 对象
    public static Object getBean(String beanName){
        return context.getBean(beanName);
    }
}

5.修改自定义realm

 @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("==========================");
        //根据身份信息
        String principal = (String) token.getPrincipal();
        //在工厂中获取service对象
        UserService userService = (UserService) ApplicationContextUtils.getBean("userService");
        //根据身份信息查询
        User user = userService.findByUserName(principal);
        if(!ObjectUtils.isEmpty(user)){
            //返回数据库信息
            return new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(), 
                                               ByteSource.Util.bytes(user.getSalt()),this.getName());
        }
        return null;
    }

6.修改ShiroConfig中realm使用凭证匹配器以及hash散列

@Bean
public Realm getRealm(){
  CustomerRealm customerRealm = new CustomerRealm();
  //设置hashed凭证匹配器
  HashedCredentialsMatcher credentialsMatcher = new HashedCredentialsMatcher();
  //设置md5加密
  credentialsMatcher.setHashAlgorithmName("md5");
  //设置散列次数
  credentialsMatcher.setHashIterations(1024);
  customerRealm.setCredentialsMatcher(credentialsMatcher);
  return customerRealm;
}

6.8 授权实现

0.页面资源授权

<%@taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>
<shiro:hasAnyRoles name="user,admin">
        <li><a href="">用户管理</a>
            <ul>
                <shiro:hasPermission name="user:add:*">
                <li><a href="">添加</a></li>
                </shiro:hasPermission>
                <shiro:hasPermission name="user:delete:*">
                    <li><a href="">删除</a></li>
                </shiro:hasPermission>
                <shiro:hasPermission name="user:update:*">
                    <li><a href="">修改</a></li>
                </shiro:hasPermission>
                <shiro:hasPermission name="user:find:*">
                    <li><a href="">查询</a></li>
                </shiro:hasPermission>
            </ul>
        </li>
        </shiro:hasAnyRoles>
        <shiro:hasRole name="admin">
            <li><a href="">商品管理</a></li>
            <li><a href="">订单管理</a></li>
            <li><a href="">物流管理</a></li>
        </shiro:hasRole>

1.代码方式授权

@RequestMapping("save")
public String save(){
  System.out.println("进入方法");
  //获取主体对象
  Subject subject = SecurityUtils.getSubject();
  //代码方式
  if (subject.hasRole("admin")) {
    System.out.println("保存订单!");
  }else{
    System.out.println("无权访问!");
  }
  //基于权限字符串
  //....
  return "redirect:/index.jsp";
}

2.方法调用授权

@RequiresRoles 用来基于角色进行授权
@RequiresPermissions 用来基于权限进行授权
@RequiresRoles(value={"admin","user"})//用来判断角色  同时具有 admin user
@RequiresPermissions("user:update:01") //用来判断权限字符串
@RequestMapping("save")
public String save(){
  System.out.println("进入方法");
  return "redirect:/index.jsp";
}

3.授权数据持久化

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for t_pers
-- ----------------------------
DROP TABLE IF EXISTS `t_pers`;
CREATE TABLE `t_pers` (
  `id` int(6) NOT NULL AUTO_INCREMENT,
  `name` varchar(80) DEFAULT NULL,
  `url` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for t_role
-- ----------------------------
DROP TABLE IF EXISTS `t_role`;
CREATE TABLE `t_role` (
  `id` int(6) NOT NULL AUTO_INCREMENT,
  `name` varchar(60) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for t_role_perms
-- ----------------------------
DROP TABLE IF EXISTS `t_role_perms`;
CREATE TABLE `t_role_perms` (
  `id` int(6) NOT NULL,
  `roleid` int(6) DEFAULT NULL,
  `permsid` int(6) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for t_user
-- ----------------------------
DROP TABLE IF EXISTS `t_user`;
CREATE TABLE `t_user` (
  `id` int(6) NOT NULL AUTO_INCREMENT,
  `username` varchar(40) DEFAULT NULL,
  `password` varchar(40) DEFAULT NULL,
  `salt` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for t_user_role
-- ----------------------------
DROP TABLE IF EXISTS `t_user_role`;
CREATE TABLE `t_user_role` (
  `id` int(6) NOT NULL,
  `userid` int(6) DEFAULT NULL,
  `roleid` int(6) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
SET FOREIGN_KEY_CHECKS = 1;

4.创建dao方法

 //根据用户名查询所有角色
User findRolesByUserName(String username);
//根据角色id查询权限集合
List<Perms> findPermsByRoleId(String id);

5.mapper实现

<resultMap id="userMap" type="User">
  <id column="uid" property="id"/>
  <result column="username" property="username"/>
  <!--角色信息-->
  <collection property="roles" javaType="list" ofType="Role">
    <id column="id" property="id"/>
    <result column="rname" property="name"/>
  </collection>
</resultMap>
<select id="findRolesByUserName" parameterType="String" resultMap="userMap">
  SELECT u.id uid,u.username,r.id,r.NAME rname
  FROM t_user u
  LEFT JOIN t_user_role ur
  ON u.id=ur.userid
  LEFT JOIN t_role r
  ON ur.roleid=r.id
  WHERE u.username=#{username}
</select>
<select id="findPermsByRoleId" parameterType="String" resultType="Perms">
  SELECT p.id,p.NAME,p.url,r.NAME
  FROM t_role r
  LEFT JOIN t_role_perms rp
  ON r.id=rp.roleid
  LEFT JOIN t_perms p ON rp.permsid=p.id
  WHERE r.id=#{id}
</select>

6.Service接口

//根据用户名查询所有角色
User findRolesByUserName(String username);
//根据角色id查询权限集合
List<Perms> findPermsByRoleId(String id);

7.Service实现

@Override
public List<Perms> findPermsByRoleId(String id) {
  return userDAO.findPermsByRoleId(id);
}
@Override
public User findRolesByUserName(String username) {
  return userDAO.findRolesByUserName(username);
}

8.修改自定义realm

public class CustomerRealm extends AuthorizingRealm {
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        //获取身份信息
        String primaryPrincipal = (String) principals.getPrimaryPrincipal();
        System.out.println("调用授权验证: "+primaryPrincipal);
        //根据主身份信息获取角色 和 权限信息
        UserService userService = (UserService) ApplicationContextUtils.getBean("userService");
        User user = userService.findRolesByUserName(primaryPrincipal);
        //授权角色信息
        if(!CollectionUtils.isEmpty(user.getRoles())){
            SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
            user.getRoles().forEach(role->{
                simpleAuthorizationInfo.addRole(role.getName());
                //权限信息
                List<Perms> perms = userService.findPermsByRoleId(role.getId());
                if(!CollectionUtils.isEmpty(perms)){
                    perms.forEach(perm->{
                        simpleAuthorizationInfo.addStringPermission(perm.getName());
                    });
                }
            });
            return simpleAuthorizationInfo;
        }
        return null;
    }
}

9.启动测试

6.9 使用CacheManager

1.Cache 作用

Cache 缓存: 计算机内存中一段数据
作用: 用来减轻DB的访问压力,从而提高系统的查询效率
流程

2.使用shiro中默认EhCache实现缓存

1.引入依赖

<!--引入shiro和ehcache-->
<dependency>
  <groupId>org.apache.shiro</groupId>
  <artifactId>shiro-ehcache</artifactId>
  <version>1.5.3</version>
</dependency>

2.开启缓存

//3.创建自定义realm
    @Bean
    public Realm getRealm(){
        CustomerRealm customerRealm = new CustomerRealm();
        //修改凭证校验匹配器
        HashedCredentialsMatcher credentialsMatcher = new HashedCredentialsMatcher();
        //设置加密算法为md5
        credentialsMatcher.setHashAlgorithmName("MD5");
        //设置散列次数
        credentialsMatcher.setHashIterations(1024);
        customerRealm.setCredentialsMatcher(credentialsMatcher);
        //开启缓存管理器
        customerRealm.setCachingEnabled(true);
        customerRealm.setAuthorizationCachingEnabled(true);
        customerRealm.setAuthorizationCachingEnabled(true);
        customerRealm.setCacheManager(new EhCacheManager());
        return customerRealm;
    }

3.启动刷新页面进行测试

注意:如果控制台没有任何sql展示说明缓存已经开启

3.shiro中使用Redis作为缓存实现

1.引入redis依赖

<!--redis整合springboot-->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

2.配置redis连接

spring.redis.port=6379
spring.redis.host=localhost
spring.redis.database=0

3.启动redis服务

➜  bin ls
dump.rdb        redis-check-aof redis-cli       redis-server    redis.conf
redis-benchmark redis-check-rdb redis-sentinel  redis-trib.rb
➜  bin ./redis-server redis.conf

4.开发RedisCacheManager

public class RedisCacheManager implements CacheManager {
    @Override
    public <K, V> Cache<K, V> getCache(String cacheName) throws CacheException {
        System.out.println("缓存名称: "+cacheName);
        return new RedisCache<K,V>(cacheName);
    }
}

5.开RedisCache实现

public class RedisCache<K,V> implements Cache<K,V> {
    private String cacheName;
    public RedisCache() {
    }
    public RedisCache(String cacheName) {
        this.cacheName = cacheName;
    }
    @Override
    public V get(K k) throws CacheException {
        System.out.println("获取缓存:"+ k);
        return (V) getRedisTemplate().opsForHash().get(this.cacheName,k.toString());
    }
    @Override
    public V put(K k, V v) throws CacheException {
        System.out.println("设置缓存key: "+k+" value:"+v);
        getRedisTemplate().opsForHash().put(this.cacheName,k.toString(),v);
        return null;
    }
    @Override
    public V remove(K k) throws CacheException {
        return (V) getRedisTemplate().opsForHash().delete(this.cacheName,k.toString());
    }
    @Override
    public v remove(k k) throws CacheException {
        return (v) getRedisTemplate().opsForHash().delete(this.cacheName,k.toString());
    }
    @Override
    public void clear() throws CacheException {
        getRedisTemplate().delete(this.cacheName);
    }
    @Override
    public int size() {
        return getRedisTemplate().opsForHash().size(this.cacheName).intValue();
    }
    @Override
    public Set<k> keys() {
        return getRedisTemplate().opsForHash().keys(this.cacheName);
    }
    @Override
    public Collection<v> values() {
        return getRedisTemplate().opsForHash().values(this.cacheName);
    }
    private RedisTemplate getRedisTemplate(){
        RedisTemplate redisTemplate = (RedisTemplate) ApplicationContextUtils.getBean("redisTemplate");
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }
    //封装获取redisTemplate
    private RedisTemplate getRedisTemplate(){
        RedisTemplate redisTemplate = (RedisTemplate) ApplicationContextUtils.getBean("redisTemplate");
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }
}

6.启动项目测试发现报错

错误解释: 由于shiro中提供的simpleByteSource实现没有实现序列化,所有在认证时出现错误信息

解决方案: 需要自动salt实现序列化

自定义salt实现序列化

//自定义salt实现  实现序列化接口
public class MyByteSource extends SimpleByteSource implements Serializable {
    public MyByteSource(String string) {
        super(string);
    }
}

在realm中使用自定义salt

@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
  System.out.println("==========================");
  //根据身份信息
  String principal = (String) token.getPrincipal();
  //在工厂中获取service对象
  UserService userService = (UserService) ApplicationContextUtils.getBean("userService");
  User user = userService.findByUserName(principal);
  if(!ObjectUtils.isEmpty(user)){
    return new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(), 
                                      new MyByteSource(user.getSalt()),this.getName());
  }
  return null;
}

7.再次启动测试,发现可以成功放入redis缓存

4. 加入验证码验证

0.开发页面加入验证码

开发控制器

@RequestMapping("getImage")
public void getImage(HttpSession session, HttpServletResponse response) throws IOException {
  //生成验证码
  String code = VerifyCodeUtils.generateVerifyCode(4);
  //验证码放入session
  session.setAttribute("code",code);
  //验证码存入图片
  ServletOutputStream os = response.getOutputStream();
  response.setContentType("image/png");
  VerifyCodeUtils.outputImage(220,60,os,code);
}

放行验证码

开发页面

修改认证流程

@RequestMapping("login")
    public String login(String username, String password,String code,HttpSession session) {
        //比较验证码
        String codes = (String) session.getAttribute("code");
        try {
            if (codes.equalsIgnoreCase(code)){
                //获取主体对象
                Subject subject = SecurityUtils.getSubject();
                    subject.login(new UsernamePasswordToken(username, password));
                    return "redirect:/index.jsp";
            }else{
                throw new RuntimeException("验证码错误!");
            }
        } catch (UnknownAccountException e) {
            e.printStackTrace();
            System.out.println("用户名错误!");
        } catch (IncorrectCredentialsException e) {
            e.printStackTrace();
            System.out.println("密码错误!");
        }catch (Exception e){
            e.printStackTrace();
            System.out.println(e.getMessage());
        }
        return "redirect:/login.jsp";
    }

修改salt不能序列化的问题

@RequestMapping("login")
    public String login(String username, String password,String code,HttpSession session) {
        //比较验证码
        String codes = (String) session.getAttribute("code");
        try {
            if (codes.equalsIgnoreCase(code)){
                //获取主体对象
                Subject subject = SecurityUtils.getSubject();
                    subject.login(new UsernamePasswordToken(username, password));
                    return "redirect:/index.jsp";
            }else{
                throw new RuntimeException("验证码错误!");
            }
        } catch (UnknownAccountException e) {
            e.printStackTrace();
            System.out.println("用户名错误!");
        } catch (IncorrectCredentialsException e) {
            e.printStackTrace();
            System.out.println("密码错误!");
        }catch (Exception e){
            e.printStackTrace();
            System.out.println(e.getMessage());
        }
        return "redirect:/login.jsp";
    }

7.Shiro整合springboot之thymeleaf权限控制

1.引入扩展依赖

<dependency>
    <groupId>com.github.theborakompanioni</groupId>
    <artifactId>thymeleaf-extras-shiro</artifactId>
    <version>2.0.0</version>
</dependency>

2.页面中引入命名空间

xmlns:shiro=“http://www.pollix.at/thymeleaf/shiro”
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:shiro="http://www.pollix.at/thymeleaf/shiro">
......

3.常见权限控制标签使用

//自定义salt实现  实现序列化接口
public class MyByteSource implements ByteSource,Serializable {
    private  byte[] bytes;
    private String cachedHex;
    private String cachedBase64;
    //加入无参数构造方法实现序列化和反序列化
    public MyByteSource(){
    }
    public MyByteSource(byte[] bytes) {
        this.bytes = bytes;
    }
    public MyByteSource(char[] chars) {
        this.bytes = CodecSupport.toBytes(chars);
    }
    public MyByteSource(String string) {
        this.bytes = CodecSupport.toBytes(string);
    }
    public MyByteSource(ByteSource source) {
        this.bytes = source.getBytes();
    }
    public MyByteSource(File file) {
        this.bytes = (new MyByteSource.BytesHelper()).getBytes(file);
    }
    public MyByteSource(InputStream stream) {
        this.bytes = (new MyByteSource.BytesHelper()).getBytes(stream);
    }
    public static boolean isCompatible(Object o) {
        return o instanceof byte[] || o instanceof char[] || o instanceof String || o instanceof ByteSource || o instanceof File || o instanceof InputStream;
    }
    public byte[] getBytes() {
        return this.bytes;
    }
    public boolean isEmpty() {
        return this.bytes == null || this.bytes.length == 0;
    }
    public String toHex() {
        if (this.cachedHex == null) {
            this.cachedHex = Hex.encodeToString(this.getBytes());
        }
        return this.cachedHex;
    }
    public String toBase64() {
        if (this.cachedBase64 == null) {
            this.cachedBase64 = Base64.encodeToString(this.getBytes());
        }
        return this.cachedBase64;
    }
    public String toString() {
        return this.toBase64();
    }
    public int hashCode() {
        return this.bytes != null && this.bytes.length != 0 ? Arrays.hashCode(this.bytes) : 0;
    }
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        } else if (o instanceof ByteSource) {
            ByteSource bs = (ByteSource)o;
            return Arrays.equals(this.getBytes(), bs.getBytes());
        } else {
            return false;
        }
    }
    private static final class BytesHelper extends CodecSupport {
        private BytesHelper() {
        }
        public byte[] getBytes(File file) {
            return this.toBytes(file);
        }
        public byte[] getBytes(InputStream stream) {
            return this.toBytes(stream);
        }
    }
}

4.加入shiro的方言配置

页面标签不起作用一定要记住加入方言处理

@Bean(name = "shiroDialect")
public ShiroDialect shiroDialect(){
  return new ShiroDialect();
}

shiro实战教程（三）