SpringBoot整合Shiro和Redis的示例代码

demo源码

此demo用SpringBoot+Shiro简单实现了登陆、注册、认证、授权的功能，并用redis做分布式缓存提高性能。

1.准备工作

导入pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
    </parent>
    <groupId>com.ego</groupId>
    <artifactId>shirodemo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.13</version>
        </dependency>

        <!-- 引入jsp依赖 -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>

        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- shiro -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring-boot-starter</artifactId>
            <version>1.5.3</version>
        </dependency>

        <!-- mybatis plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.1</version>
        </dependency>

        <!-- Druid数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>

        <!-- Mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-ehcache</artifactId>
            <version>1.5.3</version>
        </dependency>
        <!-- 引入redis -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

    </dependencies>

</project>

配置yml文件

spring:
  # 设置视图模板为jsp
  mvc:
    view:
      prefix: /
      suffix: .jsp
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    druid:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=UTC
      username: root
      password: root
      # 监控统计拦截的filters
      filters: stat,wall,log4j,config
      # 配置初始化大小/最小/最大
      initial-size: 5
      min-idle: 5
      max-active: 20
      # 获取连接等待超时时间
      max-wait: 60000
      # 间隔多久进行一次检测，检测需要关闭的空闲连接
      time-between-eviction-runs-millis: 60000
      # 一个连接在池中最小生存的时间
      min-evictable-idle-time-millis: 300000
      validation-query: SELECT 'x'
      test-while-idle: true
      test-on-borrow: false
      test-on-return: false
      # 打开PSCache，并指定每个连接上PSCache的大小。oracle设为true，mysql设为false。分库分表较多推荐设置为false
      pool-prepared-statements: false
      max-pool-prepared-statement-per-connection-size: 20
  redis:
    host: 127.0.0.1
    port: 6379
    password: abc123456
    database: 0

mybatis-plus:
  type-aliases-package: com.ego.pojo
  configuration:
    map-underscore-to-camel-case: true

2.编写index,login,register三个JSP

<%--解决页面乱码--%>
<%@page contentType="text/html; UTF-8" pageEncoding="UTF-8" isELIgnored="false" %>
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>index</title>
</head>
<body>
    <form action="${pageContext.request.contextPath}/user/login" method="post">
        用户名:<input type="text" name="username" > <br/>
        密码  : <input type="text" name="password"> <br>
        <input type="submit" value="登录">
    </form>
</body>
</html>
<%--解决页面乱码--%>
<%@page contentType="text/html; UTF-8" pageEncoding="UTF-8" isELIgnored="false" %>
<%@taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>
<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>index</title>
</head>
<body>
<h1>系统主页</h1>
<a href="${pageContext.request.contextPath}/user/logout">退出用户</a>
<ul>
  <%-- admin角色的用户能同时拥有用户管理和订单管理的权限，user角色的用户只拥有订单管理的权限 --%>
  <shiro:hasRole name="admin">
    <li>
      <a href="">用户管理</a>
    </li>
  </shiro:hasRole>
  <%-- admin角色的用户对订单有增删改查的权限，user角色的用户只能查看订单 --%>
  <shiro:hasAnyRoles name="admin,user">
    <li>
      <a href="">订单管理</a>
      <ul>
        <shiro:hasPermission name="order:add:*">
          <li><a href="">新增</a></li>
        </shiro:hasPermission>
        <shiro:hasPermission name="order:del:*">
          <li><a href="">删除</a></li>
        </shiro:hasPermission>
        <shiro:hasPermission name="order:upd:*">
          <li><a href="">修改</a></li>
        </shiro:hasPermission>
        <shiro:hasPermission name="order:find:*">
          <li><a href="">查询</a></li>
        </shiro:hasPermission>
      </ul>
    </li>
  </shiro:hasAnyRoles>
</ul>
</body>
</html>
<%--解决页面乱码--%>
<%@page contentType="text/html; UTF-8" pageEncoding="UTF-8" isELIgnored="false" %>
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>register</title>
</head>
<body>
<h1>用户注册</h1>
<form action="${pageContext.request.contextPath}/user/register" method="post">
    用户名:<input type="text" name="username" > <br/>
    密码  : <input type="text" name="password"> <br>
    <input type="submit" value="立即注册">
</form>
</body>
</html>

3.实现User、Role、Permission三个POJO

package com.ego.pojo;
import com.baomidou.mybatisplus.annotation.*;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
 * @author 袁梦达 2019012364
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("t_user")
@ApiModel("用户实体类")
public class User implements Serializable {
    /** 数据库中设置该字段自增时该注解不能少 **/
    @TableId(type = IdType.AUTO)
    @ApiModelProperty(name = "id", value = "ID 主键")
    private Integer id;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "username", value = "用户名")
    private String username;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "password", value = "密码")
    private String password;
    @TableField(fill = FieldFill.INSERT)
    @ApiModelProperty(name = "salt", value = "盐")
    private String salt;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "age", value = "年龄")
    private Integer age;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "email", value = "邮箱")
    private String email;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "address", value = "地址")
    private String address;
    @TableField(exist = false)
    private List<Role> roles = new ArrayList<>();
}
package com.ego.pojo;
import com.baomidou.mybatisplus.annotation.*;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
 * @author 袁梦达 2019012364
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("t_role")
@ApiModel("角色实体类")
public class Role implements Serializable {
    /** 数据库中设置该字段自增时该注解不能少 **/
    @TableId(type = IdType.AUTO)
    @ApiModelProperty(name = "id", value = "ID 主键")
    private Integer id;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "name", value = "角色名称")
    private String name;
    @TableField(exist = false)
    private List<Permission> permissions = new ArrayList<>();
}
package com.ego.pojo;
import com.baomidou.mybatisplus.annotation.*;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
/**
 * @author 袁梦达 2019012364
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("t_permission")
@ApiModel("权限实体类")
public class Permission implements Serializable {
    /** 数据库中设置该字段自增时该注解不能少 **/
    @TableId(type = IdType.AUTO)
    @ApiModelProperty(name = "id", value = "ID主键")
    private Integer id;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "name", value = "权限名称")
    private String name;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @ApiModelProperty(name = "url", value = "权限菜单URL")
    private String url;
}

4.实现Controller、Service、Dao

这里dao采用了mybatis-plus

package com.ego.controller;
import com.ego.pojo.User;
import com.ego.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
 * @author 袁梦达 2019012364
 */
@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;
    /**
     * 用户登录
     * @param username
     * @param password
     * @return
     */
    @RequestMapping("/login")
    public String login(String username,String password){
        // 获取当前登录用户
        Subject subject = SecurityUtils.getSubject();
        try {
            // 执行登录操作
            subject.login(new UsernamePasswordToken(username,password));
            // 认证通过后直接跳转到index.jsp
            return "redirect:/index.jsp";
        } catch (UnknownAccountException e) {
            e.printStackTrace();
            System.out.println("用户名错误！");
        } catch (IncorrectCredentialsException e) {
            System.out.println("密码错误！");
        } catch (Exception e) {
        }
        // 如果认证失败仍然回到登录页面
        return "redirect:/login.jsp";
    }
    @RequestMapping("/logout")
    public String logout(){
        subject.logout();
        // 退出后仍然会到登录页面
     * 用户注册
     * @param user
    @RequestMapping("/register")
    public String register(User user){
            userService.register(user);
            return "redirect:/login.jsp";
        return "redirect:/register.jsp";
}
package com.ego.service.impl;
import com.ego.dao.mapper.UserMapper;
import com.ego.shiro.ShiroConstant;
import com.ego.utils.SaltUtil;
import org.apache.shiro.crypto.hash.Md5Hash;
import org.springframework.stereotype.Service;
@Service("userService")
public class UserServiceImpl implements UserService {
    private UserMapper userMapper;
    @Override
    public void register(User user) {
        //生成随机盐
        String salt = SaltUtil.getSalt(ShiroConstant.SALT_LENGTH);
        //保存随机盐
        user.setSalt(salt);
        //生成密码
        Md5Hash password = new Md5Hash(user.getPassword(), salt, ShiroConstant.HASH_ITERATORS);
        //保存密码
        user.setPassword(password.toHex());
        userMapper.insert(user);
    public User findUserByUserName(String userName) {
        return userMapper.findUserByUserName(userName);
import com.ego.dao.mapper.RoleMapper;
import com.ego.pojo.Role;
import com.ego.service.RoleService;
import java.util.List;
@Service("roleService")
public class RoleServiceImpl implements RoleService {
    private RoleMapper roleMapper;
    public List<Role> getRolesByUserId(Integer userId) {
        return roleMapper.getRolesByUserId(userId);
import com.ego.dao.mapper.PermissionMapper;
import com.ego.pojo.Permission;
import com.ego.service.PermissionService;
@Service("permissionService")
public class PermissionServiceImpl implements PermissionService {
    private PermissionMapper permissionMapper;
    public List<Permission> getPermissionsByRoleId(Integer roleId) {
        return permissionMapper.getPermissionsByRoleId(roleId);
package com.ego.dao.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
@Mapper
public interface UserMapper extends BaseMapper<User> {
    @Select("SELECT u.id,u.username,u.password,u.salt,u.age,u.email,u.address FROM t_user u WHERE u.username = #{username}")
    User findUserByUserName(String username);
public interface RoleMapper extends BaseMapper<Role> {
    @Select("select r.id,r.name from t_role r left join t_user_role ur on ur.role_id = r.id where ur.user_id = #{userId}")
    List<Role> getRolesByUserId(Integer userId);
public interface PermissionMapper extends BaseMapper<Permission> {
    @Select("select p.id,p.name,p.url from t_permission p left join t_role_permission rp on rp.permission_id = p.id where rp.role_id = #{roleId}")
    List<Permission> getPermissionsByRoleId(Integer roleId);

5.实现SaltUtil和ApplicationContextUtil两个工具类

package com.ego.utils;
import java.util.Random;
/**
 * @author 袁梦达 2019012364
 */
public class SaltUtil {
    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();
    }
}
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component
public class ApplicationContextUtil implements ApplicationContextAware {
    public static ApplicationContext context;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.context = applicationContext;
    /**
     * 根据工厂中的类名获取类实例
     */
    public static Object getBean(String beanName){
        return context.getBean(beanName);

6.实现核心Shiro

package com.ego.utils;
import java.util.Random;
/**
 * @author 袁梦达 2019012364
 */
public class SaltUtil {
    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();
    }
}
package com.ego.utils;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
 * @author 袁梦达 2019012364
 */
@Component
public class ApplicationContextUtil implements ApplicationContextAware {
    public static ApplicationContext context;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.context = applicationContext;
    }
    /**
     * 根据工厂中的类名获取类实例
     */
    public static Object getBean(String beanName){
        return context.getBean(beanName);
    }
}

7.实现Redis分布式缓存

package com.ego.shiro;
import com.ego.shiro.cache.RedisCacheManager;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.realm.Realm;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.HashMap;
import java.util.Map;
/**
 * @author 袁梦达 2019012364
 */
@Configuration
public class ShiroConfiguration {
    //1.创建shiroFilter  //负责拦截所有请求
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        //给filter设置安全管理器
        shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);
        //配置系统受限资源
        //配置系统公共资源
        Map<String,String> map = new HashMap<String,String>();
        map.put("/user/login", "anon");
        map.put("/user/register","anon");
        map.put("/register.jsp","anon");
        map.put("/index.jsp","authc");//authc 请求这个资源需要认证和授权
        //默认认证界面路径
        shiroFilterFactoryBean.setLoginUrl("/login.jsp");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(map);
        return shiroFilterFactoryBean;
    }
    //2.创建安全管理器
    public DefaultWebSecurityManager getDefaultWebSecurityManager(Realm realm){
        DefaultWebSecurityManager defaultWebSecurityManager = new DefaultWebSecurityManager();
        //给安全管理器设置
        defaultWebSecurityManager.setRealm(realm);
        return defaultWebSecurityManager;
    //3.创建自定义realm
    public Realm getRealm(){
        CustomerRealm customerRealm = new CustomerRealm();
        // 设置密码匹配器
        HashedCredentialsMatcher credentialsMatcher = new HashedCredentialsMatcher();
        // 设置加密方式
        credentialsMatcher.setHashAlgorithmName(ShiroConstant.HASH_ALGORITHM_NAME.MD5);
        // 设置散列次数
        credentialsMatcher.setHashIterations(ShiroConstant.HASH_ITERATORS);
        customerRealm.setCredentialsMatcher(credentialsMatcher);
        // 设置缓存管理器
        customerRealm.setCacheManager(new RedisCacheManager());
        // 开启全局缓存
        customerRealm.setCachingEnabled(true);
        // 开启认证缓存并指定缓存名称
        customerRealm.setAuthenticationCachingEnabled(true);
        customerRealm.setAuthenticationCacheName("authenticationCache");
        // 开启授权缓存并指定缓存名称
        customerRealm.setAuthorizationCachingEnabled(true);
        customerRealm.setAuthorizationCacheName("authorizationCache");
        return customerRealm;
}
public class ShiroConstant {
    /** 随机盐的位数 **/
    public static final int SALT_LENGTH = 8;
    /** hash的散列次数 **/
    public static final int HASH_ITERATORS = 1024;
    public interface HASH_ALGORITHM_NAME {
        String MD5 = "MD5";
import com.ego.pojo.Permission;
import com.ego.pojo.Role;
import com.ego.pojo.User;
import com.ego.service.PermissionService;
import com.ego.service.RoleService;
import com.ego.service.UserService;
import com.ego.utils.ApplicationContextUtil;
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.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;
import java.util.List;
public class CustomerRealm extends AuthorizingRealm {
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        // 获取主身份信息
        String principal = (String) principals.getPrimaryPrincipal();
        // 根据主身份信息获取角色信息
        UserService userService = (UserService) ApplicationContextUtil.getBean("userService");
        User user = userService.findUserByUserName(principal);
        RoleService roleService = (RoleService) ApplicationContextUtil.getBean("roleService");
        List<Role> roles = roleService.getRolesByUserId(user.getId());
        if(!CollectionUtils.isEmpty(roles)){
            SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
            roles.forEach(role -> {
                simpleAuthorizationInfo.addRole(role.getName());
                PermissionService permissionService = (PermissionService) ApplicationContextUtil.getBean("permissionService");
                List<Permission> permissions = permissionService.getPermissionsByRoleId(role.getId());
                if(!CollectionUtils.isEmpty(permissions)){
                    permissions.forEach(permission -> {
                        simpleAuthorizationInfo.addStringPermission(permission.getName());
                    });
                }
            });
            return simpleAuthorizationInfo;
        }
        return null;
    //认证
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String principal = (String) token.getPrincipal();
        if(!ObjectUtils.isEmpty(user)){
            return new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(), new CustomerByteSource(user.getSalt()),this.getName());
import org.apache.shiro.codec.Base64;
import org.apache.shiro.codec.CodecSupport;
import org.apache.shiro.codec.Hex;
import org.apache.shiro.util.ByteSource;
import java.io.File;
import java.io.InputStream;
import java.io.Serializable;
import java.util.Arrays;
//自定义salt实现  实现序列化接口
public class CustomerByteSource implements ByteSource, Serializable {
    private byte[] bytes;
    private String cachedHex;
    private String cachedBase64;
    public CustomerByteSource() {
    public CustomerByteSource(byte[] bytes) {
        this.bytes = bytes;
    public CustomerByteSource(char[] chars) {
        this.bytes = CodecSupport.toBytes(chars);
    public CustomerByteSource(String string) {
        this.bytes = CodecSupport.toBytes(string);
    public CustomerByteSource(ByteSource source) {
        this.bytes = source.getBytes();
    public CustomerByteSource(File file) {
        this.bytes = (new CustomerByteSource.BytesHelper()).getBytes(file);
    public CustomerByteSource(InputStream stream) {
        this.bytes = (new CustomerByteSource.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);

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