Shiro身份认证、盐加密

目的：

　　Shiro认证

　　盐加密工具类

---

Shiro认证

　　1.导入pom依赖

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

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

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

　　2.web.xml

<!-- shiro过滤器定义 -->
<filter>
  <filter-name>shiroFilter</filter-name>
  <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  <init-param>
    <!-- 该值缺省为false,表示生命周期由SpringApplicationContext管理,设置为true则表示由ServletContainer管理 -->
    <param-name>targetFilterLifecycle</param-name>
    <param-value>true</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>shiroFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

　设置五个表并且用逆向生成相应的mapper

generatorConfig.xml

 <table schema="" tableName="t_shiro_permission" domainObjectName="ShiroPermission"
               enableCountByExample="false" enableDeleteByExample="false"
               enableSelectByExample="false" enableUpdateByExample="false">
        </table>
        <table schema="" tableName="t_shiro_role" domainObjectName="ShiroRole"
               enableCountByExample="false" enableDeleteByExample="false"
               enableSelectByExample="false" enableUpdateByExample="false">
        </table>

        <table schema="" tableName="t_shiro_role_permission" domainObjectName="ShiroRolePermission"
               enableCountByExample="false" enableDeleteByExample="false"
               enableSelectByExample="false" enableUpdateByExample="false">
        </table>
        <table schema="" tableName="t_shiro_user" domainObjectName="ShiroUser"
               enableCountByExample="false" enableDeleteByExample="false"
               enableSelectByExample="false" enableUpdateByExample="false">
        </table>

        <table schema="" tableName="t_shiro_user_role" domainObjectName="ShiroUserRole"
               enableCountByExample="false" enableDeleteByExample="false"
               enableSelectByExample="false" enableUpdateByExample="false">
        </table>

 ShiroUserMapper

@Repository
public interface ShiroUserMapper {
    int deleteByPrimaryKey(Integer userid);

    int insert(ShiroUser record);

    int insertSelective(ShiroUser record);

    ShiroUser selectByPrimaryKey(Integer userid);

    int updateByPrimaryKeySelective(ShiroUser record);

    int updateByPrimaryKey(ShiroUser record);

    ShiroUser queryByName(String userName);
}

ShiroUserMapper.xml

<select id="queryByName" resultType="com.huangting.model.ShiroUser" parameterType="java.lang.String">
    select
    <include refid="Base_Column_List" />
    from t_shiro_user
    where username = #{username}
  </select>

ShiroUserService

/**
 * @author 黄大娘
 * @company dogsun
 * @oreata 2019-10-13 20:19
 */
public interface ShiroUserService{
    /**
     * 用于认证的
     * @param userName
     * @return
     */
    public ShiroUser queryByName(String userName);

    /**
     * 注册
     * @param shiroUser
     * @return
     */
    int insert(ShiroUser shiroUser);
}

ShiroUserServiceImpl

/**
 * @author 黄大娘
 * @company dogsun
 * @oreata 2019-10-13 20:23
 */
@Service("shiroUserService")
public class ShiroUserServiceImpl implements ShiroUserService {
    @Autowired
    private ShiroUserMapper shiroUserMapper;
    @Override
    public ShiroUser queryByName(String userName) {
        return shiroUserMapper.queryByName(userName);
    }
    @Override
    public int insert(ShiroUser shiroUser) {
        return shiroUserMapper.insert(shiroUser);
    }
}

MyRealm
对新建方法获取的用户信息进行认证

/**
 * @author 黄大娘
 * @company dogsun
 * @oreata 2019-10-13 19:54
 * 认证的过程：
 * 1、数据源（ini=>数据库）
 * 2、doGetAuthenticationInfo将数据库的用户信息给subject主体做shiro认证的
 *      2.1、需要在当前realm中调用service来验证，判断当前用户是否在数据库中存在
 *      2.2、盐加密
 */
public class MyRealm extends AuthorizingRealm {
    private ShiroUserService shiroUserService;

    public ShiroUserService getShiroUserService() {
        return shiroUserService;
    }

    public void setShiroUserService(ShiroUserService shiroUserService) {
        this.shiroUserService = shiroUserService;
    }
    /**
     * 授权
     * @param principalCollection
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        return null;
    }

    /**
     * 认证
     * 此方法认证数据源
     * @param token    从jsp传递过来的用户名密码组成成的一个token对象
     * @return
     * @throws AuthenticationException
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String userName = token.getPrincipal().toString();
        String pwd = token.getCredentials().toString();
        ShiroUser shiroUser = this.shiroUserService.queryByName(userName);
        SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(
                shiroUser.getUsername(),
                shiroUser.getPassword(),
                ByteSource.Util.bytes(shiroUser.getSalt()),
                this.getName()
        );
        return info;
    }
}

applicationContext-shiro.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <!--配置自定义的Realm-->
    <bean id="shiroRealm" class="com.huangting.shrio.MyRealm">
        <property name="shiroUserService" ref="shiroUserService" />
        <!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
        <!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
        <!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
        <!--以下三个配置告诉shiro将如何对用户传来的明文密码进行加密-->
        <property name="credentialsMatcher">
            <bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
                <!--指定hash算法为MD5-->
                <property name="hashAlgorithmName" value="md5"/>
                <!--指定散列次数为1024次-->
                <property name="hashIterations" value="1024"/>
                <!--true指定Hash散列值使用Hex加密存. false表明hash散列值用用Base64-encoded存储-->
                <property name="storedCredentialsHexEncoded" value="true"/>
            </bean>
        </property>
    </bean>

    <!--注册安全管理器-->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="shiroRealm" />
    </bean>

    <!--Shiro核心过滤器-->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <!-- Shiro的核心安全接口,这个属性是必须的 -->
        <property name="securityManager" ref="securityManager" />
        <!-- 身份验证失败，跳转到登录页面 -->
        <property name="loginUrl" value="/login"/>
        <!-- 身份验证成功，跳转到指定页面 -->
        <!--<property name="successUrl" value="/index.jsp"/>-->
        <!-- 权限验证失败，跳转到指定页面 -->
        <property name="unauthorizedUrl" value="/unauthorized.jsp"/>
        <!-- Shiro连接约束配置,即过滤链的定义 -->
        <property name="filterChainDefinitions">
            <value>
                <!--
                注：anon，authcBasic，auchc，user是认证过滤器
                    perms，roles，ssl，rest，port是授权过滤器
                -->
                <!--anon 表示匿名访问，不需要认证以及授权-->
                <!--authc表示需要认证 没有进行身份认证是不能进行访问的-->
                <!--roles[admin]表示角色认证，必须是拥有admin角色的用户才行-->
                /user/login=anon
                /user/updatePwd.jsp=authc
                /admin/*.jsp=roles[admin]
                /user/teacher.jsp=perms["user:update"]
               <!-- /css/**               = anon
                /images/**            = anon
                /js/**                = anon
                /                     = anon
                /user/logout          = logout
                /user/**              = anon
                /userInfo/**          = authc
                /dict/**              = authc
                /console/**           = roles[admin]
                /**                   = anon-->
            </value>
        </property>
    </bean>

    <!-- Shiro生命周期，保证实现了Shiro内部lifecycle函数的bean执行 -->
    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>
</beans>

ShiroUserController

/**
 * @author 黄大娘
 * @company dogsun
 * @oreata 2019-10-14 21:28
 */
@Controller
public class ShiroUserController {
    @Autowired
    private ShiroUserService shiroUserService;

    @RequestMapping("/login")
    public String login(HttpServletRequest req, HttpServletResponse resp){
        Subject subject = SecurityUtils.getSubject();
        String uname = req.getParameter("username");
        String pwd = req.getParameter("password");
        UsernamePasswordToken token = new UsernamePasswordToken(uname,pwd);
        try {
            subject.login(token);
            return "main";
        }catch (Exception e){
            req.setAttribute("message","用户名或者密码错误！！！");
            return "login";
        }
    }

    @RequestMapping("/logout")
    public String logout(HttpServletRequest req, HttpServletResponse resp){
        Subject subject = SecurityUtils.getSubject();
        subject.logout();

        return "login";
    }

    @RequestMapping("/register")
    public String register(HttpServletRequest req, HttpServletResponse resp){
        String uname = req.getParameter("username");
        String pwd = req.getParameter("password");
        String salt = PasswordHelper.createSalt();
        String credentials = PasswordHelper.createCredentials(pwd, salt);

        ShiroUser shiroUser=new ShiroUser();
        shiroUser.setUsername(uname);
        shiroUser.setPassword(credentials);
        shiroUser.setSalt(salt);
        int insert = shiroUserService.insert(shiroUser);
        if(insert>0){
            req.setAttribute("message","注册成功!!!");
            return "login";
        }
        else{
            req.setAttribute("message","注册失败!!!");
            return "login";
        }
    }
}

login.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h1>用户登陆</h1>
<div style="color: red">${message}</div>
<form action="${pageContext.request.contextPath}/login" method="post">
    帐号：<input type="text" name="username"><br>
    密码：<input type="password" name="password"><br>
    <input type="submit" value="确定">
    <input type="button" onclick="location.href='${pageContext.request.contextPath}/register.jsp'" value="注册">
    <input type="reset" value="重置">
</form>
</body>
</html>

register.jsp

<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2019/10/14
  Time: 21:33
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>用户注册</title>
</head>
<body>
<h1>用户注册</h1>
<form action="${pageContext.request.contextPath}/register" method="post">
    帐号：<input type="text" name="username"><br>
    密码：<input type="password" name="password"><br>
    <input type="submit" value="注册">
    <input type="button" onclick="location.href='login.jsp'" value="返回">
</form>

</body>
</html>

---

盐加密工具类

　　PasswordHelper工具类

import org.apache.shiro.crypto.RandomNumberGenerator;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.SimpleHash;

/**
 * 用于shiro权限认证的密码工具类
 */
public class PasswordHelper {

    /**
     * 随机数生成器
     */
    private static RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();

    /**
     * 指定hash算法为MD5
     */
    private static final String hashAlgorithmName = "md5";

    /**
     * 指定散列次数为1024次，即加密1024次
     */
    private static final int hashIterations = 1024;

    /**
     * true指定Hash散列值使用Hex加密存. false表明hash散列值用用Base64-encoded存储
     */
    private static final boolean storedCredentialsHexEncoded = true;

    /**
     * 获得加密用的盐
     *
     * @return
     */
    public static String createSalt() {
        return randomNumberGenerator.nextBytes().toHex();
    }

    /**
     * 获得加密后的凭证
     *
     * @param credentials 凭证(即密码)
     * @param salt        盐
     * @return
     */
    public static String createCredentials(String credentials, String salt) {
        SimpleHash simpleHash = new SimpleHash(hashAlgorithmName, credentials,
                salt, hashIterations);
        return storedCredentialsHexEncoded ? simpleHash.toHex() : simpleHash.toBase64();
    }

    /**
     * 进行密码验证
     *
     * @param credentials        未加密的密码
     * @param salt               盐
     * @param encryptCredentials 加密后的密码
     * @return
     */
    public static boolean checkCredentials(String credentials, String salt, String encryptCredentials) {
        return encryptCredentials.equals(createCredentials(credentials, salt));
    }

    public static void main(String[] args) {
        //盐
        String salt = createSalt();
        System.out.println(salt);
        System.out.println(salt.length());
        //凭证+盐加密后得到的密码
        String credentials = createCredentials("123456", salt);
        System.out.println(credentials);
        System.out.println(credentials.length());
        boolean b = checkCredentials("123456", salt, credentials);
        System.out.println(b);
    }
}

谢谢观看！