ssm整合shiro详解

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这里有详细的ssm整合shiro步骤,需要先搭建ssm框架，教程在
https://blog.csdn.net/qq_41150890/article/details/108419455

整合shiro：

1.在pom.xml中引入依赖

<!--  shiro -->
    <!-- https://mvnrepository.com/artifact/org.apache.shiro/shiro-core -->
    <dependency>
      <groupId>org.apache.shiro</groupId>
      <artifactId>shiro-core</artifactId>
      <version>1.6.0</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.shiro/shiro-web -->
    <dependency>
      <groupId>org.apache.shiro</groupId>
      <artifactId>shiro-web</artifactId>
      <version>1.6.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.shiro/shiro-spring -->
    <dependency>
      <groupId>org.apache.shiro</groupId>
      <artifactId>shiro-spring</artifactId>
      <version>1.6.0</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.shiro/shiro-ehcache -->
    <dependency>
      <groupId>org.apache.shiro</groupId>
      <artifactId>shiro-ehcache</artifactId>
      <version>1.6.0</version>
    </dependency>

2.新建并配置缓存ehcache.xml

<ehcache>

    <!-- Sets the path to the directory where cache .data files are created.

         If the path is a Java System Property it is replaced by
         its value in the running VM.

         The following properties are translated:
         user.home - User's home directory
         user.dir - User's current working directory
         java.io.tmpdir - Default temp file path -->
    <diskStore path="java.io.tmpdir"/>
    
    <cache name="authorizationCache"
           eternal="false"
           timeToIdleSeconds="3600"
           timeToLiveSeconds="0"
           overflowToDisk="false"
           statistics="true">
    </cache>

    <cache name="authenticationCache"
           eternal="false"
           timeToIdleSeconds="3600"
           timeToLiveSeconds="0"
           overflowToDisk="false"
           statistics="true">
    </cache>

    <cache name="shiro-activeSessionCache"
           eternal="false"
           timeToIdleSeconds="3600"
           timeToLiveSeconds="0"
           overflowToDisk="false"
           statistics="true">
    </cache>

    <!--Default Cache configuration. These will applied to caches programmatically created through
        the CacheManager.

        The following attributes are required for defaultCache:

        maxInMemory       - Sets the maximum number of objects that will be created in memory
        eternal           - Sets whether elements are eternal. If eternal,  timeouts are ignored and the element
                            is never expired.
        timeToIdleSeconds - Sets the time to idle for an element before it expires. Is only used
                            if the element is not eternal. Idle time is now - last accessed time
        timeToLiveSeconds - Sets the time to live for an element before it expires. Is only used
                            if the element is not eternal. TTL is now - creation time
        overflowToDisk    - Sets whether elements can overflow to disk when the in-memory cache
                            has reached the maxInMemory limit.

        -->
    <defaultCache
        maxElementsInMemory="10000"
        eternal="false"
        timeToIdleSeconds="120"
        timeToLiveSeconds="120"
        overflowToDisk="true"
        />

    <!--Predefined caches.  Add your cache configuration settings here.
        If you do not have a configuration for your cache a WARNING will be issued when the
        CacheManager starts

        The following attributes are required for defaultCache:

        name              - Sets the name of the cache. This is used to identify the cache. It must be unique.
        maxInMemory       - Sets the maximum number of objects that will be created in memory
        eternal           - Sets whether elements are eternal. If eternal,  timeouts are ignored and the element
                            is never expired.
        timeToIdleSeconds - Sets the time to idle for an element before it expires. Is only used
                            if the element is not eternal. Idle time is now - last accessed time
        timeToLiveSeconds - Sets the time to live for an element before it expires. Is only used
                            if the element is not eternal. TTL is now - creation time
        overflowToDisk    - Sets whether elements can overflow to disk when the in-memory cache
                            has reached the maxInMemory limit.

        -->

    <!-- Sample cache named sampleCache1
        This cache contains a maximum in memory of 10000 elements, and will expire
        an element if it is idle for more than 5 minutes and lives for more than
        10 minutes.

        If there are more than 10000 elements it will overflow to the
        disk cache, which in this configuration will go to wherever java.io.tmp is
        defined on your system. On a standard Linux system this will be /tmp"
        -->
    <cache name="sampleCache1"
        maxElementsInMemory="10000"
        eternal="false"
        timeToIdleSeconds="300"
        timeToLiveSeconds="600"
        overflowToDisk="true"
        />

    <!-- Sample cache named sampleCache2
        This cache contains 1000 elements. Elements will always be held in memory.
        They are not expired. -->
    <cache name="sampleCache2"
        maxElementsInMemory="1000"
        eternal="true"
        timeToIdleSeconds="0"
        timeToLiveSeconds="0"
        overflowToDisk="false"
        />

    <!-- Place configuration for your caches following -->

</ehcache>

3.在spring配置文件applicationContext.xml配置shiro

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- spring 配置文件  主要配置和业务逻辑有关的 -->
    <context:property-placeholder location="classpath:dbconfig.properties"/>
    <!-- 数据源 -->
    <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
        <property name="driverClass" value="${jdbc.driverClass}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>


    <context:component-scan base-package="com.liuzhan">
        <!-- 不能扫描控制器 -->
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan>


    <!-- 配置和mybatis的整合 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 指定mybatis 全局配置文件的位置 -->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="dataSource" ref="pooledDataSource"></property>
        <!-- 指定mybatismapper文件的位置 -->
<!--        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>-->
    </bean>


    <!-- 配置扫描器，将mybatis接口的实现加入到ioc容器中 -->
    <bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 扫描所有的dao接口 -->
        <property name="basePackage" value="com.liuzhan.dao"></property>
    </bean>

    <!-- 事务控制的配置 -->

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 控制数据源 -->
        <property name="dataSource" ref="pooledDataSource"></property>
    </bean>

    <aop:config>
        <!-- 切入点表达式 -->
        <aop:pointcut expression="execution(* com.liuzhan.service..*(..) )" id="txPoint"/>
        <!-- 配置事务 -->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
    </aop:config>
    <!-- 配置事务增强  事务如何切入 -->
    <tx:advice id="txAdvice">

        <tx:attributes>
            <!-- 所有方法都是事务方法 -->
            <tx:method name="*"/>
            <!-- 以get开头的所有方法 -->
            <tx:method name="get*" read-only="true"/>
        </tx:attributes>
    </tx:advice>





    <!-- shiro -->

    <!-- 配置自定义Realm -->
    <bean id="myRealm" class="com.liuzhan.relams.ShiroRealm"/>
    <!-- 安全管理器 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="myRealm"/>
    </bean>
    <!-- Shiro过滤器 核心-->
    <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"/>
        <!-- 身份认证失败，则跳转到登录页面的配置 -->
        <property name="loginUrl" value="/login.jsp"/>

        <!-- 权限认证失败，则跳转到指定页面 -->
        <property name="unauthorizedUrl" value="/noPermission.jsp"/>

        <!-- Shiro连接约束配置,即过滤链的定义 -->
        <property name="filterChainDefinitions">
            <value>
                <!--设置jsp文件可以匿名访问，静态文件，如js\html\css\img等
                -->
                <!--login/**= anon /css/**=anon /html/**=anon /images/**=anon /js/**=anon --> /noPermission.jsp=anon <!--anon 表示匿名访问，不需要认证以及授权--> /login.jsp=anon <!-- 由于该请求http://localhost:8080/ssm_shiro_war_exploded/login是执行认证的请求路径，因此不能被拦截，不然永远无法执行认证 --> /login = anon <!-- logout 表示退出，当有/logout请求时，会执行退出，清除用户信息及角色和权限信息--> /logout = logout <!-- 先登录验证 --> /**=authc <!-- 角色验证方式一（单个角色），判断该用户是否拥有admin角色 --> <!-- 注意，登录验证时不会执行该过滤规则，权限验证会执行user过滤规则,如果没有roles条件，默认是所有权限 --> /**=user,roles[admin] <!-- 或/**=roles[admin] --> <!-- 角色验证方式二（多个角色），判断该用户是否拥有admin、user角色 --> <!-- /**=roles["admin,user"]--> <!-- /**放在最下边，如果一个url有多个过虑器则多个过虑器中间用逗号分隔，如：/** = user,roles[admin]--> </value> </property> </bean> <!-- 保证实现了Shiro内部lifecycle函数的bean执行 --> <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/> <!-- 开启Shiro注解 --> <bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" depends-on= "lifecycleBeanPostProcessor"/> <bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor"> <property name="securityManager" ref="securityManager"/> </bean> </beans> 

4.自定义realm(内部定义认证和授权的逻辑代码)

package com.liuzhan.relams;

import com.liuzhan.entity.Users;
import com.liuzhan.service.UserService;
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.beans.factory.annotation.Autowired;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class ShiroRealm extends AuthorizingRealm { 
   

    @Autowired
    UserService userService;


    /** * 用于授权。 * @param principalCollection * @return */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { 
   
        System.out.println("开始授权");
        String uName = principalCollection.getPrimaryPrincipal().toString() ;
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo() ;
        List<Users> list=userService.loginCheck(uName);
        //查询当前用户的角色，放在roleName中
        Set<String> roleName = new HashSet<>();
        roleName.add(list.get(0).getRole());

        //查询角色具有的权限，放在permissions中
        Set<String> permissions = new HashSet<>();
        permissions.add("manage other users");

        //把角色和权限放在授权类的对象中
        info.addRole(list.get(0).getRole());
        info.addStringPermission("manage other users");

        System.out.println("当前用户角色："+info.getRoles());
        return info;
    }




    //认证
    //用户输入用户名和密码后，在controller调用login(token),进行认证，这边通过用户名查询密码
    //和token中用户名和密码进行比对，成功认证或失败
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { 
   

        System.out.println("开始登录认证");

        //获取用户名，去数据库取对应密码
        String uName = (String) authenticationToken.getPrincipal();
        List<Users> list=userService.loginCheck(uName);

        if(list.size()>0){ 
   
            System.out.println("用户存在");
            String uPwd=list.get(0).getuPwd();
            // 用户名存在，去数据库中去获取密码
            // 然后和token的用户名和密码对比
            // 第三个参数是选择realm,当有多个自定义realm时有用
            SimpleAuthenticationInfo info=new
                    SimpleAuthenticationInfo(uName, uPwd, "ShiroRealm");
            return info;
        }
        else{ 
   
            System.out.println("用户不存在");
            return null;
        }

    }
}

5.controller中相关代码

package com.liuzhan.controller;

import com.liuzhan.entity.Users;
import com.liuzhan.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
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;



@Controller
public class UserController { 
   

    @Autowired
    UserService userService;

    @RequestMapping("/login")
    public String loginCheck(Users users){ 
   

        Subject subject=SecurityUtils.getSubject();
        if(!subject.isAuthenticated()) { 
   
            UsernamePasswordToken token=new UsernamePasswordToken(users.getuName(),users.getuPwd());
            token.setRememberMe(true);
            try { 
   
                //执行登录，会调用认证方法，如果认证失败，会抛出异常，执行catch
                subject.login(token);
            } catch (AuthenticationException e) { 
   
                // TODO Auto-generated catch block
                System.out.println("登录失败："+e.getMessage());
                return "login";
            }
        }
        //login(token)认证成功会执行这些语句
        System.out.println("登录成功");

        //这里如果直接 return "WEB-INF/jsp/index"的话，由于默认转发，地址栏不变，还是http://localhost:8080/ssm_shiro_war_exploded/login
        //仍然执行/login = anon过滤规则，不会执行下面的权限验证过滤规则 /**=user,roles[admin]

        //因此需要使用重定向"redirect:index"，才能让 /**=user,roles[admin]过滤规则生效
        return "redirect:index";
    }

    @RequestMapping("/index")
    public String index() { 
   
       return "WEB-INF/jsp/index";
    }
}

这里到dao service entity就不再粘贴代码了

6.数据库连接配置相关

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm-shiro?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8
jdbc.driverClass=com.mysql.cj.jdbc.Driver
jdbc.user=root
jdbc.password=root

applicationContext.xml

项目中用到的是通用mapper，实体类的类名和数据库的表名对应，实体类的属性和数据库表的字段名对应

测试

运行项目

因为我shiro过滤链配置的是只有角色为admin的能进首页，角色为user不能进首页，会被拦截（数据库jake为admin,tom为user）

运行结果：