ssm整合shiro使用详解

<!--  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>

<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>

<?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
    @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;
        }

    }
}

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";
    }
}

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