spring整合shiro

首先要在web.xml中配置shiro的filter

 <filter>
        <filter-name>shiroFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
       <init-param>
           <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>

还有在spring的主配置文件中添加配置

<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager"/>
        <property name="loginUrl" value="login.html"/>
        <!--没有权限跳转的页面-->
        <property name="unauthorizedUrl" value="403.html"/>
        <!--过滤链-->
        <property name="filterChainDefinitions">
            <value>
                /login.html = anon
                /login.jsp = anon
                /subLogin.do = anon
                /bbb.do = roles["admin","admin1"]
                /ccc.do = roleOr["admin","admin1"]
                /pages/* = anon
                /* = authc
            </value>
        </property>
        <property name="filters">
            <map>
                <entry key="roleOr" value-ref="roleOrFilter"/>
            </map>
        </property>
    </bean>
    <bean id="roleOrFilter" class="com.imooc.filter.roleOrFilter"></bean>
    <!--创建SecurityManager对象-->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="realm"/>
    </bean>
    <!--自定义realm-->
    <bean id="realm" class="com.imooc.realm.CustomRealm">
        <property name="credentialsMatcher" ref="credentialsMatcher"/>
    </bean>
    <!--加密-->
    <bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
        <!--加密算法-->
        <property name="hashAlgorithmName" value="md5"/>
        <!--加密的次数-->
        <property name="hashIterations" value="1"/>
    </bean>

可以使用shiro自带的realm，也可以使用自定义的

下面是自定义realm：

package com.imooc.realm;

import com.imooc.dao.UserDao;
import com.imooc.domain.User;
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.crypto.hash.Md5Hash;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.*;

public class CustomRealm extends AuthorizingRealm {

    @Autowired
    private UserDao userDao ;

    /**
     * 授权
     * @param principalCollection
     * @return
     */
    @Override//授权
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        String username = (String) principalCollection.getPrimaryPrincipal();
        Set<String> roles = getRolesByUserName(username);
        Set<String> permissions = getPermissionByUserName(username);
        SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
        simpleAuthorizationInfo.setStringPermissions(permissions);
        simpleAuthorizationInfo.setRoles(roles);

        return simpleAuthorizationInfo;
    }

    private Set<String> getPermissionByUserName(String username) {

        Set<String> permissions = new HashSet<>();
        permissions.add("user:select");
        permissions.add("user:delete");
        permissions.add("user:add");
        return permissions;
    }

    private Set<String> getRolesByUserName(String username) {
        List<String> list = userDao.getRolesByUserName(username);
        for (String s : list) {
            System.out.println(s);
        }
        Set<String> roles = new HashSet<>(list);

        return roles;
    }

    /**
     * 认证
     * @param authenticationToken
     * @return
     * @throws AuthenticationException
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        String userName = (String) authenticationToken.getPrincipal();

        String password = getPasswordByUserName(userName);
        if (password == null){
            return null;
        }
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(userName,password,"customRealm");
        authenticationInfo.setCredentialsSalt(ByteSource.Util.bytes(userName));
        return authenticationInfo;
    }

    private String getPasswordByUserName(String userName) {
        User user = userDao.getUserByUserName(userName);
        System.out.println(user.getPassword());
        if (user != null)return user.getPassword();

        return null;
    }

    public static void main(String[] args) {
        Md5Hash md5Hash = new Md5Hash("123456","xiaoming");
        System.out.println(md5Hash);
    }
}

还可以自定义shiro 的filter，shiro 自带的过滤器有：

anon  authc  autncbasic  logout   nosessioncreation   perms   port   rest   roles   role   ssl    user