shiro授权角色，权限，加注解开发（三）

1、shiro授权角色、权限

授权,首先我们来看一下图

在ShiroUserMapper.xml中新增内容

<select id="getRolesByUserId" resultType="java.lang.String" parameterType="java.lang.Integer">
  select r.roleid from t_shiro_user u,t_shiro_user_role ur,t_shiro_role r
    where u.userid = ur.userid and ur.roleid = r.roleid
    and u.userid = #{userid}
</select>
<select id="getPersByUserId" resultType="java.lang.String" parameterType="java.lang.Integer">
  select p.permission from t_shiro_user u,t_shiro_user_role ur,t_shiro_role_permission rp,t_shiro_permission p
  where u.userid = ur.userid and ur.roleid = rp.roleid and rp.perid = p.perid
  and u.userid = #{userid}
</select>

Service层

package com.hu.com.hu;

import com.hu.model.ShiroUser;
import org.springframework.stereotype.Repository;

import java.util.Set;

/**
 * @author hu
 * @site www.huguiyun.xzy
 * @company xxx公司
 * @create  2019-10-13 16:35
 */
@Repository
public interface ShiroUserService {
    public ShiroUser queryByName(String uname);

    public int add(ShiroUser shiroUser);


    Set<String> getRolesByUserId(Integer uid);

    Set<String> getPersByUserId(Integer uid);

}

实现层，ShiroUserServiceImpl

package com.hu.com.hu;

import com.hu.mapper.ShiroUserMapper;
import com.hu.model.ShiroUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Set;

/**
 * @author hu
 * @site www.huguiyun.xzy
 * @company xxx公司
 * @create  2019-10-13 16:36
 */
@Service("shiroUserService")
public class ShiroUserServiceImpl implements ShiroUserService {

    @Autowired
    private ShiroUserMapper shiroUserMapper;

    @Override
    public ShiroUser queryByName(String uname) {

        return shiroUserMapper.queryByName(uname);
    }

    @Override
    public int add(ShiroUser shiroUser) {
        return shiroUserMapper.insert(shiroUser);
    }

    @Override
    public Set<String> getRolesByUserId(Integer uid) {
        return shiroUserMapper.getRolesByUserId(uid);
    }

    @Override
    public Set<String> getPersByUserId(Integer uid) {
        return shiroUserMapper.getPersByUserId(uid);
    }


}

重写自定义realm中的授权方法

  /**
     * 授权
     * @param principalCollection
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        ShiroUser shiroUser = this.shiroUserService.queryByName(principalCollection.getPrimaryPrincipal().toString());
        Set<String> rolesByUserId = this.shiroUserService.getRolesByUserId(shiroUser.getUserid());
        Set<String> persByUserId = this.shiroUserService.getPersByUserId(shiroUser.getUserid());

        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        info.setRoles(rolesByUserId);
        info.setStringPermissions(persByUserId);


        return info;
    }

当我们写好了这个方法的时候，我们登陆成功然后每提交一次事件都会进入这个方法，进行验证它有没有这个“权限”，这样就大大提高了我们的程序的安全性，但是同时这样的话我们的效率就会被降低。（求助。。。）

2、Shiro的注解式开发

注解式开发
常用注解介绍

• @RequiresAuthenthentication:表示当前Subject已经通过login进行身份验证;即 Subject.isAuthenticated()返回 true
• @RequiresUser:表示当前Subject已经身份验证或者通过记住我登录的
• @RequiresGuest:表示当前Subject没有身份验证或者通过记住我登录过，即是游客身份
• @RequiresRoles(value = {“admin”,“user”},logical = Logical.AND):表示当前Subject需要角色admin和user
• @RequiresPermissions(value = {“user:delete”,“user:b”},logical = Logical.OR):表示当前Subject需要权限user:delete或者user:b

注解的使用

Controller层

验证它是否有这个身份，角色，权限。有的话就跳转到有效的界面，没有就跳转到错误界面

    /**
     * 身份认证的注解
     * @param req
     * @param resp
     * @return
     */
    @RequiresUser
    @RequestMapping("/passUser")
    public String passUser(HttpServletRequest req, HttpServletResponse resp){
        return "admin/addUser";
    }

    /**
     * 角色认证的注解
     * @param req
     * @param resp
     *
     * 当前方法需要同时具备1,4的角色id才能被访问
     *
     * @return
     */
    @RequiresRoles(value = {"1","4"},logical = Logical.AND)
    @RequestMapping("/passRole")
    public String passRole(HttpServletRequest req, HttpServletResponse resp){
        return "admin/listUser";
    }

    /**
     * 权限认证的注解
     * @param req
     * @param resp
     * @return
     */
    @RequiresPermissions(value = {"user:update","user:view"},logical = Logical.OR)
    @RequestMapping("/passPer")
    public String passPer(HttpServletRequest req, HttpServletResponse resp){
        return "admin/resetPwd";
    }

Springmvc.xml，加入下面代码，错误的话就跳转到，unauthorized

<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
      depends-on="lifecycleBeanPostProcessor">
    <property name="proxyTargetClass" value="true"></property>
</bean>
<bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
    <property name="securityManager" ref="securityManager"/>
</bean>

<bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
    <property name="exceptionMappings">
        <props>
            <prop key="org.apache.shiro.authz.UnauthorizedException">
                unauthorized
            </prop>
        </props>
    </property>
    <property name="defaultErrorView" value="unauthorized"/>
</bean>

Jsp测试代码

<ul>
    shiro注解
    <li>
        <a href="${pageContext.request.contextPath}/passUser">用户认证</a>
    </li>
    <li>
        <a href="${pageContext.request.contextPath}/passRole">角色</a>
    </li>
    <li>
        <a href="${pageContext.request.contextPath}/passPer">权限认证</a>
    </li>
</ul>

这些测试是基于上一篇博客的：这篇博客里面有测试的资料
shiro验证

源码小编这里也给你发出来：嘻嘻
源码下载地址

提取码：6knu

预测结果
zs只能查看身份认证的按钮内容

ls可以看权限认证按钮内容

zdm可以看所有按钮的内容

有任何问题可以私信小编哟！！！