Shiro授权以及注解开发

目录

一，shiro授权角色，权限

二，shiro的注解式开发

---

一，shiro授权角色，权限

分析：

1.分析用户具备哪些角色

2.分析用户具备什么权限

1.sql语句编写

--角色：用户具备哪些角色
select roleid FROM t_shiro_user u,t_shiro_user_role ur where u.userid = ur.userid and u.username = 'zdm'
 
 
 
--权限：用户具备的权限
SELECT rp.perid from t_shiro_user u,t_shiro_user_role ur,t_shiro_role_permission rp 
where u.userid = ur.userid and ur.roleid = rp.roleid and u.username = 'ls'

 

2.自动生成xml文件配置

"selectRolesByUserName" resultType="java.lang.String" parameterType="java.lang.Integer">
  select roleid FROM t_shiro_user u,t_shiro_user_role ur where u.userid = ur.userid and u.username = #{userName}
 
  <select id="selectgetPersByUserName" resultType="java.lang.String" parameterType="java.lang.Integer">
  SELECT rp.perid from t_shiro_user u,t_shiro_user_role ur,t_shiro_role_permission rp
where u.userid = ur.userid and ur.roleid = rp.roleid and u.username = #{userName}
select>

Service层编写

package com.dengxiyan.ssm.Biz;
 
import com.dengxiyan.ssm.model.User;
import org.apache.ibatis.annotations.Param;
 
import java.util.Set;
 
public interface UserBiz {
   
    Set<String> selectRolesByUserName (String userName);
 
    Set<String> selectgetPersByUserName(String userName);
 
}

实现类

package com.dengxiyan.ssm.Biz.impl;
 
import com.dengxiyan.ssm.Biz.UserBiz;
import com.dengxiyan.ssm.mapper.UserMapper;
import com.dengxiyan.ssm.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
import java.util.Set;
 
/**
 * @author dxy
 * @site www.javadxy.com
 * @company ds公司
 * @create  2022-08-25 13:49
 */
 
@Service("userBiz")
public class UserBizImpl implements UserBiz {
 
    @Override
    public Set<String> selectRolesByUserName(String userName) {
        return userMapper.selectRolesByUserName(userName);
    }
 
    @Override
    public Set<String> selectgetPersByUserName(String userName) {
        return userMapper.selectgetPersByUserName(userName);
    }
 
 
}

Reaml

注意：角色与权限的结果要与spring-shiro.xml中的配置保持一致

package com.dengxiyan.ssm.shiro;
 
import com.dengxiyan.ssm.Biz.UserBiz;
import com.dengxiyan.ssm.mapper.UserMapper;
import com.dengxiyan.ssm.model.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.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
 
import java.util.Set;
 
/**
 * @author dxy
 * @site www.javadxy.com
 * @company ds公司
 * @create  2022-08-25 13:56
 */
public class MyRealm extends AuthorizingRealm {
 
    private UserBiz userBiz;
 
 
    public UserBiz getUserBiz() {
        return userBiz;
    }
 
    public void setUserBiz(UserBiz userBiz) {
        this.userBiz = userBiz;
    }
 
    /**
     * 授权
     * @param principals
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        System.out.println("用户授权~~~");
        String username = principals.getPrimaryPrincipal().toString();//获取用户名
        Set<String> roles = userBiz.selectRolesByUserName(username);
        Set<String> pers = userBiz.selectgetPersByUserName(username);
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        //将当前登入的 权限 交给 shiro的授权器
        info.setStringPermissions(pers);
        //将当前登录的 角色 交给 shiro授权器
        info.setRoles(roles);
        return info;
    }
 
}

二，shiro的注解式开发

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 ------（身份认证）
          @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       --------（角色认证）
          @RequiresPermissions(value = {"user:delete","user:b"},logical = Logical.OR):表示当前Subject需要权限user:delete或者user:b       --------（权限配置）

使用

Controller层

对应的注解添加到指定需要权限控制的方法上

package com.dengxiyan.ssm.controller;
 
import org.apache.shiro.authz.annotation.Logical;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.apache.shiro.authz.annotation.RequiresRoles;
import org.apache.shiro.authz.annotation.RequiresUser;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
 
import javax.servlet.http.HttpServletRequest;
 
/**
 * @author dxy
 * @site www.javadxy.com
 * @company ds公司
 * @create  2022-08-26 18:58
 */
@Controller
public class ShiroController {
 
    //表示登入后才可以访问   等价于Spring-shiro.xml中的user/updatePwd.jsp=配置
    @RequiresUser
    @RequestMapping("/passUser")
    public String passUser(HttpServletRequest request){
        return "admin/addUser";
    }
 
//    @RequiresRoles 当前方法只有 具备指定的角色才能访问
//    相当于spring-shiro.admin/*.jsp=roles[4]配置
    @RequiresRoles(value = {"1","4"},logical = Logical.AND)
    @RequestMapping("/passRole")
    public String passRoles(HttpServletRequest request){
        System.out.println("角色验证通过");
        return "admin/addUser";
    }
 
//    @RequiresPermissions 当前方法只有具备指定的权限 才能够访问
//    等价于Spring-shiro.xml中的user/teacher.jsp=perms配置
//    @RequiresPermissions(value = {"user:update","user:view"},logical = Logical.OR)
    @RequiresPermissions(value = {"2"},logical = Logical.AND)
    @RequestMapping("/passPer")
    public String passPer(HttpServletRequest request){
        System.out.println("权限通过验证");
        return "admin/addUser";
    }
 
    @RequestMapping("/unauthorized")
    public String unauthorized(){
        System.out.println("权限验证通过");
        return "admin/addUser";
    }
 
}

 Spring-mvc.xml配置

添加拦截器相关配置

class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
      depends-on="lifecycleBeanPostProcessor">
    <property name="proxyTargetClass" value="true">property>
<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界面（测试）

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="r" uri="http://shiro.apache.org/tags" %>
<html>
<head>
    <title>Titletitle>
head>
<body>
<h1>主界面<%=System.currentTimeMillis()%>，欢迎您：[${sessionScope.username}]h1>
<ul>
    shiro注解
    <li>
        <a href="${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>
 
body>
html>

效果图展示

标记处：由于每个用户的权限不同，有的用户有该权限，有的用户没有