shiro授权、注解式开发

Shiro授权

流程：根据前台传递管理的账号和密码进行认真，在跳页面前进行授权验证，看这个用户是否有这个权限。

今天的权限是由5张表构成的：

写两个查询方法：

 <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 = #{uid}
</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 = #{uid}
</select>

ShourUserMapper

    Set<String> getRolesByUserId(Integer uid);

    Set<String> getPersByUserId(Integer uid);

ShourUserService

package com.cjh.service;

import com.cjh.model.ShiroUser;

import java.util.Set;

/**
 * @author
 * @site
 * @company
 * @create 2019-10-13 16:29
 */
public interface ShiroUserService {
    /**
     * 用于shiro认证
     * @param uname
     * @return
     */
    public ShiroUser queryByName(String uname);

    int insert(ShiroUser record);

    Set<String> getRolesByUserId(Integer uid);

    Set<String> getPersByUserId(Integer uid);
}

ShourUserServiceimpl

package com.cjh.service.Impl;

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

import java.util.Set;

/**
 * @author
 * @site
 * @company
 * @create 2019-10-13 16:31
 */
@Service("shiroUserService")
public class ShiroUserServiceImpl implements ShiroUserService {
    @Autowired
    private ShiroUserMapper shiroUserMapper;
    @Override
    public ShiroUser queryByName(String uname) {
        return shiroUserMapper.queryByName(uname);
    }

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

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

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


}

MyRealm

package com.cjh.shiro;

import com.cjh.model.ShiroUser;
import com.cjh.service.ShiroUserService;
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
 * @site
 * @company
 * @create 2019-10-13 16:19
 * 认证过程
 * 1.数据原（ini-》数据库）
 * 2.doGetAuthenticationInfo将数据库的用户信息个shbjet主体认证
 *    2.1 需要在当前realm中调用service来验证，当前用户是否在数据库中存在
 *    2.2 盐加密
 */
public class MyRealm extends AuthorizingRealm {
    private ShiroUserService shiroUserService;

    public ShiroUserService getShiroUserService() {
        return shiroUserService;
    }

    public void setShiroUserService(ShiroUserService shiroUserService) {
        this.shiroUserService = shiroUserService;
    }

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

        SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();
        info.setRoles(roleids);
        info.setStringPermissions(perIds);
        return info;
    }

    /**
     * 认证
     * @param token   从jsp页面传递过来的用户名和密码组成成的一个token对象
     * @return
     * @throws AuthenticationException
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String userName =  token.getPrincipal().toString();
        String pwd =  token.getPrincipal().toString();
        ShiroUser shiroUser = this.shiroUserService.queryByName(userName);
        AuthenticationInfo info = new SimpleAuthenticationInfo(
                shiroUser.getUsername(),
                shiroUser.getPassword(),
                ByteSource.Util.bytes(shiroUser.getSalt()),
                this.getName()
        );
        return info;
    }
}

注解式开发

@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

springmvc-servlet.xml中配置 

<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>

Controller层

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

    /**
     * 角色认证的注解
     * @param request
     * @param response
     * @return
     *
     * 当方法必须同时具备1、4的角色id，才能被访问
     */
    @RequiresRoles(value = {"1","4"},logical = Logical.OR)
    @RequestMapping("/passRole")
    public  String passRole(HttpServletRequest request, HttpServletResponse response) {
        return "admin/listUser";
    }

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

    /**
     * 身份、角色、权限认证失败后的处理方式
     * @param request
     * @param response
     * @return
     */
    @RequestMapping("/unauthorized")
    public  String xxx(HttpServletRequest request, HttpServletResponse response) {
        System.out.println("错误！！");
        return  "unauthorized";
    }

main.jsp

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

结果：直接进入会跳到错误处理页面，只有相关权限的才能进入