shiro授权

在UserMapper.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

 /**
     * 查询用户对应的角色id集合
     * @param userId
     * @return
     */
    Set<String> getRolesByUserId(@Param("userid") Integer userId);

    /**
     * 查询用户对应的权限名称集合
     * @param userId
     * @return
     */
    Set<String> getPersByUserId(@Param("userid") Integer userId);

UserService.java

package com.javachz.ssm.service;


import com.javachz.ssm.model.User;

import java.util.Set;

/**
 * @author 52hz
 * @site www.javachz.com
 * @company xxx公司
 * @create  2019-11-30 21:21
 */
public interface UserService {
    User queryByName(String userName);

    Set<String> getRolesByUserId(Integer userId);

    Set<String> getPersByUserId(Integer userId);
}

UserServletImpl .java

package com.javachz.ssm.service.Impl;

import com.javachz.ssm.mapper.UserMapper;
import com.javachz.ssm.model.User;
import com.javachz.ssm.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Set;

/**
 * @author 52hz
 * @site www.javachz.com
 * @company xxx公司
 * @create  2019-11-30 21:22
 */
@Service("userService")
public class UserServletImpl implements UserService {
    @Autowired
    private UserMapper userMapper;


    @Override
    public User queryByName(String userName) {
        return userMapper.queryByName(userName);
    }

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

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

MyRealm.java

package com.javachz.ssm.shiro;

import com.javachz.ssm.model.User;
import com.javachz.ssm.service.Impl.UserServletImpl;
import com.javachz.ssm.service.UserService;
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 org.springframework.beans.factory.annotation.Autowired;

import java.util.Set;

/**
 * @author 52hz
 * @site www.javachz.com
 * @company xxx公司
 * @create  2019-11-30 20:44
 */
public class MyRealm extends AuthorizingRealm {
    @Autowired
    private UserService userService;

    public UserService getUserService() {
        return userService;
    }

    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    /**
     * 授权
     * @param principalCollection
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("进行授权.....");
        User user = this.userService.queryByName(principalCollection.getPrimaryPrincipal().toString());
        //当前认证过的用户对应的角色id集合
        Set<String> rolesByUserId = this.userService.getRolesByUserId(user.getUserid());
        Set<String> persByUserId = this.userService.getPersByUserId(user.getUserid());
        AuthorizationInfo info=new SimpleAuthorizationInfo();
        ((SimpleAuthorizationInfo) info).setRoles(rolesByUserId);
        ((SimpleAuthorizationInfo) info).setStringPermissions(persByUserId);
        return info;
    }

    /**
     * 认证
     * @param authenticationToken
     * @return
     * @throws AuthenticationException
     * token是controller层传递过来的，登录操作访问这个方法
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        String userName=authenticationToken.getPrincipal().toString();
        User user = this.userService.queryByName(userName);
        AuthenticationInfo info=new SimpleAuthenticationInfo(
                user.getUsername(),
                user.getPassword(),
                ByteSource.Util.bytes(user.getSalt()),
                this.getName());
        return info;
    }
}

UserController.java

package com.javachz.ssm.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;

/**
 * @author 52hz
 * @site www.javachz.com
 * @company xxx公司
 * @create  2019-11-30 21:58
 */
@Controller
public class UserController {

    @RequestMapping("/login")
    public String login(HttpServletRequest request) {
        String username = request.getParameter("username");
        String password= request.getParameter("password");
        UsernamePasswordToken token = new UsernamePasswordToken(username, password);
        Subject subject = SecurityUtils.getSubject();
        try {
            subject.login(token);
            request.getSession().setAttribute("username", username);
            return "main";
        } catch (Exception e) {
            request.setAttribute("message","用户或者密码错误！！！");
            return "login";
        }


    }

    @RequestMapping("/logout")
    public String logout(HttpServletRequest request) {
        Subject subject=SecurityUtils.getSubject();
        subject.logout();
        return "redirect:/login.jsp";
    }
}

准备好相应的jsp页面，登录后操作效果图
login.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <h1>用户登陆</h1>
    <div style="color: red">${message}</div>
    <form action="${pageContext.request.contextPath}/login " method="post">
        帐号：<input type="text" name="username"><br>
        密码：<input type="password" name="password"><br>
        <input type="submit" value="确定">
        <input type="reset" value="重置">
    </form>
</body>
</html>

main.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="r" uri="http://shiro.apache.org/tags" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h1>主界面<%=System.currentTimeMillis()%>，欢迎您:[${sessionScope.username}]</h1>
<ul>
    系统功能列表
    <li>
        <a href="admin/addUser.jsp">用户新增</a>
    </li>
    <li>
        <a href="admin/listUser.jsp">用户查询</a>
    </li>
    <li>
        <a href="admin/resetPwd.jsp">重置用户密码</a>
    </li>
    <li>
        <a href="admin/updateUser.jsp">用户修改</a>
    </li>
    <li>
        <a href="user/updatePwd.jsp">个人密码修改</a>
    </li>
    <li>
        <a href="user/teacher.jsp">老师简介</a>
    </li>
    <li>
        <a href="${pageContext.request.contextPath}/logout">退出系统</a>
    </li>
</ul>
<ul>
    shiro标签
    <li>
        <r:hasPermission name="user:create">
            <a href="admin/addUser.jsp">用户新增</a>
        </r:hasPermission>
    </li>
    <li>
        <a href="admin/listUser.jsp">用户查询</a>
    </li>
    <li>
        <a href="admin/resetPwd.jsp">重置用户密码</a>
    </li>
    <li>
        <r:hasPermission name="user:update">
            <a href="admin/updateUser.jsp">用户修改</a>
        </r:hasPermission>
    </li>
    <li>
        <a href="user/updatePwd.jsp">个人密码修改</a>
    </li>
    <li>
        <a href="${pageContext.request.contextPath}/logout">退出系统</a>
    </li>
</ul>
</body>
</html>

在这里插入图片描述

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
@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

 @RequiresUser
    @ResponseBody
    @RequestMapping("/passUser")
    public String passUser(HttpServletRequest request){
        return "shiro pass User";
    }

    @RequiresRoles(value = {"2","4"},logical = Logical.OR)
    @ResponseBody
    @RequestMapping("/passRole")
    public String passRole(HttpServletRequest request){
        return "shiro pass Role";
    }

    @RequiresPermissions(value = {"user:load","user:export"},logical = Logical.AND)
    @ResponseBody
    @RequestMapping("/passAuth")
    public String passAuth(HttpServletRequest request){
        return "shiro pass Auth";
    }

springmvc-servlet.xml配置拦截器

 <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>

测试结果效果图
在这里插入图片描述

预测结果
zs只能查看身份认证的按钮内容
ls、ww可以看权限认证按钮内容
zdm可以看所有按钮的内容

52hz@Java

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shiro授权及注解开发

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