跟着狂神学Shiro(SpringBoot整合Shiro)

跟着狂神学Shiro

Shiro

什么是Shiro?

●Apache Shiro是一个Java 的安全(权限)框架。
●Shiro可以非常容易的开发出足够好的应用，其不仅可以用在JavaSE环境，也可以用在JavaEE环境。
●Shiro可以完成，认证，授权，加密，会话管理，Web集成，缓存等.
●下载地址: http://shiro.apache.org/

有哪些功能

●Authentication: 身份认证、登录，验证用户是不是拥有相应的身份;
●Authorization:授权,即权限验证，验证某个已认证的用户是否拥有某个权限，即判断用户能否进行什么操作，如:验证某个用户是否拥有某个角色，或者细粒度的验证某个用户对某个资源是否具有某个权限!
●Session Manager: 会话管理，即用户登录后就是第-次会话，在没有退出之前，它的所有信息都在会话中;会话可以是普通的JavaSE环境，也可以是Web环境;
●Cryptography: 加密,保护数据的安全性，如密码加密存储到数据库中，而不是明文存储;
●Web Support: Web支持，可以非常容易的集成到Web环境;
●Caching: 缓存，比如用户登录后，其用户信息，拥有的角色、权限不必每次去查,这样可以提高效率
●Concurrency: Shiro支持多线程应用的并发验证，即，如在-个线程中开启另-一个线程,能把权限自动的传
播过去
●Testing:提供测试支持;
●RunAs:允许一个用户假装为另-一个用户(如果他们允许)的身份进行访问;
●Remember Me:记住我，这个是非常常见的功能，即一-次登录后， 下次再来的话不用登录了

Shiro架构(外部)

从外部来看Shiro,即从应用程序角度来观察如何使用shiro完成工作:

●subject: 应用代码直接交互的对象是Subject, 也就是说Shiro的对外API核心就是Subject, Subject代表了当前的用户，这个用户不-定是一个具体的人，与当前应用交互的任何东西都是Subject,如网络爬虫，机器人等，与Subject的所有交互都会委托给SecurityManager; Subject其实是一一个门面， SecurityManageer 才是
实际的执行者
●SecurityManager: 安全管理器，即所有与安全有关的操作都会与SercurityManager交互, 并且它管理着所有的Subject,可以看出它是Shiro的核心，它负责与Shiro的其他组件进行交互，它相当于SpringMVC的DispatcherServlet的角色
●Realm: Shiro从Realm获取安全数据 (如用户,角色，权限)，就是说SecurityManager要验证用户身份，那么它需要从Realm获取相应的用户进行比较，来确定用户的身份是否合法;也需要从Realm得到用户相应的角色、权限，进行验证用户的操作是否能够进行，可以把Realm看DataSource;

Shiro架构(内部)

●Subject: 任何可以与应用交互的用户;
●Security Manager:相当于SpringMVC中的DispatcherSerlet; 是Shiro的心脏， 所有具体的交互都通过Security Manager进行控制，它管理者所有的Subject, 且负责进行认证,授权，会话，及缓存的管理。
●Authenticator:负责Subject认证， 是-一个扩展点，可以自定义实现;可以使用认证策略(Authentication Strategy)，即什么情况下算用户认证通过了;
●Authorizer:授权器，即访问控制器，用来决定主体是否有权限进行相应的操作;即控制着用户能访问应用中
的那些功能;
●Realm: 可以有-一个或者多个的realm, 可以认为是安全实体数据源，即用于获取安全实体的，可以用JDBC实现，也可以是内存实现等等，由用户提供;所以- -般在应用中都需要实现自己的realm
●SessionManager:管理Session生 命周期的组件,而Shiro并不仅仅可以用在Web环境，也可以用在普通的JavaSE环境中
●CacheManager: 缓存控制器，来管理如用户，角色，权限等缓存的;因为这些数据基本上很少改变,放到缓存中后可以提高访问的性能;
●Cryptography:密码模块，Shiro 提高了一些常见的加密组件用于密码加密， 解密等

Shiro快速开始

准备工作

GitHub资源

• 创建一个普通maven项目springboot-08-shiro,然后删除src目录,这样的话就可以在这个项目里新建很多model.

• 在springboot-08-shiro里新建model hello_shiro

• 找到文件
  在pom.xml中复制

    <dependencies>
        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-coreartifactId>
        dependency>

        
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>jcl-over-slf4jartifactId>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-log4j12artifactId>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <scope>runtimescope>
        dependency>
    dependencies>

更改细节

    <dependencies>
        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-coreartifactId>
            <version>1.4.1version>
        dependency>

        
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>jcl-over-slf4jartifactId>
            <version>1.7.21version>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-log4j12artifactId>
            <version>1.7.21version>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.17version>
            <scope>runtimescope>
        dependency>
    dependencies>

复制
log4j.properties

log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n

# General Apache libraries
log4j.logger.org.apache=WARN

# Spring
log4j.logger.org.springframework=WARN

# Default Shiro logging
log4j.logger.org.apache.shiro=INFO

# Disable verbose logging
log4j.logger.org.apache.shiro.util.ThreadContext=WARN
log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN

shiro.ini

[users]
# user 'root' with password 'secret' and the 'admin' role
root = secret, admin
# user 'guest' with the password 'guest' and the 'guest' role
guest = guest, guest
# user 'presidentskroob' with password '12345' ("That's the same combination on
# my luggage!!!" ;)), and role 'president'
presidentskroob = 12345, president
# user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz'
darkhelmet = ludicrousspeed, darklord, schwartz
# user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz'
lonestarr = vespa, goodguy, schwartz

# -----------------------------------------------------------------------------
# Roles with assigned permissions
# 
# Each line conforms to the format defined in the
# org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc
# -----------------------------------------------------------------------------
[roles]
# 'admin' role has all permissions, indicated by the wildcard '*'
admin = *
# The 'schwartz' role can do anything (*) with any lightsaber:
schwartz = lightsaber:*
# The 'goodguy' role is allowed to 'drive' (action) the winnebago (type) with
# license plate 'eagle5' (instance specific id)
goodguy = winnebago:drive:eagle5

然后
Quickstart.java

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.ini.IniSecurityManagerFactory;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.lang.util.Factory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Simple Quickstart application showing how to use Shiro's API.
 *
 * @since 0.9 RC2
 */
public class Quickstart {

    private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);


    public static void main(String[] args) {

        // The easiest way to create a Shiro SecurityManager with configured
        // realms, users, roles and permissions is to use the simple INI config.
        // We'll do that by using a factory that can ingest a .ini file and
        // return a SecurityManager instance:

        // Use the shiro.ini file at the root of the classpath
        // (file: and url: prefixes load from files and urls respectively):
        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance();

        // for this simple example quickstart, make the SecurityManager
        // accessible as a JVM singleton.  Most applications wouldn't do this
        // and instead rely on their container configuration or web.xml for
        // webapps.  That is outside the scope of this simple quickstart, so
        // we'll just do the bare minimum so you can continue to get a feel
        // for things.
        SecurityUtils.setSecurityManager(securityManager);

        // Now that a simple Shiro environment is set up, let's see what you can do:

        // get the currently executing user:
        Subject currentUser = SecurityUtils.getSubject();

        // Do some stuff with a Session (no need for a web or EJB container!!!)
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Retrieved the correct value! [" + value + "]");
        }

        // let's login the current user so we can check against roles and permissions:
        if (!currentUser.isAuthenticated()) {
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true);
            try {
                currentUser.login(token);
            } catch (UnknownAccountException uae) {
                log.info("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) {
                log.info("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) {
                log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                        "Please contact your administrator to unlock it.");
            }
            // ... catch more exceptions here (maybe custom ones specific to your application?
            catch (AuthenticationException ae) {
                //unexpected condition?  error?
            }
        }

        //say who they are:
        //print their identifying principal (in this case, a username):
        log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");

        //test a role:
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("Hello, mere mortal.");
        }

        //test a typed permission (not instance-level)
        if (currentUser.isPermitted("lightsaber:wield")) {
            log.info("You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        //a (very powerful) Instance Level permission:
        if (currentUser.isPermitted("winnebago:drive:eagle5")) {
            log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
                    "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        //all done - log out!
        currentUser.logout();

        System.exit(0);
    }
}

启动

2020-11-04 09:13:59,275 INFO [org.apache.shiro.session.mgt.AbstractValidatingSessionManager] - Enabling session validation scheduler... 
2020-11-04 09:14:00,629 INFO [Quickstart] - Retrieved the correct value! [aValue] 
2020-11-04 09:14:00,630 INFO [Quickstart] - User [lonestarr] logged in successfully. 
2020-11-04 09:14:00,631 INFO [Quickstart] - May the Schwartz be with you! 
2020-11-04 09:14:00,631 INFO [Quickstart] - You may use a lightsaber ring.  Use it wisely. 
2020-11-04 09:14:00,632 INFO [Quickstart] - You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  Here are the keys - have fun! 

SpringBoot整合Shiro环境搭建

• 新建SpringBoot项目,勾选web和thymeleaf

• 保持项目清洁,删除
  

• templates下新建index.html

<html lang="en"
      xmlns:th="https://www.thymeleaf.org"
      xmlns:shiro="https://www.thymeleaf.org/thymeleaf-extras-shiro">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>

<h1>首页h1>

<p th:text="${msg}">p>

body>
html>

• controller包下新建MyController

package com.huang.controller;

import org.apache.catalina.security.SecurityUtil;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpSession;

@Controller
public class MyController {

    @RequestMapping({"/","/index"})
    public String toIndex(Model model){
        model.addAttribute("msg","hello,shiro");
        return "index";
    }
}

• 测试正常

让我们继续

Subject用户
SecurityManager管理所有用户
Realm连接数据

GitHub资源

pom.xml复制

        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-spring-boot-web-starterartifactId>
        dependency>

发现并不好使更换为

        
        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-springartifactId>
            <version>1.4.1version>
        dependency>

shiro整合mybatis

导入jar包

        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>8.0.19version>
        dependency>

        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.17version>
        dependency>

        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druidartifactId>
            <version>1.1.12version>
        dependency>
        <dependency>
            <groupId>org.mybatis.spring.bootgroupId>
            <artifactId>mybatis-spring-boot-starterartifactId>
            <version>2.1.1version>
        dependency>

编写application.yml

spring:
  datasource:
    username: root
    password: jia5211314
    url: jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    #Spring Boot 默认是不注入这些属性值的，需要自己绑定
    #druid 数据源专有配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true

    #配置监控统计拦截的filters，stat:监控统计、log4j：日志记录、wall：防御sql注入
    #如果允许时报错  java.lang.ClassNotFoundException: org.apache.log4j.Priority
    #则导入 log4j 依赖即可，Maven 地址：https://mvnrepository.com/artifact/log4j/log4j
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
mybatis:
  type-aliases-package: com.huang.pojo
  mapper-locations: classpath:mybatis/mapper/*.xml

编写实体类

        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <version>1.18.10version>
            <scope>providedscope>
        dependency>

User

package com.huang.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private int id;
    private String name;
    private String pwd;
    private String perms;


}

mapper包编写UserMapper

package com.huang.mapper;

import com.huang.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper//这个注解表示了这是一个mybatis的mapper类
@Repository
public interface UserMapper {

    List<User> queryUserList();

    User queryUserById(int id);

    int addUser(User user);

    int updateUser(User user);

    int deleteUser(int id);
}

resource包下新建mybatis包下健mapper

UserMapper.xml

<mapper namespace="com.huang.mapper.UserMapper">

    <select id="queryUserList" resultType="User">
       select * from user;
    select>

    <select id="queryUserByName" resultType="User" parameterType="String">
        select * from user where name=#{name}
    select>

mapper>

service层

UserService接口

package com.huang.service;

import com.huang.pojo.User;

public interface UserService {
    User queryUserByName(String name);
}

UserServiceImpl

package com.huang.service;

import com.huang.mapper.UserMapper;
import com.huang.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserServiceImpl implements UserService{
    @Autowired
    UserMapper userMapper;

    @Override
    public User queryUserByName(String name) {
        return userMapper.queryUserByName(name);
    }
}

ShiroSpringbootApplicationTests中进行测试

package com.huang;

import com.huang.service.UserServiceImpl;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class ShiroSpringbootApplicationTests {
    @Autowired
    UserServiceImpl userService;

    @Test
    void contextLoads() {
        System.out.println(userService.queryUserByName("张三"));
    }

}

• 测试成功

Shiro整合Thymeleaf

导入jar包

        
        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-springartifactId>
            <version>1.4.1version>
        dependency>

代码整理

• 结构目录
  

config

ShiroConfig

package com.huang.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    //ShiroFilterBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("getDefaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean=new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        //添加shiro的内置过滤器
        /*
            anon:无需认证就能访问
            authc:必须认证才能访问
            user:必须拥有记住我功能才能访问
            perms:拥有某个资源的权限才能访问
            role:拥有某个角色权限才能访问
         */
        //拦截
        Map<String,String> filterMap =new LinkedHashMap<>();

        //授权
        filterMap.put("/user/add","perms[user:add]");
        filterMap.put("/user/update","perms[user:update]");

        //filterMap.put("/user/add","authc");
        //filterMap.put("/user/update","authc");

        //设置登陆的请求
        bean.setLoginUrl("/toLogin");

        //设置未授权的请求
        bean.setUnauthorizedUrl("/noauth");

        bean.setFilterChainDefinitionMap(filterMap);

        return bean;

    }

    //DefaultWebSecurityManager
    @Bean
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager=new DefaultWebSecurityManager();

        //关联UserRealm
        securityManager.setRealm(userRealm);

        return securityManager;
    }


    //创建realm对象
    @Bean
    public UserRealm userRealm(){
        return new UserRealm();
    }

    //整合shiroDialect:用来整合shiro thymeleaf
    @Bean
    public ShiroDialect getShiroDialect(){
        return new ShiroDialect();
    }
}

UserRealm

package com.huang.config;

import com.huang.pojo.User;
import com.huang.service.UserService;
import org.apache.catalina.security.SecurityUtil;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
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.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;

public class UserRealm extends AuthorizingRealm {
    @Autowired
    UserService userService;

    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了授权");

        SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();

        //info.addStringPermission("user:add");
        //拿到当前用户登陆对象
        Subject subject= SecurityUtils.getSubject();
        User currentUser= (User) subject.getPrincipal();//拿到User对象
        info.addStringPermission(currentUser.getPerms());//设置当前用户对象

        return info;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        System.out.println("执行了认证");

        //用户名，密码，数据库中获取

        UsernamePasswordToken userToken=(UsernamePasswordToken) authenticationToken;

        User user=userService.queryUserByName(userToken.getUsername());//获取用户名

        String name=user.getName();
        String password=user.getPwd();
        if(user==null){//说明查无此人
            return null;
        }

        //密码认证,shiro做
        return new SimpleAuthenticationInfo(user,password,"");//放入User对象

    }


}

controller

MyController

package com.huang.controller;

import org.apache.catalina.security.SecurityUtil;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpSession;

@Controller
public class MyController {

    @RequestMapping({"/","/index"})
    public String toIndex(Model model){
        model.addAttribute("msg","hello,shiro");
        return "index";
    }

    @RequestMapping("/user/add")
    public String add(){
        return "user/add";
    }

    @RequestMapping("/user/update")
    public String update(){
        return "user/update";
    }

    @RequestMapping("/toLogin")
    public String toLogin(){
        return "login";
    }

    @RequestMapping("/login")
    public String login(String username, String password, Model model, HttpSession session){

        //获取当前用户
        Subject subject= SecurityUtils.getSubject();
        //封装用户的登陆数据
        UsernamePasswordToken token=new UsernamePasswordToken(username,password);

        try{
            subject.login(token);//执行登陆的方法
            session.setAttribute("loginUser",username);//设置session
            return "index";
        }catch (UnknownAccountException e){//用户名不存在
            model.addAttribute("msg","用户名错误");
            return "login";
        }catch (IncorrectCredentialsException e){//密码不存在
            model.addAttribute("msg","密码错误");
            return "login";
        }

    }

    @RequestMapping("/noauth")
    @ResponseBody
    public String unauthorized(){
        return "未经授权禁止访问";

    }

}

mapper

UserMapper

package com.huang.mapper;

import com.huang.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper
@Repository
public interface UserMapper {

    User queryUserByName(String name);

    List<User> queryUserList();

    User queryUserById(int id);

    int addUser(User user);

    int updateUser(User user);

    int deleteUser(int id);
}

pojo

User

package com.huang.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private int id;
    private String name;
    private String pwd;
    private String perms;


}

service

UserService

在这里插入代码片package com.huang.service;

import com.huang.pojo.User;

public interface UserService {
    User queryUserByName(String name);
}

UserServiceImpl

package com.huang.service;

import com.huang.mapper.UserMapper;
import com.huang.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserServiceImpl implements UserService{
    @Autowired
    UserMapper userMapper;

    @Override
    public User queryUserByName(String name) {
        return userMapper.queryUserByName(name);
    }
}

resource

UserMapper.xml

<mapper namespace="com.huang.mapper.UserMapper">

    <select id="queryUserList" resultType="User">
       select * from user;
    select>

    <select id="queryUserByName" resultType="User" parameterType="String">
        select * from user where name=#{name}
    select>

mapper>

add.html

<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>
<h1>添加一个用户h1>
body>
html>


-----------------------------------------------


<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>
<h1>修改一个用户h1>
body>
html>

-----------------------------------------------

<html lang="en"
      xmlns:th="https://www.thymeleaf.org"
      xmlns:shiro="https://www.thymeleaf.org/thymeleaf-extras-shiro">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>

<h1>首页h1>

<p th:text="${msg}">p>

<hr>
<div th:if="${session.loginUser==null}">
    <a th:href="@{/toLogin}">登陆a>
div>

<div shiro:hasPermission="user:add">
    <a th:href="@{/user/add}">adda>
div>

<div shiro:hasPermission="user:update">
    <a th:href="@{/user/update}">updatea>
div>

body>
html>

-----------------------------------------------


<html lang="en" xmlns:th="https://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>
<h1>登陆h1>
<hr>
<p style="color: red" th:text="${msg}">p>
<form th:action="@{/login}">
    <p>用户名：<input type="text" name="username">p>
    <p>密码：<input type="password" name="password">p>
    <p><input type="submit">p>
form>
body>
html>

application.yml

spring:
  datasource:
    username: root
    password: jia5211314
    url: jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    #Spring Boot 默认是不注入这些属性值的，需要自己绑定
    #druid 数据源专有配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true

    #配置监控统计拦截的filters，stat:监控统计、log4j：日志记录、wall：防御sql注入
    #如果允许时报错  java.lang.ClassNotFoundException: org.apache.log4j.Priority
    #则导入 log4j 依赖即可，Maven 地址：https://mvnrepository.com/artifact/log4j/log4j
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
mybatis:
  type-aliases-package: com.huang.pojo
  mapper-locations: classpath:mybatis/mapper/*.xml

pom.xml

    <dependencies>

        
        <dependency>
            <groupId>com.github.theborakompanionigroupId>
            <artifactId>thymeleaf-extras-shiroartifactId>
            <version>2.0.0version>
        dependency>


        

        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>8.0.19version>
        dependency>

        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.17version>
        dependency>

        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druidartifactId>
            <version>1.1.12version>
        dependency>

        
        <dependency>
            <groupId>org.mybatis.spring.bootgroupId>
            <artifactId>mybatis-spring-boot-starterartifactId>
            <version>2.1.1version>
        dependency>

        
        
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <version>1.18.10version>
            <scope>providedscope>
        dependency>


        
        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-springartifactId>
            <version>1.4.1version>
        dependency>

        
        <dependency>
            <groupId>org.thymeleafgroupId>
            <artifactId>thymeleaf-spring5artifactId>
        dependency>

        <dependency>
            <groupId>org.thymeleaf.extrasgroupId>
            <artifactId>thymeleaf-extras-java8timeartifactId>
        dependency>

        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>

        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintagegroupId>
                    <artifactId>junit-vintage-engineartifactId>
                exclusion>
            exclusions>
        dependency>
    dependencies>

小结

此部分比Spring Security较难,并未能很好的理解所以粘贴了大量代码,回头会再次理解,对笔记进行补充.