java开源项目jeecgboot的超详细解析

npm install
npm run serve

MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];
		String sqlId = mappedStatement.getId();
		log.debug("------sqlId------" + sqlId);
		//获取sql类型是插入还是修改
		SqlCommandType sqlCommandType = mappedStatement.getSqlCommandType();
		//获取插入参数
		Object parameter = invocation.getArgs()[1];
		if (parameter == null) {
			return invocation.proceed();
		}
		if (SqlCommandType.INSERT == sqlCommandType) {
			LoginUser sysUser = this.getLoginUser();
			//通过反射获取入参的类
			Field[] fields = oConvertUtils.getAllFields(parameter);
			for (Field field : fields) {
				log.debug("------field.name------" + field.getName());
				try {
				    //将创建人信息动态加入
					if ("createBy".equals(field.getName())) {
						field.setAccessible(true);
						Object local_createBy = field.get(parameter);
						field.setAccessible(false);
						if (local_createBy == null || local_createBy.equals("")) {
							if (sysUser != null) {
								// 登录人账号
								field.setAccessible(true);
								field.set(parameter, sysUser.getUsername());
								field.setAccessible(false);
							}
						}
					}
			}		

    //表示是否允许访问 ，如果允许访问返回true，否则false；
    @Override
    protected boolean isAccessAllowed(ServletRequest servletRequest, ServletResponse servletResponse, Object o) throws Exception {
        Subject subject = getSubject(servletRequest, servletResponse);
        //获取当前url
        String url = getPathWithinApplication(servletRequest);
        log.info("当前用户正在访问的 url => " + url);
        return subject.isPermitted(url);
    }

    //onAccessDenied：表示当访问拒绝时是否已经处理了； 如果返回 true 表示需要继续处理； 如果返回 false
    @Override
    protected boolean onAccessDenied(ServletRequest servletRequest, ServletResponse servletResponse) throws Exception {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        response.sendRedirect(request.getContextPath() + this.errorUrl);
        // 返回 false 表示已经处理，例如页面跳转啥的，表示不在走以下的拦截器了（如果还有配置的话）
        return false;
    }

    //获取所有菜单权限集合
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {  
    }

    //验证用户输入的账号和密码是否正确
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken auth) throws AuthenticationException {
    }

    //校验token的有效性
    public LoginUser checkUserTokenIsEffect(String token) throws AuthenticationException {
    }

    //刷新token有效时间
    public boolean jwtTokenRefresh(String token, String userName, String passWord) {
    }

    //清除当前用户的权限认证缓存
    @Override
    public void clearCache(PrincipalCollection principals) {
        super.clearCache(principals);
    }

public class ShiroConfig {

    @Value("${jeecg.shiro.excludeUrls}")
    private String excludeUrls;
    @Resource
    LettuceConnectionFactory lettuceConnectionFactory;
    @Autowired
    private Environment env;


    /**
     * Filter Chain定义说明
     *
     * 1、一个URL可以配置多个Filter，使用逗号分隔
     * 2、当设置多个过滤器时，全部验证通过，才视为通过
     * 3、部分过滤器可指定参数，如perms，roles
     */
    @Bean("shiroFilter")
    public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {
        CustomShiroFilterFactoryBean shiroFilterFactoryBean = new CustomShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        // 拦截器
        Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
        if(oConvertUtils.isNotEmpty(excludeUrls)){
            String[] permissionUrl = excludeUrls.split(",");
            for(String url : permissionUrl){
                filterChainDefinitionMap.put(url,"anon");
            }
        }
        // 配置不会被拦截的链接 顺序判断 也就是不同通过token访问的地址
        filterChainDefinitionMap.put("/sys/cas/client/validateLogin", "anon"); /
  
        // 添加自己的过滤器并且取名为jwt
        Map<String, Filter> filterMap = new HashMap<String, Filter>(1);
        //如果cloudServer为空 则说明是单体 需要加载跨域配置【微服务跨域切换】
        Object cloudServer = env.getProperty(CommonConstant.CLOUD_SERVER_KEY);
        //前文定义的过滤器
        filterMap.put("jwt", new JwtFilter(cloudServer==null));
        shiroFilterFactoryBean.setFilters(filterMap);
        // <!-- 过滤链定义，从上向下顺序执行，一般将/**放在最为下边
        filterChainDefinitionMap.put("/**", "jwt");

        // 未授权界面返回JSON
        shiroFilterFactoryBean.setUnauthorizedUrl("/sys/common/403");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    //加入security自定义配置类
    @Bean("securityManager")
    public DefaultWebSecurityManager securityManager(ShiroRealm myRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //加入上文提供的授权配置
        securityManager.setRealm(myRealm);
        DefaultSubjectDAO subjectDAO = new DefaultSubjectDAO();
        DefaultSessionStorageEvaluator defaultSessionStorageEvaluator = new DefaultSessionStorageEvaluator();
        defaultSessionStorageEvaluator.setSessionStorageEnabled(false);
        subjectDAO.setSessionStorageEvaluator(defaultSessionStorageEvaluator);
        securityManager.setSubjectDAO(subjectDAO);
        //使用redis缓存有关信息（实现在下文）
        securityManager.setCacheManager(redisCacheManager());
        return securityManager;
    }

    //下面的代码是添加注解支持
    @Bean
    @DependsOn("lifecycleBeanPostProcessor")
    public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
        defaultAdvisorAutoProxyCreator.setProxyTargetClass(true);
        defaultAdvisorAutoProxyCreator.setUsePrefix(true);
        defaultAdvisorAutoProxyCreator.setAdvisorBeanNamePrefix("_no_advisor");
        return defaultAdvisorAutoProxyCreator;
    }

    //管理shiro生命周期
    @Bean
    public static LifecycleBeanPostProcessor lifecycleBeanPostProcessor() {
        return new LifecycleBeanPostProcessor();
    }

    //开启shiro注解
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(DefaultWebSecurityManager securityManager) {
        AuthorizationAttributeSourceAdvisor advisor = new AuthorizationAttributeSourceAdvisor();
        advisor.setSecurityManager(securityManager);
        return advisor;
    }

    // 使用redis缓存用户信息 ，并设置redis
    public RedisCacheManager redisCacheManager() {
        RedisCacheManager redisCacheManager = new RedisCacheManager();
        //配置redis实例
        redisCacheManager.setRedisManager(redisManager());
        //redis中针对不同用户缓存(此处的id需要对应user实体中的id字段,用于唯一标识)
        redisCacheManager.setPrincipalIdFieldName("id");
        //用户权限信息缓存时间
        redisCacheManager.setExpire(200000);
        return redisCacheManager;
    }

     //连接redsi，分为单机与集群
    @Bean
    public IRedisManager redisManager() {
        log.info("===============(2)创建RedisManager,连接Redis..");
        IRedisManager manager;
        // redis 单机支持，在集群为空，或者集群无机器时候使用 add by jzyadmin@163.com
        if (lettuceConnectionFactory.getClusterConfiguration() == null || lettuceConnectionFactory.getClusterConfiguration().getClusterNodes().isEmpty()) {
            RedisManager redisManager = new RedisManager();
            redisManager.setHost(lettuceConnectionFactory.getHostName());
            redisManager.setPort(lettuceConnectionFactory.getPort());
            redisManager.setDatabase(lettuceConnectionFactory.getDatabase());
            redisManager.setTimeout(0);
            if (!StringUtils.isEmpty(lettuceConnectionFactory.getPassword())) {
                redisManager.setPassword(lettuceConnectionFactory.getPassword());
            }
            manager = redisManager;
        }else{
            // redis集群支持，优先使用集群配置
            RedisClusterManager redisManager = new RedisClusterManager();
            Set<HostAndPort> portSet = new HashSet<>();
            lettuceConnectionFactory.getClusterConfiguration().getClusterNodes().forEach(node -> portSet.add(new HostAndPort(node.getHost() , node.getPort())));
            //update-begin--Author:scott Date:20210531 for：修改集群模式下未设置redis密码的bug issues/I3QNIC
            if (oConvertUtils.isNotEmpty(lettuceConnectionFactory.getPassword())) {
                JedisCluster jedisCluster = new JedisCluster(portSet, 2000, 2000, 5,
                    lettuceConnectionFactory.getPassword(), new GenericObjectPoolConfig());
                redisManager.setPassword(lettuceConnectionFactory.getPassword());
                redisManager.setJedisCluster(jedisCluster);
            } else {
                JedisCluster jedisCluster = new JedisCluster(portSet);
                redisManager.setJedisCluster(jedisCluster);
            }
            manager = redisManager;
        }
        return manager;
    }

}

@Slf4j
@RabbitListener(queues = CloudConstant.MQ_JEECG_PLACE_ORDER)
@RabbitComponent(value = "helloReceiver1")
public class HelloReceiver1 extends BaseRabbiMqHandler<BaseMap> {
    @RabbitHandler
    public void onMessage(BaseMap baseMap, Channel channel, @Header(AmqpHeaders.DELIVERY_TAG) long deliveryTag) {
        //使用了父类的方法
        super.onMessage(baseMap, deliveryTag, channel, new MqListener<BaseMap>() {
            @Override
            public void handler(BaseMap map, Channel channel) {
                //业务处理
                String orderId = map.get("orderId").toString();
                log.info("MQ Receiver1，orderId : " + orderId);
            }
        });
    }
}

@Slf4j
public class BaseRabbiMqHandler<T> {

    private String token= UserTokenContext.getToken();

    public void onMessage(T t, Long deliveryTag, Channel channel, MqListener mqListener) {
        try {
            UserTokenContext.setToken(token);
            mqListener.handler(t, channel);
            channel.basicAck(deliveryTag, false);
        } catch (Exception e) {
            log.info("接收消息失败,重新放回队列");
            try {
                /**
                 * deliveryTag:该消息的index
                 * multiple：是否批量.true:将一次性拒绝所有小于deliveryTag的消息。
                 * requeue：被拒绝的是否重新入队列
                 */
                channel.basicNack(deliveryTag, false, true);
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
}

public interface MqListener<T> {

    default void handler(T map, Channel channel) {
    }
}

	public interface MqListener<T> {
	    default void handler(T map, Channel channel) {
	    }
	}

    @Bean
    public void initQueue() {
        //获取带RabbitComponent注解的类
        Map<String, Object> beansWithRqbbitComponentMap = this.applicationContext.getBeansWithAnnotation(RabbitComponent.class);
        Class<? extends Object> clazz = null;
        //循环map
        for (Map.Entry<String, Object> entry : beansWithRqbbitComponentMap.entrySet()) {
            log.info("初始化队列............");
            //获取到实例对象的class信息
            clazz = entry.getValue().getClass();
            Method[] methods = clazz.getMethods();
            //判断是否有RabbitListener注解
            RabbitListener rabbitListener = clazz.getAnnotation(RabbitListener.class);
            //类上有注解 就创建队列
            if (ObjectUtil.isNotEmpty(rabbitListener)) {
                createQueue(rabbitListener);
            }
            //方法上有注解 就创建队列
            for (Method method : methods) {
                RabbitListener methodRabbitListener = method.getAnnotation(RabbitListener.class);
                if (ObjectUtil.isNotEmpty(methodRabbitListener)) {
                    createQueue(methodRabbitListener);
                }
            }
        }
    }

    /**
     * 初始化队列
     *
     * @param rabbitListener
     */
    private void createQueue(RabbitListener rabbitListener) {
        String[] queues = rabbitListener.queues();
        //创建交换机
        DirectExchange directExchange = createExchange(DelayExchangeBuilder.DELAY_EXCHANGE);
        rabbitAdmin.declareExchange(directExchange);
        //创建队列
        if (ObjectUtil.isNotEmpty(queues)) {
            for (String queueName : queues) {
                Properties result = rabbitAdmin.getQueueProperties(queueName);
                if (ObjectUtil.isEmpty(result)) {
                    Queue queue = new Queue(queueName);
                    addQueue(queue);
                    Binding binding = BindingBuilder.bind(queue).to(directExchange).with(queueName);
                    rabbitAdmin.declareBinding(binding);
                    log.info("创建队列:" + queueName);
                }else{
                    log.info("已有队列:" + queueName);
                }
            }
        }
    }

@Scheduled(cron = "0/5 * * * * ?")
    @JLock(lockKey = CloudConstant.REDISSON_DEMO_LOCK_KEY1)
    public void execute() throws InterruptedException {
        log.info("执行execute任务开始，休眠三秒");
        Thread.sleep(3000);
        System.out.println("=======================业务逻辑1=============================");
        Map map = new BaseMap();
        map.put("orderId", "BJ0001");
        rabbitMqClient.sendMessage(CloudConstant.MQ_JEECG_PLACE_ORDER, map);
        //延迟10秒发送
        map.put("orderId", "NJ0002");
        rabbitMqClient.sendMessage(CloudConstant.MQ_JEECG_PLACE_ORDER, map, 10000);
        log.info("execute任务结束，休眠三秒");
    }

    public DemoLockTest() {
    }

    /**
     * 测试分布式锁【编码方式】
     */
    //@Scheduled(cron = "0/5 * * * * ?")
    public void execute2() throws InterruptedException {
        if (redissonLock.tryLock(CloudConstant.REDISSON_DEMO_LOCK_KEY2, -1, 6000)) {
            log.info("执行任务execute2开始，休眠十秒");
            Thread.sleep(10000);
            System.out.println("=======================业务逻辑2=============================");
            log.info("定时execute2结束，休眠十秒");

            redissonLock.unlock(CloudConstant.REDISSON_DEMO_LOCK_KEY2);
        } else {
            log.info("execute2获取锁失败");
        }
    }

    @Around("pointCut(jRepeat)")
    public Object repeatSubmit(ProceedingJoinPoint joinPoint,JRepeat jRepeat) throws Throwable {
        String[] parameterNames = new LocalVariableTableParameterNameDiscoverer().getParameterNames(((MethodSignature) joinPoint.getSignature()).getMethod());
        if (Objects.nonNull(jRepeat)) {
            // 获取参数
            Object[] args = joinPoint.getArgs();
            // 进行一些参数的处理，比如获取订单号，操作人id等
            StringBuffer lockKeyBuffer = new StringBuffer();
            String key =getValueBySpEL(jRepeat.lockKey(), parameterNames, args,"RepeatSubmit").get(0);
            // 公平加锁，lockTime后锁自动释放
            boolean isLocked = false;
            try {
                isLocked = redissonLockClient.fairLock(key, TimeUnit.SECONDS, jRepeat.lockTime());
                // 如果成功获取到锁就继续执行
                if (isLocked) {
                    // 执行进程
                    return joinPoint.proceed();
                } else {
                    // 未获取到锁
                    throw new Exception("请勿重复提交");
                }
            } finally {
                // 如果锁还存在，在方法执行完成后，释放锁
                if (isLocked) {
                    redissonLockClient.unlock(key);
                }
            }
        }
        return joinPoint.proceed();
    }

    //jLock切面，进行加锁
    @SneakyThrows
    @Around("@annotation(jLock)")
    public Object around(ProceedingJoinPoint joinPoint, JLock jLock) {
        Object obj = null;
        log.info("进入RedisLock环绕通知...");
        RLock rLock = getLock(joinPoint, jLock);
        boolean res = false;
        //获取超时时间
        long expireSeconds = jLock.expireSeconds();
        //等待多久,n秒内获取不到锁，则直接返回
        long waitTime = jLock.waitTime();
        //执行aop
        if (rLock != null) {
            try {
                if (waitTime == -1) {
                    res = true;
                    //一直等待加锁
                    rLock.lock(expireSeconds, TimeUnit.MILLISECONDS);
                } else {
                    res = rLock.tryLock(waitTime, expireSeconds, TimeUnit.MILLISECONDS);
                }
                if (res) {
                    obj = joinPoint.proceed();
                } else {
                    log.error("获取锁异常");
                }
            } finally {
                if (res) {
                    rLock.unlock();
                }
            }
        }
        log.info("结束RedisLock环绕通知...");
        return obj;
    }

    //通过参数判断加锁类型
    @SneakyThrows
    private RLock getLock(ProceedingJoinPoint joinPoint, JLock jLock) {
        //获取key
        String[] keys = jLock.lockKey();
        if (keys.length == 0) {
            throw new RuntimeException("keys不能为空");
        }
        //获取参数
        String[] parameterNames = new LocalVariableTableParameterNameDiscoverer().getParameterNames(((MethodSignature) joinPoint.getSignature()).getMethod());
        Object[] args = joinPoint.getArgs();
        LockModel lockModel = jLock.lockModel();
        if (!lockModel.equals(LockModel.MULTIPLE) && !lockModel.equals(LockModel.REDLOCK) && keys.length > 1) {
            throw new RuntimeException("参数有多个,锁模式为->" + lockModel.name() + ".无法锁定");
        }
        RLock rLock = null;
        String keyConstant = jLock.keyConstant();
        //判断锁类型
        if (lockModel.equals(LockModel.AUTO)) {
            if (keys.length > 1) {
                lockModel = LockModel.REDLOCK;
            } else {
                lockModel = LockModel.REENTRANT;
            }
        }
        //根据不同的锁类型执行不同的加锁方式
        switch (lockModel) {
            case FAIR:
                rLock = redissonClient.getFairLock(getValueBySpEL(keys[0], parameterNames, args, keyConstant).get(0));
                break;
            case REDLOCK:
                List<RLock> rLocks = new ArrayList<>();
                for (String key : keys) {
                    List<String> valueBySpEL = getValueBySpEL(key, parameterNames, args, keyConstant);
                    for (String s : valueBySpEL) {
                        rLocks.add(redissonClient.getLock(s));
                    }
                }
                RLock[] locks = new RLock[rLocks.size()];
                int index = 0;
                for (RLock r : rLocks) {
                    locks[index++] = r;
                }
                rLock = new RedissonRedLock(locks);
                break;
            case MULTIPLE:
                rLocks = new ArrayList<>();
                for (String key : keys) {
                    List<String> valueBySpEL = getValueBySpEL(key, parameterNames, args, keyConstant);
                    for (String s : valueBySpEL) {
                        rLocks.add(redissonClient.getLock(s));
                    }
                }
                locks = new RLock[rLocks.size()];
                index = 0;
                for (RLock r : rLocks) {
                    locks[index++] = r;
                }
                rLock = new RedissonMultiLock(locks);
                break;
            case REENTRANT:
                List<String> valueBySpEL = getValueBySpEL(keys[0], parameterNames, args, keyConstant);
                //如果spel表达式是数组或者LIST 则使用红锁
                if (valueBySpEL.size() == 1) {
                    rLock = redissonClient.getLock(valueBySpEL.get(0));
                } else {
                    locks = new RLock[valueBySpEL.size()];
                    index = 0;
                    for (String s : valueBySpEL) {
                        locks[index++] = redissonClient.getLock(s);
                    }
                    rLock = new RedissonRedLock(locks);
                }
                break;
            case READ:
                rLock = redissonClient.getReadWriteLock(getValueBySpEL(keys[0], parameterNames, args, keyConstant).get(0)).readLock();
                break;
            case WRITE:
                rLock = redissonClient.getReadWriteLock(getValueBySpEL(keys[0], parameterNames, args, keyConstant).get(0)).writeLock();
                break;
        }
        return rLock;
    }

public class RedissonLockClient {

    @Autowired
    private RedissonClient redissonClient;

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    /**
     * 获取锁
     */
    public RLock getLock(String lockKey) {
        return redissonClient.getLock(lockKey);
    }

    /**
     * 加锁操作
     *
     * @return boolean
     */
    public boolean tryLock(String lockName, long expireSeconds) {
        return tryLock(lockName, 0, expireSeconds);
    }
    .
    .
    .

public class RedissonManager {
    public Redisson getRedisson() {
        return redisson;
    }

    //Redisson连接方式配置工厂
    static class RedissonConfigFactory {

        private RedissonConfigFactory() {
        }

        private static volatile RedissonConfigFactory factory = null;

        public static RedissonConfigFactory getInstance() {
            if (factory == null) {
                synchronized (Object.class) {
                    if (factory == null) {
                        factory = new RedissonConfigFactory();
                    }
                }
            }
            return factory;
        }


        //根据连接类型創建连接方式的配置
        Config createConfig(RedissonProperties redissonProperties) {
            Preconditions.checkNotNull(redissonProperties);
            Preconditions.checkNotNull(redissonProperties.getAddress(), "redis地址未配置");
            RedisConnectionType connectionType = redissonProperties.getType();
            // 声明连接方式
            RedissonConfigStrategy redissonConfigStrategy;
            if (connectionType.equals(RedisConnectionType.SENTINEL)) {
                redissonConfigStrategy = new SentinelRedissonConfigStrategyImpl();
            } else if (connectionType.equals(RedisConnectionType.CLUSTER)) {
                redissonConfigStrategy = new ClusterRedissonConfigStrategyImpl();
            } else if (connectionType.equals(RedisConnectionType.MASTERSLAVE)) {
                redissonConfigStrategy = new MasterslaveRedissonConfigStrategyImpl();
            } else {
                redissonConfigStrategy = new StandaloneRedissonConfigStrategyImpl();
            }
            Preconditions.checkNotNull(redissonConfigStrategy, "连接方式创建异常");

            return redissonConfigStrategy.createRedissonConfig(redissonProperties);
        }
    }
}

//策略实现，此类是指定redis的连接方式是哨兵。
public class SentinelRedissonConfigStrategyImpl implements RedissonConfigStrategy {

	@Override
	public Config createRedissonConfig(RedissonProperties redissonProperties) {
		Config config = new Config();
		try {
			String address = redissonProperties.getAddress();
			String password = redissonProperties.getPassword();
			int database = redissonProperties.getDatabase();
			String[] addrTokens = address.split(",");
			String sentinelAliasName = addrTokens[0];
			// 设置redis配置文件sentinel.conf配置的sentinel别名
			config.useSentinelServers().setMasterName(sentinelAliasName);
			config.useSentinelServers().setDatabase(database);
			if (StringUtils.isNotBlank(password)) {
				config.useSentinelServers().setPassword(password);
			}
			// 设置哨兵节点的服务IP和端口
			for (int i = 1; i < addrTokens.length; i++) {
				config.useSentinelServers().addSentinelAddress(GlobalConstant.REDIS_CONNECTION_PREFIX+ addrTokens[i]);
			}
			log.info("初始化哨兵方式Config,redisAddress:" + address);
		} catch (Exception e) {
			log.error("哨兵Redisson初始化错误", e);
			e.printStackTrace();
		}
		return config;
	}
}