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增加 Redis 分布式锁

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This commit is contained in:
YunaiV 2021-02-24 01:35:41 +08:00
parent 94dfe41153
commit 53db9de93d
13 changed files with 109 additions and 6 deletions
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3
README.md
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@ -38,6 +38,8 @@
1. Redis 监控：监控 Redis 数据库的使用情况，使用的 Redis Key 管理
1. Java 监控：基于 Spring Boot Admin 实现 Java 应用的监控
1. 链路追踪：基于 SkyWalking 实现性能监控，特别是链路的追踪
1. 分布式锁：基于 Redis 实现分布式锁，满足并发场景
1. 幂等组件：基于 Redis 实现幂等组件，解决重复请求问题
### 研发工具
@ -45,7 +47,6 @@
1. 代码生成：前后端代码的生成（Java、Vue、SQL），支持 CRUD 下载
1. 系统接口：基于 Swagger 自动生成相关的 RESTful API 接口文档
1. 数据库文档：基于 Screw 自动生成数据库文档
1. 幂等组件：基于 Redis 实现幂等组件，解决重复请求问题
## 在线体验

2
http-client.env.json
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@ -1,6 +1,6 @@
{
"local": {
"baseUrl": "http://127.0.0.1:8080/api",
"baseUrl": "http://127.0.0.1:48080/api",
"token": "test1"
}
}

15
pom.xml
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@ -30,6 +30,10 @@
<druid.version>1.2.4</druid.version>
<mybatis-plus.version>3.4.1</mybatis-plus.version>
<redisson.version>3.14.1</redisson.version>
<!-- Config 配置中心相关 -->
<apollo.version>1.7.0</apollo.version>
<!-- 服务保障相关 -->
<lock4j.version>2.2.0</lock4j.version>
<!-- 监控相关 -->
<skywalking.version>8.3.0</skywalking.version>
<spring-boot-admin.version>2.3.1</spring-boot-admin.version>
@ -125,7 +129,7 @@
<dependency>
<groupId>com.ctrip.framework.apollo</groupId>
<artifactId>apollo-client</artifactId> <!-- 引入 Apollo Client 库，实现内嵌的配置中心 -->
<version>1.7.0</version>
<version>${apollo.version}</version>
</dependency>
<!-- Job 定时任务相关 -->
@ -134,6 +138,13 @@
<artifactId>spring-boot-starter-quartz</artifactId>
</dependency>
<!-- 服务保障相关 -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>lock4j-redisson-spring-boot-starter</artifactId>
<version>${lock4j.version}</version>
</dependency>
<!-- 监控相关 -->
<dependency>
<groupId>org.apache.skywalking</groupId>
@ -217,7 +228,7 @@
<dependency>
<groupId>cn.smallbun.screw</groupId>
<artifactId>screw-core</artifactId>
<artifactId>screw-core</artifactId> <!-- 实现数据库文档 -->
<version>${screw.version}</version>
</dependency>

3
src/main/java/cn/iocoder/dashboard/common/exception/enums/GlobalErrorCodeConstants.java
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@ -29,7 +29,8 @@ public interface GlobalErrorCodeConstants {
ErrorCode INTERNAL_SERVER_ERROR = new ErrorCode(500, "系统异常");
// ========== 自定义错误段 ==========
ErrorCode REPEATED_REQUESTS = new ErrorCode(900, "重复请求");
ErrorCode REPEATED_REQUESTS = new ErrorCode(900, "重复请求，请稍后重试"); // 重复请求
ErrorCode CONCURRENCY_REQUESTS = new ErrorCode(901, "请求失败，请稍后重试"); // 并发请求，不允许
ErrorCode UNKNOWN = new ErrorCode(999, "未知错误");

23
src/main/java/cn/iocoder/dashboard/framework/lock4j/config/Lock4jConfiguration.java Normal file
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@ -0,0 +1,23 @@
package cn.iocoder.dashboard.framework.lock4j.config;
import cn.hutool.core.util.ClassUtil;
import cn.iocoder.dashboard.framework.lock4j.core.DefaultLockFailureStrategy;
import cn.iocoder.dashboard.framework.lock4j.core.Lock4jRedisKeyConstants;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class Lock4jConfiguration {
static {
// 手动加载 Lock4jRedisKeyConstants 类，因为它不会被使用到
// 如果不加载，会导致 Redis 监控，看到它的 Redis Key 枚举
ClassUtil.loadClass(Lock4jRedisKeyConstants.class.getName());
}
@Bean
public DefaultLockFailureStrategy lockFailureStrategy() {
return new DefaultLockFailureStrategy();
}
}

20
src/main/java/cn/iocoder/dashboard/framework/lock4j/core/DefaultLockFailureStrategy.java Normal file
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@ -0,0 +1,20 @@
package cn.iocoder.dashboard.framework.lock4j.core;
import cn.iocoder.dashboard.common.exception.ServiceException;
import cn.iocoder.dashboard.common.exception.enums.GlobalErrorCodeConstants;
import com.baomidou.lock.LockFailureStrategy;
import lombok.extern.slf4j.Slf4j;
/**
* 自定义获取锁失败策略，抛出 {@link cn.iocoder.dashboard.common.exception.ServiceException} 异常
*/
@Slf4j
public class DefaultLockFailureStrategy implements LockFailureStrategy {
@Override
public void onLockFailure(String key, long acquireTimeout, int acquireCount) {
log.debug("[onLockFailure][线程:{} 获取锁失败，key:{} 获取超时时长:{} ms]", Thread.currentThread().getName(), key, acquireTimeout);
throw new ServiceException(GlobalErrorCodeConstants.CONCURRENCY_REQUESTS);
}
}

19
src/main/java/cn/iocoder/dashboard/framework/lock4j/core/Lock4jRedisKeyConstants.java Normal file
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@ -0,0 +1,19 @@
package cn.iocoder.dashboard.framework.lock4j.core;
import cn.iocoder.dashboard.framework.redis.core.RedisKeyDefine;
import org.redisson.api.RLock;
import static cn.iocoder.dashboard.framework.redis.core.RedisKeyDefine.KeyTypeEnum.HASH;
/**
* Lock4j Redis Key 枚举类
*
* @author 芋道源码
*/
public interface Lock4jRedisKeyConstants {
RedisKeyDefine LOCK4J = new RedisKeyDefine("分布式锁",
"lock4j:%s", // 参数来自 DefaultLockKeyBuilder 类
HASH, RLock.class, RedisKeyDefine.TimeoutTypeEnum.DYNAMIC); // Redisson 的 Lock 锁，使用 Hash 数据结构
}

4
src/main/java/cn/iocoder/dashboard/framework/lock4j/package-info.java Normal file
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@ -0,0 +1,4 @@
/**
* 分布式锁组件，使用 https://gitee.com/baomidou/lock4j 开源项目
*/
package cn.iocoder.dashboard.framework.lock4j;

2
src/main/java/cn/iocoder/dashboard/modules/system/dal/redis/SysRedisKeyConstants.java
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@ -8,7 +8,7 @@ import java.time.Duration;
import static cn.iocoder.dashboard.framework.redis.core.RedisKeyDefine.KeyTypeEnum.STRING;
/**
* Redis Key 枚举类
* System Redis Key 枚举类
*
* @author 芋道源码
*/

3
src/main/java/cn/iocoder/dashboard/modules/tool/controller/test/ToolTestDemoController.http Normal file
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@ -0,0 +1,3 @@
### 请求 /get-permission-info 接口 => 成功
GET {{baseUrl}}/tool/test-demo/get?id=1
Authorization: Bearer {{token}}

7
src/main/java/cn/iocoder/dashboard/modules/tool/controller/test/ToolTestDemoController.java
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@ -1,5 +1,6 @@
package cn.iocoder.dashboard.modules.tool.controller.test;
import cn.hutool.core.thread.ThreadUtil;
import cn.iocoder.dashboard.common.pojo.CommonResult;
import cn.iocoder.dashboard.common.pojo.PageResult;
import cn.iocoder.dashboard.framework.excel.core.util.ExcelUtils;
@ -8,6 +9,7 @@ import cn.iocoder.dashboard.modules.tool.controller.test.vo.*;
import cn.iocoder.dashboard.modules.tool.convert.test.ToolTestDemoConvert;
import cn.iocoder.dashboard.modules.tool.dal.dataobject.test.ToolTestDemoDO;
import cn.iocoder.dashboard.modules.tool.service.test.ToolTestDemoService;
import com.baomidou.lock.annotation.Lock4j;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
@ -21,6 +23,7 @@ import javax.validation.Valid;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.TimeUnit;
import static cn.iocoder.dashboard.common.pojo.CommonResult.success;
import static cn.iocoder.dashboard.framework.logger.operatelog.core.enums.OperateTypeEnum.EXPORT;
@ -62,7 +65,11 @@ public class ToolTestDemoController {
@ApiOperation("获得测试示例")
@ApiImplicitParam(name = "id", value = "编号", required = true, dataTypeClass = Long.class)
@PreAuthorize("@ss.hasPermission('tool:test-demo:query')")
@Lock4j // 分布式锁
public CommonResult<ToolTestDemoRespVO> getTestDemo(@RequestParam("id") Long id) {
if (true) { // 测试分布式锁
ThreadUtil.sleep(5, TimeUnit.SECONDS);
}
ToolTestDemoDO testDemo = testDemoService.getTestDemo(id);
return success(ToolTestDemoConvert.INSTANCE.convert(testDemo));
}

7
src/main/resources/application-dev.yaml
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@ -81,6 +81,13 @@ apollo:
username: ${spring.datasource.username}
password: ${spring.datasource.password}
--- #################### 服务保障相关配置 ####################
# Lock4j 配置项
lock4j:
acquire-timeout: 3000 # 获取分布式锁超时时间，默认为 3000 毫秒
expire: 30000 # 分布式锁的超时时间，默认为 30 毫秒
--- #################### 监控相关配置 ####################
# Actuator 监控端点的配置项

7
src/main/resources/application-local.yaml
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@ -81,6 +81,13 @@ apollo:
username: ${spring.datasource.username}
password: ${spring.datasource.password}
--- #################### 服务保障相关配置 ####################
# Lock4j 配置项
lock4j:
acquire-timeout: 3000 # 获取分布式锁超时时间，默认为 3000 毫秒
expire: 30000 # 分布式锁的超时时间，默认为 30 毫秒
--- #################### 监控相关配置 ####################
# Actuator 监控端点的配置项