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README
MulanPSL-2.0

基于SpringBoot + Redis Stream 实现消息队列

添加redis依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
  • JDK —— Version 1.8
  • Maven —— Version 3.6.3
  • SpringBoot —— Version 2.4.3

使用说明

该项目为redis stream 作为消息队列的一个简单demo,大家可以根据自己需求进行修改,代码中主要的 ,运行该demo时只需要将application.yml中的配置信息改为自己的即可。

测试方法

启动程序后分别访问一下测试接口

http://localhost:8080/test/sendTest/mystream1
http://localhost:8080/test/sendTest/mystream2

控制台打印

2022-01-27 10:18:48.298  INFO 10552 --- [nio-8080-exec-5] v.huhailong.redismq.redistool.RedisUtil  : 添加成功:1643249866013-0
2022-01-27 10:18:48.302  INFO 10552 --- [cTaskExecutor-1] v.h.redismq.redistool.ListenerMessage    : 接受到来自redis的消息
message id 1643249866013-0
stream mystream1
body {test=hello redismq, send time=2022-01-27 10:18:48}
2022-01-27 10:18:54.080  INFO 10552 --- [nio-8080-exec-7] v.huhailong.redismq.redistool.RedisUtil  : 添加成功:1643249871795-0
2022-01-27 10:18:54.080  INFO 10552 --- [cTaskExecutor-2] v.h.redismq.redistool.ListenerMessage    : 接受到来自redis的消息
message id 1643249871795-0
stream mystream2
body {test=hello redismq, send time=2022-01-27 10:18:54}

测试多多个key多接受能力借口


curl -X GET http://localhost:8080/test/moreTest/10  //后面多10可以更改

注意:如果插入redis多数量很大,建议将插入放到集合后分批批量插入,例如100万条数据可以分为100次插入,每次1万条,这样可以减少I/O操作,加快速度

List分割方法

public class ListUtil {

    /**
     * 集合分割工具类
     * @param max 分割后集合最大数量
     * @param list 要分割多集合
     * @return 返回分割后多集合
     */
    public static List<List<String>> cutApart(int max, List<String> list){
        List<List<String>> resultList = new ArrayList<>();
        Stream.iterate(0, n->n+1).limit(countStep(list.size(), max)).forEach(i->{
            resultList.add(list.stream().skip(i*max).limit(max).collect(Collectors.toList()));
        });
        return resultList;
    }

    private static Integer countStep(int size, int max){
        return (size + max - 1) / max;
    }
}
木兰宽松许可证, 第2版 木兰宽松许可证, 第2版 2020年1月 http://license.coscl.org.cn/MulanPSL2 您对“软件”的复制、使用、修改及分发受木兰宽松许可证,第2版(“本许可证”)的如下条款的约束: 0. 定义 “软件”是指由“贡献”构成的许可在“本许可证”下的程序和相关文档的集合。 “贡献”是指由任一“贡献者”许可在“本许可证”下的受版权法保护的作品。 “贡献者”是指将受版权法保护的作品许可在“本许可证”下的自然人或“法人实体”。 “法人实体”是指提交贡献的机构及其“关联实体”。 “关联实体”是指,对“本许可证”下的行为方而言,控制、受控制或与其共同受控制的机构,此处的控制是指有受控方或共同受控方至少50%直接或间接的投票权、资金或其他有价证券。 1. 授予版权许可 每个“贡献者”根据“本许可证”授予您永久性的、全球性的、免费的、非独占的、不可撤销的版权许可,您可以复制、使用、修改、分发其“贡献”,不论修改与否。 2. 授予专利许可 每个“贡献者”根据“本许可证”授予您永久性的、全球性的、免费的、非独占的、不可撤销的(根据本条规定撤销除外)专利许可,供您制造、委托制造、使用、许诺销售、销售、进口其“贡献”或以其他方式转移其“贡献”。前述专利许可仅限于“贡献者”现在或将来拥有或控制的其“贡献”本身或其“贡献”与许可“贡献”时的“软件”结合而将必然会侵犯的专利权利要求,不包括对“贡献”的修改或包含“贡献”的其他结合。如果您或您的“关联实体”直接或间接地,就“软件”或其中的“贡献”对任何人发起专利侵权诉讼(包括反诉或交叉诉讼)或其他专利维权行动,指控其侵犯专利权,则“本许可证”授予您对“软件”的专利许可自您提起诉讼或发起维权行动之日终止。 3. 无商标许可 “本许可证”不提供对“贡献者”的商品名称、商标、服务标志或产品名称的商标许可,但您为满足第4条规定的声明义务而必须使用除外。 4. 分发限制 您可以在任何媒介中将“软件”以源程序形式或可执行形式重新分发,不论修改与否,但您必须向接收者提供“本许可证”的副本,并保留“软件”中的版权、商标、专利及免责声明。 5. 免责声明与责任限制 “软件”及其中的“贡献”在提供时不带任何明示或默示的担保。在任何情况下,“贡献者”或版权所有者不对任何人因使用“软件”或其中的“贡献”而引发的任何直接或间接损失承担责任,不论因何种原因导致或者基于何种法律理论,即使其曾被建议有此种损失的可能性。 6. 语言 “本许可证”以中英文双语表述,中英文版本具有同等法律效力。如果中英文版本存在任何冲突不一致,以中文版为准。 条款结束 如何将木兰宽松许可证,第2版,应用到您的软件 如果您希望将木兰宽松许可证,第2版,应用到您的新软件,为了方便接收者查阅,建议您完成如下三步: 1, 请您补充如下声明中的空白,包括软件名、软件的首次发表年份以及您作为版权人的名字; 2, 请您在软件包的一级目录下创建以“LICENSE”为名的文件,将整个许可证文本放入该文件中; 3, 请将如下声明文本放入每个源文件的头部注释中。 Copyright (c) [Year] [name of copyright holder] [Software Name] is licensed under Mulan PSL v2. 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简介

基于 redis stream 实现MQ消息 展开 收起
Java
MulanPSL-2.0
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