关于依赖的一些优化建议

[Shiyajian]

我编写了一个Spring Boot 和 Dubbo 2.7.0 的 Demo，刚开始时候，完全按照 ReadMe 中的配置编写，结果报错，错误如下：

Caused by: java.lang.ClassNotFoundException: org.apache.curator.retry.ExponentialBackoffRetry

后来参考了 dubbo-registry-zookeeper-samples项目，发现还缺少以下依赖：

        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>log4j</artifactId>
                    <groupId>log4j</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>slf4j-log4j12</artifactId>
                    <groupId>org.slf4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>

增加了这几个依赖之后，项目就可以正常启动使用了。 咱们这边是否可以考虑下，将这三个依赖补充到 ReadeMe 中，或者增加到 boot-dubbo-spring-starter 的pom依赖中呢？

[mercyblitz]

Thanks for your good suggestion, it will be added into REAMD.md.

[mercyblitz]

Thanks for your good suggestion, it will be added into REAMD.md.

[Curtaingit]

Today, I also encountered this problem.
Thanks for you answer.

[kleen]

I also encountered this problem.