<dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-simple</artifactId>
        <version>1.7.21</version>
    </dependency>

将上述依赖项放在pom.xml文件中

他们的官网给出了解决方案:

Failed to load class org.slf4j.impl.StaticLoggerBinder This warning message is reported when the org.slf4j.impl.StaticLoggerBinder class could not be loaded into memory. This happens when no appropriate SLF4J binding could be found on the class path. Placing one (and only one) of slf4j-nop.jar slf4j-simple.jar, slf4j-log4j12.jar, slf4j-jdk14.jar or logback-classic.jar on the class path should solve the problem. SINCE 1.6.0 As of SLF4J version 1.6, in the absence of a binding, SLF4J will default to a no-operation (NOP) logger implementation. If you are responsible for packaging an application and do not care about logging, then placing slf4j-nop.jar on the class path of your application will get rid of this warning message. Note that embedded components such as libraries or frameworks should not declare a dependency on any SLF4J binding but only depend on slf4j-api. When a library declares a compile-time dependency on a SLF4J binding, it imposes that binding on the end-user, thus negating SLF4J's purpose.

解决方案:我已经添加到我的项目中使用intellij的maven研究，我选择了slf4j-jdk14.jar。

Slf4j是底层日志框架(如log4j、logback、java.util.logging)的门面。

为了连接底层框架，slf4j使用了绑定。

log4j - slf4j-log4j12-1.7.21.jar java.util.logging – slf4j-jdk14-1.7.21.jar etc

如果没有绑定jar，就会抛出上述错误。您可以下载这个jar并将其添加到类路径中。

对于maven依赖，

<dependency> 
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-log4j12</artifactId>
  <version>1.7.21</version>
</dependency>

除了slf4j-log4j12-1.7.21.jar之外，这个依赖项还将slf4j-api-1.7.21.jar以及log4j-1.2.17.jar拉到您的项目中

参考:http://www.slf4j.org/manual.html

您需要在类路径中添加以下jar文件:slf4j-simple-1.6.2.jar。如果你没有，请下载。请参考http://www.slf4j.org/codes.html#multiple_bindings

我没有添加任何依赖项，我只是改变了我使用它们的方式。

预览代码

(如果您使用的是弹性搜索版本< 7.0，则取消注释此代码)

IndexRequest indexRequest = new IndexRequest(
  "twitter",
  "tweets",
  id // this is to make our consumer idempotent
).source(record.value(), XContentType.JSON);

当前代码

IndexRequest indexRequest = new IndexRequest("tweets")
  .source(record.value(), XContentType.JSON)
  .id(id); // this is to make our consumer idempotent

我使用bulkrequest，并删除了这个错误。

我在使用Java 9库的Spring-boot-2应用程序时也遇到了类似的问题。

在我的pom.xml中添加以下依赖项为我解决了这个问题:

<dependency>
    <groupId>com.googlecode.slf4j-maven-plugin-log</groupId>
    <artifactId>slf4j-maven-plugin-log</artifactId>
    <version>1.0.0</version>
</dependency>