### Create and Use RateLimiter for QPS Control

Source: https://help.aliyun.com/zh/quick-bi/developer-reference/sdk-user-guide

Demonstrates how to create a RateLimiter instance with a specified QPS limit and acquire a permit before making API requests to prevent exceeding the rate limit.

```java
// 创建一个30 QPS的流控RateLimiter。
RateLimiter rateLimiter = RateLimiter.create(30);
// 获取许可，如果QPS超过30，则阻塞等待。
rateLimiter.acquire();
// 获得许可，才会进行接口请求。
doSomeAPIRequest();
```

--------------------------------

### Add Maven Dependency for Guava

Source: https://help.aliyun.com/zh/quick-bi/developer-reference/sdk-user-guide

Include this dependency in your pom.xml if you are using Maven to manage your Java project and need to use Guava's RateLimiter for QPS control.

```xml
<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>${google.guava.version}</version>
</dependency>
```