springboot关闭ratelimiter
时间: 2023-09-02 14:10:22 浏览: 120
要在Spring Boot中关闭RateLimiter,你可以采取以下步骤:
1. 导入所需的依赖:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</dependency>
```
2. 创建一个自定义注解,用于标记需要限流的方法:
```java
import java.lang.annotation.*;
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface RateLimited {
String value() default "";
}
```
3. 创建一个切面类,用于实现限流逻辑:
```java
import com.google.common.util.concurrent.RateLimiter;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
@Aspect
@Component
public class RateLimitAspect {
private final RateLimiter rateLimiter = RateLimiter.create(10); // 设置每秒最大访问次数
@Pointcut("@annotation(com.example.RateLimited)")
public void rateLimited() {}
@Around("rateLimited()")
public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
if (rateLimiter.tryAcquire()) {
return joinPoint.proceed();
} else {
throw new RuntimeException("请求过于频繁,请稍后再试!");
}
}
}
```
4. 在需要进行限流的方法上添加自定义注解:
```java
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class MyController {
@RateLimited // 添加此注解进行限流
@GetMapping("/my-api")
public String myApi() {
// 处理业务逻辑
return "Hello World!";
}
}
```
这样,当请求频率超过每秒最大访问次数时,将会抛出一个RuntimeException。你可以根据实际需求进行调整。
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