openfeign 连接池配置
时间: 2023-09-05 17:12:41 浏览: 198
在OpenFeign中,可以通过配置连接池来优化性能。以下是配置OpenFeign连接池的步骤:
1. 首先,需要添加Apache HttpClient的依赖,以替换OpenFeign底层默认的客户端URLConnection。在项目的pom.xml文件中添加以下依赖:
```xml
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
```
2. 在配置文件中配置连接池的相关属性。可以根据具体需求配置以下属性:
- `feign.httpclient.connection-manager.max-total`: 指定连接池的最大连接数,默认为20。
- `feign.httpclient.connection-manager.default-max-per-route`: 指定每个路由的默认最大连接数,默认为2。
- `feign.httpclient.connection-ttl`: 指定连接的存活时间,单位为毫秒,默认为-1(永久存活)。
- `feign.httpclient.backoff-slot-count`: 指定连接池的回退槽数量,默认为2。
例如,在application.properties文件中配置连接池属性:
```
feign.httpclient.connection-manager.max-total=50
feign.httpclient.connection-manager.default-max-per-route=10
feign.httpclient.connection-ttl=30000
feign.httpclient.backoff-slot-count=3
```
3. 最后,需要在FeignClient接口上添加`@Primary`注解,以便使用Apache HttpClient作为底层客户端。例如:
```java
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.context.annotation.Primary;
@Primary
@FeignClient(name = "example-service", url = "http://example.com")
public interface ExampleFeignClient {
// ...
}
```
通过以上步骤,就可以配置OpenFeign的连接池并实现性能优化。注意,以上示例是使用Apache HttpClient作为底层客户端的配置方式,你也可以选择其他的HTTP客户端实现。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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