feign启用网络压缩

以你之姓@ 2022-12-15 00:59 201阅读 0赞

Spring Cloud  feign支持对请求与响应进行GZIP压缩,以减少通信中的性能损耗.

在spring-cloud-openfeign-core.jar文件中.默认对请求和相应压缩是禁用的，从org.springframework.cloud.openfeign.encoding;.FeignContentGzipEncodingAutoConfiguration类中可以看到请求压缩是禁用的.

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5neWluZ2NoZW5ncWk_size_16_color_FFFFFF_t_70][]

@ConditionalOnProperty(
        value = {"feign.compression.request.enabled"},
        matchIfMissing = false
    )
    @AutoConfigureAfter({FeignAutoConfiguration.class})
    public class FeignContentGzipEncodingAutoConfiguration {
    
    }

在org.springframework.cloud.openfeign.encoding. FeignAcceptGzipEncodingAutoConfiguration类中可以看到响应压缩也是禁用的,

@ConditionalOnProperty(
        value = {"feign.compression.response.enabled"},
        matchIfMissing = false
    )
    @ConditionalOnMissingBean(
        type = {"okhttp3.OkHttpClient"}
    )
    @AutoConfigureAfter({FeignAutoConfiguration.class})
    public class FeignAcceptGzipEncodingAutoConfiguration {
    
    }

而在  org.springframework.cloud.openfeign.encoding.FeignClientEncodingProperties中配置了一些默认的编码属性，包括待压缩的文件格式，及启用压缩功能的最小文件大小.

@ConfigurationProperties("feign.compression.request")
    public class FeignClientEncodingProperties {
    
    	/**
    	 * The list of supported mime types.
    	 */
    	private String[] mimeTypes = new String[] { "text/xml", "application/xml",
    			"application/json" };
    
    	/**
    	 * The minimum threshold content size.
    	 */
    	private int minRequestSize = 2048;
    」

所以我们可以在feign项目中修改applicatoin.yml配置开启压缩

feign:
     compression:
      request:
        enabled: true
        mime-types: # 可以被压缩的类型
         - text/xml
         - application/xml
         - application/json
        min-request-size: 2048 # 超过2048的字节进行压缩

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5neWluZ2NoZW5ncWk_size_16_color_FFFFFF_t_70]: /images/20221123/67b32f8bbdfe4762b25f4a724dd9a604.png