Spring Cloud Open Feign：gzip响应正文中的换行符“ \ n”被剥离

问题描述

在Spring Cloud Open Feign中使用响应压缩配置（如下所示）时，从 gzip 响应正文中删除了

换行符（“ \ n”或“ \ r”）。没有引发任何错误。换行符只是被替换为空字符串“”。该响应具有正确的“ content-encoding：gzip”标头，以及格式正确的gzip压缩内容。

有人有线索吗？当我在这里 spring-cloud-openfeign/issue400

开业时，这对我来说似乎是个问题

feign.compression.response.enabled: true
feign.compression.response.useGzipDecoder: true

# Same behavIoUr using Apache Http as client
feign.httpclient.enabled: true

SpringCloudFeignClient.java

package springcloudfeigngzip;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;

@FeignClient(name = "SpringCloudFeignClient",url = "http://localhost:8082")
public interface SpringCloudFeignClient {
    @GetMapping(value = "/gzip")
    String getGzippedString();     
}

ApplicationTest.java：

package springcloudfeigngzip;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBoottest;
import org.springframework.cloud.contract.wiremock.AutoConfigurewiremock;
import static com.github.tomakehurst.wiremock.client.wiremock.*;
import static org.junit.jupiter.api.Assertions.assertEquals;

@SpringBoottest
@AutoConfigurewiremock(port = 8082)
class ApplicationTest {
    @Autowired
    private SpringCloudFeignClient springCloudFeignClient;

    @Test
    void success_GzipOneLine() {
        stubFor(get(urlEqualTo("/gzip")).withHeader("Accept-Encoding",containing("gzip"))
                .willReturn(aResponse().withStatus(200).withBody("lineone")));
    
        String response = springCloudFeignClient.getGzippedString();
        assertEquals("lineone",response); //success
    }

    @Test
    void fail_GzipLineBreak() {
        stubFor(get(urlEqualTo("/gzip")).withHeader("Accept-Encoding",containing("gzip"))
                .willReturn(aResponse().withStatus(200).withBody("lineone\nlinetwo")));
    
        String response = springCloudFeignClient.getGzippedString();
        assertEquals("lineone\nlinetwo",response); //fail!
    }
}

bootstrap.yml：

feign:
  compression:
    response:
      enabled: true
      useGzipDecoder: true

版本：

org.springframework.boot: 2.3.3.RELEASE
org.springframework.cloud: Hoxton.SR8

此处的完整项目： https://github.com/spring-cloud/spring-cloud-openfeign/files/5147346/spring-cloud-feign-gzip.zip

解决方法

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openfeign spring spring-cloud