Feign【开启GIZP压缩】

SpringCloudFeign支持对请求和响应进行gzip压缩，以此来提高通信效率。

1、搭建gzip-demo工程

1.1、工程依赖：

<parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>2.0.3.RELEASE</version>

        <relativePath/>

</parent>

<properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <java.version>1.8</java.version>

        <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>

</properties>

<dependencyManagement>

        <dependencies>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-dependencies</artifactId>

                <version>${spring-cloud.version}</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

        </dependencies>

</dependencyManagement>

<dependencies>

    <dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-web</artifactId>

    </dependency>

    <!-- Spring Cloud OpenFeign的Starter的依赖 -->

    <dependency>

        <groupId>org.springframework.cloud</groupId>

        <artifactId>spring-cloud-starter-openfeign</artifactId>

    </dependency>

</dependencies>

<build>

    <plugins>

        <plugin>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-maven-plugin</artifactId>

        </plugin>

    </plugins>

</build>

1.2、工程启动类：

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.openfeign.EnableFeignClients;

@SpringBootApplication

@EnableFeignClients

public class FeignGzipApplication {

    public static void main(String[] args) {

        SpringApplication.run(FeignGzipApplication.class, args);

    }

}

1.3、编写测试代码：

client接口：

import cn.springcloud.book.feign.config.HelloFeignServiceConfig;

import org.springframework.cloud.openfeign.FeignClient;

import org.springframework.http.ResponseEntity;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

//https://api.caiyunapp.com/v2/TAkhjf8d1nlSlspN/121.6544,25.1552/forecast.json 彩云天气API

@FeignClient(name = "caiyunapp", url = "https://api.caiyunapp.com/v2/TAkhjf8d1nlSlspN/121.6544,25.1552", configuration = HelloFeignServiceConfig.class)

public interface HelloFeignService {

    @RequestMapping(value = "/forecast.json", method = RequestMethod.GET)

    ResponseEntity<byte[]> searchRepo();

}

config配置类：

import feign.Logger;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

@Configuration

public class HelloFeignServiceConfig {

    /**

     *

     * Logger.Level 的具体级别如下：

         NONE：不记录任何信息

         BASIC：仅记录请求方法、URL以及响应状态码和执行时间

         HEADERS：除了记录 BASIC级别的信息外，还会记录请求和响应的头信息

         FULL：记录所有请求与响应的明细，包括头信息、请求体、元数据

     * @return

     */

    @Bean

    Logger.Level feignLoggerLevel() {

        return Logger.Level.FULL;

    }

}

controller类：

import cn.springcloud.book.feign.service.HelloFeignService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.http.ResponseEntity;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class HelloFeignController {

    @Autowired

    private HelloFeignService helloFeignService;

    // 服务消费者对位提供的服务

    @GetMapping(value = "/search")

    public ResponseEntity<byte[]> searchGithubRepoByStr() {

        return helloFeignService.searchRepo();

    }

}

1.4、工程配置文件：

server:

  port: 8011

spring:

  application:

    name: ch4-1-gzip

logging:

     level:

       cn.springcloud.book.feign.service.HelloFeignService: debug

feign:

    compression:

        request:

            enabled: true

            mime-types: text/xml,application/xml,application/json # 配置压缩支持的MIME TYPE

            min-request-size: 2048  # 配置压缩数据大小的下限

        response:

            enabled: true # 配置响应GZIP压缩

2、启动工程

访问 http://localhost:8011/search

大功告成！！！

由于开启GZIP压缩之后，Feign之间的调用通过二进制协议进行传输，返回值需要修改为ResponseEntity<byte[]>才可以正常显示，否则会导致服务之间的调用结果乱码。

###提示：

提示1：SpringCloud Finchley.RC2版本中，开启Feign GZIP压缩时，会出现乱码，具体解决方案见：https://github.com/spring-cloud/spring-cloud-openfeign/issues/33

提示2：SpringCloud Finchley.M9版本中，开启Feign GZIP压缩会报错。具体解决方案见：https://github.com/spring-cloud/spring-cloud-openfeign/issues/14

巴特西

Feign【开启GIZP压缩】

1、搭建gzip-demo工程

2、启动工程

最新文章

热门文章