“OpenFeign 无参接口调用”的版本间的差异

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       defaultZone: http://localhost:8761/eureka/
 
       defaultZone: http://localhost:8761/eureka/
 
</syntaxhighlight>
 
</syntaxhighlight>
 +
 +
=== ServiceDemoFeign.java ===
 +
<syntaxhighlight lang="java">
 +
import org.springframework.cloud.openfeign.FeignClient;
 +
import org.springframework.web.bind.annotation.RequestMapping;
 +
 +
@FeignClient("MYPROJECT")
 +
public interface ServiceDemoFeign {
 +
 +
    /**
 +
    * 方法要求：
 +
    *      返回值：要对应
 +
    *      方法名：随意
 +
    *      参数：要对应
 +
    *  方法上添加 SpringMVC 注解
 +
    */
 +
    @RequestMapping("/demo")
 +
    String suiyi();
 +
 +
}
 +
</syntaxhighlight>FeignClient 括号里的参数值就是要调用的目标接口在 Eureka 中注册的 application name
 +
[[文件:Feign 通过 application name 进行接口调用.png|无|缩略图|1198x1198像素]]

2023年3月28日 (二) 02:40的版本

https://www.bilibili.com/video/BV1My4y1W7vy/?p=3

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>io.github.jihch</groupId>
    <artifactId>feign-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.4.RELEASE</version>
    </parent>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <spring-cloud.version>Hoxton.SR8</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <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>

</project>


application.yml

spring:
  application:
    name: feign-demo
server:
  port: 8088
  
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/

ServiceDemoFeign.java

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;

@FeignClient("MYPROJECT")
public interface ServiceDemoFeign {

    /**
     * 方法要求：
     *      返回值：要对应
     *      方法名：随意
     *      参数：要对应
     *  方法上添加 SpringMVC 注解
     */
    @RequestMapping("/demo")
    String suiyi();

}

FeignClient 括号里的参数值就是要调用的目标接口在 Eureka 中注册的 application name

Feign 通过 application name 进行接口调用.png
取自“https://www.jihongchang.top/index.php?title=OpenFeign_无参接口调用&oldid=6651”