這篇文章主要介紹了SpringCloud分布式微服務(wù)b2b2c電子商務(wù)docker-feign配置的示例分析，具有一定借鑒價(jià)值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓小編帶著大家一起了解一下。
公司主營業(yè)務(wù)：成都做網(wǎng)站、成都網(wǎng)站制作、移動(dòng)網(wǎng)站開發(fā)等業(yè)務(wù)。幫助企業(yè)客戶真正實(shí)現(xiàn)互聯(lián)網(wǎng)宣傳，提高企業(yè)的競爭能力。成都創(chuàng)新互聯(lián)是一支青春激揚(yáng)、勤奮敬業(yè)、活力青春激揚(yáng)、勤奮敬業(yè)、活力澎湃、和諧高效的團(tuán)隊(duì)。公司秉承以“開放、自由、嚴(yán)謹(jǐn)、自律”為核心的企業(yè)文化，感謝他們對(duì)我們的高要求，感謝他們從不同領(lǐng)域給我們帶來的挑戰(zhàn)，讓我們激情的團(tuán)隊(duì)有機(jī)會(huì)用頭腦與智慧不斷的給客戶帶來驚喜。成都創(chuàng)新互聯(lián)推出鹽山免費(fèi)做網(wǎng)站回饋大家。
討論一下feign配置，通過編寫配置類，我們可以自定義feign的日志級(jí)別，日志掃描目錄，可以通過feign調(diào)用服務(wù)在eureka上的調(diào)用信息。
feign聲明接口之后，在代碼中通過@Resource或者@Autowired注入之后即可使用。
@FeignClient標(biāo)簽的常用屬性如下：
name：指定FeignClient的名稱，如果項(xiàng)目使用了Ribbon，name屬性會(huì)作為微服務(wù)的名稱
url: url一般用于調(diào)試，可以手動(dòng)指定@FeignClient調(diào)用的地址
decode404:當(dāng)發(fā)生http 404錯(cuò)誤時(shí)，如果該字段位true，會(huì)調(diào)用decoder進(jìn)行解碼，否則拋出FeignException
configuration: Feign配置類，可以自定義Feign的Encoder、Decoder、LogLevel、Contract
fallback: 定義容錯(cuò)的處理類，當(dāng)調(diào)用遠(yuǎn)程接口失敗或超時(shí)時(shí)，會(huì)調(diào)用對(duì)應(yīng)接口的容錯(cuò)邏輯，fallback指定的類必須實(shí)現(xiàn)@FeignClient標(biāo)記的接口
fallbackFactory: 工廠類，用于生成fallback類示例，通過這個(gè)屬性我們可以實(shí)現(xiàn)每個(gè)接口通用的容錯(cuò)邏輯，減少重復(fù)的代碼
path: 定義當(dāng)前FeignClient的統(tǒng)一前綴
一、創(chuàng)建模塊（microservice-consumer-movie-feign-customizing）
項(xiàng)目結(jié)構(gòu)如下：
二、pom.xml文件
microservice-spring-cloud
com.jacky
1.0-SNAPSHOT
4.0.0
microservice-consumer-movie-feign-customizing
jar
UTF-8
UTF-8
1.8
org.springframework.boot
spring-boot-starter-web
org.springframework.cloud
spring-cloud-starter-eureka
org.springframework.boot
spring-boot-starter-actuator
org.springframework.cloud
spring-cloud-starter-feign
com.spotify
docker-maven-plugin
build-image
install
build
http://192.168.6.130:5678
true
${docker.repostory}/${docker.image.prefix}/${project.artifactId}:${project.version}
java:openjdk-8-jdk-alpine
["java", "-jar", "/${project.build.finalName}.jar"]
/
${project.build.directory}
${project.build.finalName}.jar
三、配置文件
spring:
application:
name: microservice-consumer-movie-feign-customizing
server:
port: 7901
eureka:
client:
healthcheck:
enabled: true
serviceUrl:
defaultZone: http://jacky:admin@peer1:8761/eureka/,http://jacky:admin@peer2:8762/eureka/,http://jacky:admin@peer3:8763/eureka/
instance:
prefer-ip-address: true
#feign日志配置
logging:
level:
com.jacky.cloud.feign.UserFeignClient: DEBUG
# 解決第一次請(qǐng)求報(bào)超時(shí)異常的方案：
# hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds: 5000 #延長超時(shí)時(shí)間
# 或者：
# hystrix.command.default.execution.timeout.enabled: false
# 或者：
feign.hystrix.enabled: false # 索性禁用feign的hystrix支持
# 超時(shí)的issue：https://github.com/spring-cloud/spring-cloud-netflix/issues/768
# 超時(shí)的解決方案： http://stackoverflow.com/questions/27375557/hystrix-command-fails-with-timed-out-and-no-fallback-available
# hystrix配置： https://github.com/Netflix/Hystrix/wiki/Configuration#execution.isolation.thread.timeoutInMilliseconds
四、實(shí)體類User.java
package com.jacky.cloud.entity;
import java.math.BigDecimal;
public class User {
private Long id;
private String username;
private String name;
private Short age;
private BigDecimal balance;
public Long getId() {
return this.id;
}
public void setId(Long id) {
this.id = id;
}
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public Short getAge() {
return this.age;
}
public void setAge(Short age) {
this.age = age;
}
public BigDecimal getBalance() {
return this.balance;
}
public void setBalance(BigDecimal balance) {
this.balance = balance;
}
}五、feign客戶端1（UserFeignClient1.java）
package com.jacky.cloud.feign;
import org.springframework.cloud.netflix.feign.FeignClient;
import com.jacky.cloud.entity.User;
import com.jacky.config.Configuration1;
import feign.Param;
import feign.RequestLine;
@FeignClient(name = "microservice-provider-user", configuration = Configuration1.class)
public interface UserFeignClient1 {
@RequestLine("GET /simple/{id}")
public User findById(@Param("id") Long id);
}六、feign客戶端2（UserFeignClient2.java）
package com.jacky.cloud.feign;
import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import com.jacky.config.Configuration2;
@FeignClient(name = "xxxx", url = "http://localhost:8761/", configuration = Configuration2.class)
public interface UserFeignClient2 {
@RequestMapping(value = "/eureka/apps/{serviceName}")
public String findServiceInfoFromEurekaByServiceName(@PathVariable("serviceName") String serviceName);
}七、feign配置類1（Configuration1.java）
package com.jacky.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import feign.Contract;
import feign.Logger;
@Configuration
public class Configuration1 {
@Bean
public Contract feignContract() {
return new feign.Contract.Default();
}
@Bean
Logger.Level feignLoggerLevel() {
return Logger.Level.FULL; //定義feign日志顯示級(jí)別
}
}八、feign配置類2（Configuration2.java）
package com.jacky.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import feign.auth.BasicAuthRequestInterceptor;
@Configuration
public class Configuration2 {
@Bean
public BasicAuthRequestInterceptor basicAuthRequestInterceptor() {
return new BasicAuthRequestInterceptor("jacky", "admin"); //Eureka添加了安全驗(yàn)證，則需要配置上面的用戶名、密碼
}
}九、MovieController.java
package com.jacky.cloud.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import com.jacky.cloud.entity.User;
import com.jacky.cloud.feign.UserFeignClient2;
import com.jacky.cloud.feign.UserFeignClient1;
@RestController
public class MovieController {
@Autowired
private UserFeignClient1 userFeignClient1;
@Autowired
private UserFeignClient2 userfeignClient2;
/**
* 調(diào)用生產(chǎn)者服務(wù)
* @param id
* @return
*/
@GetMapping("/movie/{id}")
public User findById(@PathVariable Long id) {
return this.userFeignClient1.findById(id);
}
/**
* 獲得服務(wù)在eureka信息
* @param serviceName
* @return
*/
@GetMapping("/{serviceName}")
public String findServiceInfoFromEurekaByServiceName(@PathVariable String serviceName) {
return this.userfeignClient2.findServiceInfoFromEurekaByServiceName(serviceName);
}
}十、啟動(dòng)類ConsumerMovieFeignApplication.java
package com.jacky.cloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
@SpringBootApplication
@EnableEurekaClient
@EnableFeignClients
public class ConsumerMovieFeignApplication {
public static void main(String[] args) {
SpringApplication.run(ConsumerMovieFeignApplication.class, args);
}
}感謝你能夠認(rèn)真閱讀完這篇文章，希望小編分享的“SpringCloud分布式微服務(wù)b2b2c電子商務(wù)docker-feign配置的示例分析”這篇文章對(duì)大家有幫助，同時(shí)也希望大家多多支持創(chuàng)新互聯(lián)，關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道，更多相關(guān)知識(shí)等著你來學(xué)習(xí)!
本文題目：SpringCloud分布式微服務(wù)b2b2c電子商務(wù)docker-feign配置的示例分析
標(biāo)題鏈接：
http://weahome.cn/article/jpdgcc.html
重慶分公司
重慶分公司
