Feign超时 yml文件配置
Feign用法和基本配置
首先说下我的模块结构
首先在test1模块下新建pojo模块
首先在consumer的模块下新建feign调用类
接下来新建provider模块
Feign超时 yml文件配置ribbon:
# #指建立连接后从服务端读取到可用资源所用的时间
ReadTimeOut: 10000
#建立连接所用的时间，适用于网络状况正常的情况下，两端连接所需要的时间
ConnectTimeout: 5000
Feign用法和基本配置
SpringBoot集成Feign在不使用注册中心实现模块之间的调用
今天就来说下怎么使用Fegin在不使用注册中心的情况下进行模块之间的调用。原因是：在项目小的情况下，而且还必须要调用其他模块的接口，那么这个时候就要用fegin了，当然还有其他的方法，但我在这里只说这一种简单的方法。
上代码:
首先说下我的模块结构
test1是根模块用于对子模块maven坐标的版本控制管理其pom.xml如下：
<?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>com.person</groupId>
<artifactId>test1</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
<module>provider</module>
<module>consumer</module>
<module>pojo</module>
</modules>
<!--spring boot 环境 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.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 版本-->
<spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
</properties>
<!--引入Spring Cloud 依赖-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.person</groupId>
<artifactId>pojo</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!--spring boot web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.1.1.RELEASE</version>
</dependency>
<!--feign-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<version>2.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.10</version>
<scope>provided</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
紧接着在test1模块下新建两个模块分别为consumer，provider和pojo，其中consumer使用Feign调用provider模块的接口，pojo模块放实体类
首先在test1模块下新建pojo模块pojo模块的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">
<parent>
<artifactId>test1</artifactId>
<groupId>com.person</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>pojo</artifactId>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
</project>
在pojo模块下新建Goods实体类供其他模块使用：
package com.person.pojo.consumer;
import lombok.*;
import javax.validation.constraints.NotNull;
import java.io.Serializable;
@Setter
@Getter
@AllArgsConstructor
@NoArgsConstructor
@Builder(toBuilder = true)
public class Goods implements Serializable {
private static final long serialVersionUID = 1L;
@NotNull(message = "id不能为空")
private String id;
private String name;
private String price;
private String colour;
}
consumer的yml文件：
server:
port: 8012
consumer的pom.xml如下：
<?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">
<parent>
<artifactId>test1</artifactId>
<groupId>com.person</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>consumer</artifactId>
<dependencies>
<dependency>
<groupId>com.person</groupId>
<artifactId>pojo</artifactId>
</dependency>
<!--feign-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<!--spring boot web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
</project>
首先在consumer的模块下新建feign调用类
package com.person.feign;
import com.person.pojo.consumer.Goods;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
@FeignClient(name = "provider",url = "http://localhost:8011")
@RequestMapping("/person")
public interface GoodsFeignClient {
@GetMapping("/findone/{id}")
public Goods findOnebyId(@PathVariable("id") String id);
}
上面代码所示 url代表想要调用的模块的前缀因为我的provider模块的端口是8011因此http://localhost:8011就是我的provider前缀，下面的请求路径“/person/findone/{id}”指的是我的provider模块接口路径
下面在consumer模块下新建controller方法：
package com.person.controller;
import com.person.feign.GoodsFeignClient;
import com.person.pojo.consumer.Goods;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/order")
public class OrderController {
@Autowired
private GoodsFeignClient goodsFeignClient;
@GetMapping("/findone/{id}")
public Goods findOnebyId(@PathVariable("id") String id) {
return goodsFeignClient.findOnebyId(id);
}
}
接下来新建provider模块
provider的yml文件：
server:
port: 8011
其pom.xml坐标：
<?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">
<parent>
<artifactId>test1</artifactId>
<groupId>com.person</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>provider</artifactId>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>com.person</groupId>
<artifactId>pojo</artifactId>
</dependency>
<!--spring boot web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
</project>
然后在provider 中新建controller：
package com.person.controller;
import com.person.pojo.consumer.Goods;
import com.person.service.GoodsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
/**
* 服务提供方
*/
@RestController
@RequestMapping("/person")
public class GoodsController {
@GetMapping("/findone/{id}")
public Goods findOne(@PathVariable("id") String id) {
return new Goods("1","红苹果","8888","红色");
}
}
这个时候在浏览器里面输入http://localhost:8012/order/findone/12回车
显示的是provider的接口返回的数据，说明feign调用成功。关于feign还有很多很多牛x的用法，若有需要可以在官网或者其他地方搜索，我展示的只是适合新手入门上手。
以上为个人经验，希望能给大家一个参考，也希望大家多多支持易知道(ezd.cc)。
