Spring Cloud Consul使用——配置中心

<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.lynch</groupId>
<artifactId>spring-cloud-consul-config</artifactId>
<version>0.0.1-SNAPSHOT</version> <parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</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> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
<version>1.4.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</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> <build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build></project>

spring:
application:
name: myconsul
cloud:
consul:
host: localhost
port: 8500
config:
enabled: true #false禁用Consul配置，默认true
format: YAML # 表示consul上面文件的格式 有四种 YAML PROPERTIES KEY-VALUE FILES
#data-key: configuration #表示consul上面的KEY值(或者说文件的名字) 默认是data
data-key: data #表示consul上面的KEY值(或者说文件的名字) 默认是data
#prefix设置配置值的基本文件夹
#defaultContext设置所有应用程序使用的文件夹名称
#profileSeparator设置用于使用配置文件在属性源中分隔配置文件名称的分隔符的值
profiles:
active: dev
server:
port: 8081

package com.lynch.config;import org.springframework.boot.context.properties.ConfigurationProperties;@ConfigurationProperties(prefix = "student")
public class StudentConfig {
private String name;
private int age;
private String sex; public String getName() {
return name;
} public void setName(String name) {
this.name = name;
} public int getAge() {
return age;
} public void setAge(int age) {
this.age = age;
} public String getSex() {
return sex;
} public void setSex(String sex) {
this.sex = sex;
} @Override
public String toString() {
return "StudentConfig{" + "name='" + name + '\'' + ", age=" + age + ", sex='" + sex + '\'' + '}';
}
}

package com.lynch.web;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import com.lynch.config.StudentConfig;@RestController
@RequestMapping("/test")
public class StudentController { @Value("${myName}")
private String myName; @Autowired
private StudentConfig studentConfig; @RequestMapping("/myname")
public String testHello() {
System.out.println("my name is : " + myName);
return myName;
} @RequestMapping("/config")
public String testConfig() {
System.out.println(studentConfig.toString());
return studentConfig.toString();
}}

package com.lynch;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import com.lynch.config.StudentConfig;@SpringBootApplication
@EnableDiscoveryClient
@EnableConfigurationProperties({StudentConfig.class})
public class Application { public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}

输入key和value
key：config/myconsul,dev/data
value：
myName: jack
student:
name: jack
age: 18
sex: 男

@Value("${myName}")
private String myName;