add config server

README.md

@@ -29,11 +29,24 @@ springboot与spring cloud兼容版本
 
 ### 问题
 
-1.Eureka控制台出现
+1. Eureka控制台出现
     EMERGENCY! EUREKA MAY BE INCORRECTLY CLAIMING INSTANCES ARE UP WHEN THEY'RE NOT. RENEWALS ARE LESSER THAN THRESHOLD AND HENCE THE INSTANCES ARE NOT BEING EXPIRED JUST TO BE SAFE.
 
 说明Eureka已经进入了保护模式。
 
+2. @value 如果配置文件中没有这个配置项且没有指定默认值,则会报错:
+
+   Could not resolve placeholder 'xxx' in value "${aaa.bbb.ccc}"
+
+   @value指定默认的方法
+
+   ```
+   @Value("${aaa.bbb.ccc:DefaultValue}")
+   ```
+
+3. docker 安装ELK(https://www.jianshu.com/p/f4812c21d6a8)
+
 ### 参考
 1. https://windmt.com/2018/04/14/spring-cloud-1-services-governance/
+2. https://blog.csdn.net/libertine1993/article/details/80765886
 

pom.xml

@@ -17,6 +17,8 @@
         <spring.cloud.version>Greenwich.RELEASE</spring.cloud.version>
         <java.version>1.8</java.version>
         <lombok.version>1.18.8</lombok.version>
+        <encoding.reporting>UTF-8</encoding.reporting>
+        <java.encoding>UTF-8</java.encoding>
     </properties>
 
     <dependencyManagement>
@@ -53,6 +55,21 @@
                 <artifactId>spring-boot-maven-plugin</artifactId>
                 <version>${spring.boot.version}</version>
             </plugin>
+
+
+            <!--The Compiler Plugin is used to compile the sources of your project.-->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.7.0</version>
+                <configuration>
+                    <compilerVersion>${java.version}</compilerVersion>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                    <encoding>${java.encoding}</encoding>
+                </configuration>
+            </plugin>
+
         </plugins>
     </build>
 </project>

spring-cloud-hello-world/hello-config-server/pom.xml

@@ -17,6 +17,10 @@
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-config-server</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>

spring-cloud-hello-world/hello-config-server/src/main/java/com/duanledexian/spring/cloud/config/SpringConfigApplication.java → spring-cloud-hello-world/hello-config-server/src/main/java/com/duanledexian/spring/cloud/config/SpringConfigServiceApplication.java

@@ -13,7 +13,7 @@ import org.springframework.cloud.config.server.EnableConfigServer;
  */
 @SpringBootApplication
 @EnableConfigServer
-public class SpringConfigApplication {
+public class SpringConfigServiceApplication {
 
     /**
      * The entry point of application.
@@ -21,6 +21,6 @@ public class SpringConfigApplication {
      * @param args the input arguments
      */
     public static void main(String[] args) {
-        SpringApplication.run(SpringConfigApplication.class, args);
+        SpringApplication.run(SpringConfigServiceApplication.class, args);
     }
 }

spring-cloud-hello-world/hello-config-server/src/main/resources/application.yml

 server:
   # 服务器端口
   port: 9300
+eureka:
+  client:
+    service-url:
+      defaultZone: http://localhost:9000/eureka/
 
 spring:
   application:
@@ -10,7 +14,7 @@ spring:
       server:
         git:
 #          配置git仓库的地址
-          uri: http://platform.kuopu.net:9999/gitlab/duanledexianxianxian/spring-cloud-learn
+          uri: http://platform.kuopu.net:9999/gitlab/duanledexianxianxian/spring-cloud-learn.git
 #          git仓库地址下的相对地址，可以配置多个，用,分割。
           search-paths: spring-cloud-hello-world/config-repo
           skip-ssl-validation: false

spring-cloud-hello-world/order-service/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>spring-cloud-hello-world</artifactId>
+        <groupId>com.duanledexian.spring.cloud</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>order-service</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-config-client</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
+    </dependencies>
+</project>

spring-cloud-hello-world/order-service/src/main/java/com/duanledexian/spring/cloud/order/SpringOrderServiceApplication.java

+package com.duanledexian.spring.cloud.order;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+
+/**
+ * 服务提供方
+ *
+ * @author Administrator
+ */
+@SpringBootApplication
+@EnableEurekaClient
+public class SpringOrderServiceApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringOrderServiceApplication.class, args);
+    }
+}

spring-cloud-hello-world/order-service/src/main/java/com/duanledexian/spring/cloud/order/controller/HomeController.java

+package com.duanledexian.spring.cloud.order.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author Administrator
+ * <p>需要给加载变量的类上面加载 @RefreshScope，在客户端执行 /actuator/refresh 的时候就会更新此类下面的变量值。</p>
+ */
+@RestController
+@RequestMapping("/api/v1")
+@RefreshScope
+@Slf4j
+public class HomeController {
+
+    @Value("${hello.name:world}")
+    private String name;
+
+    @GetMapping("/sayHello")
+    public String sayHello() {
+        return "order-service hello " + name;
+    }
+
+}

spring-cloud-hello-world/order-service/src/main/resources/application.yml

+server:
+  # 服务器端口
+  port: 9204
+
+hello:
+  name: "order application default name"
+
+spring:
+  application:
+    name: order-service
+management:
+  endpoints:
+    web:
+      exposure:
+        include: refresh,info

spring-cloud-hello-world/order-service/src/main/resources/bootstrap.yml

+spring:
+  cloud:
+    config:
+      #      配置中心的具体地址，即 config-server
+      #      uri: http://localhost:9300
+      #      对应 {application} 部分
+      name: order-service
+      #      对应 {profile} 部分
+      profile: dev
+      #      对应 {label} 部分，即 Git 的分支。如果配置中心使用的是本地存储，则该参数无用
+      label: master
+      discovery:
+        enabled: true
+        service-id: config-server
+
+eureka:
+  client:
+    service-url:
+      defaultZone: http://localhost:9000/eureka/

spring-cloud-hello-world/pom.xml

@@ -18,6 +18,8 @@
         <module>hello-consumer-ribbon</module>
         <module>hello-consumer-feign</module>
         <module>hello-config-server</module>
+        <module>user-service</module>
+        <module>order-service</module>
     </modules>
 
     <dependencies>

spring-cloud-hello-world/user-service/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>spring-cloud-hello-world</artifactId>
+        <groupId>com.duanledexian.spring.cloud</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>user-service</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-config-client</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

spring-cloud-hello-world/user-service/src/main/java/com/duanledexian/spring/cloud/user/SpringUserServiceApplication.java

+package com.duanledexian.spring.cloud.user;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * 服务提供方
+ *
+ * @author Administrator
+ */
+@SpringBootApplication
+public class SpringUserServiceApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringUserServiceApplication.class, args);
+    }
+}

spring-cloud-hello-world/user-service/src/main/java/com/duanledexian/spring/cloud/user/controller/HomeController.java

+package com.duanledexian.spring.cloud.user.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author Administrator
+ * <p>需要给加载变量的类上面加载 @RefreshScope，在客户端执行 /actuator/refresh 的时候就会更新此类下面的变量值。</p>
+ */
+@RestController
+@RequestMapping("/api/v1")
+@RefreshScope
+@Slf4j
+public class HomeController {
+
+    @Value("${hello.name:world}")
+    private String name;
+
+    @GetMapping("/sayHello")
+    public String sayHello() {
+        return "hello " + name;
+    }
+
+}

spring-cloud-hello-world/user-service/src/main/resources/application.yml

+server:
+  # 服务器端口
+  port: 9203
+
+hello:
+  name: "application default name"
+
+spring:
+  application:
+    name: user-service
+management:
+  endpoints:
+    web:
+      exposure:
+        include: refresh

spring-cloud-hello-world/user-service/src/main/resources/bootstrap.yml

+spring:
+  cloud:
+    config:
+      #      配置中心的具体地址，即 config-server
+      #      uri: http://localhost:9300
+      #      对应 {application} 部分
+      name: user-service
+      #      对应 {profile} 部分
+      profile: dev
+      #      对应 {label} 部分，即 Git 的分支。如果配置中心使用的是本地存储，则该参数无用
+      label: master
+      discovery:
+        enabled: true
+        service-id: config-server
+
+eureka:
+  client:
+    service-url:
+      defaultZone: http://localhost:9000/eureka/