Spring Cloud SpringCloud Self-paced Course 3 SpringCloud Data JPA + PostgreSQL

Example code: https://github.com/michaelzhanghe/springcloud-03-licensingservice.git

------------------------------Windows10--------------------------------

<?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.cloudlearning</groupId>
	<artifactId>springcloud-03-licensingservice</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>springcloud-03-licensingservice</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.1.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.M9</spring-cloud.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-config</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-config-client</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-rsa</artifactId>
		</dependency>

		<dependency>
			<groupId>com.h2database</groupId>
			<artifactId>h2</artifactId>
			<version>1.4.196</version>
		</dependency>
		<dependency>
			<groupId>postgresql</groupId>
			<artifactId>postgresql</artifactId>
			<version>9.1-901.jdbc4</version>
		</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>

	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
	</repositories>

</project>

schema.sql: SQL statement to create database table

DROP TABLE IF EXISTS licenses;

CREATE TABLE licenses (
  license_id        VARCHAR(100) PRIMARY KEY NOT NULL,
  organization_id   TEXT NOT NULL,
  license_type      TEXT NOT NULL,
  product_name      TEXT NOT NULL,
  license_max       INT   NOT NULL,
  license_allocated INT,
  comment           VARCHAR(100));


INSERT INTO licenses (license_id,  organization_id, license_type, product_name, license_max, license_allocated)
VALUES ('f3831f8c-c338-4ebe-a82a-e2fc1d1ff78a', 'e254f8c-c442-4ebe-a82a-e2fc1d1ff78a', 'user','customer-crm-co', 100,5);
INSERT INTO licenses (license_id,  organization_id, license_type, product_name, license_max, license_allocated)
VALUES ('t9876f8c-c338-4abc-zf6a-ttt1', 'e254f8c-c442-4ebe-a82a-e2fc1d1ff78a', 'user','suitability-plus', 200,189);
INSERT INTO licenses (license_id,  organization_id, license_type, product_name, license_max, license_allocated)
VALUES ('38777179-7094-4200-9d61-edb101c6ea84', '442adb6e-fa58-47f3-9ca2-ed1fecdfe86c', 'user','HR-PowerSuite', 100,4);
INSERT INTO licenses (license_id,  organization_id, license_type, product_name, license_max, license_allocated)
VALUES ('08dbe05-606e-4dad-9d33-90ef10e334f9', '442adb6e-fa58-47f3-9ca2-ed1fecdfe86c', 'core-prod','WildCat Application Gateway', 16,16);

Access the 8888 port exposed by the local configuration server and call the configuration file of the default environment

The naming convention of the configuration file on the Git repos is to match the configuration in bootstrap.yml:

${spring.application.name}-${spring.profiles.active}.yml

create controller

package com.cloudlearning.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.cloudlearning.config.ServiceConfig;

import org.springframework.web.bind.annotation.GetMapping;


@RestController
public class LicenseServiceController {

    @Autowired
    private ServiceConfig serviceConfig;

    @GetMapping(value="/licensingservice")
    public String getExampleProperty() {
        return serviceConfig.getExampleProperty();
    }

}

create service

package com.cloudlearning.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class ServiceConfig{

  @Value("${example.property}")
  private String exampleProperty;

  public String getExampleProperty(){
    return exampleProperty;
  }
}

When the browser accesses the URI defined in the controller: /licensingservice, it will return the value of example.property "I AM IN THE DEFAULT" in the default environment springcloud-03-licensingservice.yml on Git

test:

1. Start the configuration server: springcloud-02-confsrv

From the log file, you can see the springcloud-03-licensingservice.yml corresponding to the call

2018-04-18 11:48:50.639  INFO 4608 --- [nio-8888-exec-3] o.s.c.c.s.e.NativeEnvironmentRepository  : Adding property source: file:/C:/Users/Administrator/AppData/Local/Temp/config-repo-8073690710026718888/licensingservice/springcloud-03-licensingservice.yml

2. 启动licensingservice： springcloud-03-licensingservice