1. Create a parent project: packaged in the form of the parent project is pom, delete the rest unrelated files
Modify the contents of the parent project's pom files are as follows:
<?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.offcn</groupId>
<artifactId>microservice_cloud_01</artifactId>
<version>1.0-SNAPSHOT</version>
<!--手动指定 pom-->
<packaging>pom</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<junit.version>4.12</junit.version>
<spring-cloud.version>Finchley.SR2</spring-cloud.version>
</properties>
<!--依赖声明-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.RELEASE</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>
2. Create a sub-project Eureka01
Add rely ereka of service daunt
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
Add a application.yml profile, and configure the relevant content (note that the configuration file written specification)
# Built-in tomcat service start listening port number
Server:
Port: 6001
#EurekaServer configuration
Eureka:
instance:
hostname: eureka6001.com
Client:
the Register-with-Eureka: false # This EurekaServer not registered to other registries
fetch-registry: false # server is not pulling information from other centers of
Service-url:
defaultzone: http://eureka6002.com:6002/eureka # registry access address
Creating a startup class
@SpringBootApplication
@EnableEurekaServer
public class AppStart {
public static void main(String[] args) {
SpringApplication.run(AppStart.class, args);
}
}
The equivalent of more than three steps to create a server ereka
3. In order to solve the problem of users accessing too much cause the collapse of the server appear to build a cluster
Step consistent with the above steps HTTP: // localhost: $ { the server.port } / Eureka is a generally perform their url server, multiple servers like time as the above, points to another server http://eureka6002.com : 6002 / eureka
4. simulator into which the server
Create a sub-class project as a public entity, here only we need to create the corresponding database table and the corresponding entity class can, and packaged into a local warehouse
5. Create a sub-project, to achieve a simple function check once excision
Increased reliance parent project
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.12</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.13</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
(1) introducing specific dependency, where the need to use particular entity class, the entity class need to rely incorporated herein
<dependencies>
<dependency>
<groupId>com.offcn</groupId>
<artifactId>microservice_cloud_02_api</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.12</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) Create and set up a profile application.yml
Server:
Port: 8001
MyBatis:
config-LOCATION: CLASSPATH: MyBatis / mybatis.cfg.xml # MyBatis profile path where
type-aliases-package: com.offcn.springcloud.entities # Entity alias classes where all packet
mapper-locations: classpath:. mybatis / mapper / ** / * xml # mapper mapping file
the Spring:
the Application:
name: microService-Product # this is very important, which call each other after the service and between services are generally based on the name
the DataSource:
of the type : com.alibaba.druid.pool.DruidDataSource # type of the current source operand data
driver-class-name: com.mysql.jdbc.Driver # mysql driver package
url: jdbc: mysql: //127.0.0.1: 3306 / springboot serverTimezone? = GMT% 2B8 # name database
username: the root
password: 111111
dbcp2:
min-IDLE: database connection pool. 5 # minimum number of connections is maintained
initial-size: 5 # initialization connections
max-total: 5 # maximum number of connections
max-wait-millis: 150 # wait a maximum connection timeout acquired
#EurekaServer configuration
Eureka:
Client:
Register Eureka-with-: This EurekaServer to true # is not registered to other registries
fetch-registry: true # do not pull the server information from other centers Center
Service-url:
defaultzone: http://eureka6002.com:6002/eureka,http://eureka6001.com:6001/ eureka # registry access address
(3) Create mapper layer, service layer, controller layer to achieve a simple function CRUD
Here mapper mapping file in the resources directory
mybatis global configuration file is also the same resources directory
(4) Create a startup class
@SpringBootApplication
@MapperScan("com.offcn.springcloud.mapper")
@EnableEurekaClient
public class SpringCloudApplication {
public static void main(String[] args) {
SpringApplication.run(SpringCloudApplication.class,args);
}
}
Above is a small entry eureka discovery registration implemented