SpringCloud学习之基础环境搭建
作者：互联网
前提：SpringBoot可以离开SpringCloud独立使用开发项目，但是SpringCloud离不开SpringBoot，属于依赖的关系.
所以此处搭建一个基础的SpringBoot 多模块的项目
一： 创建父模块
1.创建一个maven项目，填写groupid和artifactId，并修改packing为pom
2. 添加相应的依赖
<?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.ligong.springcloud</groupId>
<artifactId>microservicecloud</artifactId>
<version>1.0-SNAPSHOT</version>
<modules>
<module>microservicecloud-api</module>
<module>microservicecloud-provider</module>
</modules>
<packaging>pom</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.compiler.source>1.8</project.compiler.source>
<project.compiler.target>1.8</project.compiler.target>
<junit.verion>4.12</junit.verion>
<log4j.version>1.2.17</log4j.version>
<lombok.version>1.6.18</lombok.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Dalston.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.1.3.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.15</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.3</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.verion}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
</project>
二： 创建子模块
1.新建microservicecloud-api子模块
在父工程下右键new->Module 创建一个子模块，这里选择maven/Spring initializr都可以
此处我采用的是maven创建，填写artifactId finish即可
microservicecloud-api的pom文件，注意，打包方式为jar
<?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>microservicecloud</artifactId>
<groupId>com.ligong.springcloud</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<packaging>jar</packaging>
<artifactId>microservicecloud-api</artifactId>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.8</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
</dependencies>
</project>
在api子模块下新建一个entities包，创建一个dept class。
此处采用jpa作为持久层，所以api的pom文件中需要导入相关jpa的依赖
@Data
@Entity
@Table(name = "t_dept")
@NoArgsConstructor
@AllArgsConstructor
@JsonIgnoreProperties(value={"hibernateLazyInitializer","handler", "fieldHandler"})
@Accessors(chain = true)
public class Dept implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer deptNo;
@Column(name = "d_name")
private String deptName;
/**
* 来源于哪个数据库
*/
@Column(name = "db_source")
private String dbSource;
}
2.创建provider子模块，用于对外提供服务。
创建过程与上面类似，就不在赘述
provider的pom文件，注意打包方式为war
<?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>microservicecloud</artifactId>
<groupId>com.ligong.springcloud</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<packaging>war</packaging>
<artifactId>microservicecloud-provider</artifactId>
<dependencies>
<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>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</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>
</dependency>
<!--热部署-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>springloaded</artifactId>
<version>1.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<version>2.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>com.ligong.springcloud</groupId>
<artifactId>microservicecloud-api</artifactId>
<version>1.0-SNAPSHOT</version>
<!--<scope>compile</scope>-->
</dependency>
</dependencies>
</project>
1. 创建DeptRepository
@Repository
public interface DeptRepository extends JpaRepository<Dept,Integer> {
}
2. 创建DeptService
public interface DeptService {
boolean add(Dept dept);
Dept get(Integer id);
List<Dept> list();
}
3. 创建DeptServiceImpl
@Service
@Slf4j
public class DeptServiceImpl implements DeptService {
@Autowired
private DeptRepository deptRepository;
public Dept get(Integer id){
return deptRepository.getOne(id);
}
public boolean add(Dept dept){
try{
deptRepository.save(dept);
}catch (Exception e){
log.error("添加dept 失败!"+e.getMessage());
TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
return false;
}
return true;
}
public List<Dept> list(){
return deptRepository.findAll();
}
}
4. 创建DeptController，(定义rest风格的请求方式)
ps:
@RestController
public class DeptController {
@Autowired
private DeptService deptService;
@PostMapping("/dept")
public boolean add(@RequestBody Dept dept){
return deptService.add(dept);
}
@GetMapping("/dept/{id}")
public Dept get(@PathVariable("id") Integer id){
return deptService.get(id);
}
@GetMapping("/dept/list")
public List<Dept> list(){
return deptService.list();
}
}
5. 定义SpringBoot启动类(如果采用Spring initializr创建的子module可以跳过)
@SpringBootApplication
public class DeptProvider8080App {
public static void main(String[] args) {
SpringApplication.run(DeptProvider8080App.class,args);
}
}
6. 编写application.yml文件
server:
port: 8080 #Server port
spring:
application:
name: microservercloud-dept
datasource:
type: com.alibaba.druid.pool.DruidDataSource # alibaba 数据源
driver-class-name: org.gjt.mm.mysql.Driver # mysql驱动
url: jdbc:mysql://xx.xx.xx.xx:3306/cloudDB01 # jdbc url
username: root
password: root
dbcp2:
min-idle: 5
initial-size: 5
max-total: 5
max-wait-millis: 200
jpa:
hibernate:
ddl-auto: update # create/update table
properties:
hibernate:
format_sql: true #格式化sql
enable_lazy_load_no_trans: true
dislect: org.hibernate.dialect.MySQL5Dialect #定义mysql方言
open-in-view: true
show-sql: true #显示sql
三： 测试环境搭建
运行SpringBoot启动类，查看启动状态
采用postman测试
测试/dept 添加接口，body添加
测试/dept/{id}接口
最后/dept/list查看数据是否添加成功
至此，SpringCloud的基础环境搭建完毕！
标签：SpringCloud,boot,学习,dept,microservicecloud,spring,org,public,搭建 来源： https://www.cnblogs.com/zhanyifan/p/10693869.html