springCloud alibaba 项目搭建代码
时间: 2023-09-22 12:08:30 浏览: 164
好的,以下是一个基本的 Spring Cloud Alibaba 项目搭建代码:
1. 创建 Spring Boot 项目
使用 Spring Initializr 创建一个 Spring Boot 项目,选择相应的依赖和 Spring Boot 版本。
2. 添加 Spring Cloud Alibaba 的依赖
在 pom.xml 文件中添加 Spring Cloud Alibaba 的依赖:
```xml
<!-- Spring Cloud Alibaba Core -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>2.2.1.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- Nacos Config -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<!-- Nacos Discovery -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<!-- Sentinel -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
</dependency>
<!-- Seata -->
<dependency>
<groupId>io.seata</groupId>
<artifactId>seata-all</artifactId>
<version>1.3.0</version>
</dependency>
```
3. 配置 Nacos 注册中心
在 application.properties 或 application.yml 文件中添加 Nacos 注册中心的配置:
```yaml
spring.application.name=spring-cloud-alibaba-demo
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
```
4. 配置 Sentinel 熔断降级
在 application.properties 或 application.yml 文件中添加 Sentinel 熔断降级的配置:
```yaml
spring.cloud.sentinel.transport.dashboard=localhost:8080
```
5. 配置 Seata 分布式事务
在 application.properties 或 application.yml 文件中添加 Seata 分布式事务的配置:
```yaml
spring.cloud.alibaba.seata.tx-service-group=my_group
spring.cloud.alibaba.seata.tx-service-mode=AT
spring.cloud.alibaba.seata.root-config=nacos:127.0.0.1:8848
```
6. 编写业务代码
根据自己的业务需求编写业务代码,并在代码中使用 Spring Cloud Alibaba 的组件,例如:
```java
@RestController
public class HelloController {
@Autowired
private DiscoveryClient discoveryClient;
@GetMapping("/hello")
public String hello() {
List<String> services = discoveryClient.getServices();
return "Hello, " + services;
}
}
```
以上就是一个基本的 Spring Cloud Alibaba 项目搭建代码。当然,根据具体的需求,还需要进行相应的调整。
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