springboot整合dubbo注解方式
工程结构:
主pom
<?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> <packaging>pom</packaging> <modules> <module>service-privder</module> <module>service-consumer</module> <module>service-common</module> </modules> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.cxy</groupId> <artifactId>springboot-dubbo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot-dubbo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--引入dubbo start依赖--> <dependency> <groupId>com.alibaba.spring.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version>2.0.0</version> </dependency> <dependency> <groupId>com.101tec</groupId> <artifactId>zkclient</artifactId> <version>0.10</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
注意事项:引入图中整个dubbo依赖时候要加入这个zookeeper的依赖,不然会报calssnotfound错误:
common代码:
1 pom
<?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>springboot-dubbo</artifactId> <groupId>com.cxy</groupId> <version>0.0.1-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>service-common</artifactId> </project>
2 product
package com.cxy.bean; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import java.io.Serializable; import java.util.Date; @Data @AllArgsConstructor @NoArgsConstructor public class Product implements Serializable { // 产品序列号 private int id; // 产品名称 private String name; // 是否贵重品 private Boolean isPrecious; //生产日期 private Date dateInProduced; //产品价格 private float price; }
api
package com.cxy.api; import com.cxy.bean.Product; import java.util.List; public interface IProductService { Product queryProductById(int id); List<Product> queryAllProducts(); }
privoder代码
1 pom
<?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>springboot-dubbo</artifactId> <groupId>com.cxy</groupId> <version>0.0.1-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>service-privder</artifactId> <dependencies> <dependency> <groupId>com.cxy</groupId> <artifactId>service-common</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> </dependencies> </project>
2 productservice
package com.cxy.service; import com.alibaba.dubbo.config.annotation.Service; import com.cxy.api.IProductService; import com.cxy.bean.Product; import org.springframework.stereotype.Component; import java.util.ArrayList; import java.util.Date; import java.util.List; /** * @author * @description : 产品提供接口实现类 */ @Service(timeout = 5000,version="1.0.0",interfaceClass = IProductService.class) @Component public class ProductService implements IProductService { private static List<Product> productList = new ArrayList<>(); static { for (int i = 0; i < 20; i++) { productList.add(new Product(i, "产品" + i, i / 2 == 0, new Date(), 66.66f * i)); } } public Product queryProductById(int id) { for (Product product : productList) { if (product.getId() == id) { return product; } } return null; } public List<Product> queryAllProducts() { List<Product> myProductList = new ArrayList<>(); myProductList.add(new Product(1,"洗衣机",true,new Date(),66.66f)); myProductList.add(new Product(2,"洗衣机",true,new Date(),66.66f)); return myProductList; } }
3 启动类:
package com.cxy; import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @EnableDubbo //开启dubbo的注解支持 public class BootDubboProviderApplication { public static void main(String[] args) { SpringApplication.run(BootDubboProviderApplication.class, args); } }
4 yml:
dubbo: application: name: boot-duboo-provider # 指定注册协议和注册地址 dubbo推荐使用zookeeper作为注册中心,并且在start依赖中引入了zookeeper的java客户端Curator registry: protocol: zookeeper address: 127.0.0.1:2181 protocol.name: dubbo
consumer代码
1 pom
<?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>springboot-dubbo</artifactId> <groupId>com.cxy</groupId> <version>0.0.1-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>service-consumer</artifactId> <dependencies> <dependency> <groupId>com.cxy</groupId> <artifactId>service-common</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> </dependencies> </project>
2 controller
package com.cxy.controller; import com.alibaba.dubbo.config.annotation.Reference; import com.cxy.api.IProductService; import com.cxy.bean.Product; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import java.util.List; @Controller @RequestMapping("sell") public class SellController { // dubbo远程引用注解 @Reference(version = "1.0.0") private IProductService productService; @RequestMapping public String productList(Model model) { List<Product> products = productService.queryAllProducts(); model.addAttribute("products", products); return "products"; } @RequestMapping("product/{id}") public String productDetail(@PathVariable int id, Model model) { Product product = productService.queryProductById(id); model.addAttribute("product", product); return "product"; } }
3 启动类:
package com.cxy; import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @EnableDubbo //开启dubbo的注解支持 public class BootDubboConsumerApplication { public static void main(String[] args) { SpringApplication.run(BootDubboConsumerApplication.class, args); } }
4 yml:
dubbo: application: name: boot-duboo-provider # 指定注册协议和注册地址 dubbo推荐使用zookeeper作为注册中心,并且在start依赖中引入了zookeeper的java客户端Curator registry: protocol: zookeeper address: 127.0.0.1:2181 protocol.name: dubbo # 关闭所有服务的启动时检查 (没有提供者时报错)视实际情况设置 consumer: check: false server: port: 8090
5 freemark模板文件:
<!doctype html> <html lang="en"> <head> <title>产品列表</title> </head> <body> <h3>产品列表:点击查看详情</h3> <ul> <#list products as product> <li> <a href="sell/product/${product.id}">${product.name}</a> </li> </#list> </ul> </body> </html>
<!doctype html> <html lang="en"> <head> <title>产品详情</title> </head> <body> <ul> <li>产品名称:${product.name}</li> <li>产品序列号:${product.id}</li> <li>是否贵重品:${product.isPrecious?string('是','否')}</li> <li>生产日期: ${product.dateInProduced?string("yyyy-MM-dd HH:mm:ss")}</li> <li>产品价格:${product.price}</li> </ul> </body> </html>
点击两个启动类:
访问:
笔记转移,由于在有道云的笔记转移,写的时间可能有点久,如果有错误的地方,请指正