orderServer
OrderController.java
package com.example.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("order")
public class OrderController {
@Value("${server.port}")
private String serverPort;
@Autowired
private ProductClient productClient;
@GetMapping("save")
public String save(){
Integer proId = 9;
String productResult = productClient.getProductById(proId);
System.out.println("在订单中 要有商品的信息 proId = "+proId + productResult);
return "订单服务"+serverPort+"正在下订单";
}
}
ProductClient.java
package com.example.controller;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
@FeignClient("productServer")
public interface ProductClient {
@GetMapping("product/{proId}")
public String getProductById(@PathVariable("proId") Integer proId);
}
OrderServerApplication.java
package com.example;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class OrderServerApplication {
public static void main(String[] args) {
SpringApplication.run(OrderServerApplication.class, args);
}
}
ServletInitializer.java
package com.example;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
public class ServletInitializer extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(OrderServerApplication.class);
}
}
application.yaml
server:
port: 9001
spring:
application:
name: order_server
cloud:
nacos:
server-addr: localhost:8848
pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example</groupId>
<artifactId>springCloudAlibaba</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.example</groupId>
<artifactId>orderServer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>orderServer</name>
<description>orderServer</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- 内置了 LoadBalancer 负载均衡器-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-loadbalancer</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</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-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
productServer
ProductController.java
package com.example.controller;
import com.example.entity.Product;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("product")
public class ProductController {
@Value("${server.port}")
private Integer serverPort;
@GetMapping("/{proId}")
public Product getById(@PathVariable("proId") Integer proId){
Product product = new Product(proId,"保温杯",69.9F,"images/cup.png");
System.out.println("商品服务"+serverPort+"正在查询商品:"+proId);
return product;
}
}
Product.java
package com.example.entity;
public class Product {
private Integer productId;
private String producutName;
private Float producutPrice;
private String producutImg;
public Product(){}
public Product(Integer productId, String producutName, Float producutPrice, String producutImg) {
this.productId = productId;
this.producutName = producutName;
this.producutPrice = producutPrice;
this.producutImg = producutImg;
}
public Integer getProductId() {
return productId;
}
public void setProductId(Integer productId) {
this.productId = productId;
}
public String getProducutName() {
return producutName;
}
public void setProducutName(String producutName) {
this.producutName = producutName;
}
public Float getProducutPrice() {
return producutPrice;
}
public void setProducutPrice(Float producutPrice) {
this.producutPrice = producutPrice;
}
public String getProducutImg() {
return producutImg;
}
public void setProducutImg(String producutImg) {
this.producutImg = producutImg;
}
@Override
public String toString() {
return "Product{" +
"productId=" + productId +
", producutName='" + producutName + '\'' +
", producutPrice=" + producutPrice +
", producutImg='" + producutImg + '\'' +
'}';
}
}
ProductServerApplication.java
package com.example;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@SpringBootApplication
@EnableDiscoveryClient
public class ProductServerApplication {
public static void main(String[] args) {
SpringApplication.run(ProductServerApplication.class, args);
}
}
ServletInitializer.java
package com.example;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
public class ServletInitializer extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(ProductServerApplication.class);
}
}
application.yaml
server:
port: 7001
spring:
application:
name: productServer
cloud:
nacos:
server-addr: localhost:8848
pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example</groupId>
<artifactId>springCloudAlibaba</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.example</groupId>
<artifactId>productServer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>productServer</name>
<description>productServer</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</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-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.6</version>
<relativePath/>
</parent>
<groupId>com.example</groupId>
<artifactId>springCloudAlibaba</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springCloudAlibaba</name>
<description>springCloudAlibaba</description>
<modules>
<module>orderServer</module>
</modules>
<packaging>pom</packaging>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2021.0.4</spring-cloud.version>
<spring-cloud-alibaba.version>2021.0.4.0</spring-cloud-alibaba.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba.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>
</project>