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SpringCloud学习（二）：消费者订单模块的构建

模块 学习
2023-03-14 22:46:55 时间

一、建module


创建一个普通maven模块


二、修改pom.xml文件


<?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>cloud</artifactId>
        <groupId>com.shang.cloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
 
    <artifactId>cloud-consumer-order80</artifactId>
 
    <dependencies>
        <!--包含了sleuth+zipkin-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zipkin</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
<!--        <dependency>&lt;!&ndash; 引入自己定义的api通用包，可以使用Payment支付Entity &ndash;&gt;-->
<!--            <groupId>com.atguigu.springcloud</groupId>-->
<!--            <artifactId>cloud-api-commons</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-actuator</artifactId>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </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>
    </dependencies>
 
</project>


三、编写yml文件


1. server:
2.   port: 90


其实这里使用80端口会更好，因为http默认访问80端口，这样消费者就不用在访问的时候加上端口号了。但是我的80端口被Nginx占用，来回禁用也挺麻烦，于是就改成了90端口。


四、编写主启动类


package com.shang.cloud;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class OrderMain80 {
    public static void main(String[] args) {
        SpringApplication.run(OrderMain80.class, args);
    }
}


五、编写业务代码


由于消费者只需要调用支付模块的方法，因此只需要entity和controller即可。

entity直接复用支付模块的就行了。


package com.shang.cloud.controller;
 
import com.shang.cloud.entities.CommonResult;
import com.shang.cloud.entities.Payment;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
 
@RestController
@Slf4j
public class OrderController {
 
    public static final String PAYMENT_URL = "http://localhost:8001";
 
    @Autowired
    private RestTemplate restTemplate;
 
    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> create(Payment payment){
        return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment, CommonResult.class);
    }
 
    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id, CommonResult.class);
    }
}


注解配置applicationContext


package com.shang.cloud.config;
 
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
 
@Configuration
public class ApplicationContextConfig {
 
    @Bean
    public RestTemplate getRestTemplate(){
        return new RestTemplate();
    }
}



六、启动测试


b08f5ee8768a421fbdb0b8de27f50fc7.png


可以看到，通过消费者订单模块，我们也查到了内容。


216a2490d05f4c18bfdeaa9f03b879ab.png


0c2b8916f36f4846bb44b6f91cc7ebfd.png


数据也能成功插入 

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