三，创建订单微服务消费者第三章

zyu67

已于 2023-08-13 21:02:09 修改

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文章标签：微服务架构云原生

于 2023-07-23 01:38:20 首次发布

本文链接：https://blog.youkuaiyun.com/zyu67/article/details/131875204

版权

文章介绍了如何在SpringBoot项目中添加依赖，配置yml文件，创建启动类，定义实体类和响应结果Bean。此外，还展示了如何将RestTemplate注册到Spring中，以及编写控制器进行HTTP请求操作。在支付提供者端，文章提及了保存支付信息的处理逻辑及异常处理。

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4.3 修改pom添加依赖

 <dependencies>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--监控-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <!--热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!--测试-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>

    </dependencies>

4.4编写yml文件

server:
  port: 80

spring:
  application:
    name:springcloud-consumer-order-service

4.5编写启动类


@SpringBootApplication
public class OrderApplication {
    public static void main(String[] args) {
        SpringApplication.run(OrderApplication.class,args);
    }
}

4.6建立实体

package cn.bdqn.domain;

import java.io.Serializable;

public class Payment implements Serializable {
    private Integer id;
    private String  flowNumber;

    public void setId(Integer id) {
        this.id = id;
    }

    public void setFlowNumber(String flowNumber) {
        this.flowNumber = flowNumber;
    }

    public Integer getId() {
        return id;
    }

    public String getFlowNumber() {
        return flowNumber;
    }
}

4.7编写响应结果的Bean

package cn.bdqn.bean;

public class ResponseResult <T> {
    //响应的编码
    private Integer code;
    
    //响应给前段用户的消息提示
    private String message;
    //响应的数据
    private T data;

    public ResponseResult() {
    }

    public ResponseResult(Integer code, String message, T data) {
        this.code = code;
        this.message = message;
        this.data = data;
    }

    public Integer getCode() {
        return code;
    }

    public String getMessage() {
        return message;
    }

    public T getData() {
        return data;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public void setData(T data) {
        this.data = data;
    }
}

4.8 RestTemplate注册到spring


@Configuration
public class ApplicationContextConfig {

    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }
}

4.9编写OrderApplication控制器

public class OrderController {

    private static final String PAYMENT_URL="http://localhost:8001";

    @Autowired
    private RestTemplate restTemplate;

    //根据id查询
    @GetMapping("/consumer/payment/get/{id}")
    public ResponseResult queryById(@PathVariable("id") Integer id){
            ResponseResult rs =restTemplate.getForObject(PAYMENT_URL+"/payment/id"+id,ResponseResult.class);
            return rs;
    }
    //创建订单
    @GetMapping("/consumer/payment/save")
    public ResponseResult save(Payment payment){
        ResponseResult rs =restTemplate.postForObject(PAYMENT_URL+"/payment/save", payment,ResponseResult.class);
        return  rs;
    }

4.11问题
因为

支付提供者端的代码如下

  @PostMapping("/payment/save")
  public ResponseResult save(@RequestBody Payment payment){
      try {
          paymentService.save(payment);
          return new ResponseResult(200,"成功",null);
      }catch (Exception e){
          e.printStackTrace();
          return new ResponseResult(500,"失败",null);
      }
  }