小知识:
常用的创建微服务模块的套路
1:创建Module
2:修改POM配置文件
3:编写yml配置文件
4:编写启动的主类
5:编写业务类
这个支付模块的构建只是说的一种场景,而不是真的对接支付接口,只是走一个微服务,服务之间的调用流程
右键新建Module
1:选择Maven
2:选择JDK8
3:点击next,不选择模板
修改模块名称,为了方便直接携带端口
点击Finish
<?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>springcloud</artifactId>
<groupId>com.dance</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>cloud-provider-payment8001</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<!--包含了sleuth+zipkin-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
<!--eureka-client-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</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.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<!--mysql-connector-java-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--jdbc-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</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>
server:
port: 8001
spring:
application:
name: cloud-payment-service
datasource:
type: com.alibaba.druid.pool.DruidDataSource # 当前数据源操作类型
driver-class-name: org.gjt.mm.mysql.Driver # mysql驱动包
url: jdbc:mysql://localhost:3306/my?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: 123445
mybatis:
mapperLocations: classpath:mapper/*.xml
type-aliases-package: com.dance.springcloud.entities # 所有Entity别名类所在包
在这里可以看到连接了MySQL 并且有mybatis的配置
先创建配置对应的别名包,再创建xml存放的mapper包
因为连接了mysql,所以我们需要创建对应名称的数据库和之后需要使用的表
有数据库的小伙伴可以直接创建,没有的,我在这里推荐一个好用的mysql工具
那就是xmapp,可以通过面板开启和关闭mysql
然后通过Navicat连接mysql,右击新建数据库
CREATE TABLE `payment`(
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'ID',
`serial` varchar(200) DEFAULT '',
PRIMARY KEY (id)
)ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4
package com.dance.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class PaymentMain001 {
public static void main(String[] args) {
SpringApplication.run(PaymentMain001.class, args);
}
}
至于包名的话,大家看代码吧,如果不想自己写的话,我会在最后上传自己的码云地址的,有喜欢的小伙伴可以自己去下载
package com.dance.springcloud.entities;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {
private Long id;
private String serial;
}
package com.dance.springcloud.common;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class CommonResult<T>{
private Integer code;
private String message;
private T data;
public CommonResult(Integer code, String message){
this(code, message, null);
}
}
package com.dance.springcloud.dao;
import com.dance.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
/**
*/
@Mapper
//@Repository不用Spring的
public interface PaymentDao
{
public int create(Payment payment);
public Payment getPaymentById(@Param("id") Long id);
}
MyBatis映射文件PaymentMapper.xml,路径:resources/mapper/PaymentMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.dance.springcloud.dao.PaymentDao">
<insert id="create" parameterType="Payment" useGeneratedKeys="true" keyProperty="id">
insert into payment(serial) values(#{serial});
</insert>
<resultMap id="BaseResultMap" type="com.dance.springcloud.entities.Payment">
<id column="id" property="id" jdbcType="BIGINT"/>
<id column="serial" property="serial" jdbcType="VARCHAR"/>
</resultMap>
<select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
select * from payment where id=#{id};
</select>
</mapper>
package com.dance.springcloud.service;
import com.dance.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Param;
/**
*/
public interface PaymentService
{
public int create(Payment payment);
public Payment getPaymentById(@Param("id") Long id);
}
package com.dance.springcloud.service.impl;
import com.dance.springcloud.dao.PaymentDao;
import com.dance.springcloud.entities.Payment;
import com.dance.springcloud.service.PaymentService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
/**
*
*/
@Service
public class PaymentServiceImpl implements PaymentService {
@Resource
private PaymentDao paymentDao;
public int create(Payment payment) {
return paymentDao.create(payment);
}
public Payment getPaymentById(Long id) {
return paymentDao.getPaymentById(id);
}
}
package com.dance.springcloud.controller;
import com.dance.springcloud.entities.CommonResult;
import com.dance.springcloud.entities.Payment;
import com.dance.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
/**
*
*/
@RestController
@Slf4j
public class PaymentController {
@Value("${server.port}")
private String serverPort;
@Resource
private PaymentService paymentService;
@PostMapping(value = "/payment/create")
public CommonResult create(Payment payment) {
int result = paymentService.create(payment);
log.info("*****插入结果:" + result);
if (result > 0) {
return new CommonResult(200, "插入数据库成功,serverPort: " + serverPort, result);
} else {
return new CommonResult(444, "插入数据库失败", null);
}
}
@GetMapping(value = "/payment/get/{id}")
public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id) {
Payment payment = paymentService.getPaymentById(id);
if (payment != null) {
return new CommonResult(200, "查询成功,serverPort: " + serverPort, payment);
} else {
return new CommonResult(444, "没有对应记录,查询ID: " + id, null);
}
}
}
好了到此,基础的支付微服务提供者8001就创建完成了
启动项目后,应为添加了Eureka依赖的原因,项目启动后,下面会一直访问Eureka的注册地址,访问不到会报错,不过不用管
访问成功
测试添加数据
到此提供者支付模块搭建完成,其实我也感觉上面写的挺乱的,所以我创建了码云的git仓库
https://gitee.com/flower-dance-mrz/spring-cloud-learning-code.git
这个就是我的项目地址了
作者:彼岸舞
时间:2021\08\16
内容关于:Spring Cloud H版
本文属于作者原创,未经允许,禁止转发