5.学习笔记-支付模块构建

程序员文章站 2022-03-15 21:04:39

...

学习笔记-支付模块构建

youyangcloud-provider-payment8001 微服务提供者支付Module模块

创建youyangcloud-provider-payment8001

创建maven,只填写模块名即可，无需其他操作

改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>youyangcloud</artifactId>
        <groupId>com.youyang.springcloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>youyangcloud-provider-payment8001</artifactId>

    <dependencies>
        <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>

写YML

server:
  port: 8001

spring:
  application:
    name: youyangcloud-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://192.168.25.157:3306/db2019?useUnicode=true&characterEncoding=utf-8&useSSL=false
    username: root
    password: root

mybatis:
    mapperLocations: classpath:mapper/*.xml
    type-aliases-package: com.youyang.springcloud.entities    # 所有Entity别名类所在包

主启动

package com.youyang.springcloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 11:43
 * @Description:
 * @Version: 1.0
 */
@SpringBootApplication
public class PaymentMain8001 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentMain8001.class,args);
    }
}

业务类

建表SQL

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=utf8

entities

com.youyang.springcloud.entities.Payment

package com.youyang.springcloud.entities;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 12:01
 * @Description: 支付实体类
 * @Version: 1.0
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {
    private long id;
    private String serial;
}

JSON 封装体 CommonResult

package com.youyang.springcloud.entities;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.sql.PreparedStatement;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 12:01
 * @Description:  JSON 封装体
 * @Version: 1.0
 */
@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);
    }
}

dao

com.youyang.springcloud.dao.PaymentDao

package com.youyang.springcloud.dao;

import com.youyang.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 12:08
 * @Description: 使用mapper 不用Respository(插入可能会有问题)
 * @Version: 1.0
 */
@Mapper
public interface PaymentDao {
    public int create(Payment payment);

    public Payment getPaymentById(@Param("id") Long id);
}

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.youyang.springcloud.dao.PaymentDao">

    <resultMap id="BaseResultMap" type="com.youyang.springcloud.entities.Payment">
        <result column="id" jdbcType="BIGINT" property="id"/>
        <result column="serial" jdbcType="VARCHAR" property="serial"/>

    </resultMap>

    <insert id="create" parameterType="Payment" useGeneratedKeys="true" keyProperty="id">
        insert into payment(serial) value(#{serial});
    </insert>

    <select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
        select * from payment where id=#{id};
    </select>

</mapper>

service

com.youyang.springcloud.service.PaymentService

package com.youyang.springcloud.service.impl;

import com.youyang.springcloud.dao.PaymentDao;
import com.youyang.springcloud.entities.Payment;
import com.youyang.springcloud.service.PaymentService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 12:23
 * @Description:
 * @Version: 1.0
 */
@Service
public class PaymentServiceImpl implements PaymentService {

    @Resource
    private PaymentDao paymentDao;

    @Override
    public int create(Payment payment) {
        return paymentDao.create(payment);
    }

    @Override
    public Payment getPaymentById(Long id) {
        return paymentDao.getPaymentById(id);
    }
}

com.youyang.springcloud.service.impl.PaymentServiceImpl

package com.youyang.springcloud.service;

import com.youyang.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Param;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 12:23
 * @Description:
 * @Version: 1.0
 */
public interface PaymentService {
    public int create(Payment payment);

    public Payment getPaymentById(@Param("id") Long id);
}

controller

com.youyang.springcloud.controller.PayentController

package com.youyang.springcloud.controller;

import com.youyang.springcloud.entities.CommonResult;
import com.youyang.springcloud.entities.Payment;
import com.youyang.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;

/**
 * @Author: yangjian
 * @Data: 2021/04/04 - 12:26
 * @Description:
 * @Version: 1.0
 */
@RestController
@Slf4j
public class PayentController {

    @Resource
    private PaymentService paymentService;

    @PostMapping(value = "/payment/create")
    public CommonResult<Payment> 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",result);
        }else {
            return new CommonResult(444,"插入数据库失败",null);
        }
    }
    @GetMapping(value = "/payment/get/{id}")
    public CommonResult<Payment> create(@PathVariable("id") Long id){
       Payment payment = paymentService.getPaymentById(id);
        log.info("*******查询结果********："+payment);
        if (payment != null){
            return new CommonResult(200,"查询成功",payment);
        }else {
            return new CommonResult(444,"查询失败",null);
        }
    }

}

测试

测试工具 postman

本文仅作为自己笔记，不作为他人参考

5.学习笔记-支付模块构建

学习笔记-支付模块构建

机器学习笔记（一）：python 模块 numpy

Python学习笔记：json模块和pickle模块

Python学习笔记之os模块使用总结

Python学习笔记之读取文件、OS模块、异常处理、with as语法示例

java9学习笔记之模块化详解

java9学习笔记之模块化详解

Python中Random和Math模块学习笔记

Python学习笔记之读取文件、OS模块、异常处理、with as语法示例

Python学习笔记之os模块使用总结

Angular2学习笔记——详解NgModule模块