[Cloud]1-父工程创建与支付模块构建

JAVA SpringCloud
创建时间:
字数:2k 阅读: 评论:
  1. 工程步骤
  2. 项目创建
    1. idea创建project工作空间
  3. 本章模块
    1. 构建步骤
      1. 创建 cloud-provider-payment8001 模块
    2. application.yml
    3. 建数据库
  4. 编码
    1. 数据封装体CommonResult
    2. contorller
    3. service
    4. impl
    5. dao
    6. dao映射的xml
  5. 测试
    1. postman接口测试

约定 > 配置 > 编码

工程步骤

1、New Project
2、聚合总父工程名字
3、Maven选版本
4、工程名字
5、字符编码-UTF-8
6、注解生效激活
7、java编译版本选择8
8、File Type过滤(可选)

项目创建

idea创建project工作空间

新建一个maven工程，工程名：cloud2020,删除src目录，只留下pom。
修改pom.xml

<packaging>pom</packaging>

完整的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">
  <modelVersion>4.0.0</modelVersion>

  <groupId>xyz.zx21.springcloud</groupId>
  <artifactId>cloud2020</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>pom</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <junit.version>4.12</junit.version>
    <log4j.version>1.2.17</log4j.version>
    <lombok.version>1.16.18</lombok.version>
    <mysql.version>5.1.47</mysql.version>
    <druid.version>1.1.16</druid.version>
    <mybatis.spring.boot.version>1.3.2</mybatis.spring.boot.version>
  </properties>

  <!-- 子模块继承之后，提供作用：锁定版本+子模块不用写groupId和version  -->
  <dependencyManagement>
    <dependencies>
      <!--  springboot 2.2.2    -->
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.2.2.RELEASE</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <!--  springcloud cloud Hoxton.SR1   -->
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>Hoxton.SR1</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <!--  springcloud cloud alibaba 2.1.0.RELEASE    -->
      <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-alibaba-dependencies</artifactId>
        <version>2.1.0.RELEASE</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql.version}</version>
      </dependency>
      <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>${druid.version}</version>
      </dependency>
      <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>${mybatis.spring.boot.version}</version>
      </dependency>
      <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>${log4j.version}</version>
      </dependency>
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
      </dependency>
      <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>${lombok.version}</version>
        <optional>true</optional>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <configuration>
          <fork>true</fork>
          <addResources>true</addResources>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

本章模块

order(客户端消费者80) -> payment(微服务提供者8001)

构建步骤

1、建module
2、改pom
3、写yml
4、主启动
5、业务类

创建 cloud-provider-payment8001 模块

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>cloud2020</artifactId>
        <groupId>xyz.zx21.springcloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloud-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>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <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>

application.yml

server:
  port: 8001

spring:
  application:
    name: cloud-payment-service
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://127.0.0.1:3306/db2019?useUnicode=true&characterEncoding=utf-8&useSSL=false
    username: root
    password: 123456

mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.com.springcloud.entities

建数据库

db2019
sql如下

CREATE TABLE `payment` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'ID',
  `serial` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

编码

实体类Payment

package xyz.zx21.springcloud.entities;

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

import java.io.Serializable;

/**
 * @author Administrator
 * @date 2020/3/19 14:20
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {
    private Long id;
    private String serial;
}

数据封装体CommonResult

用于给前端返回统一格式的数据

package xyz.zx21.springcloud.entities;

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

/**
 * @author Administrator
 * @date 2020/3/19 14:24
 */
@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);
    }
}

contorller

package xyz.zx21.springcloud.controller;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;
import xyz.zx21.springcloud.entities.CommonResult;
import xyz.zx21.springcloud.entities.Payment;
import xyz.zx21.springcloud.service.PaymentService;

import javax.annotation.Resource;

/**
 * @author Administrator
 * @date 2020/3/19 14:28
 */
@RestController
@Slf4j
public class PaymentController {
    @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, "插入成功", result);
        } else {
            return new CommonResult(444, "插入失败", null);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult getPaymentById(@PathVariable("id") Long id) {
        Payment paymentById = paymentService.getPaymentById(id);
        log.info("查询结果:" + paymentById);
        if (paymentById != null) {
            return new CommonResult(200, "查询成功", paymentById);
        } else {
            return new CommonResult(444, "没有对应记录，查询id:" + id, null);
        }
    }
}

service

package xyz.zx21.springcloud.service;

import xyz.zx21.springcloud.entities.Payment;

/**
 * @author Administrator
 * @date 2020/3/19 14:32
 */
public interface PaymentService {
    int create(Payment payment);

    Payment getPaymentById(Long id);
}

impl

package xyz.zx21.springcloud.service.impl;

import org.springframework.stereotype.Service;
import xyz.zx21.springcloud.dao.PaymentDao;
import xyz.zx21.springcloud.entities.Payment;
import xyz.zx21.springcloud.service.PaymentService;

import javax.annotation.Resource;

/**
 * @author Administrator
 * @date 2020/3/19 14:33
 */
@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);
    }
}

dao

package xyz.zx21.springcloud.dao;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import xyz.zx21.springcloud.entities.Payment;

/**
 * @author Administrator
 * @date 2020/3/19 14:34
 */
@Mapper
public interface PaymentDao {
    int create(Payment payment);

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

dao映射的xml

在resources下新建mapper文件夹
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="xyz.zx21.springcloud.dao.PaymentDao">
    <insert id="create" parameterType="xyz.zx21.springcloud.entities.Payment" useGeneratedKeys="true" keyProperty="id">
        insert into payment(serial) values(#{serial});
    </insert>
    <resultMap id="BaseResultMap" type="xyz.zx21.springcloud.entities.Payment">
        <id column="id" property="id" jdbcType="BIGINT"></id>
        <id column="serial" property="serial" jdbcType="VARCHAR"></id>
    </resultMap>
    <select id="getPaymentById" parameterType="java.lang.Long" resultMap="BaseResultMap">
        select * from payment where id = #{id};
    </select>
</mapper>

测试

postman接口测试

get
url：http://127.0.0.1:8001/payment/get/1

返回：

{
    "code": 200,
    "message": "查询成功",
    "data": {
        "id": 1,
        "serial": "小信"
    }
}

post
url：http://127.0.0.1:8001/payment/create?serial=测试

返回：

{
    "code": 200,
    "message": "插入成功",
    "data": 1
}
转载请注明来源，欢迎对文章中的引用来源进行考证，欢迎指出任何有错误或不够清晰的表达。可以在下面评论区评论，也可以邮件至 xiaoxin1218@qq.com

赏

文章标题:[Cloud]1-父工程创建与支付模块构建

文章字数:2k

本文作者:周信

发布时间:2020-03-19, 13:28:06

最后更新:2023-05-03, 10:25:34

原始链接:http://zx21.xyz/2020/03/19/Cloud-1-父工程创建与支付模块构建/

版权声明: "署名-非商用-相同方式共享 4.0" 转载请保留原文链接及作者。

©2018-2023 周信

Built with Hexo and 3-hexo theme

目录
×

可为我打赏鼓励~