微服务综合案例-02-product服务创建

用户4919348

发布于 2019-06-17 16:19:41

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上篇文章我们分析了我们要实现的案例的需求，本文我们来实现下product服务。因为要创建的项目比较多所以，本案例采用eclipse来开发。

Product服务

因为我们是通过Feign来声明是的调用服务，所以我们需要创建service接口服务。持久层我们通过mybatis操作，所以我们需要通过mybatis的generator插件来帮助我们生存对应文件

一、数据库

product服务对应的是book-product库中的product表

二、mybatis逆向工程

创建一个普通java工程，配置相关配置文件，设置相关参数，生成product表对应的相关信息，如果逆向工程不熟，欢迎参考此文：

https://cloud.tencent.com/developer/article/1409373

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
  PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
   <!-- 数据库的驱动包路径 -->
  <classPathEntry location="C:\Users\dengp\.m2\repository\mysql\mysql-connector-java\5.1.21\mysql-connector-java-5.1.21.jar" />

  <context id="DB2Tables" targetRuntime="MyBatis3">
  <!-- 去掉生成文件中的注释 -->
		<commentGenerator>
			<property name="suppressAllComments" value="true" />
		</commentGenerator>
  	<!-- 数据库链接URL、用户名、密码 --> 
    <jdbcConnection driverClass="com.mysql.jdbc.Driver"  
        connectionURL="jdbc:mysql://localhost:3306/book-product"  
        userId="root"  
        password="123456">  
    </jdbcConnection>   
    <!-- <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" 
          connectionURL="jdbc:oracle:thin:@localhost:1521:XE" 
          userId="car" 
          password="car"> 
  </jdbcConnection>  -->
	
    <javaTypeResolver >
      <property name="forceBigDecimals" value="false" />
    </javaTypeResolver>
	<!-- 生成模型的包名和位置 --> 
    <javaModelGenerator targetPackage="com.bobo.pojo" targetProject="e-book-mybatis-generator\src">
    	<!-- 是否在当前路径下新加一层schema,eg：fase路径com.oop.eksp.user.model， true:com.oop.eksp.user.model.[schemaName] --> 
      <property name="enableSubPackages" value="false" />
      <property name="trimStrings" value="true" />
    </javaModelGenerator>
 	<!-- 生成的映射文件包名和位置 -->
    <sqlMapGenerator targetPackage="com.bobo.mapper"  targetProject="e-book-mybatis-generator\src">
      <property name="enableSubPackages" value="false" />
    </sqlMapGenerator>
 	<!-- 生成DAO的包名和位置 --> 
    <javaClientGenerator type="XMLMAPPER" targetPackage="com.bobo.mapper"  targetProject="e-book-mybatis-generator\src">
      <property name="enableSubPackages" value="false" />
    </javaClientGenerator>
    
     <table  tableName="product" domainObjectName="Product" >
    </table> 
    
  </context>
</generatorConfiguration>

三、创建service服务

创建service项目，此项目是一个SpringCloud项目

引入如下依赖

<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>com.bobo</groupId>
	<artifactId>e-book-product-service</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.13.RELEASE</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Dalston.SR5</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
	</dependencies>
</project>

将生成的Pojo内容拷贝到此项目中

四、创建provider服务

创建product服务的provider应用。也是个SpringCloud项目

1.创建项目

2.添加依赖

完整的pom文件依赖如下

<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>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.13.RELEASE</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.bobo</groupId>
	<artifactId>e-book-product-provider</artifactId>
	<version>0.0.1-SNAPSHOT</version>

	
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.3.4</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
		</dependency>

		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.47</version>
		</dependency>
		<dependency>
			<groupId>com.bobo</groupId>
			<artifactId>e-book-product-service</artifactId>
			<version>0.0.1-SNAPSHOT</version>
		</dependency>
		

	</dependencies>
	
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Dalston.SR5</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

3.添加配置文件

在application.properties中配置如下内容

spring.application.name=e-book-product
server.port=9001
#\u8BBE\u7F6E\u670D\u52A1\u6CE8\u518C\u4E2D\u5FC3\u5730\u5740\uFF0C\u6307\u5411\u53E6\u4E00\u4E2A\u6CE8\u518C\u4E2D\u5FC3
eureka.client.serviceUrl.defaultZone=http://dpb:123456@eureka1:8761/eureka/,http://dpb:123456@eureka2:8761/eureka/

#--------------db----------------
mybatis.type-aliases-package=com.book.product.pojo
mybatis.mapper-locations=classpath:com/bobo/product/mapper/*.xml

spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/book-product?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
spring.datasource.username=root
spring.datasource.password=123456

4.创建启动类

/**
 * provider的启动类
 * @author dengp
 *
 */
@SpringBootApplication
public class Start {

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

}