创建Provider模块

1. 新建模块

在项目名上右键，依次点击 新建 > 新模块

在左侧选择Spring Initializr

在右侧输入模块名称provider，语言选择Java，构建系统选Maven，打包选择Jar，然后点击“下一步”

然后按照下图所示，从左侧选择依赖：Spring Web、JDBC API、MyBatis Framework、MySQL Driver、Eureka Discovery Client

新建完provider模块后，在pom.xml上右键，选择添加为 Maven 项目

修改pom.xml，添加对common模块的依赖，修改完之后重载Maven项目。完整配置如下文所示

<?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 https://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>3.2.4</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>provider</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>provider</name>
	<description>provider</description>
	<properties>
		<java.version>17</java.version>
		<spring-cloud.version>2023.0.1</spring-cloud.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<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>3.0.3</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
		</dependency>
		<dependency>
			<groupId>com.example</groupId>
			<artifactId>common</artifactId>
			<version>1.0-SNAPSHOT</version>
		</dependency>

		<dependency>
			<groupId>com.mysql</groupId>
			<artifactId>mysql-connector-j</artifactId>
			<scope>runtime</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter-test</artifactId>
			<version>3.0.3</version>
			<scope>test</scope>
		</dependency>
	</dependencies>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>${spring-cloud.version}</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>

2. 修改配置

打开application.properties，按照下图修改

3. 修改代码

(1) 新建Mapper

在com.example.provider包下，新建mapper包。并在com.example.provider.mapper包下，新建StudentMapper接口。代码如下图所示

(2) 新建Mapper.xml

在resources目录下，新建mapper目录。并在mapper目录下，新建StudentMapper.xml文件。代码如下图所示

(3) 新建Service

在com.example.provider包下，新建service包。并在com.example.provider.service包下，新建StudentService类。代码如下图所示

(4) 新建Controller

在com.example.provider包下，新建controller包。并在com.example.provider.controller包下，新建StudentController类。代码如下图所示

4. 构建模块

先点击provider模块下的maven clean，完成后再点击maven compile，构建模块