搭建第一个SPRINGBOOT项目

环境配置：JDK1.8 MAVEN3.5 MYSQL2.7 MYBATIS1.3

1,设置ALIBABA SETTING 文件：**解决下载jar 包，速度太慢的问题：

<?xml version="1.0" encoding="UTF-8"?>
<profiles>
	<profile>
		<id>development</id>
		<repositories>
			<repository>
				<id>central</id>
				<url>http://central</url>
				<releases>
					<enabled>true</enabled>
					<updatePolicy>always</updatePolicy>
				</releases>
				<snapshots>
					<enabled>true</enabled>
					<updatePolicy>always</updatePolicy>
				</snapshots>
			</repository>
		</repositories>
		<pluginRepositories>
			<pluginRepository>
				<id>central</id>
				<url>http://central</url>
				<releases>
					<enabled>true</enabled>
					<updatePolicy>always</updatePolicy>
				</releases>
				<snapshots>
					<enabled>true</enabled>
					<updatePolicy>always</updatePolicy>
				</snapshots>
			</pluginRepository>
		</pluginRepositories>
	</profile>
	<profile>
		<!--this profile will allow snapshots to be searched when activated -->
		<id>public-snapshots</id>
		<repositories>
			<repository>
				<id>public-snapshots</id>
				<url>http://public-snapshots</url>
				<releases>
					<enabled>false</enabled>
				</releases>
				<snapshots>
					<enabled>true</enabled>
					<updatePolicy>always</updatePolicy>
				</snapshots>
			</repository>
		</repositories>
		<pluginRepositories>
			<pluginRepository>
				<id>public-snapshots</id>
				<url>http://public-snapshots</url>
				<releases>
					<enabled>false</enabled>
				</releases>
				<snapshots>
					<enabled>true</enabled>
					<updatePolicy>always</updatePolicy>
				</snapshots>
			</pluginRepository>
		</pluginRepositories>
	</profile>
	<!-- setting 文件配置为jdk1.8 -->
	<profile>
		<id>
			jdk18
		</id>
		<activation>
			<activeByDefault>true</activeByDefault>
			<jdk>1.8</jdk>
		</activation>
		<properties>
			<maven.compiler.source>1.8</maven.compiler.source>
			<maven.compiler.target>1.8</maven.compiler.target>
			<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
		</properties>
	</profile>

</profiles>

<activeProfiles>
	<activeProfile>development</activeProfile>
	<activeProfile>public-snapshots</activeProfile>
</activeProfiles>
</settings>

2，pom 文件加载

<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<!-- <version>2.0.6.RELEASE</version> -->
		<version>1.5.10.RELEASE</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.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-thymeleaf</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>1.3.2</version>
		</dependency>

		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>
		<!--集成druid，使用连接池 alibaba 数据库连接池 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.1.0</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>
		<!-- springboot工具 修改代码后不需重启即生效 适用于maven 插件 -->
		<!-- <dependency> <groupId>org.springframework</groupId> <artifactId>springloaded</artifactId> 
			<version>1.2.6.RELEASE</version> </dependency> -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<optional>true</optional>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<!--fork : 如果没有该项配置，则devtools不会起作用，即应用不会restart -->
					<fork>true</fork>
					<addResources>true</addResources>
				</configuration>
			</plugin>
		</plugins>
	</build>