SpringBoot框架搭建

1.简介

SpringBoot框架最大的有点在于快速开发，快速开发的原理就是SpringBoot中的三大主要配置：

起步依赖，引导类，属性配置文件（两类三种，第一类是application.yaml和application.yml类的配置文件，第二类是application.properties)
1.起步依赖：将一个框架所必须的依赖jar包和环境集成，直接引入起步依赖便完成了jar包的引入问题。
2.引导类：可直接启动项目
3.属性配置文件：可以将数据源，端口。。等信息添加进去，具体的配置方式需要按照要求引入。

2.搭建步骤

2.1 首先先创建一个Maven项目，按照目录结构创建包（Application.java是引导类，引导类必须放在当前项目的根目录下，否则不会出现spring的图标，项目无法启动）controller/service/dao（mapper）分别是三层架构，util是工具类

图片

2.2在pom.xml中添加起步依赖

    <parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.0.1.RELEASE</version>
	<relativePath /> <!-- lookup parent from repository -->
</parent>
<!-- 配置编码 和开发jdk版本 -->
<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>

	<!-- spring-boot jap web tomcat -->
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-data-jpa</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-tomcat</artifactId>
		<!--<scope>provided</scope>-->
	</dependency>

	<!-- mysql -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<scope>runtime</scope>
	</dependency>

	<!-- 工具类 -->
	<dependency>
		<groupId>org.apache.commons</groupId>
		<artifactId>commons-lang3</artifactId>
	</dependency>

	<!-- 解密加密工具 -->
	<dependency>
		<groupId>org.bouncycastle</groupId>
		<artifactId>bcprov-jdk16</artifactId>
		<version>1.46</version>
	</dependency>

	<!-- 数据库连接池 -->
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>druid</artifactId>
		<version>1.1.9</version>
	</dependency>
	<dependency>
		<groupId>com.aliyun</groupId>
		<artifactId>aliyun-java-sdk-core</artifactId>
		<version>3.2.8</version>
	</dependency>
	<dependency>
		<groupId>com.aliyun.oss</groupId>
		<artifactId>aliyun-sdk-oss</artifactId>
		<version>2.8.3</version>
	</dependency>
	<dependency>
		<groupId>com.aliyun</groupId>
		<artifactId>aliyun-java-sdk-dysmsapi</artifactId>
		<version>1.1.0</version>
	</dependency>

	<!-- json工具 -->
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>fastjson</artifactId>
		<version>1.2.47</version>
	</dependency>
	<dependency>
		<groupId>com.aliyun</groupId>
		<artifactId>aliyun-java-sdk-cloudauth</artifactId>
		<version>1.1.2</version>
	</dependency>

	<!-- redis -->
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-data-redis</artifactId>
	</dependency>
	<!-- 手机三方验证 -->
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>fastjson</artifactId>
		<version>1.2.15</version>
	</dependency>
	<dependency>
		<groupId>org.apache.httpcomponents</groupId>
		<artifactId>httpclient</artifactId>
	</dependency>
	<dependency>
		<groupId>org.apache.httpcomponents</groupId>
		<artifactId>httpcore</artifactId>
	</dependency>
	<!-- <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> 
		<version>2.6</version> </dependency> -->
	<dependency>
		<groupId>org.eclipse.jetty</groupId>
		<artifactId>jetty-util</artifactId>
	</dependency>
	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<scope>test</scope>
	</dependency>

	<!--微信授权登录 -->
	<dependency>
		<groupId>commons-beanutils</groupId>
		<artifactId>commons-beanutils</artifactId>
		<version>1.8.3</version>
	</dependency>
	<dependency>
		<groupId>commons-codec</groupId>
		<artifactId>commons-codec</artifactId>
		<version>1.10</version>
	</dependency>
	<dependency>
		<groupId>commons-collections</groupId>
		<artifactId>commons-collections</artifactId>
		<version>3.2.1</version>
	</dependency>
	<dependency>
		<groupId>commons-httpclient</groupId>
		<artifactId>commons-httpclient</artifactId>
		<version>3.1</version>
	</dependency>
	<dependency>
		<groupId>commons-lang</groupId>
		<artifactId>commons-lang</artifactId>
		<version>2.6</version>
	</dependency>
	<dependency>
		<groupId>commons-logging</groupId>
		<artifactId>commons-logging</artifactId>
		<version>1.2</version>
	</dependency>
	<dependency>
		<groupId>net.sf.ezmorph</groupId>
		<artifactId>ezmorph</artifactId>
		<version>1.0.6</version>
	</dependency>
	<dependency>
		<groupId>org.apache.httpcomponents</groupId>
		<artifactId>httpclient</artifactId>
		<version>4.5.2</version>
	</dependency>
	<dependency>
		<groupId>org.apache.httpcomponents</groupId>
		<artifactId>httpcore</artifactId>
		<version>4.4.6</version>
	</dependency>
	<dependency>
		<groupId>net.sf.json-lib</groupId>
		<artifactId>json-lib</artifactId>
		<version>2.4</version>
		<classifier>jdk15</classifier>
	</dependency>

	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-cache</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-data-redis</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-test</artifactId>
		<scope>test</scope>
	</dependency>
	<dependency>
		<groupId>com.fasterxml.jackson.core</groupId>
		<artifactId>jackson-databind</artifactId>
		<version>2.9.6</version>
	</dependency>
	<!-- <dependency> -->
	<!-- <groupId>com.alipay</groupId> -->
	<!-- <artifactId>alipay-sdk-java</artifactId> -->
	<!-- <version>3.0.0</version> -->
	<!-- <scope>system</scope> -->
	<!-- <systemPath>${project.basedir}/libs/alipay-sdk-java-3.0.0.jar</systemPath> -->
	<!-- </dependency> -->
	<dependency>
		<groupId>com.github.wxpay</groupId>
		<artifactId>wxpay-sdk</artifactId>
		<version>0.0.3</version>
	</dependency>
	
	<dependency>  
        <groupId>com.google.zxing</groupId>  
        <artifactId>javase</artifactId>  	
        <version>3.0.0</version>  
	</dependency>
	<!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
	<dependency>
	    <groupId>com.github.pagehelper</groupId>
	    <artifactId>pagehelper</artifactId>
	    <version>5.1.2</version>
	</dependency>
	
</dependencies>

<build>
	<!-- maven工具集成 -->
	<plugins>
		<plugin>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-maven-plugin</artifactId>
			<!-- <configuration> -->
			<!-- <includeSystemScope>true</includeSystemScope> -->
			<!-- </configuration> -->
		</plugin>
	</plugins>
</build>

2.3属性配置文件application.properties

    #DB Configuration:

    spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver

    spring.datasource.url=jdbc:mysql://localhost:3306/space?serverTimezone=UTC

    spring.datasource.username=root

    spring.datasource.password=123456


    #JPA Configuration:

    spring.jpa.database=MySQL

    spring.jpa.show-sql=true

    spring.jpa.generate-ddl=true

    spring.jpa.hibernate.ddl-auto=update

    spring.jpa.hibernate.naming_strategy=org.hibernate.cfg.ImprovedNamingStrategy

    spring.freemarker.checkTemplateLocation=false

    spring.thymeleaf.cache=false

2.4创建引导类

    @SpringBootApplication
    public class Application {
    	public static void main(String[] args) {
        	//启动springboot实例化spring容器调用内置的tomcat
    		SpringApplication.run(Application.class, args);
    	}
    }
项目到这里就创建完成了，接下来是启动springboot，当出现下图时则表明启动成功

图片

接下来完善各个层的代码，就完成了springboot的搭建。

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原文地址：https://www.cnblogs.com/hxd1017/p/13128664.html