SpringBoot项目搭建指南-EW帮帮网

SpringBoot项目搭建指南

文章目录

SpringBoot项目搭建指南

github: https://github.com/chen-jiacheng/data-access-samples

一、SpringBoot项目搭建

1.1 SpringBoot 版本选择

Spring Boot 2.7.18 需要Java 8，并且兼容 Java 21（包括 Java 21）。还需要Spring Framework 5.3.31或更高版本。
Spring Boot 3.5.0 至少需要Java 17，并且兼容 Java 24 及以上版本。还需要Spring Framework 6.2.7或更高版本。

https://docs.spring.io/spring-boot/docs/2.7.18/reference/htmlsingle/#getting-started

1.2 SpringBoot 框架引入方式

https://docs.spring.io/spring-boot/docs/2.7.18/maven-plugin/reference/htmlsingle/

1.2.1 继承 Starter Parent POM

<!-- Inherit defaults from Spring Boot -->
<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.7.18</version>
</parent>

1.2.2 不使用 Parent POM 来使用 Spring Boot

<dependencyManagement>
    <dependencies>
        <dependency>
            <!-- Import dependency management from Spring Boot -->
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>2.7.18</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<build>
	 <pluginManagement>
	     <plugins>
	         <plugin>
	             <groupId>org.springframework.boot</groupId>
	             <artifactId>spring-boot-maven-plugin</artifactId>
	             <version>2.7.18</version>
	         </plugin>
	     </plugins>
	 </pluginManagement>
    </build>

1.3 SpringBoot 打包插件

 <build>
     <plugins>
         <plugin>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-maven-plugin</artifactId>
             <executions>
                 <execution>
                     <goals>
                         <goal>repackage</goal>
                     </goals>
                 </execution>
             </executions>
         </plugin>
     </plugins>
 </build>

二、日志框架引入

https://docs.spring.io/spring-boot/docs/2.7.18/reference/htmlsingle/#spring-boot-starter-logging

2.1 引入SpringBoot管理的Slf4j+Log4j2

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>

2.2 log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="TRACE" monitorInterval="30">
    <Properties>
        <Property name="PROJECT_NAME">spring-boot-samples</Property>
        <Property name="LOG_PATH">./data/logs</Property>
        <Property name="pattern">[%d{yyyy-MM-dd HH:mm:ss,SSS}] [%c{1.}::%M] [%t] [%p]: %m%n</Property>
    </Properties>

    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="${pattern}"/>
        </Console>
        <RollingFile name="RollingFile" fileName="${LOG_PATH}/${PROJECT_NAME}.log"
                     filePattern="${LOG_PATH}/${PROJECT_NAME}-%d{yyyy-MM-dd}-%i.log">
            <PatternLayout pattern="${pattern}"/>
            <Policies>
                <TimeBasedTriggeringPolicy interval="1" modulate="true"/>
                <SizeBasedTriggeringPolicy size="100 MB"/>
            </Policies>
            <DefaultRolloverStrategy max="10">
                <Delete basePath="${LOG_PATH}" maxDepth="10">
                    <IfLastModified age="30d"/>
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>
    </Appenders>
    <Loggers>
        <Root level="info">
            <appender-ref ref="Console"/>
            <appender-ref ref="RollingFile"/>
        </Root>
    </Loggers>
</Configuration>

2.3 application.properties

logging.config=classpath:log4j2.xml

三、数据库相关框架引入

3.1 数据库驱动

使用SpringBoot管理的就行

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
</dependency>

3.2 数据源

前置条件: JDK8

Druid Spring Boot Starter 用于帮助你在Spring Boot项目中轻松集成Druid数据库连接池和监控。 druid-spring-boot-starter 适用于Spring boot 2。如果Spring boot版本 >= 3.0.0请使用 druid-spring-boot-3-starter。

https://github.com/alibaba/druid
https://github.com/alibaba/druid/tree/master/druid-spring-boot-starter

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
</dependency>

3.3 MyBatis

前置条件: JDK8

master : MyBatis 3.5, MyBatis-Spring 3.0, Java 17+ and Spring Boot 3.0-3.4
2.3.x : MyBatis 3.5, MyBatis-Spring 2.1, Java 8+ and Spring Boot 2.7

https://github.com/mybatis/spring-boot-starter

<dependency>
     <groupId>org.mybatis</groupId>
     <artifactId>mybatis</artifactId>
 </dependency>
 <dependency>
     <groupId>org.mybatis.spring.boot</groupId>
     <artifactId>mybatis-spring-boot-starter</artifactId>
 </dependency>

mapper.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="com.chenjiacheng.data.access.samples.dao.mapper.SampleUserMapper">
	<select id="findAllUsers" resultMap="sampleUserResultMap">
	</select>
	
	<insert id="insertUser" parameterType="com.chenjiacheng.data.access.samples.dao.model.SampleUser">
	</insert>
	
	<delete id="deleteUser" parameterType="long">
	</delete>
	
	<update id="updateUser" parameterType="com.chenjiacheng.data.access.samples.dao.model.SampleUser">
	</update>
</mapper>

3.4 数据库相关配置

## jdbc
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/data_access_samples_db
spring.datasource.username=root
spring.datasource.password=Yqywf,Rmhpy.1@
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

## driver
spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver

## druid
spring.datasource.druid.validationQuery="select 1 from dual"
spring.datasource.druid.initialSize=10
spring.datasource.druid.maxActive=10
spring.datasource.druid.minIdle=10
spring.datasource.druid.maxWait=500
spring.datasource.druid.testWhileIdle=true
spring.datasource.druid.timeBetweenEvictionRunsMillis=15000
spring.datasource.druid.minEvictableIdleTimeMillis=30000
spring.datasource.druid.keepAlive=true

# mybatis
mybatis.configuration.map-underscore-to-camel-case=true
mybatis.configuration.use-generated-keys=true
mybatis.mapper-locations=classpath*:mapper/*.xml
mybatis.type-aliases-package=com.chenjiacheng.webapp.plus.dao.model
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

四、其他解决方案

4.1 springboot多数据源

https://cloud.tencent.com.cn/developer/article/2416429?from=15425

SpringBoot项目搭建指南