1.檔案結構

| -demo1-------------------------------------專案名稱                  
|  | -.idea
|  |  | -libraries
|  |  |  | -compiler.xml
|  |  |  |  -encodings.xml
|  |  |  |  -misc.xml
|  |  |  | -modules.xml
|  |  |  | -workspace.xml
|  | -.mvn
|  |  | -wrapper
|  |  |  | -maven-wrapper.jar
|  |  |  | -maven-wrapper.properties
|  |  -src-----------------------------------原始碼檔案目錄
|  |  | -main
|  |  |  | -java-----------------------------目錄下放置所有java檔案的原始碼檔案
|  |  |  |  | -com.example.demo
|  |  |  |  |  | -DemoApplication------------主函式入口類
|  |  |  | -resources------------------------放置所有的配置檔案，頁面檔案，靜態資原始檔
|  |  |  |  | -static
|  |  |  |  | -templates
|  |  |  |  | -application.properties--------配置檔案
|  |  | -test--------------------------------測試功能檔案目錄
|  |  |  | -java
|  |  |  |  | com.example.demo
|  |  |  |  | | DemoApplicationTests---------測試類
| -.gitignore
| -demo1.iml
| -mvnw
| -mvnw.cmd
| -pom.xml----------------------------------Maven管理：原始碼、配置檔案、開發者的資訊和角色、問題追蹤系統、組織資訊、專案授權、專案的url、專案的依賴關係等等
| -External Libraries 
| -Scartches and Consoles
 

2.配置檔案

常用的配置檔案主要有兩個：

application.properties：各種配置，比如執行埠等，專案初始化後此檔案是空的，需要自己新增配置，不配置預設8080.

pom.xml：Maven對各種包資源的管理

常見的application.properties

# 服務埠號
server.port=8088
# 應用名稱，一般就是專案名稱，這個名稱在SpringCloud中比較關鍵
spring.application.name=customer
#指定當前的活動配置檔案，主要用於多環境多配置檔案的應用中
spring.profiles.active=dev
#配置在使用Thymeleaf做頁面模板時的字首，即頁面所在路徑
spring.thymeleaf.prefix=classpath:/templates/
#設定在使用Thymeleaf做頁面模板時的字尾
spring.thymeleaf.suffix=.html
#設定在使用Thymeleaf做頁面模板時是否啟用快取
spring.thymeleaf.cache=false
#設定靜態資源的請求路徑
spring.mvc.static-path-pattern=/**
#指定靜態資源的路徑
spring.resources.static-locations=classpath:/static/,classpath:/public/

server.servlet.context-path=/adapter
management.endpoints.web.exposure.include=*
management.endpoints.web.exposure.exclude=env,beans

spring.datasource.name=test
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=gbk&zeroDateTimeBehavior=convertToNull
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.filters=stat
spring.datasource.maxActive=20
spring.datasource.initialSize=1
spring.datasource.maxWait=60000
spring.datasource.minIdle=1
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=select 'x'
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
spring.datasource.maxOpenPreparedStatements=20

mybatis.mapper-locations=classpath:mapping/*.xml
mybatis.type-aliases-package=com.example.bootdemo.model

mapper.mappers= com.example.bootdemo.dao
mapper.not-empty=false
mapper.identity=MYSQL

#pagehelper分頁外掛
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.rowBoundsWithCount=true
pagehelper.supportMethodsArguments=true
pagehelper.offsetAsPageNum=true
pagehelper.returnPageInfo=check
#pagehelper.params=count=countSql

# Redis資料庫索引（預設為0）
spring.redis.database=0
# Redis伺服器地址
spring.redis.host=127.0.0.1
# Redis伺服器連線埠
spring.redis.port=6379
# Redis伺服器連線密碼（預設為空）
spring.redis.password=123456
# 連線池最大連線數（使用負值表示沒有限制）
spring.redis.jedis.pool.max-active=8
# 連線池最大阻塞等待時間（使用負值表示沒有限制）
spring.redis.jedis.pool.max-wait=-1
# 連線池中的最大空閒連線
spring.redis.jedis.pool.max-idle=8
# 連線池中的最小空閒連線
spring.redis.jedis.pool.min-idle=0
# 連線超時時間（毫秒）
spring.redis.timeout=5000
 

pom.xml檔案:常用的就是新增dependency節點，新增依賴項，maven會自動提示是否載入資原始檔

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <!-- 父專案的座標。如果專案中沒有規定某個元素的值，那麼父專案中的對應值即為專案的預設值。
            座標包括group ID，artifact ID和 version。 -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <!-- 專案開發者屬性，如即時訊息如何處理等 -->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>
    <!-- 專案引入外掛所需要的額外依賴 -->
    <dependencies>
        <!-- webservices -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web-services</artifactId>
        </dependency>
        <!-- log4j12日誌 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>
        <!-- springboot監控 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <!-- jdbc -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!-- mybatis支援 -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!-- mysql驅動 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!-- tomcat支援 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <!-- 測試支援 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- 新增redis支援-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <!-- spring 使用redis 儲存session狀態. -->
        <!--
         <dependency>
          <groupId>org.springframework.session</groupId>
          <artifactId>spring-session-data-redis</artifactId>
        </dependency>
        -->
        <!--
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
            <version>2.4.2</version>
        </dependency>
        -->
        <!--
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-joda</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-parameter-names</artifactId>
        </dependency>
        -->
        <!-- 分頁外掛 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.3</version>
        </dependency>
        <!-- alibaba的druid資料庫連線池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.0</version>
        </dependency>
        <!-- 工具類 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <!-- 熱部署 -->
        <!-- 這個需要為 true 熱部署才有效 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- 自定義配置 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <!-- jsp支援 -->
        <!--
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
         <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.2.2</version>
        </dependency>
        -->
        <!-- 驗證碼 -->
        <!--
        <dependency>
            <groupId>com.github.penggle</groupId>
            <artifactId>kaptcha</artifactId>
            <version>2.3.2</version>
        </dependency>
        -->
        <!-- 阿里json -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>
        <dependency>
            <groupId>com.tencentcloudapi</groupId>
            <!-- 注：這裡的版本號請參考github或者maven倉庫最新版本號  -->
            <artifactId>tencentcloud-sdk-java</artifactId>
            <version>3.0.8</version>
        </dependency>
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
        </dependency>
    </dependencies>
    <!-- 構建專案需要的資訊 -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>