使用 IEDA 创建一个 Spring Boot 项目
第一步：
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第二步：
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第三步，填写 Group 和 Artifact，一直下一步直到完成创建：
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第四步，删除 src 文件夹，修改 pom 文件：
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pom 文件如下：
<?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.etrols</groupId>
<artifactId>spring-boot-study-plan</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>spring-boot-study-plan</name>
<description>spring-boot-study-plan project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>Cairo-SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.0.3.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</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-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
第五步，新建一个子模块：
选中项目，右键 --》New --》 Module
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项目结构如下：
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spring-boot-study-helloword 的pom 文件如下：
<?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>
<artifactId>spring-boot-study-helloword</artifactId>
<packaging>jar</packaging>
<name>spring-boot-study-helloword</name>
<description>spring-boot-study-helloword project for Spring Boot</description>
<parent>
<groupId>com.etrols</groupId>
<artifactId>spring-boot-study-plan</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../</relativePath>
</parent>
<dependencies>
</dependencies>
</project>
在父 pom 文件（spring-boot-study-plan）加入<module>spring-boot-study-helloword</module>：
<?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.etrols</groupId>
<artifactId>spring-boot-study-plan</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>spring-boot-study-plan</name>
<description>spring-boot-study-plan project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<modules>
<module>spring-boot-study-helloword</module>
</modules>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>Cairo-SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.0.3.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</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-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Hello Word 程序
Spring Boot 入口 SpringBootStudyHellowordApplication：
package com.etrols;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootStudyHellowordApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootStudyHellowordApplication.class, args);
}
}
在包 com.etrols.helloword.controller 下新建 HelloController
package com.etrols.helloword.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* Hello控制器
*
* @author Etrols
*/
@RestController
@RequestMapping("hello")
public class HelloController {
/**
* hello
*
* @return String
*/
@GetMapping
public String hello() {
return "hello spring boot";
}
}
启动项目并访问：
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如上图所示，控制台输出 hello spring boot，一个 spring boot 程序就此完成。
