Spring boot 入门学习1. 构建微服务

版权声明：（谢厂节的博客）博主文章绝大部分非原创，转载望留链接。 https://blog.csdn.net/xundh/article/details/82383062

介绍

Spring Boot是由Pivotal团队提供的全新框架，用来简化新Spring应用的初始搭建以及开发过程。

maven 构建Springboot 1.5.3

pom.xml

<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.xundh.springboot</groupId>
  <artifactId>xundh-springboot</artifactId>
  <version>0.0.1-SNAPSHOT</version>

    <packaging>jar</packaging>  
    <name>mySpringBoot</name>  
    <description>Demo project for Spring Boot</description>  
    <parent>  
        <groupId>org.springframework.boot</groupId>  
        <artifactId>spring-boot-starter-parent</artifactId>  
        <version>1.5.3.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-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>

Maven 从demo 构建 SpringBoot2.0项目

git clone https://github.com/xundh/spring-boot-demo
mvn package
mvn eclipse:eclipse

使用 MyEclipse 导入项目，打开运行测试。

文档地址： https://spring.io/projects/spring-boot

IntelliJ IDEA新建 SpringBoot2.0项目

参考：
https://leibnizhu.gitlab.io/2016/11/26/Spring-Boot%E5%BF%AB%E9%80%9F%E5%85%A5%E9%97%A8%EF%BC%88%E4%B8%80%EF%BC%89%E2%80%94%E2%80%94%E4%BB%8B%E7%BB%8D%E4%B8%8E%E5%9F%BA%E7%A1%80Demo/index.html

Maven从头构建 SpringBoot2.0项目

pom.xml

<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.xundh.springboot</groupId>
    <artifactId>springbootdemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>DMPWeb</name>
    <description>Data Manage Platform</description>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.2.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>
    <!-- 核心模块，包括自动配置支持、日志和YAML等 -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!-- 测试模块，包括JUnit、Hamcrest、Mockito等 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- Web模块，包括Spring MVC、内置Tomcat等 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
    <repositories>
        <repository>
            <id>alimaven</id>
            <name>aliyun maven</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <snapshots>
                <enabled>true</enabled>
                <updatePolicy>always</updatePolicy>
            </snapshots>
        </repository>
    </repositories>
</project>

新建启动类：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootDemoApplication.class, args);
    }
}

启动spring boot的方式

• 作为普通java应用程序，通过main函数启动
• 在maven配置里，使用spring-boot插件启动，如执行： mvn spring-boot:run，或单击IDE中对Maven插件的工具。
• 在服务器部署运行时，通常先使用mvn insall打成jar包，再通过java -jar xxx.jar来运行。

单元测试

在/src/test下编写单元测试。