JAVA Springboot学习

本是古典何须时尚 2022-01-20 13:51 49阅读 0赞

# JAVA Springboot学习 #

本文学习在尚硅谷老师的课程，这是笔记

## 1、安装java8 ##

## 2、安装maven3.3.9 ##

### 配置环境变量 ###

#### 1、新建 ####

变量名 M2\_HOME

变量值 C:\\Program Files\\Java\\apache-maven-3.3.9-bin\\apache-maven-3.3.9

变量名MAVEN\_HOME

变量值C:\\Program Files\\Java\\apache-maven-3.3.9-bin\\apache-maven-3.3.9

#### 2、PATH新建 ####

%M2\_HOME%\\bin

### 配置文档 ###

<mirror>
          <id>alimaven</id>
          <name>aliyun maven</name>
          <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
          <mirrorOf>central</mirrorOf>        
    </mirror>
    
    <profile>
          <id>jdk-1.8</id>
    
          <activation>
          	<activeByDefault>true</activeByDefault>
            <jdk>1.8</jdk>
          </activation>
    
          <properties>
          	<maven.compiler.source>1.8</maven.compiler.source>
          	<maven.compiler.target>1.8</maven.compiler.target>
          	<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
          </properties>
    </profile>

## 3、安装配置idea ##

!\[\](C:\\Users\\dingx\\Pictures\\idea Maven配置.PNG)

## 4、编写Spring配置文档 ##

<parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.9.RELEASE</version>
        </parent>
             
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
        </dependencies>

## 5、编写Springboot主程序， ##

## com.atguigu.HelloWorldMainApplication ##

package com.atguigu;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /* * 这是SpringBootApplication应用主程序 * */
    @SpringBootApplication
    public class HelloWorldMainApplication { 
        public static void main(String[] args) { 
            //Spring应用启动起来
            SpringApplication.run(HelloWorldMainApplication.class, args);
        }
    }

## 6、编写controller, ##

## com.atguigu.controller.HelloController ##

package com.atguigu.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    /* * 处理请求 * */
    @Controller
    public class HelloController { 
    
        @ResponseBody
        @RequestMapping("/")
        public String Hello(){ 
            return "Hello World!";
        }
    }

## 7、打包 ##

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

打包后的文件为在target文件下的jar包，运行即可

java  -jar  包名