springboot之快速构建springboot应用

西西嘛呦

发布于 2020-08-26 15:46:05

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发布于 2020-08-26 15:46:05

文章被收录于专栏：数据分析与挖掘数据分析与挖掘

1、新建project时选择Spring Initializr：

2、输入相关信息

3、根据需要选择相关的依赖，这里我只选择web

4、点击finish即可

5、项目建成之后的目录结构。

static：用于存放静态文件

templates：用于存放模板文件，暂不支持jsp。

application.properties：可以在里面进行设置springboot的相关设置

看一下Myspringboot2Application.java

package com.gong.springboot;

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

@SpringBootApplication
public class Myspringboot2Application {

    public static void main(String[] args) {
        SpringApplication.run(Myspringboot2Application.class, args);
    }

}

pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.gong</groupId>
    <artifactId>myspringboot2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>myspringboot2</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <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>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

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

</project>

跟我们之前建的maven项目差别不大，额外多了个springboot的单元测试依赖。

同样的，我们在com.gong.springboot下新建controller包，并在该包下新建HelloWorldController.java

package com.gong.springboot.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@ResponseBody
@Controller
public class HelloWorldController {

    @RequestMapping("/hello")
    public String hello(){
        return "hello world!";
    }

}

启动主配置类：