SpringBoot的第一个web项目

素颜马尾好姑娘i 2022-05-29 00:15 190阅读 0赞

这一节主要是讲springboot搭建简单的web项目。

首先pom文件新增spring-boot-starter-web依赖，pom文件如下所示

<?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.dalaoyang</groupId>
    	<artifactId>springboot_web</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>jar</packaging>
    
    	<name>springboot_web</name>
    	<description>springboot_web</description>
    
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>1.5.10.RELEASE</version>
    		<relativePath/> 
    	</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-devtools</artifactId>
    			<scope>runtime</scope>
    		</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>

然后在项目内新建IndexController，代码如下

package com.dalaoyang.controller;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author dalaoyang
     * @Description
     * @project springboot_learn
     * @package com.dalaoyang.controller
     * @email 397600342@qq.com
     * @date 2018/3/13
     */
    @RestController
    public class IndexController {
    
        @RequestMapping("/")
        public String index(){
            return "hi dalaoyang";
        }
    }

启动类SpringbootWebApplication代码如下

package com.dalaoyang;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public class SpringbootWebApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(SpringbootWebApplication.class, args);
    	}
    }

配置文件如下

##设置端口号
    server.port=8888
    
    ##springboot项目默认访问是/ 默认不配置下面属性的话 可以直接通过http://ip:port/可以访问index
    ##如果在配置文件中增加如下配置 则访问时需要访问http://ip:port/dalaoyang
    server.context-path=/dalaoyang

就这样一个简单的springboot web项目搭建完成。

然后启动项目 访问http://localhost:8888/dalaoyang/如下图所示

![Image 1][]

源码下载 ：[大老杨码云][Link 1]

[Image 1]: 
[Link 1]: https://gitee.com/dalaoyang/springboot_learn.git