一、spring boot 2.x hello world
阿新 • • 發佈:2018-12-17
1、建立maven專案,結構如下:
2、在pom中引入相關依賴
<?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.ldy</groupId> <artifactId>boot_v2_hello</artifactId> <version>1.0.0</version> <packaging>jar</packaging> <name>boot_v2_hello</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.6.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>
3、建立入口類:BootV2App.java
package com.ldy.bootv2.demo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class BootV2App { public static void main(String[] args) { SpringApplication.run(BootV2App.class, args); } }
4、編寫hello world 介面:HelloController.java
package com.ldy.bootv2.demo; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class HelloController { @GetMapping("/hello") public String index(String name) { return "hello " + name; } }
5、啟動專案:執行BootV2App.java中的main方法
滑鼠右鍵- ->Run As --> Java Application,啟動成功後控制檯顯示資訊如下:
6、測試hello world 介面:開啟瀏覽器,在位址列輸入:127.0.0.1:8080/hello?name=ldy,如圖
到此,spring boot 2.x構建結束!