使用springboot開發的第一個web入門程序的實現
1.新建一個springboot初始化項目
2.輸入自己的包名,項目名及jdk版本,再點擊Next
3.勾選Spring Web,再點擊Next
4.再點擊Next,再Finish 默認的項目結構如下圖
(1)修改pom.xml文件
完整的pom.xml為:
<?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>2.4.5</version><relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.zou</groupId> <artifactId>springboot_demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot_demo</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></dependency><dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13.2</version></dependency><!--引入熱部署依賴--><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId></dependency><!--引入lombok組件--><dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.16</version></dependency><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional></dependency> </dependencies></project>
(2)新建一個ControllerDemo類
ControllerDemo的代碼如下
package com.zou.controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;/** * @author: 鄒祥發 * @date: 2021/4/19 17:12 * springBoot啟動程序的目錄一定要在controller等目錄的至少上一級,或者在SpringBootApplication 注解中添加屬性: * @SpringBootApplication(scanBasePackages = {'com.zou.controller'}) */@RestControllerpublic class ControllerDemo { @RequestMapping('/demo') public String demo(){return '小鄒太帥了'; }}
注:springBoot啟動程序的目錄一定要在controller等目錄的至少上一級,或者在SpringBootApplication 注解中添加屬性:
@SpringBootApplication(scanBasePackages = {'com.zou.controller'})
(3)在application.properties中修改端口號
server.port=8081
(4)測試
(5)打開瀏覽器,訪問http://localhost:8081/demo,因為在之前的ControllerDemo里面配置的訪問路徑為/demo
(6)到這里第一個springboot開發web的入門程序就完成了。
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