项目说明及编写HelloController

说明：

1Demo001Application,spring boot

2resourceapplication.properties,Spring boot

3testDemo001ApplicationTestsspring boot

4pom.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  3     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">  4     <modelVersion>4.0.0</modelVersion>  5     <groupId>com.wf</groupId>  6     <artifactId>demo001</artifactId>  7     <version>1.0</version>  8     <packaging>jar</packaging>  9  10     <name>demo001</name> 11     <description>Demo project for Spring Boot</description> 12  13     <parent> 14         <groupId>org.springframework.boot</groupId> 15         <artifactId>spring-boot-starter-parent</artifactId> 16         <version>2.0.4.RELEASE</version> 17         <relativePath/> <!-- lookup parent from repository --> 18     </parent> 19  20     <properties> 21         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 22         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 23         <java.version>1.8</java.version> 24     </properties> 25  26     <dependencies> 27         <dependency> 28             <groupId>org.springframework.boot</groupId> 29             <artifactId>spring-boot-starter-web</artifactId> 30         </dependency> 31  32         <dependency> 33             <groupId>org.springframework.boot</groupId> 34             <artifactId>spring-boot-starter-test</artifactId> 35             <scope>test</scope> 36         </dependency> 37     </dependencies> 38  39     <build> 40         <plugins> 41             <plugin> 42                 <groupId>org.springframework.boot</groupId> 43                 <artifactId>spring-boot-maven-plugin</artifactId> 44             </plugin> 45         </plugins> 46     </build> 47  48  49 </project>

注意观察

spring-boot-starter-parent,,spring-boot-starter-web webspring-boot-starter-test spring boot

mavenmavenSpringboot

1 <mirror> 2  3     <id>huaweicloud</id> 4  5     <mirrorOf>*</mirrorOf> 6  7     <url>https://mirrors.huaweicloud.com/repository/maven/</url> 8  9 </mirror>

启动项目

spring boot,Demo001Application-->RunDemoApplication

在控制台出现如下输出：

SpringBoot

tomcat8080http,1.832

,:http://localhost:8080

404,

HelloController

 1 package com.wf.demo.controller;  2   3 import org.springframework.stereotype.Controller;  4 import org.springframework.web.bind.annotation.RequestMapping;  5 import org.springframework.web.bind.annotation.RequestMethod;  6 import org.springframework.web.bind.annotation.ResponseBody;  7   8 @Controller  9 public class HelloController { 10  11     @RequestMapping(value="/hello",method=RequestMethod.GET) 12     @ResponseBody 13     public String sayHello() { 14         return "hello spring Boot!"; 15     } 16 }

HelloControllercom.offcn.demo。

重启应用，看控制台输出：

hello

访问http://localhost:8080/hello

来源：博客园

作者：互联网蜜蜂

链接：https://www.cnblogs.com/wufeng6/p/11795848.html