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springboot开发 第一个案例之hello,world!

时间:2016-08-11 15:45:42      阅读:277      评论:0      收藏:0      [点我收藏+]

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开发环境:(1)Eclipse Java EE  Version: Neon Release (4.6.0)  Build id: 20160613-1800   

     (2)apache-maven-3.2.5

     (3)jdk 1.8

配置:(1)Java_HOME 和jdk path路径

   (2)在eclipse里面配置maven:打开windows- preferences-maven。installations里面点击add,添加本地解压包maven的安装路径。在User Settings里面设置User Settings路径为:maven安装路径下的文件:我的是D:\apache-maven-3.2.5\conf\settings.xml。打开D:\apache-maven-3.2.5\conf\settings.xml文件,修改里面的 为<localRepository>C:\Users\Hao\.m2\repositorys</localRepository>,这里主要存放所需的依赖和jar包。

 

开发:新建maven项目。

技术分享

修改pom.xml:

<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>A</groupId>
  <artifactId>A</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>A</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

     <!-- Inherit defaults from Spring Boot -->  
    <parent>
        <groupId>org.springframework.boot</groupId>  
        <artifactId>spring-boot-starter-parent</artifactId>  
        <version>1.3.6.RELEASE</version>  
    </parent> 

<!-- Add typical dependencies for a web application -->  
    <dependencies>  
        <dependency>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-starter-web</artifactId>  
        </dependency>  
    </dependencies>  
  
  
</project>

App类:

package A;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication

@ComponentScan("controller")
public class App 
{
    public static void main( String[] args )
    {
         SpringApplication.run(App.class, args);
    }
}

其中:

@ComponentScan("controller") 标识controller所在文件夹

controller
package controller;

import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("echo")
public class TestController {

    @RequestMapping("/{text}")
    public String echo(@PathVariable("text") String text){
        return "hello world," + text;
    }
}

运行app启动类,打开浏览器输入:http://localhost:8080/echo/test 

显示: hello world,test 结果即为成功。

             

springboot开发 第一个案例之hello,world!

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原文地址:http://www.cnblogs.com/pilihaotian/p/5760844.html

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