spring boot 微服务例子一

package com.example.hello.demo;

import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication@RestController@RequestMapping(value="hello")public class DemoApplication {

public static void main(String[] args) {        SpringApplication.run(DemoApplication.class, args);

}    @RequestMapping(value="/{firstName}/{lastName}",method = RequestMethod.GET)    public String  hello(@PathVariable("firstName") String fName,@PathVariable("lastName") String lName){        return String.format("Hello zhukezhi :%s %s",fName,lName);

}

}

pom文件如下：使用idea的new---》spring initialr功能可以自动生成这个文件。

<?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.example.Hello</groupId>    <artifactId>demo</artifactId>    <version>0.0.1-SNAPSHOT</version>    <packaging>jar</packaging>

<name>demo</name>    <description>Demo project for helloSpring Boot</description>

<parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>2.0.4.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</artifactId>        </dependency>

<dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-test</artifactId>            <scope>test</scope>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>    </dependencies>

<build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>            </plugin>        </plugins>    </build>

</project>

完成以后编译文件并使用内置的tomcat运行http://localhost:8080/hello/julia/david/返回字符串或者json串

原文地址：https://www.cnblogs.com/davidzhu/p/9622533.html