SpringBoot基本介绍及Get方法接口开发

简介

SpringBoot所具备的特征有：

（1）可以创建独立的Spring应用程序，并且基于其Maven或Gradle插件，可以创建可执行的JARs和WARs；

（2）内嵌Tomcat或Jetty等Servlet容器；

（3）提供自动配置的“starter”项目对象模型（POMS）以简化Maven配置；

（4）尽可能自动配置Spring容器；

（5）提供准备好的特性，如指标、健康检查和外部化配置；

（6）绝对没有代码生成，不需要XML配置

官网地址： https://spring.io/projects/spring-boot/

快速接口开发

1、maven配置信息

<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.0.RELEASE</version> </parent> <!--https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web--> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies>

2、简单案例

package com.hello; import org.springframework.boot.*; import org.springframework.boot.autoconfigure.*; import org.springframework.stereotype.*; import org.springframework.web.bind.annotation.*; @Controller @EnableAutoConfiguration public class SampleController { @RequestMapping("/") @ResponseBody String home() { return "Hello World!"; } public static void main(String[] args) throws Exception { SpringApplication.run(SampleController.class, args); } }

3、使用SpringBoot开发Get方法的接口

3.1、创建SpringBoot入口类

import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan; @SpringBootApplication @ComponentScan("com") public class Application { public static void main(String[] args) { SpringApplication.run(Application.class,args); } }

3.2、简单的get方法接口

package com.server; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; @RestController public class MyGetMethod { @RequestMapping(value = "/getCookie",method = RequestMethod.GET) public String getCookie(){ return "这是一个不带参数的Get请求"; } }

3.3、获取Cookie信息的get方法接口

package com.server; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletResponse; @RestController public class MyGetCookieMethod { @RequestMapping(value = "/getCookieMethod",method = RequestMethod.GET) public String getCookieMethod(HttpServletResponse response){ Cookie cookie = new Cookie("login","true"); response.addCookie(cookie); return "这是一个获取Cookie信息的Get方法接口"; } }

 

3.3、需要携带Cookies信息访问的Get方法接口

package hello; import com.sun.deploy.net.HttpRequest; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; @RestController public class getWithCookies { @RequestMapping(value = "/getWithCookie",method = RequestMethod.GET) public String getWithCookiesMethod(HttpServletRequest request){ Cookie [] cookies = request.getCookies(); for(Cookie cookie: cookies){ if(cookie.getName().equals("login")&& cookie.getValue().equals("true")){ return "恭喜登录成功"; } } return "您必须，携带Cookies信息才能登录"; } }

4、需要带参数的Get请求方法一：

/** * 带参数的get请求方法1 * */ @RequestMapping(value = "/get/with/param",method = RequestMethod.GET) public String getWithParam(@RequestParam String start, @RequestParam String end){ return "恭喜登录成功"; } /** * 带参数的get请求方法二 * */ @RequestMapping(value = "/get/with/param/{start}/{end}",method = RequestMethod.GET) public String getWithParamMethod2(@PathVariable Integer start, @PathVariable Integer end){ return "恭喜登录成功了"; }