import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController;@RestController public class HelloController {@RequestMapping("/echo")public String echo(String msg) {return "【ECHO】" + msg;}@RequestMapping("/")public String home() {return "www.baidu.com";} }http://localhost:8080/echo?msg=hello package com.microboot.controller;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;@RestController public class HelloController {@RequestMapping(value="/echo/{message}",method=RequestMethod.GET)public String echo(@PathVariable("message")String msg) {return "【ECHO】" + msg;}@RequestMapping("/")public String home() {return "www.baidu.com";} }http://localhost:8080/echo/hello <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>bootfirst</groupId><artifactId>bootfirst</artifactId><version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.12.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><thymeleaf.version>3.0.9.RELEASE</thymeleaf.version><thymeleaf-layout-dialect.version>2.3.0</thymeleaf-layout-dialect.version><!-- 布局功能的支持程序 thymeleaf3主程序 layout2以上版本 --><!-- thymeleaf2 layout1 --><thymeleaf-layout-dialect.version>2.2.2</thymeleaf-layout-dialect.version></properties> <dependencies><dependency><!-- 引入web模塊 --><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId></dependency><!-- 熱部署方法1spring boot devtools 依賴包. --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><optional>true</optional><scope>true</scope></dependency><!-- 熱部署方法2--><dependency><groupId>org.springframework</groupId><artifactId>springloaded</artifactId></dependency></dependencies><!-- 這個插件,可以將應用打包成一個可執行的jar包 --><build><finalName>bootfirst</finalName><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project> package com.microboot.controller;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;@RestController public class HelloController {@RequestMapping(value="/echo/{message}",method=RequestMethod.GET)public String echo(@PathVariable("message")String msg) {return "【ECHO】" + msg;}@RequestMapping("/mul")public Object mul(int num) {return num * 2;}@RequestMapping("/")public String home() {return "www.baidu.com";} }http://localhost:8080/mul?num=20 package com.microboot.controller;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;@RestController public class HelloController {@RequestMapping(value="/echo/{message}",method=RequestMethod.GET)public String echo(@PathVariable("message")String msg) {return "【ECHO】" + msg;}@RequestMapping("/mul")public Object mul(int num) {return num * 5;}@RequestMapping("/")public String home() {return "www.baidu.com";} }

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