本文介绍 Springboot 的简单应用,最近什么分布式,微服务很受欢迎,本文介绍的Springboot 就是在微服务中使用的微框架。根据官方介绍 Springboot 是简化了Spring的,不需要定义配置模板,Spring Boot致力于在蓬勃发展的快速应用开发领域(rapid application development)成为领导者。具体介绍去官网了解。
需要工具:
maven。eclipse
Springboot 是自带tomcat的,不要另外配置
entity:
public class User { private String id; private String username; get set....
这里只是简单介绍使用没有使用到数据库 直接Controller层展示假数据
Controller
import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.zw.mySpringboot.entity.User; @ComponentScan @Configuration @RestController @RequestMapping("/user") //@EnableAutoConfiguration public class UserController { @RequestMapping("/{id}") public User getUser(@PathVariable String id){ User user = new User(); user.setId(id); user.setUsername("id==="+Math.random()); return user; } }使用很简单
MainApp
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer; import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.zw.mySpringboot.controller.UserController; @RestController @SpringBootApplication @EnableAutoConfiguration public class MainApplication implements EmbeddedServletContainerCustomizer{ /** * 设置端口 */ @Override public void customize(ConfigurableEmbeddedServletContainer container) { container.setPort(8011); } public static void main(String[] args) { SpringApplication.run(MainApplication.class, args); } /* @RequestMapping("/main") public String testPort(){ return "Hello 端口8011......"; }*/ }上述有修改端口的代码 默认是8080 这里使用的是tamcat内置的服务
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>mySpringboot</groupId> <artifactId>mySpringboot</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>mySpringboot</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>1.4.0.BUILD-SNAPSHOT</version> </parent> <!-- Add typical dependencies for a web application --> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- mybatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.21</version> </dependency> </dependencies> <!-- Package as an executable jar --> <build> <plugins> <!-- <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> --> <!-- Maven Assembly Plugin --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.4.1</version> <configuration> <!-- get all project dependencies --> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> <!-- MainClass in mainfest make a executable jar --> <archive> <manifest> <mainClass>org.zw.mySpringboot.App</mainClass> </manifest> </archive> </configuration> <executions> <execution> <id>make-assembly</id> <!-- bind to the packaging phase --> <phase>package</phase> <goals> <goal>single</goal> </goals> </execution> </executions> </plugin> </plugins> </build> <!-- Add Spring repositories --> <!-- (you don't need this if you are using a .RELEASE version) --> <repositories> <repository> <id>spring-snapshots</id> <url>http://repo.spring.io/snapshot</url> <snapshots><enabled>true</enabled></snapshots> </repository> <repository> <id>spring-milestones</id> <url>http://repo.spring.io/milestone</url> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>spring-snapshots</id> <url>http://repo.spring.io/snapshot</url> </pluginRepository> <pluginRepository> <id>spring-milestones</id> <url>http://repo.spring.io/milestone</url> </pluginRepository> </pluginRepositories> </project>运行:
运行MainApp中的mian方法有以下结果
如果出现上述没有保存错,既可以访问页面了
一个简单的案例就ok了,如果有请加上面qq群联系,谢谢阅读
代码下载:http://download.csdn.net/detail/u010982856/9739812