Spring boot 入门
maven构建项目
1、访问http://start.spring.io/
2、选择构建工具Maven Project、Spring Boot版本1.3.6以及一些工程基本信息,点击“Switch to the full version.”
3、点击Generate Project下载项目压缩包
4、解压后,使用eclipse,Import -> Existing Maven Projects -> Next ->选择解压后的文件夹-> Finsh,OK done!
项目结构介绍
引入web模块
1、pom.xml中添加支持web的模块:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency>
pom.xml文件中默认有两个模块:
spring-boot-starter:核心模块,包括自动配置支持、日志和YAML;
spring-boot-starter-test:测试模块,包括JUnit、Hamcrest、Mockito。
2、编写controller内容
@RestController public class HelloWorldController { @RequestMapping("/toIndex") public String index() { return "Hello World"; } }
@RestController的意思就是controller里面的方法都以json格式输出,不用再写什么jackjson配置的了!
3、启动主程序,打开浏览器访问http://localhost:8080/hello,就可以看到效果了,有木有很简单!
如何做单元测试
结束!
第一天配置文件
1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4 <modelVersion>4.0.0</modelVersion> 5 6 <groupId>com.example</groupId> 7 <artifactId>demo</artifactId> 8 <version>0.0.1-SNAPSHOT</version> 9 <packaging>jar</packaging> 10 11 <name>demo</name> 12 <description>Demo project for Spring Boot</description> 13 14 <parent> 15 <groupId>org.springframework.boot</groupId> 16 <artifactId>spring-boot-starter-parent</artifactId> 17 <version>2.1.0.RELEASE</version> 18 <relativePath/> <!-- lookup parent from repository --> 19 </parent> 20 21 <properties> 22 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 23 <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 24 <java.version>1.8</java.version> 25 </properties> 26 27 <dependencies> 28 <!--核心配置 --> 29 <dependency> 30 <groupId>org.springframework.boot</groupId> 31 <artifactId>spring-boot-starter</artifactId> 32 </dependency> 33 <!--测试配置 --> 34 <dependency> 35 <groupId>org.springframework.boot</groupId> 36 <artifactId>spring-boot-starter-test</artifactId> 37 <scope>test</scope> 38 </dependency> 39 <!-- 增加web支持 --> 40 <dependency> 41 <groupId>org.springframework.boot</groupId> 42 <artifactId>spring-boot-starter-web</artifactId> 43 </dependency> 44 <!-- 热启动 --> 45 <dependency> 46 <groupId>org.springframework.boot</groupId> 47 <artifactId>spring-boot-devtools</artifactId> 48 <optional>true</optional> 49 50 </dependency> 51 </dependencies> 52 53 <build> 54 <plugins> 55 <plugin> 56 <groupId>org.springframework.boot</groupId> 57 <artifactId>spring-boot-maven-plugin</artifactId> 58 <configuration> 59 <fork>true</fork> 60 </configuration> 61 </plugin> 62 </plugins> 63 </build> 64 65 66 </project>