spring boot 入门
一、项目创建
1.1、文件目录说明
- src/main/java:主要java代码
- src/main/resources:配置文件目录
- src/test:单元测试目录
二、maven配置文件
<?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>
<packaging>jar</packaging>
<groupId>spring-boot-01</groupId>
<artifactId>spring-boot-01</artifactId>
<version>1.0-SNAPSHOT</version>
<name>spring-boot-01</name>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.7.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
2.1、说明
- jar:spring boot中的web模块依赖嵌入了tomcat,使的jar包具备了web能力
- spring-boot-starter-parent:定义了版本为1.3.7,定义了spring boot的基础依赖以及一些默认配置
- spring-boot-starter-web:全栈web开发模块,内部嵌入了Tomcat,SpringMVC
- spring-boot-starter-test:通用测试模块,包含Junit,Hamcrest,Mockito
三、创建HelloApplication
@SpringBootApplication
public class HelloApplication {
public static void main(String[] args) {
SpringApplication.run(HelloApplication.class, args);
}
}
3.1、代码说明
- @SpringBootApplication:当前项目为springBoot项目
四、创建HelloController
@RestController
public class HelloController {
@RequestMapping("/index")
public String index() {
return "hello data";
}
}
4.1、代码说明
- @RestController:Controller类
- @RequestMapping(“/index”):接口的请求地址为基本地址+/index
4.2、测试
五、测试
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = HelloApplication.class)
@WebAppConfiguration
public class HelloControllerTest {
private MockMvc mvc;
@Before
public void setUp() throws Exception {
mvc = MockMvcBuilders.standaloneSetup(new HelloController()).build();
}
@Test
public void index() {
}
}
5.1、代码说明
- @RunWith(SpringJUnit4ClassRunner.class):引入spring对junit4的支持
- @SpringApplicationConfiguration(classes = HelloApplication.class):指定spring boot的启动类
- @WebAppConfiguration 开启web用于的配置用于模拟servletContext
- MockMvc:用于模拟调用controller的接口发起请求
- Before:junit中定义在测试用例Test内容执行前预加载的内容