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玩转spring boot 快速开始（1）

2017-01-04 09:19 585 查看

开发环境：

IED环境：Eclipse

JDK版本：1.8

maven版本：3.3.9　　

一、创建一个spring boot的mcv web应用程序

打开Eclipse，新建Maven项目

选择quickstart模板

完成Maven项目的创建

参照spring的官方例子：http://spring.io/guides/gs/testing-web/

在pom.xml增加maven依赖

<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>com.github.carter659</groupId>
<artifactId>spring01</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring01</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

添加一个控制器文件“HomeController.java”

package com.github.carter659.spring01;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class HomeController {
@RequestMapping("/")
public @ResponseBody String index() {
return "你好，这是第一个spring boot应用";
}
}

修改App.java文件

package com.github.carter659.spring01;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}

在App.java文件处，点击右键Run As运行java程序

当控制台处显示运行结果后

在浏览器输入“http://localhost:8080/”网站访问第一个spring boot的应用

二、我们如何对spring boot做单元测试？

pom.xml中增加单元测试的依赖

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>

在src/test/java中新建测试类“HttpRequestTest.java”

package com.github.carter659.spring01;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.embedded.LocalServerPort;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class HttpRequestTest {
@LocalServerPort
private int port;
@Autowired
private TestRestTemplate restTemplate;
@Test
public void greetingShouldReturnDefaultMessage() throws Exception {
assertThat(this.restTemplate.getForObject("http://localhost:" + port + "/",
String.class)).contains("你好，这是第一个spring boot应用");
}
}