一、基础项目构建，引入web模块，完成一个简单的RESTful API

一、Spring Boot的主要优点：

• 为所有Spring开发者更快的入门
• 开箱即用，提供各种默认配置来简化项目配置
• 内嵌式容器简化Web项目
• 没有冗余代码生成和XML配置的要求

 

二、使用maven构建项目

1.访问官网：

http://start.spring.io/

  选择基本的构建工具。

2.点击

Generate Project

下载项目压缩包。

3.解压项目包，并用ecplise以

Maven

项目导入

1. 菜单中选择

   File

   –>

   New

   –>

   Project from Existing Sources...

2. 选择解压后的项目文件夹，点击

   OK

3. 点击

   Import project from external model

   并选择

   Maven

   ，点击

   Next

   到底为止。
4. 若你的环境有多个版本的JDK，注意到选择

   Java SDK

   的时候请选择

   Java 7

   以上的版本

 

 三、项目结构解析

通过上面步骤完成了基础项目的创建，Spring Boot的基础结构共三个文件（具体路径根据用户生成项目时填写的Group所有差异）：

• src/main/java

  下的程序入口：

  Chapter1Application

• src/main/resources

  下的配置文件：

  application.properties

• src/test/

  下的测试入口：

  Chapter1ApplicationTests

package com.didispace;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;

@SpringBootApplication
public class Chapter1Application extends SpringBootServletInitializer{

public static void main(String[] args) {
SpringApplication.run(Chapter1Application.class, args);
}
@Override//为了打包springboot项目
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(this.getClass());
}
}

Chapter1Application

server.port=8080

application.properties

package com.didispace;

import com.didispace.web.HelloController;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.http.MediaType;
import org.springframework.mock.web.MockServletContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

import static org.hamcrest.Matchers.equalTo;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = MockServletContext.class)
@WebAppConfiguration
public class Chapter1ApplicationTests {

private MockMvc mvc;

@Before
public void setUp() throws Exception {
mvc = MockMvcBuilders.standaloneSetup(new HelloController()).build();
}

@Test
public void getHello() throws Exception {
mvc.perform(MockMvcRequestBuilders.get("/hello").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(content().string(equalTo("Hello World")));
}

}

Chapter1ApplicationTests

生成的

Chapter1Application

和

Chapter1ApplicationTests

类都可以直接运行来启动当前创建的项目，由于目前该项目未配合任何数据访问或Web模块，程序会在加载完Spring之后结束运行。

 

四、引入web模块

当前的

pom.xml

内容如下，仅引入了两个模块：

• 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

<?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>

<groupId>com.didispace</groupId>
<artifactId>Chapter1</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>

<name>Chapter1</name>
<description>The first Spring Boot project</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>

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

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

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

</dependencies>

<build>
<defaultGoal>compile</defaultGoal>
<sourceDirectory>src</sourceDirectory>
<finalName>springboot-package</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.didispace.Chapter1Application</mainClass>
<skipTests>true</skipTests>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>

</plugins>
</build>

</project>

pom.xml

 

五、编写服务

package com.didispace.web;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

@RequestMapping("/hello")
public String index() {
return "Hello World";
}

}

HelloController

 启动主程序，打开浏览器访问

http://localhost:8080/hello

，可以看到页面输出

Hello World

 

六、编写单元测试用例

package com.didispace;

import com.didispace.web.HelloController;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.http.MediaType;
import org.springframework.mock.web.MockServletContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

import static org.hamcrest.Matchers.equalTo;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = MockServletContext.class)
@WebAppConfiguration
public class Chapter1ApplicationTests {

private MockMvc mvc;

@Before
public void setUp() throws Exception {
mvc = MockMvcBuilders.standaloneSetup(new HelloController()).build();
}

@Test
public void getHello() throws Exception {
mvc.perform(MockMvcRequestBuilders.get("/hello").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(content().string(equalTo("Hello World")));
}

}

Chapter1ApplicationTests

 

转载于:https://www.cnblogs.com/liandy001/p/11271276.html

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