SpringBoot 程序开发(一)

1.1、建立统一父pom管理

<!-- 
    1、引入springboot 
    2、spring-boot-starter-parent父依赖启动器的主要作用是进行版本统一管理
-->
<parent>
    <artifactId>spring-boot-parent</artifactId>
    <groupId>org.springframework.boot</groupId>
    <version>1.5.9.RELEASE</version>
</parent>

追加完整配置

<?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.spring</groupId>
    <artifactId>springboot-demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <parent>
        <artifactId>spring-boot-parent</artifactId>
        <groupId>org.springframework.boot</groupId>
        <version>1.5.9.RELEASE</version>
    </parent>
    <properties>
        <jdk.version>1.8</jdk.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>${jdk.version}</source>
                    <target>${jdk.version}</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

spring-boot-starter-web

spring-boot-starter-web依赖启动器的主要作用是提供Web开发场景所需的底层所有依赖。

1-1.png

Resources下新建application.yml文件

#设置tomcat启动端口
server:
  port: 8081

编写第一个接口

package com.spring.controller;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;


/**
 * @author: dalyJiang
 * @date: 2021/12/6  21:13
 * @version: 1.0
 */
@Controller                   //控制器注解
@EnableAutoConfiguration      //启动自动配置
public class DemoController {
    @GetMapping("/get")    //设置访问路径
    @ResponseBody             //设置Restful返回形式
    public String geuIndex(){
        return "baidu.com";
    }

    public static void main(String[] args) {    //Springboot启动程序
        SpringApplication.run(DemoController.class, args);    
    }
}

1.2、SpringBoot测试程序

在程序开发完成后，需对程序的功能进行测试，这时需要启动spring容器。可以利用SpringBoot提供的依赖包实现控制层方法测试。

引入相应依赖

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <!-- 只能在src/test包下面
   <scope>test</scope>  
   -->
</dependency>

编写测试类

package com.spring.controller;

import junit.framework.TestCase;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;

/**
 * @author: dalyJiang
 * @date: 2021/12/8  23:01
 * @version: 1.0
 */
@SpringBootTest(classes = DemoController.class)  //定义要测试的Springboot类
@RunWith(SpringJUnit4ClassRunner.class)     //使用JUnit进行测试
@WebAppConfiguration    //进行web应用配置
public class TestDemoController {
    @Autowired
    private DemoController demoController;  //注入控制器对象
    @Test
    public void testHome(){  //使用JUnit测试
        TestCase.assertEquals(this.demoController.getIndex(),"baidu.com");
    }
}

引用文献

[1] Java微服务架构实战 ------李兴华

最后编辑于：2021.12.16 13:07:08