SpringBoot学习：IDEA中快速搭建springboot项目

淡淡的烟草味﹌ 2022-06-18 13:07 358阅读 0赞

项目下载地址：http://download.csdn.net/detail/aqsunkai/9805821

（一）IDEA中创建maven web项目

![Center][]![Center 1][]![Center 2][]

创建好项目后设置项目的编译路径：

![Center 3][]

（二）引入spring-boot项目所需的jar包：

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.RELEASE</version>
        <relativePath/>
      </parent>
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-boot.version>1.5.2.RELEASE</spring-boot.version>
      </properties>
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>3.8.1</version>
          <scope>test</scope>
        </dependency>
        
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot</artifactId>
          <version>${spring-boot.version}</version>
        </dependency>
        
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter</artifactId>
          <version>${spring-boot.version}</version>
        </dependency>
        
        
        
        
        
        
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
          <version>${spring-boot.version}</version>
          
        </dependency>
        
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-test</artifactId>
          <version>${spring-boot.version}</version>
        </dependency>
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-tomcat</artifactId>
          <version>${spring-boot.version}</version>
        </dependency>
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-actuator</artifactId>
          <version>${spring-boot.version}</version>
        </dependency>
      </dependencies>
      <build>
        <finalName>springBoot</finalName>
        <plugins>
          <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
          </plugin>
        </plugins>
      </build>

（三）配置文件、启动类：

项目路径如下：

![Center 4][]

application.yml配置文件中内容为：

#server
    server:
      # 项目contextPath，一般在正式发布版本中，我们不配置
      context-path: /boot
      # 该服务绑定IP地址，启动服务器时如本机不是该IP地址则抛出异常启动失败，只有特殊需求的情况下才配置
      #address: 192.168.0.101
      # 错误页，指定发生错误时，跳转的URL。请查看BasicErrorController源码便知
      error:
         path: /error
      # 服务端口
      port: 8080
      # session最大超时时间(分钟)，默认为30
      session:
        timeout: 60
      tomcat:
        # tomcat的URI编码
        uri-encoding: utf-8
        # tomcat最大线程数，默认为200
        max-threads: 1000
        # 存放Tomcat的日志、Dump等文件的临时文件夹，默认为系统的tmp文件夹（如：C:\Users\Shanhy\AppData\Local\Temp）
        basedir: G:/springboot-tomcat-tmp
        # 打开Tomcat的Access日志，并可以设置日志格式的方法：
        #server.tomcat.access-log-enabled=true
        #server.tomcat.access-log-pattern=

Application.java启动类如下,spring会扫描该类所在目录下的java类：

package com.sun;
    
    import org.springframework.boot.CommandLineRunner;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /**
     * @Configuration：标注此文件为一个配置项
     * @EnableAutoConfiguration：使用自动配置
     * @ComponentScan：可扫描的
     * @SpringBootApplication 包含上面三个
     * Application：启动管理器
     * Created by sun on 2017-1-14.
     */
    @SpringBootApplication
    public class Application implements CommandLineRunner {
    
        /* Servlet容器默认的Context路径是/
        DispatherServlet匹配的路径(servlet-mapping中的url-patterns)是*//*
        @ComponentScan路径被默认设置为SampleController的同名package，
        也就是该package下的所有@Controller，@Service, @Component, @Repository都会被实例化后并加入Spring Context中。*/
        public static void main(String[] args) {
            SpringApplication springApplication = new SpringApplication(Application.class);
            springApplication.run(args);
        }
    
        // springboot运行后此方法首先被调用
        // 实现CommandLineRunner抽象类中的run方法
        @Override
        public void run(String... args) throws Exception {
            System.out.println("项目启动完成！");
        }
    }

TestController类：

package com.sun.test.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    import javax.servlet.http.HttpServletRequest;
    
    /**
     * 测试类
     * Created by sun on 2017-1-14.
     */
    @Controller
    @RequestMapping("/test")
    public class TestController {
    
        @RequestMapping("/")
        @ResponseBody
        String test(HttpServletRequest req){
            return "Hello World!";
        }
    
    }

启动Application，在页面上输入http://localhost:8080/boot/test/ 页面上打印出Hello World!

[Center]: https://img-blog.csdn.net/20170407195133579?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvYXFzdW5rYWk=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 1]: https://img-blog.csdn.net/20170407195138220?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvYXFzdW5rYWk=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 2]: /images/20220618/30631ed90e144470bfa2e1ed3e36a8d5.png
[Center 3]: /images/20220618/37a2a9ae35d64cdfb73460db6f1f1fc1.png
[Center 4]: /images/20220618/23d14678976d47b1be3e17e48caa7f13.png