Spring Boot 系列分享一[搭建基本应用]

﹏ヽ暗。殇╰゛Y 2023-07-20 12:14 13阅读 0赞

# Spring Boot 系列分享一\[搭建基本应用\] #

### 1. 环境说明 ###

*  开发工具: idea
 *  构建工具: gradle
 *  springboot版本: 2.0.1
 *  jdk版本: 1.8

### 2. 新建项目 ###

在idea中新建gradle项目，填写GroupId和ArtifactId后下一步。然后使用默认设置再下一步。

![new\_project\_gradle][new_project_gradle]

![gradle\_idea\_conf][gradle_idea_conf]

### 3. 新建module ###

![idea\_new\_module][idea_new_module]\*\*

然后也是填写信息，下一步就建好了。此处新建了一个luck-web模块。

### 4. 配置build.gradle ###

先配置主目录下的build.gradle

// gradle脚本资源配置
    buildscript {
        // 脚本资源搜索仓库
        repositories {
            maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
            jcenter()
            mavenCentral()
        }
        // 插件依赖
        dependencies {
            classpath('io.spring.gradle:dependency-management-plugin:1.0.6.RELEASE')
        }
    }
    
    // 全局配置
    allprojects {
    
        group = 'com.github.nan'
        version = '1.0.0-SNAPSHOT'
    
        // 声明常量, spring-boot版本
        ext {
            SPRING_BOOT_VERSION = '2.0.1.RELEASE'
        }
    
        // 项目所需的资源搜索仓库
        repositories {
            maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
            jcenter()
            mavenCentral()
            mavenLocal()
            /*
            // 配置私服
            maven {
                url '****'
                credentials {
                    username '****'
                    password '****'
                }
            }
            */
        }
    }
    
    // 子模块配置
    subprojects {
        // 使用java插件
        apply plugin: 'java'
        // 使用spring的依赖管理插件
        apply plugin: 'io.spring.dependency-management'
    
        // 配置java编码和jdk版本号
        compileJava.options.encoding = "UTF-8"
        compileTestJava.options.encoding = "UTF-8"
        sourceCompatibility = 1.8
    
        // 子模块脚本资源配置
        buildscript {
            repositories {
                maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
                jcenter()
                mavenCentral()
            }
        }
    }

然后配置子模块下\[luck-web\]的build.gradle

buildscript {
    
        dependencies {
            // 使用spring-boot-gradle-plugin
            classpath("org.springframework.boot:spring-boot-gradle-plugin:${SPRING_BOOT_VERSION}")
        }
    }
    
    apply plugin: 'org.springframework.boot'
    
    dependencies {
        // spring-boot
        compile("org.springframework.boot:spring-boot-starter-web:${SPRING_BOOT_VERSION}")
    
        testCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: SPRING_BOOT_VERSION
    }

都配置好后，在idea弹出框中点击import change更新配置。或者点击右侧栏里gradle的刷新按钮

![gradle\_refresh][gradle_refresh]

点击之后会自动进行相关依赖下载

### 5. 配置application.yml ###

子模块luck-web的resources下新建application.yml

spring:
      http:
        encoding:
          charset: UTF-8
          force: true
          enabled: true
      messages:
        encoding: UTF-8
      jackson:
        default-property-inclusion: non_null
        date-format: yyyy-MM-dd HH:mm:ss
    
    server:
      port: 8080
      tomcat:
        uri-encoding: utf-8
        # 10M
        max-http-post-size: 10240000
      # 开启gzip压缩
      compression:
        enabled: true
        mime-types: application/javascript,text/css,application/json,application/xml,text/html,text/xml,text/plain,text/javascript,image/png,image/jpeg,image/jpg
        min-response-size: 2048

### 6. 创建启动类 ###

package com.github.nan.web;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /** * @author nan * @version 1.0 * @date 11:25 2019/7/1 */
    @SpringBootApplication(scanBasePackages = "com.github.nan")
    public class WebApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(WebApplication.class, args);
        }
    
    }

### 7. 创建controller ###

package com.github.nan.web.controller;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RestController;
    
    /** * @author nan * @version 1.0 * @date 11:28 2019/7/1 */
    @RestController
    public class HelloController { 
    
        @RequestMapping(value = "/luck/", method = RequestMethod.GET)
        public String helloWorld() { 
            return "hello world, welcome to spring boot";
        }
    }

### 8. 测试服务 ###

启动应用程序

打开浏览器，访问[http://localhost:8080/luck/][http_localhost_8080_luck] 即可看到输出

hello world, welcome to spring boot

### 9. gitignore配置 ###

如果建立了git仓库，注意添加.gitignore文件。

# Created by .ignore support plugin (hsz.mobi)
    ### Java template
    # Compiled class file
    *.class
    
    # Log file
    *.log
    
    # BlueJ files
    *.ctxt
    
    # Mobile Tools for Java (J2ME)
    .mtj.tmp/
    
    # Package Files #
    *.jar
    *.iml
    *.war
    *.nar
    *.ear
    *.zip
    *.tar.gz
    *.rar
    
    # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
    hs_err_pid*
    
    # 注意加以下三行
    .idea
    .gradle
    !/gradle/wrapper/gradle-wrapper.jar

### 10. 关闭gradle代理运行 ###

idea配置。如下图，不要勾选build/run代理给gradle。运行test时使用平台的Runner。

否则可能会出一些奇怪的问题。

![gradle\_delegate][gradle_delegate]

git地址： [https://gitee.com/wnp\_yx/goodluck][https_gitee.com_wnp_yx_goodluck]

[new_project_gradle]: /images/20230528/d0ef3d7c30f94fbb8dfb14ec7d471b05.png
[gradle_idea_conf]: /images/20230528/925b4f271aa541e991f7cc2756524b2c.png
[idea_new_module]: /images/20230528/aa96d013fcca4065adfba37d1b9511e2.png
[gradle_refresh]: /images/20230528/4b4aaf8146294766b9daea51b521c85b.png
[http_localhost_8080_luck]: http://localhost:8080/luck/
[gradle_delegate]: /images/20230528/9e29a510894649baa140283ee965ea4a.png
[https_gitee.com_wnp_yx_goodluck]: https://gitee.com/wnp_yx/goodluck