失眠网 > 基于Springboot外卖系统03：pom.xml导入依赖+数据库配置文件+Boot启动类+静态资源映射

基于Springboot外卖系统03：pom.xml导入依赖+数据库配置文件+Boot启动类+静态资源映射

时间：2019-10-24 00:29:08

1).在pom.xml中导入依赖

<?xml version="1.0" encoding="UTF-8"?><project xmlns="/POM/4.0.0"xmlns:xsi="/2001/XMLSchema-instance"xsi:schemaLocation="/POM/4.0.0 /xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.4.5</version><relativePath/> </parent><groupId>com.itheima</groupId><artifactId>reggie_take_out</artifactId><version>1.0-SNAPSHOT</version><properties><java.version>1.8</java.version><piler.source>8</piler.source><piler.target>8</piler.target></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><scope>compile</scope></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.4.2</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.20</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.76</version></dependency><dependency><groupId>commons-lang</groupId><artifactId>commons-lang</artifactId><version>2.6</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.23</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.4.5</version></plugin></plugins></build></project>

2 在工程的resources目录下创建application.yml文件,并引入配置

server:# 端口设计port: 8080spring:application:# 应用名称（可选）name: reggie_take_outdatasource:# 数据集druid:driver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://localhost:3306/rejie?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=trueusername: rootpassword: 123456mybatis-plus:configuration:#在映射实体或者属性时，将数据库中表名和字段名中的下划线去掉，按照驼峰命名法映射map-underscore-to-camel-case: truelog-impl: org.apache.ibatis.logging.stdout.StdOutImplglobal-config:db-config:# ID生成策略：ASSIGN_ID:可以在分布式的情况下使用，生成的是Long类型的数字，可以排序性能也高，但是生成的策略和服务器时间有关，如果修改了系统时间就有可能导致出现重复主键id-type: ASSIGN_ID

3 创建包 com.waimaige.rejie , 并编写启动类

package com.waimaige.rejie;import lombok.extern.slf4j.Slf4j;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@Slf4j //是lombok中提供的注解, 用来通过slf4j记录日志。@SpringBootApplication // 启动类public class ReggieApplication {/**@Description: 当搭建完上述的基础环境之后, 就可以通过引导类, 启动该项目。* @param* @return* @version v1.0* @author LiBiGo* @date /8/12 0:23*/public static void main(String[] args) {SpringApplication.run(ReggieApplication.class,args);log.info("项目启动成功............");}}

4 静态资源导入与外部访问实现

4.1 外部资源导入

4.2 创建配置类WebMvcConfig，设置静态资源映射

4.2.1 静态映射的原因

用于在Springboot项目中, 默认静态资源的存放目录为 : "classpath:/resources/", "classpath:/static/", "classpath:/public/" ; 而在我们的项目中静态资源存放在 backend, front 目录中, 那么这个时候要想访问到静态资源, 就需要设置静态资源映射。

4.2.2 静态映射代码

package com.itheima.reggie.config;import lombok.extern.slf4j.Slf4j;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;//配置类@Slf4j@Configurationpublic class WebMvcConfig extends WebMvcConfigurationSupport {/**@Description: 设置静态资源的映射* @param * @return* @version v1.0* @author LiBiGo* @date /8/11 23:41*/@Overrideprotected void addResourceHandlers(ResourceHandlerRegistry registry) {log.info("静态资源开始映射......");registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");log.info("静态资源映射成功");}}