IDEA创建SpringBoot的多模块项目教程
最近在写一个多模块的SpringBoot项目,基于过程总了一些总结,故把SpringBoot多个模块的项目创建记录下来。
首先,先建立一个父工程:
(1)在IDEA工具栏选择File->New->Project
(2)选择Spring Initializr,默认选择Default,然后点击Next:
(3)在输入框填写以下截图内容,点击Next
(4)直接点Next,无需选择
(5)直接点击Finish完成创建
(6)按照以上步骤,可以生成以下的项目目录结构:
(7)这时把没用的.mvn目录,src目录,mvnw还有mvnw.cmd都删除,最终只保留.gitignore和pom.xml,若是web项目,可在该pom.xml里添加以下依赖:
1 <!--web特征--> 2 <dependency> 3 <groupId>org.springframework.boot</groupId> 4 <artifactId>spring-boot-starter-web</artifactId> 5 <version>2.3.1.RELEASE</version> 6 </dependency>
最终得到以下的父结构目录:
以上是创建父模块,下面创建子模块:
(1)在父模块的根目录fte上点右键,在弹出的框里选择New->Module
(2)选择Maven,点击Next
(3)填写以下内容,点击Next
(4)填写Module,点击Finish
(5)同理添加fte-controller,fte-dao,fte-service,fte-web,最终得到以下的目录结构:
(6)增加模块之间的依赖:
controller层添加以下依赖:
1 <dependencies> 2 <dependency> 3 <groupId>com.example</groupId> 4 <artifactId>fte-common</artifactId> 5 <version>0.0.1-SNAPSHOT</version> 6 </dependency> 7 8 <dependency> 9 <groupId>com.example</groupId> 10 <artifactId>fte-dao</artifactId> 11 <version>0.0.1-SNAPSHOT</version> 12 </dependency> 13 14 <dependency> 15 <groupId>com.example</groupId> 16 <artifactId>fte-service</artifactId> 17 <version>0.0.1-SNAPSHOT</version> 18 </dependency> 19 </dependencies>
service层添加以下依赖:
1 <dependencies> 2 <dependency> 3 <groupId>com.example</groupId> 4 <artifactId>fte-dao</artifactId> 5 <version>0.0.1-SNAPSHOT</version> 6 </dependency> 7 </dependencies>
(7)测试
在fte-controller创建com.zhu.fte.web包,增加以下两个类:
fteWebApplication类:
1 package com.zhu.fte.web; 2 3 import org.springframework.boot.SpringApplication; 4 import org.springframework.boot.autoconfigure.SpringBootApplication; 5 6 @SpringBootApplication 7 public class fteWebApplication { 8 public static void main(String[] args) { 9 SpringApplication.run(fteWebApplication.class,args); 10 } 11 }
DemoController类
1 package java.com.zhu.fte.web; 2 3 import org.springframework.web.bind.annotation.GetMapping; 4 import org.springframework.web.bind.annotation.RequestMapping; 5 import org.springframework.web.bind.annotation.RestController; 6 7 @RestController 8 @RequestMapping("demo") 9 public class DemoController { 10 11 @GetMapping("test") 12 public String test(){ 13 return "hello world"; 14 } 15 16 }
运行发现出现错误:
出现错误:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project fte-common: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test failed: Plugin org.apache.maven.plugins:maven-surefire-plugin:2.22.2 or one of its dependencies could not be resolved: Could not transfer artifact junit:junit:jar:4.12 from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.52.215] failed: Connection timed out: connect -> [Help 1]
把缺少的org.apache.maven.plugins手动放到父工程的pom.xml里
1 <build> 2 <plugins> 3 <plugin> 4 <groupId>org.apache.maven.plugins</groupId> 5 <artifactId>maven-clean-plugin</artifactId> 6 <version>2.5</version> 7 </plugin> 8 <plugin> 9 <groupId>org.apache.maven.plugins</groupId> 10 <artifactId>maven-source-plugin</artifactId> 11 <version>2.2</version> 12 </plugin> 13 <plugin> 14 <groupId>org.apache.maven.plugins</groupId> 15 <artifactId>maven-compiler-plugin</artifactId> 16 <version>3.0</version> 17 <configuration> 18 <source>1.8</source> 19 <target>1.8</target> 20 <encoding>${file.encoding}</encoding> 21 <!--编译的时候方法不改变方法参数名称,用于支持使用反射获取方法参数名称--> 22 <compilerArgument>-parameters</compilerArgument> 23 </configuration> 24 </plugin> 25 <plugin> 26 <groupId>org.apache.maven.plugins</groupId> 27 <artifactId>maven-install-plugin</artifactId> 28 <version>2.4</version> 29 </plugin> 30 <plugin> 31 <groupId>org.apache.maven.plugins</groupId> 32 <artifactId>maven-jar-plugin</artifactId> 33 <version>2.4</version> 34 <configuration> 35 <archive> 36 <manifest> 37 <addDefaultImplementationEntries>true 38 </addDefaultImplementationEntries> 39 </manifest> 40 </archive> 41 </configuration> 42 </plugin> 43 44 <plugin> 45 <groupId>org.apache.maven.plugins</groupId> 46 <artifactId>maven-surefire-plugin</artifactId> 47 <version>2.13</version> 48 <configuration> 49 <argLine>-Xmx512M -Dfile.encoding=${file.encoding}</argLine> 50 </configuration> 51 </plugin> 52 </plugins> 53 </build>
运行fteWebApplication类里的main方法,默认端口为8080,访问http://localhost:8080/demo/test,正常出现以下情况:
按照以上步骤,就可以初步建立SpringBoot多模块的项目,下一章将基于这个基础搭建Mybatis以及其逆向工程。