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。