Spring Boot + MyBatis 多模塊項目搭建教程
作者 | 楓本非凡
鏈接 | cnblogs.com/orzlin/p/9717399.html
一、前言
1、開發(fā)工具及系統(tǒng)環(huán)境
IDE：IntelliJ IDEA 2018.2
系統(tǒng)環(huán)境：mac OSX
2、項目目錄結(jié)構(gòu)
biz層：業(yè)務(wù)邏輯層
dao層：數(shù)據(jù)持久層
web層：請求處理層
二、搭建步驟
1、創(chuàng)建父工程
2、創(chuàng)建子模塊
@SpringBootApplicationpublic class BetaWebApplication {public static void main(String[] args) {SpringApplication.run(BetaWebApplication.class, args);}}
@RestController@RequestMapping()public class DemoController {public String test() {return "Hello World!";}}
4、配置模塊間的依賴關(guān)系
<dependencyManagement><dependencies><dependency><groupId>com.yibao.beta</groupId><artifactId>beta-biz</artifactId><version>${beta.version}</version></dependency><dependency><groupId>com.yibao.beta</groupId><artifactId>beta-dao</artifactId><version>${beta.version}</version></dependency><dependency><groupId>com.yibao.beta</groupId><artifactId>beta-web</artifactId><version>${beta.version}</version></dependency></dependencies></dependencyManagement>
<dependencies><dependency><groupId>com.yibao.beta</groupId><artifactId>beta-biz</artifactId></dependency></dependencies>
<dependencies><dependency><groupId>com.yibao.beta</groupId><artifactId>beta-dao</artifactId></dependency></dependencies>
public interface DemoService {String test();}
@Servicepublic class DemoServiceImpl implements DemoService {public String test() {return "test";}}
package com.yibao.beta.web.controller;@RequestMapping()public class DemoController {private DemoService demoService;public String test() {return demoService.test();}}
***************************APPLICATION FAILED TO START***************************Description:Field demoService in com.yibao.beta.web.controller.DemoController required a bean of type 'com.yibao.beta.biz.service.DemoService' that could not be found.Action:Consider defining a bean of type 'com.yibao.beta.biz.service.DemoService' in your configuration.
package com.yibao.beta.web;@SpringBootApplication(scanBasePackages = )@MapperScan()public class BetaWebApplication {public static void main(String[] args) {SpringApplication.run(BetaWebApplication.class, args);}}
6. 集成Mybatis
dependencyManagement><dependencies><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.3.2</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.16.22</version></dependency></dependencies></dependencyManagement>
<dependencies><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency></dependencies>
spring.datasource.driverClassName = com.mysql.jdbc.Driverspring.datasource.url = jdbc:mysql://192.168.1.1/test?useUnicode=true&characterEncoding=utf-8spring.datasource.username = testspring.datasource.password = 123456mybatis.mapper-locations = classpath:mybatis/*.xmlmybatis.type-aliases-package = com.yibao.beta.dao.entity
package com.yibao.beta.biz.service.impl;@Servicepublic class DemoServiceImpl implements DemoService {private UserMapper userMapper;public String test() {UserDO user = userMapper.selectByPrimaryKey(1);return user.toString();}}
APPLICATION FAILED TO START***************************Description:Field userMapper in com.yibao.beta.biz.service.impl.DemoServiceImpl required a bean of type 'com.yibao.beta.dao.mapper.UserMapper' that could not be found.Action:Consider defining a bean of type 'com.yibao.beta.dao.mapper.UserMapper' in your configuration.
package com.yibao.beta.web;@SpringBootApplication(scanBasePackages = )@MapperScan()public class BetaWebApplication {public static void main(String[] args) {SpringApplication.run(BetaWebApplication.class, args);}}
四、總結(jié)
五、未提到的坑
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