創建之前項目之前 記得改一下 maven 提高下載Pom速度

記得 setting 中要改 maven 改成 阿里云的。具體方法 網上查第一步 搭建parents 項目，為maven項目 ，不為springboot 項目 記得修改groupId

第二步 搭建多個子模塊， honor-dao honor-manager honor-common記得創建 honor-manager 的時候 要把他的gruopId 改成com.honor.manager

這里爆紅的原因是 因為 我做到后面然后忘記截屏了，返回來做。實際我已經創建了 ，所以這個步驟是對的。按照這個做法，創建 honor-dao honor-manager honor-common，記得創建 honor-manager 的時候 要把他的gruopId 改成com.honor.manager

第三步 在 honor-manager 下分別創建 honor-manager-fc（maven） honor-manager-user（maven） honor-manager-boot (springboot,記得要使用springboot創建)創建時候 有兩個坑 第一個是 父級 別選錯 。他一般會默認 選第一級別，就是 honor 但是我們要繼承的是 honor-manager第二個是路徑 別寫錯

第四步 開始對各大 Pom 進行整合 dao 中一般需要引入 common ，common 一般不需要引 其他模塊，然后呢 manager 中要同時引入dao 和 common第一個是 honor 父級的 pom

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <modelVersion>4.0.0</modelVersion> <groupId>com.honor</groupId> <artifactId>phone</artifactId> <packaging>pom</packaging> <version>1.0-SNAPSHOT</version> <modules> <module>honor-dao</module> <module>honor-common</module> <module>honor-manager</module> </modules> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.7.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <honor-common>1.0-SNAPSHOT</honor-common> <honor-dao>1.0-SNAPSHOT</honor-dao> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <skipTests>true</skipTests> <hutool.version>4.5.7</hutool.version> <swagger2.version>2.7.0</swagger2.version> <mybatis-generator.version>1.3.7</mybatis-generator.version> <mybatis.version>3.4.6</mybatis.version> <postgresql.version>42.2.12</postgresql.version> <spring-data-commons.version>2.1.5.RELEASE</spring-data-commons.version> <jjwt.version>0.9.0</jjwt.version> <aliyun-oss.version>2.5.0</aliyun-oss.version> <gson.version>2.8.5</gson.version> <log4j2.version>2.13.3</log4j2.version> <mybatis-plus.version>3.1.0</mybatis-plus.version> <activiti.version>6.0.0</activiti.version> <poi.version>4.1.2</poi.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions><!-- 去掉默認配置 --> <!--<exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </exclusion>--> <exclusion> <groupId>org.hibernate.validator</groupId> <artifactId>hibernate-validator</artifactId> </exclusion> <exclusion> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </exclusion> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </exclusion> </exclusions> </dependency> <!--<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency>--> <!-- 移除Tomcat之后會報錯，加入下面的依賴，使用外部容器 --> <!--<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency>--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>${log4j2.version}</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>${log4j2.version}</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-jul</artifactId> <version>${log4j2.version}</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>${log4j2.version}</version> <scope>compile</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter-api</artifactId> <version>5.5.0</version> <scope>test</scope> </dependency> <dependency> <groupId>com.honor</groupId> <artifactId>honor-common</artifactId> <version>${honor-common}</version> </dependency> <dependency> <groupId>com.honor</groupId> <artifactId>honor-dao</artifactId> <version>${honor-dao}</version> </dependency> <!--阿里巴巴連接池--> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.20</version> </dependency> <!--Swagger-UI API文檔生產工具--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>${swagger2.version}</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>${swagger2.version}</version> </dependency> <!-- MyBatis--> <!--<dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency>--> <!-- mybatis plus --> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>${mybatis-plus.version}</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-generator</artifactId> <version>${mybatis-plus.version}</version> </dependency> <!--mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> <version>8.0.13</version> </dependency> <!--SpringData工具包--> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-commons</artifactId> <version>${spring-data-commons.version}</version> </dependency> <!--JWT(Json Web Token)登錄支持--> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> <version>${jjwt.version}</version> </dependency> <!--Google的JSON解析工具--> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>${gson.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/net.sf.json-lib/json-lib --> <dependency> <groupId>net.sf.json-lib</groupId> <artifactId>json-lib</artifactId> <version>2.4</version> <classifier>jdk15</classifier> </dependency> <!-- https://mvnrepository.com/artifact/org.activiti/activiti-engine --> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-engine</artifactId> <version>${activiti.version}</version> <exclusions> <exclusion> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> </exclusion> </exclusions> </dependency> <!--沒有會引起mybaits plus通用mapper和activity的沖突--> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-spring-boot-starter-jpa</artifactId> <version>${activiti.version}</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>${poi.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml --> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>${poi.version}</version> </dependency> </dependencies> </dependencyManagement></project>

第二個是honor-common

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <parent> <artifactId>phone</artifactId> <groupId>com.honor</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>honor-common</artifactId> <dependencies> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-annotation</artifactId> <version>3.1.0</version> <scope>compile</scope> </dependency> </dependencies></project>

第三個是honor-dao的 pom

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <parent> <artifactId>phone</artifactId> <groupId>com.honor</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>honor-dao</artifactId> <dependencies> <dependency> <groupId>com.honor</groupId> <artifactId>honor-common</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-generator</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> </dependencies></project>

第四個是honor-manager的

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <parent> <artifactId>phone</artifactId> <groupId>com.honor</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.honor.manager</groupId> <artifactId>honor-manager</artifactId> <packaging>pom</packaging> <modules> <module>honor-manager-txn1</module> <module>honor-manager-user1</module> <module>honor-manager-boot</module> </modules> <dependencies> <dependency> <groupId>com.honor</groupId> <artifactId>honor-common</artifactId> </dependency> <dependency> <groupId>com.honor</groupId> <artifactId>honor-dao</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>com.honor.manager</groupId> <artifactId>honor-manager-boot</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.honor.manager</groupId> <artifactId>>honor-manager-txn1</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.honor.manager</groupId> <artifactId>>honor-manager-user1</artifactId> <version>1.0-SNAPSHOT</version> </dependency> </dependencies> </dependencyManagement></project>

然后 是 honor-manager-user

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <parent> <artifactId>honor-manager</artifactId> <groupId>com.honor.manager</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>honor-manager-user1</artifactId> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies></project>

然后 是honor-manager-boot記得boot 要引入 txn1 和 user的依賴，記得要把parents 要改一下，是為honor-manager.

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd'> <modelVersion>4.0.0</modelVersion> <parent> <artifactId>honor-manager</artifactId> <groupId>com.honor.manager</groupId> <version>1.0-SNAPSHOT</version> </parent> <groupId>com.honor.manager</groupId> <artifactId>honor-manager-boot</artifactId> <version>0.0.1-SNAPSHOT</version> <name>honor-manager-boot</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>com.honor.manager</groupId> <artifactId>honor-manager-user1</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.honor.manager</groupId> <artifactId>honor-manager-txn1</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter-api</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <exclusions> <exclusion> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter</artifactId> <version>RELEASE</version> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build></project>

第二階段 開始測試 首先搭建數據庫，做個簡單的User 表測試就行了

然后搭建 beans

User 的內容

package com.honor.common.beans;import com.baomidou.mybatisplus.annotation.IdType;import com.baomidou.mybatisplus.annotation.TableId;import lombok.Data;import lombok.EqualsAndHashCode;import lombok.experimental.Accessors;@Data@EqualsAndHashCode(callSuper = false)@Accessors(chain = true)public class User { @TableId(type = IdType.AUTO) private Integer id; private String username; private String password;}

第二部 dao層

UserMapper接口

package com.honor.mapper;import com.baomidou.mybatisplus.core.mapper.BaseMapper;import com.honor.common.beans.User;import org.apache.ibatis.annotations.Mapper;import java.util.List;@Mapperpublic interface UserMapper extends BaseMapper<User> {}

UserMapper.xml

<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE mapper PUBLIC '-//mybatis.org//DTD Mapper 3.0//EN' 'http://mybatis.org/dtd/mybatis-3-mapper.dtd'><mapper namespace='com.honor.mapper.UserMapper'> <resultMap type='com.eft.common.beans.User'/></mapper>

第三部分 springboot 的application 中加入掃描包的注解

@ServletComponentScan @MapperScan('com.honor.mapper')

然后編寫application.yml 文件

server: port: 8880 servlet: context-path: /honor-manager spring: application: name: users datasource: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://localhost:3306/eft?characterEncoding=UTF-8&serverTimezone=UTC&useSSL=true username: root password: 111111mybatis-plus: mapper-locations: - classpath*:com/honor/mapper/*.xml check-config-location: truedebug: true

緊接著編寫 userController 進行測試一定要前綴一樣！這里注意要前綴一樣，要不 掃描不到

UserController代碼

package com.honor.manager.controller;import com.honor.common.beans.User;import com.honor.mapper.UserMapper;import org.springframework.http.MediaType;import org.springframework.web.bind.annotation.*;import javax.annotation.Resource;import java.util.Map;@RestControllerpublic class UserController { @Resource UserMapper userMapper; @RequestMapping( value = '/api/user', method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE ) @ResponseBody public User read(@RequestParam Map<String, Object> params) { return userMapper.selectById('1'); } @GetMapping('/api/test') public String hello() { return 'hello'; }}

訪問 http://localhost:8880/honor-manager/api/user

自

此 多級模塊的項目就搭建成功了！

總結

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