基于maven构建分包web项目(SpringBoot项目和逆向工程详细讲解)

秒速五厘米 2022-05-21 02:17 224阅读 0赞

一、与传统SSM单结构web项目优势

1.单结构不容易维护，单结构适合项目比较小，成员较少的

2.多结构可以利用maven依赖传递优势，可以做到各个层次独立起来，这样聚合性更多，更容易维护

二、maven下载配置

1.自行百度maven下载

2.对maven压缩的文件目录的setting.xml进行配置，一般对镜像地址修改，以及本地仓库地址修改

阿里云镜像

![70][]

本地仓库

![70 1][]

2.对集成开发环境进行配置

IDEA

![70 2][]

指定setting.xml，指定仓库

三、创建分包

1.创建聚合工程

创建maven工程，指定x值，y值，指定工程名root(或者parent)

创建common工程模块module，指定x值，y值，指定父maven工程（存放项目的工具类和依赖的第三方jar包）

创建pojo工程module，指定x值，y值，指定父maven工程

创建mapper工程module，指定x值，y值，指定父maven工程

创建service工程module，指定x值，y值，指定父maven工程

创建web工程module，打包方式war，指定x值，y值，指定父maven工程

2.创建逆向工程作为聚合工程的一个模块

1.创建方式如上

2.配置

在java下创建两个包 com.\*.pojo com.\*.mapper \*是变量，随你自定义

在resources创建一个文件夹mappers

pom.xml配置

<?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>wangtao-videos-dev</artifactId>
            <groupId>com.wangtao</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>mabatis</artifactId>
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        </properties>
    
        <dependencies>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-log4j</artifactId>
                <version>1.3.8.RELEASE</version>
            </dependency>
    
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>1.1.0</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>1.1.0</version>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.41</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.3.1</version>
            </dependency>
            
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper-spring-boot-starter</artifactId>
                <version>1.2.4</version>
            </dependency>
            
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>1.2.3</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-core</artifactId>
                <version>1.3.2</version>
                <scope>compile</scope>
                <optional>true</optional>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-maven-plugin</artifactId>
                    <version>1.3.2</version>
                    <configuration>
                        <verbose>true</verbose>
                        <overwrite>true</overwrite>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    
    </project>

逆向配值

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE generatorConfiguration
            PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
            "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
    
    <generatorConfiguration>
        
        <properties resource="datasource.properties"></properties>
    
        
        <classPathEntry location="${db.driverLocation}"/>
    
        <context id="default" targetRuntime="MyBatis3">
    
            
            <commentGenerator>
                <property name="suppressDate" value="true"/>
                <property name="suppressAllComments" value="true"/>
            </commentGenerator>
    
            
            <jdbcConnection
                    driverClass="${db.driverClassName}"
                    connectionURL="${db.url}"
                    userId="${db.username}"
                    password="${db.password}">
            </jdbcConnection>
    
    
            
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false"/>
            </javaTypeResolver>
    
    
            
            <javaModelGenerator targetPackage="com.*.pojo" targetProject="./src/main/java">
                
                <property name="enableSubPackages" value="false"/>
                
                <property name="constructorBased" value="true"/>
                
                <property name="trimStrings" value="true"/>
                
                <property name="immutable" value="false"/>
            </javaModelGenerator>
    
            
            
            <sqlMapGenerator targetPackage="mappers" targetProject="./src/main/resources">
                <property name="enableSubPackages" value="false"/>
            </sqlMapGenerator>
    
            
    
            
            
            <javaClientGenerator type="XMLMAPPER" targetPackage="com.*.mapper" targetProject="./src/main/java">
                
                <property name="enableSubPackages" value="false" />
            </javaClientGenerator>
    
    
            <table tableName="*" domainObjectName="Bgm" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
    
        </context>
    </generatorConfiguration>

注意：修改\*值

使用刚刚下载的IDEA的生成插件生成代码，将代码复制到各个模块里

四、SpringBoot配置

Application.java

package com.wangtao;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.context.annotation.ComponentScan;
    
    import tk.mybatis.spring.annotation.MapperScan;
    
    @SpringBootApplication
    @MapperScan(basePackages = "com.*.mapper")
    @ComponentScan(basePackages= {
      "com.wangtao"})
    public class Application {
       
       public static void main(String[] args) {
          SpringApplication.run(Application.class, args);
       }
       
    }

application.peoperties

spring.datasource.url=jdbc:mysql://localhost:3306/*
    spring.datasource.username=root
    spring.datasource.password=123456
    spring.datasource.driver-class-name=com.mysql.jdbc.Driver
    spring.datasource.druid.initial-size=1
    spring.datasource.druid.min-idle=1
    spring.datasource.druid.max-active=20
    spring.datasource.druid.test-on-borrow=true
    spring.datasource.druid.stat-view-servlet.allow=true
    
    
    mybatis.type-aliases-package=com.*.pojo
    mybatis.mapper-locations=classpath:mappers/*Mapper.xml
    mapper.not-empty=false
    mapper.identity=MYSQL
    pagehelper.helperDialect=mysql
    pagehelper.supportMethodsArguments=true
    pagehelper.params=count=countSql
    
    
    spring.http.multipart.maxFileSize=100Mb
    spring.http.multipart.maxRequestSize=1000Mb
    
    
    server.port=8081
    
    server.tomcat.uri-encoding=UTF-8

创建一个controller hello

package com.wangtao.controller;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class HelloWorldController {
       
       @RequestMapping("/hello")
       public String Hello() {
          return "Hello Spring Boot~";
       }
       
    }

启动入口类，测试localhost:8081/hello 出现Hello Spring Boot~ 项目构建成功

[70]: /images/20220521/54c634b383164783bd94bc68be781dd0.png
[70 1]: /images/20220521/7156d85e81dd49a09b26dfd910005a54.png
[70 2]: /images/20220521/133c5639ec5a444cb3902fcbe1d5804c.png