研究了一天終於實現了在springboot中整合通用Mapper,分頁外掛,和Generator,特此記錄一下

首先是整合Generator,有幾種方式,在這裡使用maven整合

1. 在pom.xml中整合Generator外掛

<plugins>
   <plugin>
       <groupId>org.springframework.boot</groupId>
       <!--熱部署外掛-->
       <artifactId>spring-boot-maven-plugin</artifactId
 
>
       <!--專案每次修改之後重新啟動-->
       <!--<configuration>
           <fork>true</fork>
       </configuration>-->
   </plugin>
   <plugin>
       <groupId>org.mybatis.generator</groupId>
       <artifactId>mybatis-generator-maven-plugin</artifactId
 
>
       <version>1.3.5</version>
       <configuration>
           <verbose>true</verbose>
           <overwrite>true</overwrite>
       </configuration>
       <dependencies>
           <!--使用6.0以上的版本會生成檔案失敗,暫時不知道原因-->
           <dependency
 
>
               <groupId>mysql</groupId>
               <artifactId>mysql-connector-java</artifactId>
               <version>5.1.44</version>
           </dependency>
           <dependency>
               <groupId>tk.mybatis</groupId>
               <artifactId>mapper</artifactId>
               <version>3.4.5</version>
           </dependency>
       </dependencies>
   </plugin>
</plugins>

2.配置generatorConfig.xml

<?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>
    <!--匯入屬性配置 -->
    <properties resource="generator.properties"></properties>
    <!--這裡是重點!!targetRuntime要配置MyBatis3Simple而不是MyBatis3
    否則會命名衝突!!-->
    <context id="default" targetRuntime="MyBatis3Simple">
        <!--整合通用Mapper外掛-->
        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <property name="mappers" value="tk.mybatis.mapper.common.Mapper"/>
        </plugin>
        <!-- 是否去除自動生成的註釋 true：是 ： false:否 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
            <property name="suppressDate" value="true"/>
        </commentGenerator>
        <!--jdbc的資料庫連線 -->
        <jdbcConnection driverClass="${jdbc.driver}" connectionURL="${jdbc.url}" userId="${jdbc.username}"
                        password="${jdbc.password}">
        </jdbcConnection>

        <javaTypeResolver>
            <property name="forceBigDecimals" value="true"/>
        </javaTypeResolver>


        <javaModelGenerator targetPackage="${jdbc.entity.package}" targetProject="src/main/java">
          <property name="constructorBased" value="true"/>
   <property name="enableSubPackages" value="false"/>
           <property name="immutable" value="false"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <sqlMapGenerator targetPackage="${jdbc.mapper.package}" targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>

        <javaClientGenerator targetPackage="${jdbc.mapper.package}" targetProject="src/main/java" type="XMLMAPPER">
            <property name="enableSubPackages" value="false"/>

            <property name="exampleMethodVisibility" value=""/>

            <property name="methodNameCalculator" value=""/>
            <!--為生成的介面新增父介面  -->
            <property name="rootInterface" value=""/>

        </javaClientGenerator>
        <table schema="" tableName="%">
        </table>
    </context>
</generatorConfiguration>

3.執行mvn命令

mvn mybatis-generator:generate

到此就可以生成mapper檔案以及xml,在這裡提及一下,在IDEA工具中,如果將xml生成在java目錄下是會報錯的,必須生成在resource目錄中,如果不想生成在resource中
則可以在maven中配置資源目錄用來識別xml

<resources>
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/*.xml</include>
        </includes>
    </resource>
    <!--此處如果不配做resource目錄,則執行其他maven命令時,maven將不會識別resource中的配置檔案-->
    <resource>
        <directory>src/main/resources</directory>
    </resource>
</resources>

4.在springboot的配置檔案中配置

mybatis:
  type-aliases-package: com.spring.demo.entity
  mapper-locations: classpath:generator/*.xml
  configuration:
    #支援駝峰命名法
    map-underscore-to-camel-case: true
    #開啟延遲載入的開關
    lazy-loading-enabled: true
    #將積極載入改為消極載入即按需載入
    aggressive-lazy-loading: false
    #開啟二級快取
    cache-enabled: true

5.用maven整合通用Mapper,分頁外掛

<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>1.2.3</version>
</dependency>
<!--通用Mapper外掛-->
<dependency>
    <groupId>tk.mybatis</groupId>
    <artifactId>mapper-spring-boot-starter</artifactId>
    <version>1.1.5</version>
</dependency>

使用這兩個包則可以去掉mybatis的依賴,這兩個包中已經包含了mybatis的依賴

6.新建MyBatisConfig用來配置分頁外掛

@Configuration
public class MyBatisConfig{

    @Bean
    public PageHelper pageHelper(){
        PageHelper pageHelper = new PageHelper();
        //新增配置，也可以指定檔案路徑
        Properties p = new Properties();
        p.setProperty("offsetAsPageNum", "true");
        p.setProperty("rowBoundsWithCount", "true");
        p.setProperty("reasonable", "true");
        pageHelper.setProperties(p);
        return pageHelper;
    }
}

7.如果使用了springboot的熱部署外掛則還需要在入口檔案中將mapper檔案放入
restart啟動器

System.setProperty("restart.include.mapper", "/mapper-[\\\\w-\\\\.]+jar");
System.setProperty("restart.include.pagehelper", "/pagehelper-[\\\\w-\\\\.]+jar");

至此大功告成