IDE中使用 mybatis-generator自動生成代碼（for mysql8）

 目錄

1、pom文件修改

2、resources下增加 generatorConfig.xml 文件

3、配置運行generator (配置文本：mybatis-generator:generate )

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附、t_info 創建腳本

---

1、pom文件修改

<?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>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.7.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
  </parent>
  <groupId>com.example</groupId>
  <artifactId>demo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>demo</name>
  <description>Demo project for Spring Boot</description>

  <properties>
    <java.version>1.8</java.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.mybatis.spring.boot</groupId>
      <artifactId>mybatis-spring-boot-starter</artifactId>
      <version>2.1.2</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>1.3.5</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <scope>runtime</scope>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </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>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <configuration>
          <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
          <overwrite>true</overwrite>
          <verbose>true</verbose>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

  <dependencies>下增加 mybatis-generator-core 依賴， <plugins>下增加mybatis-generator-maven-plugin 插件

2、resources下增加 generatorConfig.xml 文件

<?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>
  <!-- 數據庫驅動:換成你本地的驅動包位置-->
  <classPathEntry  location="D:\work\maven\repo2\mysql\mysql-connector-java\8.0.16\mysql-connector-java-8.0.16.jar"/>
  <context id="DB2Tables"  targetRuntime="MyBatis3">
    <commentGenerator>
      <property name="suppressDate" value="true"/>
      <!-- 是否去除自動生成的註釋 true：是 ： false:否 -->
      <property name="suppressAllComments" value="true"/>
    </commentGenerator>
    <!--數據庫鏈接URL，用戶名、密碼 -->
    <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/traffic_info?characterEncoding=utf8&amp;serverTimezone=UTC" userId="root" password="root">
    </jdbcConnection>
    <javaTypeResolver>
      <property name="forceBigDecimals" value="false"/>
    </javaTypeResolver>
    <!-- 生成模型的包名和位置-->
    <javaModelGenerator targetPackage="com.example.demo.entity" targetProject="src/main/java">
      <property name="enableSubPackages" value="true"/>
      <property name="trimStrings" value="true"/>
    </javaModelGenerator>
    <!-- 生成映射文件的包名和位置-->
    <sqlMapGenerator targetPackage="resources.mapper" targetProject="src/main">
      <property name="enableSubPackages" value="true"/>
    </sqlMapGenerator>
    <!-- 生成DAO的包名和位置-->
    <javaClientGenerator type="XMLMAPPER" targetPackage="com.example.demo.dao" targetProject="src/main/java">
      <property name="enableSubPackages" value="true"/>
    </javaClientGenerator>
    <!-- 要生成的表 tableName是數據庫中的表名或視圖名 domainObjectName是實體類名-->
    <table tableName="t_info" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
  </context>
</generatorConfiguration>

mysql8下注意修改驅動     <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/traffic_info?characterEncoding=utf8&amp;serverTimezone=UTC" userId="root" password="root">，其他的修改註釋部分有說明

3、配置運行generator (配置文本：mybatis-generator:generate )

 

附、t_info 創建腳本

 CREATE TABLE `t_info` (  

`id` int(11) NOT NULL AUTO_INCREMENT,

`username` varchar(50) NOT NULL DEFAULT '' COMMENT '用戶名',  

`password` varchar(50) NOT NULL DEFAULT '' COMMENT '密碼',  

  `telephone` varchar(255) DEFAULT '' COMMENT '手機號',  

`user_address` varchar(255) DEFAULT '' COMMENT '地址',  

PRIMARY KEY (`id`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;