Mybatis-generator,自动生成文件.问题及解决

1.在pom.xml配置如下

<!--MBG mybatis逆向工程jar包 -->
<dependency>
  <groupId>org.mybatis.generator</groupId>
  <artifactId>mybatis-generator-core</artifactId>
  <version>1.3.5</version>
</dependency>

<build>
    <finalName>chenssm</finalName>
      <plugins>
        <plugin>
          <groupId>org.mybatis.generator</groupId>
          <artifactId>mybatis-generator-maven-plugin</artifactId>
          <version>1.3.2</version>
          <configuration>
            <configurationFile>generatorConfig.xml</configurationFile>
            <verbose>true</verbose>
            <overwrite>true</overwrite>
          </configuration>
        </plugin>
      </plugins>
  </build>

2.配置generatorConfig.xml

曾经出现的经典错误

Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate (default-cli) on project ssm: Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate failed: Exception getting JDBC Driver: com.mysql.jdbc.Driver -> [Help 1]

没有指定jdbc驱动,或者路径不正确!

<?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>
    <!--指定特定数据库的jdbc驱动jar包的位置千万千万要指定正确,不然就创建不了文件-->
    <classPathEntry location="F:STS工具STS工作空间chenssmsrc	oolsmysql-connector-java-5.1.6-bin.jar"/>

  <context id="DB2Tables" targetRuntime="MyBatis3">
      <commentGenerator>
          <property name="suppressAllComments" value="true" />
    </commentGenerator>
  
    <!--配置数据库连接信息  -->
    <jdbcConnection driverClass="com.mysql.jdbc.Driver"
        connectionURL="jdbc:mysql://localhost:3306/ssm_crud"
        userId="root"
        password="kaola">
    </jdbcConnection>

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

    <!--指定javaBean生成的位置  -->
    <javaModelGenerator 
            targetPackage="com.chencode.pojo"
             targetProject=".srcmainjava">
      <property name="enableSubPackages" value="true" />
      <property name="trimStrings" value="true" />
    </javaModelGenerator>


    <!--指定sql映射文件生成的位置  -->
    <sqlMapGenerator 
                    targetPackage="mapper"  
                    targetProject=".srcmain
esources">
      <property name="enableSubPackages" value="true" />
    </sqlMapGenerator>


    <!--指定dao接口生成的位置 .mapper接口  -->
    <javaClientGenerator type="XMLMAPPER" 
            targetPackage="com.chencode.dao"  
            targetProject=".srcmainjava">
      <property name="enableSubPackages" value="true" />
    </javaClientGenerator>


    <!--table指定每个表得生成策略  -->
   <table tableName="tbl_emp" domainObjectName="Employee"> </table>
    <table tableName="tbl_dept" domainObjectName="Department"></table>
  </context>
</generatorConfiguration>

最后要注意一下对应的生成器通用指定的包和路径不能搞错一一对应!

注意targetProject里的” . “ 不能省略!

"." 代表的是应用程序的当前目录     ".." 代表的是应用程序的上级目录

3.在IDEA里一键生成

开始自动生成,最后出现提示 BUILD SUCCESS! 注意如果列表里没有说你pom.xml里你导入没有成功,删除在导入.只有成功导入配置才会出现.