maven + MyBatis Generator 自动生成代码配置

最近在搭建新项目，用到mybatis，记录一下maven+mybatis generator生成代码配置的过程，作备忘用。参考网站:mybatis generator

1.pom文件配置，主要是引入mybatis-generator-maven-plugin插件。

<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.test.maven</groupId>
<artifactId>aliexpress-server</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>test-server Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>

<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.6</version>
</dependency>

<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>test-maven</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<!-- mybatis 代码生成插件 -->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<overwrite>true</overwrite>
<configurationFile>${project.basedir}/src/test/resources/MyBatis_Generator_Config.xml</configurationFile>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.2</version>
<configuration>
<classifier>${project.classifier}</classifier>
<webResources>
<resource>
<filtering>true</filtering>
<directory>src/main/webapp</directory>
</resource>
</webResources>
</configuration>
</plugin>
</plugins>
</build>
</project>

2.配置MyBatis_Generator_Config.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>
<!-- 使用方法:
1.配置 properties.
2.配置数据库驱动位置.
3.配置需要反向生成代码的表.
4.配置完成后,在项目目录test-maven下运行：mvn mybatis-generator:generate
5.生成的代码在：target/generated-sources/mybatis-generator目录下.
-->
<!-- 1.指定配置文件路径，在这里我们使用绝对路径，如果使用properties的resource属性，需要设置classpath -->
<properties  url="file:///G:/eclipse/workspace/test-maven/src/test/resources/init.properties"/>
<!-- 2.指定数据库驱动jar的位置，同上，使用绝对路径  -->
<classPathEntry location="D:/maven_repository/.m2/repository/mysql/mysql-connector-java/5.1.15/mysql-connector-java-5.1.15.jar" />

<context id="mybatis" targetRuntime="MyBatis3">
<jdbcConnection driverClass="${jdbc_driver}"
connectionURL="${jdbc_url}"
userId="${jdbc_user}"
password="${jdbc_password}">
</jdbcConnection>

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

<javaModelGenerator targetPackage="test.model" targetProject="MAVEN">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>

<sqlMapGenerator targetPackage="mapper"  targetProject="MAVEN">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>

<javaClientGenerator type="XMLMAPPER" targetPackage="test.dao"  targetProject="MAVEN">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>

<table tableName="test_maven" domainObjectName="TestMaven" enableSelectByExample="false" enableDeleteByExample="false"
enableCountByExample="false" enableUpdateByExample="false" />

</context>
</generatorConfiguration>

3.配置init.properties，这个步骤其实可以省略，在MyBatis_Generator_Config.xml里面直接配置即可，注意参数的转义符。

#Mybatis Generator configuration
jdbc_driver = com.mysql.jdbc.Driver
jdbc_url=jdbc\:mysql\://127.0.0.1:3306/test_maven?useUnicode\=true&characterEncoding\=utf8&autoReconnect\=true&zeroDateTimeBehavior\=convertToNull&transformedBitIsBoolean\=true
jdbc_user=root
jdbc_password=root

4.在命令行进入项目目录，执行mvn mybatis-generator:generate，查看输出结果即可。执行mvn命令如果有报错，先加上-X参数看看报错异常情况，然后根据问题检查配置，如果配置无问题，还报错，有可能是注释问题，去掉注释试试，之前碰到过一次，没记录下来报错详细情况，去掉注释后正常使用。