Hibernate、Mybatis 通过数据库表反向生成java类和配置

一、通过MyEclipse生成Hibernate类文件和hbm.xml文件，或者annotation文件 （转载孙宇老师的文章）

二、Mybatis生成实体类和配置文件：

myeclipse下生成实体类和map配置文件：

1、新建一个maven工程



2、修改pom.xml文件

<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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.jacksoft.mybatis</groupId>
<artifactId>mybatis-generator</artifactId>
<version>0.0.1-SNAPSHOT</version>

<properties>
<mybatis-generator.version>1.3.1</mybatis-generator.version>
<mysql.version>5.1.13</mysql.version>
<mybatis.version>3.0.3</mybatis.version>
</properties>

<dependencies>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>

<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>${mybatis-generator.version}</version>
</dependency>

<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
</dependencies>

<build>
<finalName>mybatis-generator</finalName>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>${mybatis-generator.version}</version>
<dependencies>
<!-- 数据库驱动  -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>

</dependencies>
<!-- 自动生成 -->
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<configurationFile>src/main/resources/mysqlGeneratorConfig.xml</configurationFile>
<overwrite>true</overwrite>
<jdbcDriver>com.mysql.jdbc.Driver</jdbcDriver>
<jdbcURL>jdbc:mysql://localhost:3306/springmvc_mybatis</jdbcURL>
<jdbcUserId>root</jdbcUserId>
<jdbcPassword></jdbcPassword>
</configuration>
</execution>
</executions>
</plugin>

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>

</plugins>
</build>
</project>

3、添加mysqlGeneratorConfig.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>

<context id="mysqlTables" targetRuntime="MyBatis3">
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/springmvc_mybatis" userId="root"
password="" />

<!-- 指定生成的类型为java类型，避免数据库中number等类型字段 -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>

<!-- 生成model模型，对应的包，存放位置可以指定具体的路径,如/ProjectName/src，也可以使用MAVEN来自动生成 -->
<javaModelGenerator targetPackage="com.wjy.model"
targetProject="MAVEN">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>

<!--对应的xml mapper文件 -->
<sqlMapGenerator targetPackage="com.wjy.mapper"
targetProject="MAVEN">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>

<!-- 对应的dao接口 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="com.wjy.dao" targetProject="MAVEN">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>

<table tableName="user_info" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
<table tableName="course_info" domainObjectName="Course" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
<table tableName="course_user_info" domainObjectName="CourseUser" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
</context>
</generatorConfiguration>

4、生成



去target目录下看看 是否都已经出来了：