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：