mybatis逆向工程之maven工程

最新推荐文章于 2023-07-26 10:44:06 发布

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本文介绍如何在Maven项目中配置并使用MyBatis Generator来自动生成持久层代码，包括设置pom文件、创建配置文件generatorConfig.xml及执行生成命令。

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maven工程与动态web工程存在差异，不过大体是相同的

注意：运行成功后记得refresh刷新下，否则看不到

一、在pom文件中进行如下配置

<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>cn.mybatis.generator</groupId>
    <artifactId>mybatis-generator</artifactId>
    <version>0.0.1-SNAPSHOT</version>
 
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
 
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.35</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.2</version>
        </dependency>
    </dependencies>
 
 
    <build>
         <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                    <version>3.3</version>
                </plugin>
                <plugin>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-maven-plugin</artifactId>
                    <version>1.3.2</version>
                    <dependencies>
                        <dependency>
                            <groupId>mysql</groupId>
                            <artifactId>mysql-connector-java</artifactId>
                            <version>5.1.35</version>
                        </dependency>
                    </dependencies>
                    <configuration>
                         <!--配置文件的路径-->
                         <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
                        <overwrite>true</overwrite>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
 
 
</project>

二、在src/main/resource目录下新建配置文件generatorConfig.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="test" targetRuntime="MyBatis3">
        <plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin"></plugin>
        <plugin type="org.mybatis.generator.plugins.SerializablePlugin"></plugin>
        <plugin type="org.mybatis.generator.plugins.ToStringPlugin"></plugin>
        <commentGenerator>
            <!-- 这个元素用来去除指定生成的注释中是否包含生成的日期 false:表示保护 -->
            <!-- 如果生成日期，会造成即使修改一个字段，整个实体类所有属性都会发生变化，不利于版本控制，所以设置为true -->
            <property name="suppressDate" value="true" />
            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!--数据库链接URL，用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
            connectionURL="jdbc:mysql://localhost:3306/blog" userId="root"
            password="1234">
        </jdbcConnection>
        <javaTypeResolver>
            <!-- This property is used to specify whether MyBatis Generator should
                force the use of java.math.BigDecimal for DECIMAL and NUMERIC fields, -->
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>
        <!-- 生成模型的包名和位置 -->
        <javaModelGenerator targetPackage="cn.blog.model"
            targetProject="target">
            <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="cn.blog.mapper"
            targetProject="target">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>
        <!-- 生成DAO的包名和位置 -->
        <javaClientGenerator type="XMLMAPPER"
            targetPackage="cn.blog.mapper" implementationPackage="cn.blog.service.impl"
            targetProject="target">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>
 
        <!-- 要生成哪些表 -->
        <table tableName="`post`" domainObjectName="Post"></table>
 
        <table tableName="`posttag`" domainObjectName="PostTag"></table>
 
        <table tableName="`tag`" domainObjectName="Tag"></table>
 
        <table tableName="`type`" domainObjectName="Type"></table>
 
 
        <table tableName="`typetag`" domainObjectName="typetag"></table>
 
 
    </context>
</generatorConfiguration>