Mybatis逆向工程

最新推荐文章于 2025-09-12 18:08:49 发布

转载最新推荐文章于 2025-09-12 18:08:49 发布 · 58 阅读

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原文链接：http://www.cnblogs.com/hawell/p/5292143.html

文章标签：

#java #数据库

本文介绍如何使用MyBatis的逆向工程功能自动生成Java POJO类、Mapper接口及XML映射文件。通过配置pom文件引入所需依赖，并设置generatorConfig.xml文件来指定数据库连接信息、生成文件的目标位置等。

1.首先在pom文件里面加dependency依赖

    <dependencies>
        <!--mybatis自带的结合spring-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis-spring}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.8</version>
        </dependency>
    </dependencies>

2.在pom文件里面加入插件依赖

 <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <version>2.2.1</version>
                <executions>
                    <execution>
                        <id>attach-source</id>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                        <configuration>
                            <includes>
                                <include>**/org/**</include>
                            </includes>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
                <executions>
                    <execution>
                        <id>attach-jar</id>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                        <configuration>
                            <mainfest>
                                <addClasspath>true</addClasspath>
                                <classpathPrefix></classpathPrefix>
                                <mainClass>org.mybatis.generator.api.ShellRunner</mainClass>
                            </mainfest>
                            <includes>
                                <include>**/org/**</include>
                            </includes>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <!-- <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptors> 描述文件路径
                        <appendAssemblyId>false</appendAssemblyId>
                        <descriptor>src/main/resources/assembly.xml</descriptor>
                    </descriptors>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        绑定到package生命周期阶段上
                        <phase>package</phase>
                        <goals>
                            绑定到package生命周期阶段上
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin> -->
        </plugins>
    </build>

3.创建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="context1">
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3309/test"
                        userId="root" password="3309"/>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>

        <!--targetProgect:生成PO类的位置-->
        <javaModelGenerator targetPackage="comm.po" targetProject=".\src">

        </javaModelGenerator>
        <!--targetPackage:mapper文件生成的位置-->
        <sqlMapGenerator targetPackage="comm.mapper" targetProject=".\src"/>
        <javaClientGenerator targetPackage="comm.client" targetProject=".\src" type="XMLMAPPER"/>
        <!--链接数据库生成的表-->
        <table schema="" tableName="user" domainObjectName="UserInfo"></table>
    </context>
</generatorConfiguration>

4.创建自动生成逆向工程的类

import java.io.File;
import java.util.ArrayList;
import java.util.List;


import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.internal.DefaultShellCallback;

/**
 * mybatis逆向工程
 * Created by fwj on 16-3-18.
 */
public class Generator {


    public void generator() throws Exception {
        List<String> warnings = new ArrayList<String>();
        boolean overwrite = true;
        //指定 逆向工程配置文件
        File configFile = new File("generatorConfig.xml");
        ConfigurationParser cp = new ConfigurationParser(warnings);
        Configuration config = cp.parseConfiguration(configFile);
        DefaultShellCallback callback = new DefaultShellCallback(overwrite);
        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
                callback, warnings);
        myBatisGenerator.generate(null);


    }

    public static void main(String[] args) throws Exception {
        try {
            Generator generatorSqlmap = new Generator();
            generatorSqlmap.generator();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}

转载于:https://www.cnblogs.com/hawell/p/5292143.html