使用java代码动态配置与xml文件结合的方式使用mybatis-generator生成代码配置

时间：2023-02-26 23:16:11

1、使用java代码动态配置与xml文件结合的方式使用mybatis-generator生成代码配置

2、上代码：在resources目录下新建：generatorConfiguration.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>

    <properties resource="jdbc.properties" />

    <context id="sqlserverTables" targetRuntime="MyBatis3">

        <!-- 生成的 Java 文件的编码 -->

        <property name="javaFileEncoding" value="UTF-8" />

        <!-- 格式化 Java 代码 -->

        <property name="javaFormatter"

            value="org.mybatis.generator.api.dom.DefaultJavaFormatter" />

        <!-- 格式化 XML 代码 -->

        <property name="xmlFormatter"

            value="org.mybatis.generator.api.dom.DefaultXmlFormatter" />

        <!-- 生成的pojo，将implements Serializable -->

        <plugin type="org.mybatis.generator.plugins.SerializablePlugin"></plugin>

        <commentGenerator>

            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->

            <property name="suppressAllComments" value="false" />

        </commentGenerator>

        <!-- 数据库链接URL、用户名、密码 -->

        <jdbcConnection driverClass="${jdbc.driverClassName}"

            connectionURL="${jdbc.url}" userId="${jdbc.username}"

            password="${jdbc.password}">

        </jdbcConnection>

        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer true，把JDBC DECIMAL 和

            NUMERIC 类型解析为java.math.BigDecimal -->

        <javaTypeResolver>

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

        </javaTypeResolver>

        <!-- 生成model模型，对应的包路径，以及文件存放路径(targetProject)，targetProject可以指定具体的路径,如./src/main/java，

            也可以使用“MAVEN”来自动生成，这样生成的代码会在target/generatord-source目录下 -->

        <!--<javaModelGenerator targetPackage="com.joey.mybaties.test.pojo" targetProject="MAVEN"> -->

        <javaModelGenerator

            targetPackage="com.yuebing.zhongqiu.manage.system.bean" targetProject="./src/main/java">

            <property name="enableSubPackages" value="true" />

            <!-- 从数据库返回的值被清理前后的空格 -->

            <property name="trimStrings" value="true" />

        </javaModelGenerator>

        <!--对应的mapper.xml文件 -->

        <sqlMapGenerator targetPackage="mappers"

            targetProject="com.yuebing.zhongqiu.manage.system.dao.mapper">

            <property name="enableSubPackages" value="true" />

        </sqlMapGenerator>

        <!-- 对应的Mapper接口类文件 -->

        <javaClientGenerator type="XMLMAPPER"

            targetPackage="com.yuebing.zhongqiu.manage.system.dao.mapper" targetProject="./src/main/java">

            <property name="enableSubPackages" value="true" />

        </javaClientGenerator>

        <!-- 列出要生成代码的所有表，这里配置的是不生成Example文件 -->

        <table tableName="sys_user" domainObjectName="SysUser"

            enableCountByExample="false" enableUpdateByExample="false"

            enableDeleteByExample="false" enableSelectByExample="false"

            selectByExampleQueryId="false">

            <property name="useActualColumnNames" value="false" />

        </table>

    </context>

</generatorConfiguration>

3、新建Java类动态配置：

/**

 *

 */

package com.yuebing.zhongqiu.utils;

import java.io.File;

import java.io.IOException;

import java.sql.SQLException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import org.mybatis.generator.api.MyBatisGenerator;

import org.mybatis.generator.api.ProgressCallback;

import org.mybatis.generator.config.Configuration;

import org.mybatis.generator.config.Context;

import org.mybatis.generator.config.JavaClientGeneratorConfiguration;

import org.mybatis.generator.config.JavaModelGeneratorConfiguration;

import org.mybatis.generator.config.SqlMapGeneratorConfiguration;

import org.mybatis.generator.config.TableConfiguration;

import org.mybatis.generator.config.xml.ConfigurationParser;

import org.mybatis.generator.exception.InvalidConfigurationException;

import org.mybatis.generator.exception.XMLParserException;

import org.mybatis.generator.internal.DefaultShellCallback;

/**

 * @author IT

 *

 */

public class GeneratorUtil {

    /**

     * 使用java文件和xml文件结合的方式来配置org.mybatis.generator 自动生成代码

     * @param configFileName 配置文件的名称

     * @param tableConfig 配置项

     * @param pcallbacks 回调接口

     * @return 是否成功

     * @throws IOException

     * @throws XMLParserException

     * @throws InvalidConfigurationException

     * @throws SQLException

     * @throws InterruptedException

     */

    public static boolean setJaveFile(String configFileName,HashMap<String,String> tableConfig,ProgressCallback pcallbacks) throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {

        List<String> warnings = new ArrayList<String>();

        boolean overwrite = true;

        String rfp = GeneratorUtil.class.getResource("/"+configFileName).getFile();

        File configFile = new File(rfp);

        ConfigurationParser cp = new ConfigurationParser(warnings);

        Configuration config = cp.parseConfiguration(configFile);

        DefaultShellCallback callback = new DefaultShellCallback(overwrite);

        MyBatisGenerator myBatisGenerator = null;

        //hashmap

        setConfiguration(config, tableConfig);

        myBatisGenerator = new MyBatisGenerator(config, callback, warnings);

        myBatisGenerator.generate(pcallbacks );

        return true;

    }

    public static void setConfiguration(Configuration cft,HashMap<String,String> tableConfig) {

        if(cft != null) {

            List<Context> contextList = cft.getContexts();

            for(Context context :contextList) {

                List<TableConfiguration> tableConfList = context.getTableConfigurations();

                for(TableConfiguration tableConf :tableConfList) {

                    //设置表名

                    String tableName = tableConfig.get("tableName");

                    if(tableName != null && !"".equals(tableName))

                        tableConf.setTableName(tableName);

                    //设置生成的实体类的名称

                    String domainObjectName = tableConfig.get("domainObjectName");

                    if(domainObjectName != null && !"".equals(domainObjectName))

                        tableConf.setDomainObjectName(domainObjectName);

                }

                //java实体类配置

                JavaModelGeneratorConfiguration javaMode = context.getJavaModelGeneratorConfiguration();

                //设置model实体类对应的包路径，以及文件存放路径 targetProject可以指定具体的路径,如./src/main/java

                String targetPackage = tableConfig.get("targetPackage");

                String targetProject = tableConfig.get("targetProject");

                if(targetPackage != null && !"".equals(targetPackage))

                    javaMode.setTargetPackage(targetPackage);

                if(targetProject != null && !"".equals(targetProject))

                    javaMode.setTargetProject(targetProject);

                //对应的mapper.xml文件

                SqlMapGeneratorConfiguration sqlMap = context.getSqlMapGeneratorConfiguration();

                String xml_targetPackage = tableConfig.get("xml_targetPackage");

                String xml_targetProject = tableConfig.get("xml_targetProject");

                if(xml_targetPackage != null && !"".equals(xml_targetPackage))

                    sqlMap.setTargetPackage(xml_targetPackage);

                if(xml_targetProject != null && !"".equals(xml_targetProject))

                    sqlMap.setTargetProject(xml_targetProject);

                //对应的Mapper接口类文件

                JavaClientGeneratorConfiguration javaClient = context.getJavaClientGeneratorConfiguration();

                String Java_map_targetPackage = tableConfig.get("Java_map_targetPackage");

                String Java_map_targetProject = tableConfig.get("Java_map_targetProject");

                if(Java_map_targetPackage != null && !"".equals(Java_map_targetPackage))

                    javaClient.setTargetPackage(Java_map_targetPackage);

                if(Java_map_targetProject != null && !"".equals(Java_map_targetProject))

                    javaClient.setTargetProject(Java_map_targetProject);

                //context

                //CommentGenerator commGen = context.getCommentGenerator();

            }

        }

    }

    public static void main(String[] ag) {

        String configFileName = "generatorConfiguration.xml";

        HashMap<String,String> tableConfig = new HashMap<String, String>();

        tableConfig.put("tableName", "sys_menu");

        tableConfig.put("domainObjectName", "SysMenu");

        tableConfig.put("targetPackage", "com.yuebing.zhongqiu.manage.system.bean");

        tableConfig.put("targetProject", "./src/main/java");

        tableConfig.put("xml_targetPackage", "mappers");

        tableConfig.put("xml_targetProject", "./src/main/resources/static/mappers");

        tableConfig.put("Java_map_targetPackage", "com.yuebing.zhongqiu.manage.system.dao.mapper");

        tableConfig.put("Java_map_targetProject", "./src/main/java");

        ProgressCallback pcallbacks = null;

        try {

            setJaveFile(configFileName,tableConfig,pcallbacks);

        } catch (IOException e) {

            e.printStackTrace();

        } catch (XMLParserException e) {

            e.printStackTrace();

        } catch (InvalidConfigurationException e) {

            e.printStackTrace();

        } catch (SQLException e) {

            e.printStackTrace();

        } catch (InterruptedException e) {

            e.printStackTrace();

        }

    }

}

4、测试：

public static void main(String[] ag) {

        String configFileName = "generatorConfiguration.xml";

        HashMap<String,String> tableConfig = new HashMap<String, String>();

        tableConfig.put("tableName", "sys_menu");

        tableConfig.put("domainObjectName", "SysMenu");

        tableConfig.put("targetPackage", "com.yuebing.zhongqiu.manage.system.bean");

        tableConfig.put("targetProject", "./src/main/java");

        tableConfig.put("xml_targetPackage", "mappers");

        tableConfig.put("xml_targetProject", "./src/main/resources/static/mappers");

        tableConfig.put("Java_map_targetPackage", "com.yuebing.zhongqiu.manage.system.dao.mapper");

        tableConfig.put("Java_map_targetProject", "./src/main/java");

        ProgressCallback pcallbacks = null;

        try {

            setJaveFile(configFileName,tableConfig,pcallbacks);

        } catch (IOException e) {

            e.printStackTrace();

        } catch (XMLParserException e) {

            e.printStackTrace();

        } catch (InvalidConfigurationException e) {

            e.printStackTrace();

        } catch (SQLException e) {

            e.printStackTrace();

        } catch (InterruptedException e) {

            e.printStackTrace();

        }

    }

5、测试结果ok

6、结束。

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