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

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。