「小程序JAVA實戰」Springboot版mybatis逆向生成工具(32)
阿新 • • 發佈:2019-01-20
分層 lease contract sin ring ise lmap con beginning
轉自:https://idig8.com/2018/08/29/xiaochengxujavashizhanspringbootbanmybatisnixiangshengchenggongju32/
我們的整個項目的構建和分層已經完畢了,現在需要通過一個工具將我們整個數據庫,反向升成pojo和mybatis類。源碼:https://github.com/limingios/wxProgram.git 中的wx-springboot
代碼生成器
逆向生成mysql對應的pojo和mybatis通過單獨的一個工程不影響現有的業務邏輯。
- mybatis-generatorConfig工程
通過源碼裏面的sql生成對應的表結構和表數據。
mybatis-generatorConfig的pom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.idig8</groupId> <version>0.0.1-SNAPSHOT</version> <artifactId>mybatis-generatorConfig</artifactId> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!-- 引入log4j日誌依賴 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-log4j</artifactId> <version>1.3.8.RELEASE</version> </dependency> <!-- 阿裏開源數據源 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.0</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> <!--mybatis--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <!--mapper--> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper-spring-boot-starter</artifactId> <version>1.2.4</version> </dependency> <!--pagehelper--> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.2.3</version> </dependency> <!-- mybatis 逆向生成工具 --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> <scope>compile</scope> <optional>true</optional> </dependency> </dependencies> </project>
添加generatorConfig.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> <context id="MysqlContext" targetRuntime="MyBatis3Simple" defaultModelType="flat"> <property name="beginningDelimiter" value="`"/> <property name="endingDelimiter" value="`"/> <plugin type="tk.mybatis.mapper.generator.MapperPlugin"> <property name="mappers" value="com.idig8.utils.MyMapper"/> </plugin> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://47.94.162.28:3306/test" userId="XXXXX" password="XXXXX"> </jdbcConnection> <!-- 對應生成的pojo所在包 --> <javaModelGenerator targetPackage="com.idig8.pojo" targetProject="src/main/java"/> <!-- 對應生成的mapper所在目錄 --> <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"/> <!-- 配置mapper對應的java映射 --> <javaClientGenerator targetPackage="com.idig8.mapper" targetProject="src/main/java" type="XMLMAPPER"/> <table tableName="comments"></table> </context> </generatorConfiguration>
GeneratorDisplay.java類
package com.idig8.mybatis.utils;
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;
public class GeneratorDisplay {
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 {
GeneratorDisplay generatorSqlmap = new GeneratorDisplay();
generatorSqlmap.generator();
} catch (Exception e) {
e.printStackTrace();
}
}
}
添加MyMapper.java文件
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2016 [email protected]
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.idig8.utils;
import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.MySqlMapper;
public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {
//TODO
//FIXME 特別註意,該接口不能被掃描到,否則會出錯
}
- 運行GeneratorDisplay的main方法
- 復制com.idig8.mapper目錄到wx-springboot-mapper項目下
-
復制com.idig8.pojo 目錄到wx-springboot-pojo項目下
-
復制com.idig8.utils 目錄到wx-springboot-common項目下
-
復制resources mapper到wx-springboot-api的resources裏面
PS:mybatis-generatorConfig 可以看成一個單獨的項目,主要的目的就是為了升成對應的mapper.xml和對應的pojo實體類,mapper對應的實體。
「小程序JAVA實戰」Springboot版mybatis逆向生成工具(32)