本篇文章给大家分享的是有关Mybatis Generator怎么在springboot中使用，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。
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MBG配置
1.添加依赖
org.mybatis.generator
mybatis-generator-core
1.3.5
2.XML配置
配置示例：在新建springboot项目的根目录下创建mbg.xml文件。
配置详解
生成代码：
public class TestMGB {
public static void main(String[] args) throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {
List warnings =new ArrayList();
boolean overwrite=true;
File configFile=new File("mgb.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);
}
}3.Java配置示例
基于Java的配置是和上面的XML配置是相对应的。直接运行该示例即可生成数据表对于的pojo,mapper接口和一个sqlprovider Java类。
package com.mgb.test;
import java.util.ArrayList;
import java.util.List;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.CommentGeneratorConfiguration;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.Context;
import org.mybatis.generator.config.JDBCConnectionConfiguration;
import org.mybatis.generator.config.JavaClientGeneratorConfiguration;
import org.mybatis.generator.config.JavaModelGeneratorConfiguration;
import org.mybatis.generator.config.JavaTypeResolverConfiguration;
import org.mybatis.generator.config.ModelType;
import org.mybatis.generator.config.PluginConfiguration;
import org.mybatis.generator.config.SqlMapGeneratorConfiguration;
import org.mybatis.generator.config.TableConfiguration;
import org.mybatis.generator.internal.DefaultShellCallback;
public class MGBConfig {
public static void main(String[] args) throws Exception{
//配置xml配置项
List warnings = new ArrayList();
boolean overwrite = true;
Configuration config = new Configuration();
Context context = new Context(ModelType.CONDITIONAL);
context.setTargetRuntime("MyBatis3");
context.setId("defaultContext");
//自动识别数据库关键字，默认false，如果设置为true，
//根据SqlReservedWords中定义的关键字列表；一般保留默认值，遇到数据库关键字（Java关键字），
//使用columnOverride覆盖
context.addProperty("autoDelimitKeywords","true");
//生成的Java文件的编码
context.addProperty("javaFileEncoding","utf-8");
context.addProperty("beginningDelimiter","`");
context.addProperty("endingDelimiter","`");
//格式化java代码
context.addProperty("javaFormatter","org.mybatis.generator.api.dom.DefaultJavaFormatter");
//格式化xml代码
context.addProperty("xmlFormatter","org.mybatis.generator.api.dom.DefaultXmlFormatter");
//格式化信息
PluginConfiguration pluginConfiguration = new PluginConfiguration();
pluginConfiguration.setConfigurationType("org.mybatis.generator.plugins.SerializablePlugin");
pluginConfiguration.setConfigurationType("org.mybatis.generator.plugins.ToStringPlugin");
context.addPluginConfiguration(pluginConfiguration);
//设置是否去除生成注释
CommentGeneratorConfiguration commentGeneratorConfiguration = new CommentGeneratorConfiguration();
commentGeneratorConfiguration.addProperty("suppressAllComments","true");
//commentGeneratorConfiguration.addProperty("suppressDate","true");
context.setCommentGeneratorConfiguration(commentGeneratorConfiguration);
//设置连接数据库
JDBCConnectionConfiguration jdbcConnectionConfiguration = new JDBCConnectionConfiguration();
jdbcConnectionConfiguration.setDriverClass("com.mysql.jdbc.Driver");
jdbcConnectionConfiguration.setConnectionURL("jdbc:mysql://localhost:3306/definesys");
jdbcConnectionConfiguration.setPassword("welcome1");
jdbcConnectionConfiguration.setUserId("root");
context.setJdbcConnectionConfiguration(jdbcConnectionConfiguration);
JavaTypeResolverConfiguration javaTypeResolverConfiguration = new JavaTypeResolverConfiguration();
//是否使用bigDecimal， false可自动转化以下类型（Long, Integer, Short, etc.）
javaTypeResolverConfiguration.addProperty("forceBigDecimals","false");
context.setJavaTypeResolverConfiguration(javaTypeResolverConfiguration);
//生成实体类的地址
JavaModelGeneratorConfiguration javaModelGeneratorConfiguration = new JavaModelGeneratorConfiguration();
javaModelGeneratorConfiguration.setTargetPackage("com.mgb.domain");
javaModelGeneratorConfiguration.setTargetProject("src/main/java");
javaModelGeneratorConfiguration.addProperty("enableSubPackages","true");
javaModelGeneratorConfiguration.addProperty("trimStrings","true");
context.setJavaModelGeneratorConfiguration(javaModelGeneratorConfiguration);
//生成的xml的地址
SqlMapGeneratorConfiguration sqlMapGeneratorConfiguration = new SqlMapGeneratorConfiguration();
sqlMapGeneratorConfiguration.setTargetProject("src/main/java");
sqlMapGeneratorConfiguration.setTargetPackage("com.mgb.mapper");
sqlMapGeneratorConfiguration.addProperty("enableSubPackages","true");
context.setSqlMapGeneratorConfiguration(sqlMapGeneratorConfiguration);
//生成注解接口
JavaClientGeneratorConfiguration javaClientGeneratorConfiguration = new JavaClientGeneratorConfiguration();
javaClientGeneratorConfiguration.setTargetPackage("com.mgb.dao");
javaClientGeneratorConfiguration.setTargetProject("src/main/java");
//注解形式 ANNOTATEDMAPPER xml形式 XMLMAPPER
javaClientGeneratorConfiguration.setConfigurationType("ANNOTATEDMAPPER");
javaClientGeneratorConfiguration.addProperty("enableSubPackages","true");
context.setJavaClientGeneratorConfiguration(javaClientGeneratorConfiguration);
TableConfiguration tableConfiguration = new TableConfiguration(context);
tableConfiguration.setTableName("user_info");
tableConfiguration.setCountByExampleStatementEnabled(true);
tableConfiguration.setUpdateByExampleStatementEnabled(true);
tableConfiguration.setDeleteByExampleStatementEnabled(true);
tableConfiguration.setInsertStatementEnabled(true);
tableConfiguration.setDeleteByPrimaryKeyStatementEnabled(true);
context.addTableConfiguration(tableConfiguration);
config.addContext(context);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
myBatisGenerator.generate(null);
}
}使用
package com.mgb.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.mgb.dao.UserInfoMapper;
import com.mgb.domain.UserInfo;
import com.mgb.domain.UserInfoExample;
@Service
public class UserService {
@Autowired
private UserInfoMapper userInfoMapper;
/**
* 按姓名查询
* @param name
* @return
*/
public List getUserByName(String name){
UserInfoExample uerInfoExample=new UserInfoExample();
uerInfoExample.createCriteria().andNameEqualTo(name);
return userInfoMapper.selectByExample(uerInfoExample);
}
/**
* 有条件的insert
* @param userInfo
* @return
*/
public Integer addUser(UserInfo userInfo) {
return userInfoMapper.insertSelective(userInfo);
}
/**
* 根据ID更新用户信息
* @param userInfo
* @return
*/
public Integer updateUser(UserInfo userInfo) {
return userInfoMapper.updateByPrimaryKey(userInfo);
}
/**
* 根据ID删除用户
* @param id
* @return
*/
public Integer deleteUserById(Integer id) {
return userInfoMapper.deleteByPrimaryKey(id);
}
}以上就是Mybatis Generator怎么在springboot中使用，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注创新互联行业资讯频道。
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