springboot+mybatis自动建表

在网上搜到一位大佬写的框架，可以实现mybatis自动创建数据表（目前仅限mysql）。原文链接：A.CTable开源框架Mybatis增强自动创建表/更新表结构/实现类似hibernate共通的增删改查

pom.xml依赖

		
			org.springframework.boot
			spring-boot-starter
		

		
			org.springframework.boot
			spring-boot-starter-test
			test
		
		
		
		
		    com.gitee.sunchenbin.mybatis.actable
		    mybatis-enhance-actable
		    1.0.3
	    
	    
	    
	    
	    
           com.alibaba
           druid
           1.1.8
        
        
        
        
               org.apache.tomcat.embed
               tomcat-embed-jasper
               provided
        	
        
       
           org.springframework.boot
           spring-boot-starter-jdbc
       
        
       
           org.mybatis.spring.boot
           mybatis-spring-boot-starter
           1.3.1
       
 
       
           mysql
           mysql-connector-java
           runtime
       
       
	    
            org.springframework.boot
            spring-boot-devtools
            true 
        
        
         
         
			org.apache.commons
			commons-lang3
			3.4
		
		
			net.sf.json-lib
			json-lib
			2.4
			jdk15
			
				
					commons-logging
					commons-logging
				
			
		
		
	

application.properties配置

mybatis.table.auto=update
mybatis.model.pack=com.example.demo.entity
mybatis.database.type=mysql

spring.datasource.url=jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&characterEncoding=utf-8&useSSL=false
spring.datasource.username=root
spring.datasource.password=自己mysql密码
spring.datasource.driverClassName = com.mysql.cj.jdbc.Driver

 

当mybatis.table.auto=create时，系统启动后，会将所有的表删除掉，然后根据model中配置的结构重新建表，该操作会破坏原有数据

当mybatis.table.auto=update时，系统会自动判断哪些表是新建的，哪些字段要修改类型等，哪些字段要删除，哪些字段要新增，该操作不会破坏原有数据。

当mybatis.table.auto=none时，系统不做任何处理。

mybatis.model.pack这个配置是用来配置要扫描的用于创建表的对象的包名

MyBatisTableConfig

package com.example.demo.config;

import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.beans.factory.config.PropertiesFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import com.alibaba.druid.pool.DruidDataSource;

@Configuration
@ComponentScan(basePackages = {"com.gitee.sunchenbin.mybatis.actable.manager.*"})
public class MyBatisTableConfig {
 
    @Value("${spring.datasource.driverClassName}")
    private String driver;
 
    @Value("${spring.datasource.url}")
    private String url;
 
    @Value("${spring.datasource.username}")
    private String username;
 
    @Value("${spring.datasource.password}")
    private String password;
 
    @Bean
    public PropertiesFactoryBean configProperties() throws Exception{
        PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        propertiesFactoryBean.setLocations(resolver.getResources("classpath*:application.properties"));
        return propertiesFactoryBean;
    }
 
    @Bean
    public DruidDataSource dataSource() {
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName(driver);
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        dataSource.setMaxActive(30);
        dataSource.setInitialSize(10);
        dataSource.setValidationQuery("SELECT 1");
        dataSource.setTestOnBorrow(true);
        return dataSource;
    }
 
    @Bean
    public DataSourceTransactionManager dataSourceTransactionManager() {
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager();
        dataSourceTransactionManager.setDataSource(dataSource());
        return dataSourceTransactionManager;
    }
 
    @Bean
    public SqlSessionFactoryBean sqlSessionFactory() throws Exception{
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource());
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath*:com/gitee/sunchenbin/mybatis/actable/mapping/*/*.xml"));
        sqlSessionFactoryBean.setTypeAliasesPackage("com.example.demo.entity.*");
        return sqlSessionFactoryBean;
    }
 
}

MyBatisMapperScannerConfig需要在配置加载完毕后

package com.example.demo.config;

import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@AutoConfigureAfter(MyBatisTableConfig.class)
public class MyBatisMapperScannerConfig {
 
    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer() throws Exception{
        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
        mapperScannerConfigurer.setBasePackage("com.example.demo.mapper.*;com.gitee.sunchenbin.mybatis.actable.dao.*");
        mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory");
        return mapperScannerConfigurer;
    }
 
}

 

实体层

 

package com.example.demo.entity;

import java.util.Date;

import com.gitee.sunchenbin.mybatis.actable.annotation.Column;
import com.gitee.sunchenbin.mybatis.actable.annotation.Table;
import com.gitee.sunchenbin.mybatis.actable.command.BaseModel;
import com.gitee.sunchenbin.mybatis.actable.constants.MySqlTypeConstant;

@Table(name = "test")
public class Test extends BaseModel{
 
	private static final long serialVersionUID = 5199200306752426433L;

	@Column(name = "id",type = MySqlTypeConstant.INT,length = 11,isKey = true,isAutoIncrement = true)
	private Integer	id;

	@Column(name = "name",type = MySqlTypeConstant.VARCHAR,length = 111)
	private String	name;

	@Column(name = "description",type = MySqlTypeConstant.TEXT)
	private String	description;

	@Column(name = "create_time",type = MySqlTypeConstant.DATETIME)
	private Date	create_time;

	@Column(name = "update_time",type = MySqlTypeConstant.DATETIME)
	private Date	update_time;

	@Column(name = "number",type = MySqlTypeConstant.BIGINT,length = 5)
	private Long	number;

	@Column(name = "lifecycle",type = MySqlTypeConstant.CHAR,length = 1)
	private String	lifecycle;


	public Integer getId(){
		return id;
	}

	public void setId(Integer id){
		this.id = id;
	}

	public String getName(){
		return name;
	}

	public void setName(String name){
		this.name = name;
	}

	public Date getCreate_time(){
		return create_time;
	}

	public void setCreate_time(Date create_time){
		this.create_time = create_time;
	}

	 public Date getUpdate_time(){
	 return update_time;
	 }
	
	 public void setUpdate_time(Date update_time){
	 this.update_time = update_time;
	 }

	public String getDescription(){
		return description;
	}

	public void setDescription(String description){
		this.description = description;
	}

	public Long getNumber(){
		return number;
	}

	public void setNumber(Long number){
		this.number = number;
	}

	public String getLifecycle(){
		return lifecycle;
	}

	public void setLifecycle(String lifecycle){
		this.lifecycle = lifecycle;
	}	
}

 

可能会出现以下问题，主要是因为一些依赖包没有导入

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'startUpHandlerImpl': Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/lang/ArrayUtils
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:139) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:414) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1770) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:849) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at com.example.demo.AutoCreateTableApplication.main(AutoCreateTableApplication.java:10) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_151]
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.4.RELEASE.jar:2.1.4.RELEASE]
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/lang/ArrayUtils
    at com.gitee.sunchenbin.mybatis.actable.manager.system.SysMysqlCreateTableManagerImpl.recursionParents(SysMysqlCreateTableManagerImpl.java:485) ~[mybatis-enhance-actable-1.0.3.jar:na]
    at com.gitee.sunchenbin.mybatis.actable.manager.system.SysMysqlCreateTableManagerImpl.tableFieldsConstruct(SysMysqlCreateTableManagerImpl.java:443) ~[mybatis-enhance-actable-1.0.3.jar:na]
    at com.gitee.sunchenbin.mybatis.actable.manager.system.SysMysqlCreateTableManagerImpl.allTableMapConstruct(SysMysqlCreateTableManagerImpl.java:145) ~[mybatis-enhance-actable-1.0.3.jar:na]
    at com.gitee.sunchenbin.mybatis.actable.manager.system.SysMysqlCreateTableManagerImpl.createMysqlTable(SysMysqlCreateTableManagerImpl.java:91) ~[mybatis-enhance-actable-1.0.3.jar:na]
    at com.gitee.sunchenbin.mybatis.actable.manager.system.SysMysqlCreateTableManagerImpl$$FastClassBySpringCGLIB$$ac2449f9.invoke() ~[mybatis-enhance-actable-1.0.3.jar:na]
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at com.gitee.sunchenbin.mybatis.actable.manager.system.SysMysqlCreateTableManagerImpl$$EnhancerBySpringCGLIB$$4731a1e0.createMysqlTable() ~[mybatis-enhance-actable-1.0.3.jar:na]
    at com.gitee.sunchenbin.mybatis.actable.manager.handler.StartUpHandlerImpl.startHandler(StartUpHandlerImpl.java:53) ~[mybatis-enhance-actable-1.0.3.jar:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_151]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:307) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    ... 22 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.ArrayUtils
    at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_151]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_151]
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_151]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_151]
    ... 43 common frames omitted

 

可能时因为缺少几个依赖包，需要导入(A.CTable开源框架Mybatis增强自动创建表/更新表结构/实现类似hibernate共通的增删改查)

        
			org.apache.commons
			commons-lang3
			3.4
		
		
			net.sf.json-lib
			json-lib
			2.4
			jdk15
			
				
					commons-logging
					commons-logging
				
			
	

 

这里是我springboot+mybatis成功建表的demo的github地址:

https://github.com/WindSearcher/AutoCreateTable