Springboot+Mybatis中typeAliasesPackage正则扫描实现方式 Springboot+Mybatis中typeAliasesPacka

Mybatis typeAliasesPackage正则扫描 mybatis默认配置typeAliasesPackage是不支持正则扫描package的，因此需要手动继承org.mybatis.spring.SqlSessionFactoryBean，自己实现正则扫描，方法和传统的spring+mybatis没什么区别，不同的是一个需要继承类一个是使用的扫描实现。
对于两个或多个扫描路径，例：

cn.com.onethird.integration.entity
cn.com.onethird.business.entity

application.properties配置Mybatis 如下

mybatis.typeAliasesPackage=cn.com.onethird.*.*.entitymybatis.mapperLocations=classpath:mapper/*.xml

package cn.com.onethird.nursinghome; import java.io.IOException; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Properties; import javax.sql.DataSource; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.annotation.MapperScan; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.SpringApplication; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.PropertySource; import org.springframework.core.env.Environment; import org.springframework.core.io.Resource; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.core.io.support.ResourcePatternResolver; import org.springframework.core.type.classreading.CachingMetadataReaderFactory; import org.springframework.core.type.classreading.MetadataReader; import org.springframework.core.type.classreading.MetadataReaderFactory; import org.springframework.util.ClassUtils; import com.Application; /** * * @Title: MyBatisConfig.java * * @Package * @Description: mybtis实现正则扫描java bean包 * * @author * @date * @version V1.0 */ @Configuration@PropertySource("classpath:application.properties")public class MyBatisConfig {@Autowiredprivate Environment env; static final String DEFAULT_RESOURCE_PATTERN = "**/*.class"; public static String setTypeAliasesPackage(String typeAliasesPackage) {ResourcePatternResolver resolver = (ResourcePatternResolver) new PathMatchingResourcePatternResolver(); MetadataReaderFactory metadataReaderFactory = new CachingMetadataReaderFactory(resolver); typeAliasesPackage = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX+ ClassUtils.convertClassNameToResourcePath(typeAliasesPackage)+ "/" + DEFAULT_RESOURCE_PATTERN; try {List result = new ArrayList(); Resource[] resources = resolver.getResources(typeAliasesPackage); if (resources != null && resources.length > 0) {MetadataReader metadataReader = null; for (Resource resource : resources) {if (resource.isReadable()) {metadataReader = metadataReaderFactory.getMetadataReader(resource); try {result.add(Class.forName(metadataReader.getClassMetadata().getClassName()).getPackage().getName()); } catch (ClassNotFoundException e) {e.printStackTrace(); }}}}if (result.size() > 0) {HashSet h = new HashSet(result); result.clear(); result.addAll(h); typeAliasesPackage = String.join("," ,(String[]) result.toArray(new String[0])); } else {throw new RuntimeException("mybatis typeAliasesPackage 路径扫描错误, 参数typeAliasesPackage:" + typeAliasesPackage + "未找到任何包"); }} catch (IOException e) {e.printStackTrace(); }return typeAliasesPackage; } @Beanpublic SqlSessionFactory sqlSessionFactory(DataSource dataSource)throws Exception {System.out.println(">>>>>>>>>>>配置[typeAliasesPackage,mapperLocations]START>>>>>>>>>>>>>>"); Properties props = new Properties(); String typeAliasesPackage = env.getProperty("mybatis.typeAliasesPackage"); String mapperLocations = env.getProperty("mybatis.mapperLocations"); typeAliasesPackage=setTypeAliasesPackage(typeAliasesPackage); final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean(); sessionFactory.setDataSource(dataSource); sessionFactory.setTypeAliasesPackage(typeAliasesPackage); sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(mapperLocations)); System.out.println(">>>>>>>>>>>配置[typeAliasesPackage,mapperLocations]END>>>>>>>>>>>>>>"); return sessionFactory.getObject(); } public static void main(String[] args) throws Exception {setTypeAliasesPackage("cn.com.onethird.*.*.entity"); }}

Mybatis 自定义扫描通配符typeAliasesPackage
typeAliasesPackage 默认只能扫描某一个路径下，或以逗号等分割的几个路径下的内容，不支持通配符和正则，采用重写的方式解决

package com.xxxx.xxx.util.common; import com.xxxx.xxx.util.LogUtil; import org.apache.commons.lang3.StringUtils; import org.mybatis.spring.SqlSessionFactoryBean; import org.slf4j.Logger; import org.springframework.core.io.Resource; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.core.io.support.ResourcePatternResolver; import org.springframework.core.type.classreading.CachingMetadataReaderFactory; import org.springframework.core.type.classreading.MetadataReader; import org.springframework.core.type.classreading.MetadataReaderFactory; import org.springframework.util.ClassUtils; import java.io.IOException; import java.util.ArrayList; import java.util.List; /** * Created by Administrator on 2015/10/6. */public class PackagesSqlSessionFactoryBean extends SqlSessionFactoryBean {static final String DEFAULT_RESOURCE_PATTERN = "**/*.class"; private static Logger logger = LogUtil.get(); @Overridepublic void setTypeAliasesPackage(String typeAliasesPackage) {ResourcePatternResolver resolver = (ResourcePatternResolver) new PathMatchingResourcePatternResolver(); MetadataReaderFactory metadataReaderFactory = new CachingMetadataReaderFactory(resolver); typeAliasesPackage = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX +ClassUtils.convertClassNameToResourcePath(typeAliasesPackage) + "/" + DEFAULT_RESOURCE_PATTERN; //将加载多个绝对匹配的所有Resource//将首先通过ClassLoader.getResource("META-INF")加载非模式路径部分//然后进行遍历模式匹配try {List result = new ArrayList(); Resource[] resources =resolver.getResources(typeAliasesPackage); if(resources != null && resources.length > 0){MetadataReader metadataReader = null; for(Resource resource : resources){if(resource.isReadable()){metadataReader =metadataReaderFactory.getMetadataReader(resource); try {result.add(Class.forName(metadataReader.getClassMetadata().getClassName()).getPackage().getName()); } catch (ClassNotFoundException e) {e.printStackTrace(); }}}}if(result.size() > 0) {super.setTypeAliasesPackage(StringUtils.join(result.toArray(), ",")); }else{logger.warn("参数typeAliasesPackage:"+typeAliasesPackage+"，未找到任何包"); }//logger.info("d"); } catch (IOException e) {e.printStackTrace(); }}}

【Springboot+Mybatis中typeAliasesPackage正则扫描实现方式】以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。