Mybatis 自定义SqlSessionFactoryBean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

import org.mybatis.spring.SqlSessionFactoryBean;
import org.slf4j.LoggerFactory;
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.util.ArrayList;
import java.util.List;

/**
 * @author Lucia
 * @description
 * @date 2018/7/24
 */
public class Test extends SqlSessionFactoryBean {

    static final String DEFAULT_RESOURCE_APATTERN = "**/*.class";

    private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(Test.class);

    @Override
    public void setTypeAliasesPackage(String typeAliasesPackage) {
        ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
        MetadataReaderFactory metadataReaderFactory = new CachingMetadataReaderFactory(resourcePatternResolver);
        typeAliasesPackage = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(typeAliasesPackage)
                + "/" + DEFAULT_RESOURCE_APATTERN;


        try {
            List<String> result = new ArrayList<String>();
            //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
            Resource[] resources = resourcePatternResolver.getResources(typeAliasesPackage);
            if (resources != null && resources.length > 0) {
                MetadataReader metadataReader = null;
                //然后进行遍历模式匹配
                for (Resource resource : resources) {
                    if (resource.isReadable()) {
                        metadataReader = metadataReaderFactory.getMetadataReader(resource);
                        try {
                            result.add(Class.forName(metadataReader.getClassMetadata().getClassName()).getPackage().getName());
                        } catch (ClassNotFoundException e1) {
                            e1.printStackTrace();
                        }
                    }
                }
            }
            if (result.size() > 0) {
                super.setTypeAliasesPackage(org.apache.commons.lang3.StringUtils.join(result.toArray(), ","));
            } else {
                LOGGER.info("参数typeAliasesPackage:" + typeAliasesPackage + "，未找到任何包");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}