package com.jcdm.framework.config;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.List;
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import javax.sql.DataSource;
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import org.apache.ibatis.io.VFS;
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import org.apache.ibatis.session.SqlSessionFactory;
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import org.mybatis.spring.SqlSessionFactoryBean;
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import org.mybatis.spring.boot.autoconfigure.SpringBootVFS;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.env.Environment;
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import org.springframework.core.io.DefaultResourceLoader;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
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import org.springframework.core.io.support.ResourcePatternResolver;
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import org.springframework.core.type.classreading.CachingMetadataReaderFactory;
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import org.springframework.core.type.classreading.MetadataReader;
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import org.springframework.core.type.classreading.MetadataReaderFactory;
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import org.springframework.util.ClassUtils;
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import com.jcdm.common.utils.StringUtils;
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/**
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* Mybatis支持*匹配扫描包
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*
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* @author jc
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*/
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@Configuration
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public class MyBatisConfig
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{
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@Autowired
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private Environment env;
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static final String DEFAULT_RESOURCE_PATTERN = "**/*.class";
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public static String setTypeAliasesPackage(String typeAliasesPackage)
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{
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ResourcePatternResolver resolver = (ResourcePatternResolver) new PathMatchingResourcePatternResolver();
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MetadataReaderFactory metadataReaderFactory = new CachingMetadataReaderFactory(resolver);
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List<String> allResult = new ArrayList<String>();
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try
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{
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for (String aliasesPackage : typeAliasesPackage.split(","))
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{
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List<String> result = new ArrayList<String>();
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aliasesPackage = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX
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+ ClassUtils.convertClassNameToResourcePath(aliasesPackage.trim()) + "/" + DEFAULT_RESOURCE_PATTERN;
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Resource[] resources = resolver.getResources(aliasesPackage);
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if (resources != null && resources.length > 0)
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{
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MetadataReader metadataReader = null;
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for (Resource resource : resources)
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{
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if (resource.isReadable())
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{
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metadataReader = metadataReaderFactory.getMetadataReader(resource);
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try
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{
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result.add(Class.forName(metadataReader.getClassMetadata().getClassName()).getPackage().getName());
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}
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catch (ClassNotFoundException e)
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{
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e.printStackTrace();
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}
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}
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}
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}
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if (result.size() > 0)
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{
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HashSet<String> hashResult = new HashSet<String>(result);
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allResult.addAll(hashResult);
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}
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}
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if (allResult.size() > 0)
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{
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typeAliasesPackage = String.join(",", (String[]) allResult.toArray(new String[0]));
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}
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else
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{
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throw new RuntimeException("mybatis typeAliasesPackage 路径扫描错误,参数typeAliasesPackage:" + typeAliasesPackage + "未找到任何包");
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}
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}
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catch (IOException e)
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{
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e.printStackTrace();
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}
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return typeAliasesPackage;
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}
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public Resource[] resolveMapperLocations(String[] mapperLocations)
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{
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ResourcePatternResolver resourceResolver = new PathMatchingResourcePatternResolver();
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List<Resource> resources = new ArrayList<Resource>();
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if (mapperLocations != null)
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{
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for (String mapperLocation : mapperLocations)
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{
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try
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{
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Resource[] mappers = resourceResolver.getResources(mapperLocation);
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resources.addAll(Arrays.asList(mappers));
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}
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catch (IOException e)
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{
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// ignore
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}
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}
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}
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return resources.toArray(new Resource[resources.size()]);
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}
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@Bean
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public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception
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{
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String typeAliasesPackage = env.getProperty("mybatis.typeAliasesPackage");
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String mapperLocations = env.getProperty("mybatis.mapperLocations");
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String configLocation = env.getProperty("mybatis.configLocation");
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typeAliasesPackage = setTypeAliasesPackage(typeAliasesPackage);
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VFS.addImplClass(SpringBootVFS.class);
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final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
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sessionFactory.setDataSource(dataSource);
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sessionFactory.setTypeAliasesPackage(typeAliasesPackage);
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sessionFactory.setMapperLocations(resolveMapperLocations(StringUtils.split(mapperLocations, ",")));
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sessionFactory.setConfigLocation(new DefaultResourceLoader().getResource(configLocation));
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return sessionFactory.getObject();
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}
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}
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