Mybatis 自定义SqlSessionFactoryBean扫描通配符typeAliasesPackage

Mybatis 自定义SqlSessionFactoryBean扫描通配符typeAliasesPackage http://www.voidcn.com/article/p-srlmacgj-rd.html

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();

@Override

public 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<String> result = new ArrayList<String>();

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();

}

<array>

</array>

</property>

</bean>

</bean>

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Mybatis 自定义SqlSessionFactoryBean扫描通配符typeAliasesPackage

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