package com.yuanchu.limslaboratory.utils;
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import lombok.extern.slf4j.Slf4j;
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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.stereotype.Component;
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import org.springframework.util.ClassUtils;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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import java.io.File;
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import java.net.JarURLConnection;
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import java.net.URL;
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/**
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* @author 张宾
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*/
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@Component
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@Slf4j
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public class MyClassUtil {
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private final static String RESOURCE_PATTERN = "/**/*.class";
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/**
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* 通过包名获取项目包下所有类
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*
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* @param BASE_PACKAGE 包名
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* @return
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*/
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public static List<Class<?>> getClassList(String BASE_PACKAGE) {
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List<Class<?>> classes = new ArrayList<>();
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//spring工具类，可以获取指定路径下的全部类
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ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
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try {
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String pattern = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX +
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ClassUtils.convertClassNameToResourcePath(BASE_PACKAGE) + RESOURCE_PATTERN;
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Resource[] resources = resourcePatternResolver.getResources(pattern);
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//MetadataReader 的工厂类
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MetadataReaderFactory readerfactory = new CachingMetadataReaderFactory(resourcePatternResolver);
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for (Resource resource : resources) {
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//用于读取类信息
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MetadataReader reader = readerfactory.getMetadataReader(resource);
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//扫描到的class
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String classname = reader.getClassMetadata().getClassName();
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log.info("classname={}", classname);
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Class<?> clazz = Class.forName(classname);
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classes.add(clazz);
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}
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} catch (Exception e) {
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log.error("获取class异常:", e);
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}
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return classes;
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}
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}
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