java获取所有的类

package com.hhwy;

import org.junit.Test;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import java.io.IOException;

public class TestJunit {

    @Test
    public void test() throws IOException {
        ResourcePatternResolver rpr = new PathMatchingResourcePatternResolver();
        //Resource[] resources = rpr.getResources("classpath*: **/*.class"); // classpath*:带*号会找jar中的class
        Resource[] resources = rpr.getResources("classpath: **/*.class"); // classpath*:不带*号只找自定义的类的class
        for (Resource res:resources){
            String className = res.getURL().getPath();
            className = className.split("(classes/)|(!/)")[1];
            className = className.replace("/", ".").replace(".class", "");
            System.err.println(className);
        }
    }
}