寻找类冲突的神奇代码

来源：互联网发布：大连交通大学网络平台编辑：程序博客网时间：2024/05/21 08:03

当项目碰到类冲突，真的很恼火，

Caused by: java.lang.NoSuchMethodError: com.BossPkgHead2.<init>(JLjava/lang/String;)V

于是有了下面这个做法：

<%@ page language="java" contentType="text/html; charset=GBK"pageEncoding="GBK"%><%@page import="org.springframework.core.io.support.PathMatchingResourcePatternResolver"%><%@page import="org.springframework.core.io.Resource"%><%PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();Resource[] resources = resolver.getResources("classpath*:/com/BossPkgHead2.class");out.println("test:" + resources.length + "<br>");for (Resource resource : resources){out.println(resource.getURI() + "<br>");}%>

将jsp放到项目中访问一下，通过resolver取获取指定的class文件，可以得到类冲突的具体描述：

test:2jar:file:/usr/local/brand/commonlib/com.common-2.0.0.jar!/com/BossPkgHead2.classjar:file:/usr/local/brand/commonlib/com.protocol-1.0.0.jar!/com/BossPkgHead2.class

raywu同学确实比较高，呵呵。

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