ZIP and TAR fomats (and the old AR format) allow file append without a full rewrite. However: The Java archive classes DO NOT support this mode of operation. File append is likely to result in multiple copies of a file in the archive if you append an…

1.错误描述 java.util.zip.ZipException:ZIP file must have at least one entry 2.错误原因 由于在导出文件时,要将导出的文件压缩到压缩文件中,但是导出文件为空时,压缩包会报错 3.解决办法 (1)路径不正确,使用File.separator方法取得路径 (2)查看使用File定义输入文件的时候,路径中是否存在文件或文件夹…

1.项目环境 IntelliJ IDEA2018.1.6 apache-tomcat-8.0.53 基于springboot开发的项目 maven3.5.3 2.出现问题 从svn同步下项目 启动tomcat运行每次都提示以下错误: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/…

严重: Failed to processes JAR found at URL [jar:file:/D:/tools/apache-tomcat-7.0.64_2/webapps/bbs/WEB-INF/lib/org.restlet.ext.servlet-2.3.0.jar!/] for static resources to be included in context with name [jar:file:/D:/tools/apache-tomcat-7.0.64_2/webap…

今天使用POI解析XLS,报错如下: Servlet.service() for servlet [rest] in context with path [/cetBrand] threw exception [Request processing failed; nested exception is org.apache.poi.openxml4j.exceptions.InvalidOperationException: Can't open the specified file: 'd:…

1.问题描述:mybranch分支代码和master分支的代码一模一样,mybranch代码部署到服务器上没有任何问题,而master代码部署到服务器上运行不起来. 2.解决办法: (1)登陆服务器启动日志:发现 Caused by: java.util.zip.ZipException: zip file is empty 错误. (2)这里面说明你的包有问题,我下载了mybranch和master部署到服务器上的包,发现lib里有问题.检查了一下是更新包之后没有deploy. 3.总结: 其…

include my own version for your reference. We use this one to zip up photos to download so it works with various unzip programs. It preserves the directory structure and timestamps. public static void createZipFile(File srcDir, OutputStream out, bool…

reference :  http://www.open-open.com/lib/view/open1381641653833.html Java API中的import java.util.zip.*;包下包含了Java对于压缩文件的所有相关操作. 我们可以使用该包中的方法,结合IO中的相关知识,进行文件的压缩和解压缩相关操作. ZipFile java中的每一个压缩文件都是可以使用ZipFile来进行表示的. File file = new File("F:/zippath.zip&quo…

一.简述 解压技术和压缩技术正好相反,解压技术要用到的类:由ZipInputStream通过read方法对数据解压,同时需要通过CheckedInputStream设置冗余校验码,如: CheckedInputStream cis = new CheckedInputStream(new FileInputStream( srcFile), new CRC32()); ZipInputStream zis = new ZipInputStream(cis); 需要注意的是,在构建解压文件时,需要…

一.简述 zip用于压缩和解压文件.使用到的类有:ZipEntry  ZipOutputStream 二.具体实现代码 package com.joyplus.test; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.…