• java 实现多个文件的Zip包的生成


    最近在项目中遇到多个文件的达成Zip包,由于对这块不熟,在网上找到一个,现在忘了找的谁的,如果您发现了,请告诉我你的链接,我指明出处

    下面是相关代码:

    package run.utils;
    import java.io.BufferedInputStream;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.util.zip.CRC32;
    import java.util.zip.CheckedOutputStream;
    import java.util.zip.ZipEntry;
    import java.util.zip.ZipOutputStream;
    
    public class ZipCompressor {   
        static final int BUFFER = 8192;   
      
        private File zipFile;   
        
        public ZipCompressor(String pathName) {   
            zipFile = new File(pathName);   
        }   
        public void compress(String... pathName) { 
        	ZipOutputStream out = null;   
        	try {  
    			FileOutputStream fileOutputStream = new FileOutputStream(zipFile);   
    			CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,   
    					new CRC32());   
    			out = new ZipOutputStream(cos);   
    			String basedir = ""; 
    			for (int i=0;i<pathName.length;i++){
    				compress(new File(pathName[i]), out, basedir);   
    			}
    	    	out.close();  
        	} catch (Exception e) {   
    			throw new RuntimeException(e);   
    		} 
        }   
        public void compress(String srcPathName) {   
            File file = new File(srcPathName);   
            if (!file.exists())   
                throw new RuntimeException(srcPathName + "不存在!");   
            try {   
                FileOutputStream fileOutputStream = new FileOutputStream(zipFile);   
                CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,   
                        new CRC32());   
                ZipOutputStream out = new ZipOutputStream(cos);   
                String basedir = "";   
                compress(file, out, basedir);   
                out.close();   
            } catch (Exception e) {   
                throw new RuntimeException(e);   
            }   
        }   
      
        private void compress(File file, ZipOutputStream out, String basedir) {   
            /* 判断是目录还是文件 */  
            if (file.isDirectory()) {   
                System.out.println("压缩:" + basedir + file.getName());   
                this.compressDirectory(file, out, basedir);   
            } else {   
                System.out.println("压缩:" + basedir + file.getName());   
                this.compressFile(file, out, basedir);   
            }   
        }   
      
        /** 压缩一个目录 */  
        private void compressDirectory(File dir, ZipOutputStream out, String basedir) {   
            if (!dir.exists())   
                return;   
      
            File[] files = dir.listFiles();   
            for (int i = 0; i < files.length; i++) {   
                /* 递归 */  
                compress(files[i], out, basedir + dir.getName() + "/");   
            }   
        }   
      
        /** 压缩一个文件 */  
        private void compressFile(File file, ZipOutputStream out, String basedir) {   
            if (!file.exists()) {   
                return;   
            }   
            try {   
                BufferedInputStream bis = new BufferedInputStream(   
                        new FileInputStream(file));   
                ZipEntry entry = new ZipEntry(basedir + file.getName());   
                out.putNextEntry(entry);   
                int count;   
                byte data[] = new byte[BUFFER];   
                while ((count = bis.read(data, 0, BUFFER)) != -1) {   
                    out.write(data, 0, count);   
                }   
                bis.close();   
            } catch (Exception e) {   
                throw new RuntimeException(e);   
            }   
        }   
       public static void main(String[] args) {   
            ZipCompressor zc = new ZipCompressor("C:/Users/wj/Desktop/aaa.zip");   
            zc.compress("C:/Users/wj/Desktop/water.js","C:/Users/wj/Desktop/index.jsp");  
        }
    } 
    

      

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  • 原文地址:https://www.cnblogs.com/onfly/p/5824071.html
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