解析zip文件-不生成临时文件的办法

package com.test;

import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;





public class ReadData {
	 public static void main(String args[])throws Exception{  
		         File f = new File("/home/upload/TwitterBig.zip");  
		         InputStream in = new FileInputStream(f);  
		         byte bytes[]=new byte[(int)f.length()];     //创建合适文件大小的数组  
		         in.read(bytes);    //读取文件中的内容到b[]数组  
		         in.close();  
		        
		         ByteArrayInputStream fis = new ByteArrayInputStream(bytes); 
		         ZipInputStream zis = new ZipInputStream(fis);
		         
			     ZipEntry ze = null;
			     
			     while((ze = zis.getNextEntry()) != null){
			        	String name = ze.getName();
			        	System.out.println("File name****"+ze.getName());	
			        				        	
						long size = ze.getSize();
								        	
						byte[] binary = readZipEntry(zis,size);
			        	writeFile(binary,"/home/upload/parese/"+ze.getName());			        	
			     }
		         
		         
	 }  
	 
		private static byte[] readZipEntry(ZipInputStream zipIn, long size)
				throws Exception {
			ByteArrayOutputStream output = new ByteArrayOutputStream();
			int oneByte = -1;
			long offset = 0L;			
			
			try {								
				while ((oneByte = zipIn.read()) > -1) {
					output.write((byte) oneByte);
					offset++;
					if (offset == size) {
						break;
					}
				}
			} finally {
				output.close();
			}
			return output.toByteArray();
		}
	 
		private static void writeFile(byte[] content, String filename) throws IOException {
			 
			File file = new File(filename);
	 
			if (!file.exists()) {
				file.createNewFile();
			}
	 
			FileOutputStream fop = new FileOutputStream(file);
			BufferedOutputStream buff = new BufferedOutputStream(fop);		
	 
			buff.write(content);
			buff.flush();
			buff.close(); 
		}
}

评论

2 楼 wen_pp 2015-01-05  

PrinceXR 写道

如果zip包里文件名为中文zis.getNextEntry()这句话会不会报错？

哦，这个没有试过中文。英文我们的项目是英文的

1 楼 PrinceXR 2014-08-06  

如果zip包里文件名为中文zis.getNextEntry()这句话会不会报错？