關於檔案的批量上傳和下載
單個檔案的上傳用前端part上傳,下載不能使用ajax,因為json沒有io;
以下案例都能執行!!!
多檔案的上傳可以選擇webuploader(baidu的,需匯入webuploader的js和css),網上有很多案例;
如下案例:
http://blog.csdn.net/u013946285/article/details/51228096
https://www.cnblogs.com/wbyp/p/6574971.html
http://blog.csdn.net/songmaolin_csdn/article/details/74331421
多檔案下載*(zip打包),如下
轉自:http://blog.csdn.net/liweibin_/article/details/8842928
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipOutputStreamDemo {
public static void main(String[] args) throws Exception {
byte[] buffer = new byte[1024];
//生成的ZIP檔名為Demo.zip
String strZipName = "Demo.zip";
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(strZipName));
//需要同時下載的兩個檔案result.txt ,source.txt
File[] file1 = {new File("result.txt"),new File("source.txt")};
for(int i=0;i<file1.length;i++) {
FileInputStream fis = new FileInputStream(file1[i]);
out.putNextEntry(new ZipEntry(file1[i].getName()));
int len;
//讀入需要下載的檔案的內容,打包到zip檔案
while((len = fis.read(buffer))>0) {
out.write(buffer,0,len);
}
out.closeEntry();
fis.close();
}
out.close();
System.out.println("生成Demo.zip成功");
}