<a href=”xx“> 可以轻松打开web内部的资源如pdf,excel。外部的资源点击无反应。可以采取将外部资源复制到项目中,然后再用<a href="xxx">
文件复制代码:亲测试 txt pdf jpg可以复制。代码在百度上搜到的。
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
public class Main {
public static void main(String[] args) {
copyFile("f://11//22.pdf","f://11//22//22.pdf");
System.out.println("11");
}
public static void copyFile(String oldPath, String newPath) {
try {
int bytesum = 0;
int byteread = 0;
File oldfile = new File(oldPath);
if (oldfile.exists()) { //文件存在时
System.out.println("文件存在");
InputStream inStream = new FileInputStream(oldPath); //读入原文件
FileOutputStream fs = new FileOutputStream(newPath);
byte[] buffer = new byte[1444];
int length;
while ( (byteread = inStream.read(buffer)) != -1) {
bytesum += byteread; //字节数 文件大小
System.out.println(bytesum);
fs.write(buffer, 0, byteread);
}
inStream.close();
}
}
catch (Exception e) {
System.out.println("复制单个文件操作出错");
e.printStackTrace();
}
}
}