package com.guanglan.util; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.URL; import java.net.URLConnection; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.jsoup.select.Elements; public class DownLoadPic { public void getDoc() throws IOException{
File f = new File("E://imgs");
if(!f.exists()){
f.mkdirs();
}
//以网易为例子
Document doc = Jsoup.connect("http://www.163.com/").get(); //获取后缀为png和jpg的图片的元素集合 Elements pngs = doc.select("img[src~=(?i)\\.(png|jpe?g)]"); //遍历元素 for(Element e : pngs){ String src=e.attr("src");//获取img中的src路径 //获取后缀名 String imageName = src.substring(src.lastIndexOf("/") + 1,src.length()); //连接url URL url = new URL(src); URLConnection uri=url.openConnection(); //获取数据流 InputStream is=uri.getInputStream(); //写入数据流 OutputStream os = new FileOutputStream(new File("E://imgs", imageName));
byte[] buf = new byte[1024];
int l=0;
while((l=is.read(buf))!=-1){
os.write(buf, 0, l);
}
}
}
public static void main(String[] args) throws IOException {
new DownLoadPic().getDoc(); //调用方法
}
}