java下载网络图片

import java.io.DataInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import java.net.URL;

public class Test {

public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
String imageUrl = "在此处填写照片URL";
URL url = new URL(imageUrl);
//打开网络输入流
DataInputStream dis = new DataInputStream(url.openStream());
String newImageName="C://image/1.jpg";
//建立一个新的文件
FileOutputStream fos = new FileOutputStream(new File(newImageName));
byte[] buffer = new byte[1024];
int length;
//开始填充数据
while((length = dis.read(buffer))>0){
fos.write(buffer,0,length);
}
dis.close();
fos.close();
}

}