java根据图片的url地址下载图片到本地

直接上代码：

String str = "http://192.168.1.158/estun_cs/banner_img/head_pic.jpg";
URL url = new URL(str);
InputStream inputStream = null;
try {
    inputStream = url.openStream();

}catch (Exception e){
    e.printStackTrace();
}
byte[] bytes = IOUtils.toByteArray(inputStream);
File imageFile = new File("/Users/edz/Desktop/NEW2/" + "test.png");
//创建输出流
FileOutputStream outStream = new FileOutputStream(imageFile);
//写入数据
outStream.write(bytes);
//关闭输出流
outStream.close();