博客

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import org.springframework.stereotype.Component;

@Component
public class InputStreamUtils {

    //根据图片的路径，把图片转化为流
    public static InputStream getImageStream(String url) {
        try {
            HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
            connection.setReadTimeout(5000);
            connection.setConnectTimeout(5000);
            connection.setRequestMethod("GET");
            if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
                InputStream inputStream = connection.getInputStream();
                return inputStream;
            }
        } catch (IOException e) {
            System.out.println("获取网络图片出现异常，图片路径为：" + url);
            e.printStackTrace();
        }
        return null;
    }
}