cn.majingjing.http.client.util.HttpUtils Maven / Gradle / Ivy

Go to download
package cn.majingjing.http.client.util;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;

/**
 * Http工具包
 *
 * @author MaMarion
 * @date 2020/4/24
 */
public class HttpUtils {

    /**
     * 将输入流转换成字节数组
     *
     * @param input 输入流
     * @return byte[]
     * @throws IOException 转换出错将抛出此异常
     */
    public static byte[] toByteArray(InputStream input) throws IOException {
        if (null == input) {
            return new byte[0];
        }
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        byte[] buffer = new byte[4096];
        int n = 0;
        while (-1 != (n = input.read(buffer))) {
            output.write(buffer, 0, n);
        }
        return output.toByteArray();
    }

    /**
     * 关闭输入流
     *
     * @param inputStream 输入流
     */
    public static void close(InputStream inputStream) {
        if (null != inputStream) {
            try {
                inputStream.close();
            } catch (IOException ignored) {
            }
        }
    }

    /**
     * 关闭输出流
     *
     * @param outputStream 输出流
     */
    public static void close(OutputStream outputStream) {
        if (null != outputStream) {
            try {
                outputStream.close();
            } catch (IOException ignored) {
            }
        }
    }

    /**
     * http状态码是否为成功码（小于400）
     *
     * @param httpStatus http状态码
     * @return boolean <400则返回true，否则返回false
     */
    public static boolean isSuccess(int httpStatus) {
        return httpStatus == HttpURLConnection.HTTP_OK;
    }


}