project_process_houtai/src/main/java/com/template/common/utils/imageUtils.java

package com.template.common.utils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Base64;

/**
 * @Author: binguo
 * @Date: 2024/1/9 星期二 15:17
 * @Description: com.template.common.utils
 * @Version: 1.0
 */
public class imageUtils {

    public static String getBase64Url(String imagePath){
        ByteArrayOutputStream outPut = new ByteArrayOutputStream();
        byte[] data = new byte[1024];
        try {
            // 创建URL
            URL url = new URL(imagePath);
            // 创建链接
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(10 * 1000);

            if(conn.getResponseCode() != 200) {
                return "fail";//连接失败/链接失效/图片不存在
            }
            InputStream inStream = conn.getInputStream();
            int len = -1;
            while ((len = inStream.read(data)) != -1) {
                outPut.write(data, 0, len);
            }
            inStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        // 对字节数组Base64编码
        byte[] encode = Base64.getEncoder().encode(outPut.toByteArray());
        String res = new String(encode);
        return res;
    }
    //https://www.jb51.net/program/288342ppk.htm 图片压缩大小
}