代码如下:
package com.x3.gls.util; import com.x3.base.core.exception.BusinessException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Component; import org.springframework.web.client.RestTemplate; import java.util.Base64; /** * 图片远程下载 */ @Component public class RemoteImageUtil { /** * 日志 */ private static final Logger log = LoggerFactory.getLogger(HttpPostUtil.class); /** * 图片远程下载并转换为Base64 * * @param imageUrl * @return */ public static String convertImageUrlToBase64(String imageUrl) { RestTemplate restTemplate = new RestTemplate(); try { ResponseEntity<byte[]> responseEntity = restTemplate.getForEntity(imageUrl, byte[].class); byte[] imageBytes = responseEntity.getBody(); if (imageBytes != null) { return Base64.getEncoder().encodeToString(imageBytes); } else { return null; } } catch (Exception e) { log.debug("RemoteImageUtil-convertImageUrlToBase64-01-异常响应数据:{}", e.getMessage()); throw new BusinessException("RemoteImageUtil-convertImageUrlToBase64-02", "下载文件[" + imageUrl + "]出错:" + e.getMessage(), imageUrl); } } }
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