package com.lance.application.utils;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.springframework.util.Base64Utils;
public class PicUtils {
public static void main(String[] args) {
try {
String result = GetUrlImageToBase64("http://wx.qlogo.cn/mmopen/LNbf7sBg8knI4jl9d59XJsSm7mKFmKjS6SgOp4eZZU3zdJlUuHibGFWkEBia2nLJCeywKpZic5WicQunTh6ZsicsUmlDGUDynxEhU/0");
System.out.println(result);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static String GetUrlImageToBase64(String url) throws Exception {
if (url == null || "".equals(url.trim()))
return null;
URL u = new URL(url);
// 打开图片路径
HttpURLConnection conn = (HttpURLConnection) u.openConnection();
// 设置请求方式为GET
conn.setRequestMethod("GET");
// 设置超时响应时间为5秒
conn.setConnectTimeout(5000);
conn.setReadTimeout(5000);
// 通过输入流获取图片数据
InputStream inStream = conn.getInputStream();
ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
byte[] buff = new byte[1024];
int rc = 0;
while ((rc = inStream.read(buff, 0, 1024)) > 0) {
swapStream.write(buff, 0, rc);
}
byte[] in2b = swapStream.toByteArray();
// 读取图片字节数组
inStream.close();
// 返回Base64编码过的字节数组字符串
String result = Base64Utils.encodeToString(in2b);
String res = "data:image/jpg;base64,"+result;
return res;
}
}
图片url转base64
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转载自blog.csdn.net/qq_16876503/article/details/78751621
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