63 lines
2.0 KiB
Java
63 lines
2.0 KiB
Java
package com.gxwebsoft.common.core.utils;
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import cn.hutool.core.codec.Base64Encoder;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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public class ImageUtil {
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public static String ImageBase64(String imgUrl) {
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URL url = null;
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InputStream is = null;
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ByteArrayOutputStream outStream = null;
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HttpURLConnection httpUrl = null;
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try{
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url = new URL(imgUrl);
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httpUrl = (HttpURLConnection) url.openConnection();
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httpUrl.connect();
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httpUrl.getInputStream();
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is = httpUrl.getInputStream();
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outStream = new ByteArrayOutputStream();
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//创建一个Buffer字符串
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byte[] buffer = new byte[1024];
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//每次读取的字符串长度，如果为-1，代表全部读取完毕
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int len = 0;
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//使用一个输入流从buffer里把数据读取出来
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while( (len=is.read(buffer)) != -1 ){
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//用输出流往buffer里写入数据，中间参数代表从哪个位置开始读，len代表读取的长度
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outStream.write(buffer, 0, len);
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}
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// 对字节数组Base64编码
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return new Base64Encoder().encode(outStream.toByteArray());
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}catch (Exception e) {
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e.printStackTrace();
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}
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finally{
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if(is != null)
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{
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try {
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is.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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if(outStream != null)
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{
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try {
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outStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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if(httpUrl != null)
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{
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httpUrl.disconnect();
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}
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}
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return imgUrl;
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}
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}
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