Question

Java如何把二进制数据转换成图片？？？

<?xml version="1.0" encoding="utf-8" ?>
<base64Binary xmlns="http://WebXml.com.cn/">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</base64Binary>

Answer 1

直接上代码了，应该看得懂吧，str字符串的内容就是你XML里的内容。生成的a.jpeg我也给上传上来了，是个报表噢

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import sun.misc.BASE64Decoder;

public class CodeTest {

 public static void main(String[] args) throws IOException {

  String str = "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";

  BASE64Decoder decoder=new BASE64Decoder();

  byte[] bytes=decoder.decodeBuffer(str);

  File file=new File("D:/a.jpeg");

  FileOutputStream fos=new FileOutputStream(file);

  fos.write(bytes);

  fos.flush();

  fos.close();

 }

}