package com.dzqc.yx.util;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
/**
* base64工具类
* @author jiajia
*
*/
@SuppressWarnings("restriction")
public class Base64Test {
public static void main(String[] args) {
String strImg = GetImageStr();
System.out.println(strImg);
}
// 图片转化成base64字符串
public static String GetImageStr() {// 将图片文件转化为字节数组字符串，并对其进行Base64编码处理
String imgFile = "D:\\test\\a.png";// 待处理的图片
InputStream in = null;
byte[] data = null;
// 读取图片字节数组
try {
in = new FileInputStream(imgFile);
data = new byte[in.available()];
in.read(data);
in.close();
} catch (IOException e) {
e.printStackTrace();
}
// 对字节数组Base64编码
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(data);// 返回Base64编码过的字节数组字符串
}
// base64字符串转化成图片
public boolean GenerateImage(String imgStr,String filepath) { // 对字节数组字符串进行Base64解码并生成图片
if (imgStr == null) // 图像数据为空
return false;
BASE64Decoder decoder = new BASE64Decoder();
OutputStream out=null;
try {
// Base64解码
byte[] b = decoder.decodeBuffer(imgStr);
for (int i = 0; i < b.length; ++i) {
if (b[i] < 0) {// 调整异常数据
b[i] += 256;
}
}
// 生成jpeg图片
out = new FileOutputStream(filepath);
out.write(b);
out.flush();
return true;
} catch (Exception e) {
return false;
}finally {
if(out!=null) {
try {
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}package com.dzqc.yx.img;
import com.dzqc.yx.util.Base64Test;
public class Base64TestMain {
public static void main(String[] args) {
test("data:image/png;base64,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");
}
public static void test(String file) {
String suffix = "."+file.substring(file.indexOf("/")+1,file.indexOf(";"));
String s = file.substring(file.indexOf(",")+1,file.length());
new Base64Test().GenerateImage(s, "D://test/test//a"+suffix);
}
}