- package test.base64;
- 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;
-
-
-
- public class TestCase {
-
- public static void main(String[] args) {
-
- String strImg = GetImageStr();
- System.out.println(strImg);
-
- GenerateImage(strImg);
- }
- public static String GetImageStr() {
- String imgFile = "d:\\java.pdf";
- InputStream in = null;
- byte[] data = null;
-
- try {
- in = new FileInputStream(imgFile);
- data = new byte[in.available()];
- in.read(data);
- in.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
-
- BASE64Encoder encoder = new BASE64Encoder();
- return encoder.encode(data);
- }
- public static boolean GenerateImage(String imgStr) {
- if (imgStr == null){
- return false;
- }
- BASE64Decoder decoder = new BASE64Decoder();
- try {
-
- byte[] b = decoder.decodeBuffer(imgStr);
- for (int i = 0; i < b.length; ++i) {
- if (b[i] < 0) {
- b[i] += 256;
- }
- }
-
- String imgFilePath = "d:\\new.pdf";
- OutputStream out = new FileOutputStream(imgFilePath);
- out.write(b);
- out.flush();
- out.close();
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- }
package test.base64;
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;
/**
* 服务器之间传递图片
*/
public class TestCase {
public static void main(String[] args) {
// 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 strImg = GetImageStr();
System.out.println(strImg);
// 对字节数组字符串进行Base64解码并生成图片
GenerateImage(strImg);
}
public static String GetImageStr() {
String imgFile = "d:\\java.pdf";// 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
}
public static boolean GenerateImage(String imgStr) {
if (imgStr == null){ // 图像数据为空
return false;
}
BASE64Decoder decoder = new BASE64Decoder();
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jpg图片
String imgFilePath = "d:\\new.pdf"; // 新生成的图片
OutputStream out = new FileOutputStream(imgFilePath);
out.write(b);
out.flush();
out.close();
return true;
} catch (Exception e) {
return false;
}
}
}