import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.Calendar;
import java.util.Random;
import javax.servlet.http.HttpServletRequest;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import sun.misc.BASE64Decoder;
public class ImageUntil {
public boolean saveBase64File(String username,String imgStr) {
// 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;
imgStr = imgStr.replaceAll("data:image/jpeg;base64,", "");
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jpeg图片
String fileName=username + ".jpg";
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
File f2=new File(System.getProperty("catalina.home")+ File.separator+"webapps"+File.separator+"uploadFile");
boolean exists2 = f2.exists();
if(!exists2){
f2.mkdirs();
}
//String realPath=request.getSession().getServletContext().getRealPath("uploadFile/touxiang")+ File.separator;
String tomcaturl=System.getProperty("catalina.home")+ File.separator+"webapps"+File.separator+"uploadFile"+File.separator+"touxiang"+ File.separator;
File f1=new File(System.getProperty("catalina.home")+ File.separator+"webapps"+File.separator+"uploadFile"+File.separator+"touxiang");
boolean exists = f1.exists();
if(!exists){
f1.mkdirs();
}
File file = new File(tomcaturl+fileName);
OutputStream out = new FileOutputStream(file);
out.write(b);
out.flush();
out.close();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}