誰做出來了，源碼能叫我看看么？附帶我寫的，求改錯

package com.zxing_imooc;

import java.io.File;

import java.nio.file.Path;

import java.util.HashMap;

import com.google.zxing.BarcodeFormat;

import com.google.zxing.EncodeHintType;

import com.google.zxing.MultiFormatWriter;

import com.google.zxing.client.j2se.MatrixToImageWriter;

import com.google.zxing.common.BitMatrix;

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class CreatCode {

public static void main(String[] args) {

int height = 300;

int width = 300;

String format = " png";

String content = "www.baidu.com";

HashMap hints = new HashMap();

hints.put(EncodeHintType.CHARACTER_SET, "utf-8" );

hints.put(EncodeHintType.ERROR_CORRECTION,ErrorCorrectionLevel.M);

? ? try {

? ? ? ?BitMatrix bitMatrix = new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE,width,height,hints);

? ? ? ?Path file = new File("D:/123/image.png").toPath();

MatrixToImageWriter.writeToPath(bitMatrix, format, file);

? ? }

catch(Exception e)

{

e.printStackTrace();

}

}

}