StringBuffer s = new StringBuffer(“abc”); //这样初始化出的StringBuffer对象的内容就是字符串”abc”。 1. 2. 3. 需注意,StringBuffer和String属于不同的类型,也不能直接进行强制类型转换,下面的代码都是错误的: StringBuffer s = "abc"; //赋值类型不匹配 StringBuffer s = (StringBuffer)"abc"; ...
在Java中,我们可以使用Base64来进行转换。 importorg.apache.commons.codec.binary.Base64;importjavax.imageio.ImageIO;importjava.awt.image.BufferedImage;importjava.io.ByteArrayInputStream;importjava.io.File;importjava.io.IOException;publicclassBinaryToImage{publicstaticvoidmain(String[]args){Stringbase64Data...
import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.ByteArrayInputStream; import java.io.File; import java.io.IOException; public class StringToImage { public static void main(String[] args) { String text = "Hello, World!"; byte[] bytes = text.getBytes(); ...
String path ="d:/qqq.png";//导入的图片Stringbase="love";//将会用这个字符串里的字符填充图片BufferedImage image = ImageIO.read(newFile(path));//读入图片,并用图片缓冲区对象来接收//双层for循环,遍历图片for(inty =0; y < image.getHeight(); y++) {//先竖向遍历,再横向遍历,即一行一行的找...
import java.awt.image.BufferedImage; import java.io.File; import java.nio.file.Paths; public class ImageDemo { public static void main(String[] args) throws Exception { System.out.println(System.currentTimeMillis()); //输出目录 String rootPath = "/Users/sojson/Downloads/"; ...
public class WqcTestController { public static void createImage(String fileLocation, BufferedImage image) { try { FileOutputStream fos = new FileOutputStream(fileLocation); BufferedOutputStream bos = new BufferedOutputStream(fos); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos); encoder.en...
java swing 把控件映射为BufferedImage 如何把javaswing的可视控件转化为BufferedImage 呢? 直接上代码: /*** * convert JTextArea to image * @param ta * @param destFile * @param format */ public static BufferedImage genericImage(JComponent ta,File destFile,String format){//TODO 如何提高分辨率 ...
{BufferedImage bufferedImg = ImageIO.read(new File(srcPath));flag = ImageIO.write(bufferedImg, formatName, new File(destPath));} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {}return flag;}public static void main(String[]...
//pdf转成图片 publicvoidpdftoIamge(String pdfFile, String outpath)throwsException { InputStream is =newFileInputStream(pdfFile); List<BufferedImage> piclist =newArrayList<BufferedImage>(); Document document =newDocument(); document.setFile(pdfFile); ...
final BufferedImage read = ImageIO.read(new File(filePath)); -- 方式二:基于InputStream字节流(有多种实现,分场景选择) String filePath="D:\\下载\\颜色模式.jpg"; InputStream stream = new FileInputStream(filePath); final BufferedImage read = ImageIO.read(stream); ...