3
我寫在本地服務器端的服務將接受來自UI應用程序中的打印機名稱和其他投入和打印HTML文件所需的網絡打印機。它不是桌面應用程序。我有我讀入一個字符串處理後的HTML文件,並希望它的輸出發送到所需的打印機。我能找到打印HTML輸出到打印機上的服務器應用程序
1的方式是通過閱讀它到JEditorPane創建映像(儘管通過使用擺動類不是很大的方法),然後保存圖像,然後將其發送到打印機。但是,當HTML有一個標籤和圖像不被HTML創建的圖像中renderred失敗。有人可以幫助我解決我的問題的方法。打印機也能夠支持後記。
這是我的做法
protected void generateDoc(DataObj data) {
DocFlavor dsc =
DocFlavor.INPUT_STREAM.PNG;
// get the html file's contents
String receipt =
getFileContents("Receipt.html");
// process the html contents and insert the data details
receipt = processHTMLContents(receipt, data);
// create image of the receipt
createReceiptImage(receipt);
InputStream is =
null;
try {
is =
new FileInputStream(new File("testingToday.png")); // the same image which was created below
} catch (FileNotFoundException e) {
e.printStackTrace();
}
// create the doc to be sent to the printer
Doc doc =
new SimpleDoc(is, dsc, null);
return doc;
}
/**
* Create an image of the html receipt.
* @param htmlReceipt processed html receipt
* @return
* @throws InterruptedException
*/
protected void createReceiptImage(String htmlReceipt) throws InterruptedException {
JEditorPane pane =
new JEditorPane();
//pane.setEditable(false);
pane.setEditorKit(new HTMLEditorKit());
pane.setContentType("text/html");
pane.setText(htmlReceipt);
pane.setSize(650, 850);
pane.setBackground(Color.white);
// Create a BufferedImage
BufferedImage image =
new BufferedImage(pane.getWidth(), pane.getHeight(),
BufferedImage.TYPE_INT_ARGB);
Graphics2D g =
image.createGraphics();
// Have the image painted by SwingUtilities
JPanel container =
new JPanel();
SwingUtilities.paintComponent(g, pane, container, 0, 0, image
.getWidth(), image.getHeight());
g.dispose();
ImageIO.write(image, "PNG", new File("testingToday.png")); // this would be replaced by a relative network location
}
,然後這個文檔被髮送到打印機。但因爲它是擺動類,它是不能夠呈現HTML內的任何圖像,這是不是一個可取的辦法。我已經花了大約一個星期的時間,但仍不能解決問題。如何解決這個問題或者可以解決什麼問題?
打印PDF通過的javax.print將其轉換到正式的大部分打印機都不支持。我嘗試閱讀PDF並打印它,但它從來沒有爲我工作 –