how to generate QR code using velocity template - java

I am using velocity template with java to create email content . i need to add a QR code in my email template, How do i generate QR code using velocity template ?


Velocity generates text. A QR Code is an image. Basically, Velocity can generate an <img src=...> tag, but not the QR code itself.
You will have to use a QR code generator like QRGen to generate the QR code.


String Cus_Name = (String) cmbCus_NameAdd.getSelectedItem();
String Cus_Id = lblCus_IDAdd2.getText();
String Odr_No = lblOrderNoAdd2.getText();
String Matir = lblMeterialAdd2.getText();
String amount = txtNoOfProductAdd.getText();
String date = lblDateAdd2.getText();
String time = lblTimeAdd2.getText();
String place = (String) cmbPlaceAdd.getSelectedItem();
String newLine = System.getProperty("line.separator");
String Details = "Customer Name - " + Cus_Name + "" + newLine + " Customer ID - " + Cus_Id + "" + newLine + " Order No - " + Odr_No + "" + newLine + " Material - " + Matir + "" + newLine + " Amount - " + amount + "" + newLine + " Date - " + date + "" + newLine + " Time - " + time + "" + newLine + " Place - " + place + "";
ByteArrayOutputStream out = QRCode.from(Details).to(ImageType.JPG).stream(); // this line creates QR code
File f = new File("C:\\Users\\Pulasthi Dinusha\\Desktop\\MainGui\\lib\\QR_Generator_Libs\\" + Odr_No + ".jpg");
FileOutputStream fos;
try {
fos = new FileOutputStream(f);
fos.write(out.toByteArray());
fos.flush();
} catch (FileNotFoundException ex) {
Logger.getLogger(test2.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(test2.class.getName()).log(Level.SEVERE, null, ex);
}
ImageIcon iconLogo = new ImageIcon("C:\\Users\\Pulasthi Dinusha\\Desktop\\MainGui\\lib\\QR_Generator_Libs\\" + Odr_No + ".jpg");
// In init() method write this code
lblQRcodeAdd.setIcon(iconLogo);

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This is where the data is coming from:
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String date = txtDeliveryDate.getText();
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String small = txtSmall.getText();
String medium = txtMedium.getText();
String large = txtLarge.getText();
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try{
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buf.newLine();
buf.close();
JOptionPane.showMessageDialog(this, "Order sent");
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How would I display the data that gets collected from this into a JTable that updates whenever new data is introduced to the text file?

How can I insert data from multiple Access rows into a single, multi-lined string in Java

I am trying to get data from a result set into my java application so that I can display it to the user. Something I'd like to implement is a partial search function that displays multiple rows of data based on an input string. If that string appears in any serial number in the database, it pulls that entire row and adds it to a string.
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You are overwriting temp
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//or temp = temp +
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How to send a string to ffmpeg's input in Java

I am quite new to java, and try as I might, I can't find any examples to help me. I am running ffmpeg as a process and parsing the stderr to get various bits of data - all of which is working fine, but I want to send a "q\n" command to ffmpeg's input from a gui menu item to gracefully quit it whilst it is running when necessary. So all I want to do is send a string programmatically to ffmpeg, the equivalent of sending q return from terminal. Thanks in advance
edit here is the relevant (simplified) section of the code
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public void run()
BufferedReader error_reader,input_reader;
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OutputStream stdout;
InputStream stdin;
InputStream stderr;
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//-------------------------------------------------------------------------------------
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You need to close the output, or more correctly, you need to code so it will be closed (not necessarily closing it explicitly). Java 7 introduced the try with resources syntax that neatly handles exactly this situation.
Any object that is AutoCloseable can be automatically, and safely, closed using this syntax, like this:
private static void writeFile( String call,float freq,String mode,int rstSnt,int rstRx,String city, String state) throws IOException{
File fileName = new File("log.txt");
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File fileName = new File("log.txt");
FileOutputStream fos;
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BufferedWriter write = new BufferedWriter(new OutputStreamWriter(fos));
int i =0;
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Generate vCard from Contact Data by java

I would like to be able to generate a vCard given the data contained within person_contact.
Here is my code.But I am unable to generate the vcard properly.
private void m1() throws IOException {
Contact contact = buildContact();
File f = new File("contact.vcf");
FileOutputStream fop = new FileOutputStream(f);
String outputImageFilePath = "contact.vcf";
createDirectoryIfNotExists(outputImageFilePath);
if (f.exists()) {
String str = "BEGIN:VCARD\n" + "VERSION:4.0\n" + "N:" + contact.getFull_name() + ";;;\n"
+ "FN:" + contact.getFull_name() + "\n" + "ORG:" + contact.getOrganization_name()
+ "\n" + "TITLE:" + contact.getTitle() + "\n" + "TEL;TYPE="
+ contact.getPhone_2_type() + ";VALUE=uri:" + contact.getPhone_2() + "\n"
+ "TEL;TYPE=" + contact.getPhone_3_type() + ",voice;VALUE=uri:tel:"
+ contact.getPhone_3() + "\n" + "EMAIL:" + contact.getEmail() + "\n" + "FAX:"
+ contact.getFax() + "\n" + "STREET1:" + contact.getStreet1() + "\n" + "STREET2:"
+ contact.getStreet2() + "\n" + "CITY:" + contact.getCity() + "\n" + "STATE:"
+ contact.getState() + "\n"
+ "END:VCARD";
fop.write(str.getBytes());
// Now read the content of the vCard after writing data into it
BufferedReader br = null;
String sCurrentLine;
br = new BufferedReader(new FileReader("contact.vcf"));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
System.out.println(f.getAbsolutePath());
}
// close the output stream and buffer reader
fop.flush();
fop.close();
System.out.println("The data has been written");
}
else
System.out.println("This file does not exist");
}
private static Contact buildContact() {
Contact contact = new Contact();
contact.setCity("xxxxxx");
contact.setCountry("xxxxxx");
contact.setEmail("test#xxxxxx.com");
contact.setFax("123456789");
contact.setFull_name("Dummy Name");
contact.setOrganization_name("Dummy-technologies");
contact.setPhone("123456789");
contact.setPhone_type("work");
contact.setPhone_2("987456321");
contact.setPhone_2_type("home");
contact.setPhone_3("564789451236");
contact.setPhone_3_type("work2");
contact.setPostal_code("500000");
contact.setState("state");
contact.setStreet1("street1");
contact.setStreet2("stree2");
contact.setTitle("company");
contact.setWebsite_url("www.text.com");
return contact;
}
It is not generating the vcard properly.Can any one help me plz.

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