I want modify html file for convert this to pdf.
Currently I convert an html file to pdf using "ITextRenderer".
Currently:
OutputStream out = new FileOutputStream(htmlFileOutPutPath);
//Flying Saucer
ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(htmlFilePath);
renderer.layout();
renderer.createPDF(out);
out.close();
//This success!! html file to pdf generated!
1- but more later I have the need to modify the html file before generating it as pdf, for this I think extract html file content and convert to string, then I replace some text on string html:
public String htmlFileToString() throws IOException {
StringBuilder contentBuilder = new StringBuilder();
String path = "C:/Users/User1/Desktop/to_pdf_replace.html";
BufferedReader in = new BufferedReader(new FileReader(path));
String str;
while ((str = in.readLine()) != null) {
contentBuilder.append(str);
}
in.close();
String content = contentBuilder.toString();
return content;
}
2- Then Replace tags in string from html
public String replaceHTMLcontent(String strSource)
{
String name = "Ana";
String age = "23";
String html = strSource;
strSource = strSource.replace("##Name##", name);
strSource = strSource.replace("##Age##", age);
//## ## -> are my html custom tags to replace
return strSource;
}
MAIN:
public static void main(String[] args) {
String stringFromHtml = new DocumentBLL().htmlFileToString();
String stringFromHtmlReplaced = new DocumentBLL().replaceHTMLcontent(stringFromHtml );
}
But now I do not know how to replace the new string with the old html string of the html file
You can first convert the whole html file into a string and do
String.replace("What I want to replace", "What it will be replaced with.");
Or if say you want to replace text1 and it's in a specific line, you can iterate through the file line by line (will be read as string) and look if there's text1 and implement the code I used above.
In addition, you can use this
BufferedReader file = new BufferedReader(new FileReader("myFile.html"));
String line;
StringBuffer buffer = new StringBuffer();
while (line = file.readLine()) {
buffer.append(line);
buffer.append('\n');
}
String input = buffer.toString();
file.close();
input = input.replace("What I want to insert into", "What I (hi there) want to insert into");
FileOutputStream out = new FileOutputStream("myFile.html");
out.write(inputStr.getBytes());
out.close();
Related
I downloaded an xml file from web service. If I open file from file system is formed correctly, but when I run my code isn't formed correctly.
A part of xml file formed correctly, it opened from file system:
<?xml version="1.0" encoding="UTF-8"?><ns3:FatturaElettronica xmlns:ns3="http://ivaservizi.agenziaentrate.gov.it/docs/xsd/fatture/v1.2" xmlns:ns2="http://www.w3.org/2000/09/xmldsig#" versione="FPR12">
Here the same xml file managed by my code:
ÿþ<
I can't copy the code and I put an image of what I see on the eclipse console.
I tryed different ways to manage this file, but nothing worked.
This is the code that it manages files. I put all ways I tryed to solve the error.
private static String readFile(File file, Writer writerArg) throws FileNotFoundException, IOException,Exception
{
FileInputStream fis = null;
InputStreamReader isr = null;
String typeEncoding = null;
/*
* First way
*
* BufferedReader br = new BufferedReader(new FileReader(fileName));
String nextLine = "";
StringBuffer sb = new StringBuffer();
while ((nextLine = br.readLine()) != null)
{
// System.out.println("Writing: " + nextLine);
writerArg.write(nextLine);
// sb.append(nextLine);
sb.append(nextLine+"\n");
} // Convert the content into to a string
String clobData = sb.toString().trim();
*/
/*
* Second way
*
* fis = new FileInputStream(file);
isr = new InputStreamReader(fis);
typeEncoding = isr.getEncoding();
Charset inputCharset = Charset.forName(typeEncoding);
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(file), inputCharset));
String str;
String nextLine = "";
StringBuffer sb = new StringBuffer();
while ((nextLine = in.readLine()) != null) {
System.out.println(nextLine);
writerArg.write(nextLine);
// sb.append(nextLine);
sb.append(nextLine+"\n");
}
String clobData = sb.toString().trim();
// Return the data.
return clobData;
*/
/* Third way */
String data = "";
data = new String(Files.readAllBytes(Paths.get(file.getAbsolutePath())));
System.out.println(data);
return data;
}
And when the below code receives the string I get the error: "String index out of range: -1"
schema=stringXml.substring(0,stringXml.indexOf("<FatturaElettronicaHeader")).trim();
The first way downloaded thousands of files and managed them. Only this file gives my this error. It's from yesterday that I'm looking for a way to solve the error.
Can anyone give my any idea?
In my code I have two files in my drive those two files have some text and I want to display those string in the console and also remove the repeated string and display the repeated string once rather than displaying it twice.
Code:
public class read {
public static void main(String[] args) {
try{
File file = new File("D:\\file1.txt");
FileReader fileReader = new FileReader(file);
BufferedReader br = new BufferedReader(fileReader);
StringBuffer stringBuffer = new StringBuffer();
String line;
while((line = br.readLine()) != null){
stringBuffer.append(line);
stringBuffer.append("\n");
}
fileReader.close();
System.out.println("Contents of file1:");
String first = stringBuffer.toString();
System.out.println(first);
File file1 = new File("D:\\file2.txt");
FileReader fileReader1 = new FileReader(file1);
BufferedReader br1 = new BufferedReader(fileReader1);
StringBuffer stringBuffer1 = new StringBuffer();
String line1;
while((line1 = br1.readLine()) != null){
stringBuffer1.append(line1);
stringBuffer1.append("\n");
}
fileReader1.close();
System.out.println("Contents of file2:");
String second = stringBuffer1.toString();
System.out.println(second);
System.out.println("answer:");
System.out.println(first+second);
}catch (IOException e) {
// TODO: handle exception
e.printStackTrace();
}
}
}
Output is:
answer:
hi hello
how are you
hi ya
i am fine
But I want to compare both the strings and if the same string repeated then that string should be displayed once.
Output I expect is like this:
answer:
hi hello
how are you
ya
i am fine
Where the "hi" is found in both the strings so that I need to delete the one duplicate string.
How can I do that please help.
Thanks in advance.
You can pass your lines through this method to parse out duplicate words:
// store unique previous words
static Set<String> words = new HashSet<>();
static String removeDuplicateWords(String line) {
StringJoiner sj = new StringJoiner(" ");
// split on whitespace to get distinct words
for (String word : line.split("\\s+")) {
// try to add word to the set
if (words.add(word)) {
// if the word was added (=not seen before), append to the result
sj.add(word);
}
}
return sj.toString();
}
I am trying to create foreign dictionary, but when I try to load dictionary data from txt file. It represents like this ������������. Here is method I use to read that file:
private WordList(Context context) throws IOException {
mWordList = new ArrayList<>();
AssetManager am = context.getAssets();
InputStream is;
StringBuilder stringBuilder=new StringBuilder("");
is = am.open("dat.txt");
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
while (bufferedReader.readLine()!=null){
stringBuilder.append(bufferedReader.readLine());
Log.d("String",stringBuilder.toString());
StringTokenizer stringTokenizer = new StringTokenizer(stringBuilder.toString(),",;'");
Word word = new Word();
StringBuilder def = new StringBuilder();
/* for (int i=0; i<stringTokenizer.countTokens();i++){
if(i==0){
word.setWrodName(stringTokenizer.nextToken());
if (i==1){
def.append(stringTokenizer.nextToken());
}
if (i==2){
def.append(", ");
def.append(stringTokenizer.nextToken());
}
if (i==3){
def.append(", ");
def.append(stringTokenizer.nextToken());
}
word.setWordDefinition(def.toString());
}
def.delete(0,def.length());
}*/
stringBuilder.delete(0,def.length());
mWordList.add(word);
}
is.close();
Log.d("String",stringBuilder.toString());
}
In row Recycle View it shows stroke with symbols and numbers.
Can you try to passing the encoding?
// Change encoding to "UTF-8" or whatever you want.
BufferedReader in = new BufferedReader(new InputStreamReader(stream, encoding));
or try this way
Reader in = new InputStreamReader(new FileInputStream("file"), "UTF-8"));
Check database encoding type utf8, utf16, latin.............
Made changes on UI accordingly. Like <%# page contentType="text/html; charset=UTF-8" %> in html or jsp
Check character encoding of dat.txt.
I have to read from a text file and format the input. I'm new to java reading from files, and I don't know how to work with just some parts of what I read
Here is the initial file: http://pastebin.com/D0paWtAd
And I have to write in another file the following output:
Average,Joe,44,31,18,12,9,10
I've managed just to take everything from the file and print it to output. I would need help just in taking the output I need and print it to the screen. Any help is appreciated.
This is what I wrote up to now:
public class FileParsing {
public static String
read(String filename) throws IOException {
BufferedReader in = new BufferedReader(new FileReader("C:\\Users\\Bogdi\\Desktop\\example.txt"));
String s;
StringBuilder sb = new StringBuilder();
while((s = in.readLine())!= null) sb.append(s + "\n");
in.close();
return sb.toString();
}
If your goal is to do the specified output in another file you don't need to first get the content of your file in a StringBuilder before processing it, you can append the processed datas directly in a StringBuilder then you can write the result in a file. Here is an example that would work for the given file but you may have to modify it if the keys change in the future:
The following method will correctly process the datas from your file
public static String read(String filename) throws IOException {
BufferedReader in = new BufferedReader(new FileReader(filename));
String s;
StringBuilder sb = new StringBuilder();
while((s = in.readLine())!= null) {
String[] split1 = s.split("=");
if (split1[0].equals("name")) {
StringTokenizer tokenizer = new StringTokenizer(split1[1]);
sb.append(tokenizer.nextToken());
sb.append(",");
sb.append(tokenizer.nextToken());
sb.append(",");
} else if (split1[0].equals("index")) {
sb.append(split1[1] + ",");
} else if (split1[0].equals("FBid")) {
sb.append(split1[1]);
} else {
StringTokenizer tokenizer = new StringTokenizer(split1[1]);
String wasted = tokenizer.nextToken();
sb.append(tokenizer.nextToken() + ",");
}
}
in.close();
return sb.toString();
}
The next method will read any string to a file
public static void writeStringToFile(String string, String filePath) throws IOException {
BufferedWriter writer = new BufferedWriter(
new FileWriter(
new File(filePath)
)
);
writer.write(string);
writer.newLine();
writer.flush();
writer.close();
}
And here is a simple tests (File1.txt contains the datas from the file you shared on paste bin and I write them in another file)
public static void main(String[] args) throws Exception {
String datas = read("C:\\Tests\\File1.txt");
System.out.println(datas);
writeStringToFile(datas, "C:\\Tests\\FileOuput.txt" );
}
It will produce the exact output that you are expecting
[EDIT] #idk, apparently you have an exception executing my example, while it is working fine for me. That could only mean there is an error at data level. Here is the data sample that I used (and I believe I exactly copy the datas you shared)
And here is the result:
Good to know you are using "StringBuilder" component instead being concatenating your String values, way to go :).
More than knowledge on the Java.IO API to work with files, you will need some logic to get the results you expect. Here I came with an approach that could help you, not perfect, but can point you on how to face this problem.
//Reference to your file
String myFilePath = "c:/dev/myFile.txt";
File myFile = new File(myFilePath);
//Create a buffered reader, which is a good start
BufferedReader breader = new BufferedReader(new FileReader(myFile));
//Define this variable called line that will evaluate each line of our file
String line = null;
//I will use a StringBuilder to append the information I need
StringBuilder appender = new StringBuilder();
while ((line = breader.readLine()) != null) {
//First, I will obtain the characters after "equals" sign
String afterEquals = line.substring(line.indexOf("=") + 1, line.length());
//Then, if it contains digits...
if (afterEquals.matches(".*\\d+.*")) {
//I will just get the digits from the line
afterEquals = afterEquals.replaceAll("\\D+","");
}
//Finally, append the contents
appender.append(afterEquals);
appender.append(",");//This is the comma you want to include
}
//I will delete the last comma
appender.deleteCharAt(appender.length() - 1);
//Close the reader...
breader.close();
//Then create a process to write the content
BufferedWriter myWriter = new BufferedWriter(new FileWriter(new File("myResultFile.txt")));
//Write the full contents I get from my appender :)
myWriter.write(appender.toString());
//Close the writer
myWriter.close();
}
Hope this can help you. Happy coding!
I have a TXT file in which I'd like to change this String
<!DOCTYPE Publisher
PUBLIC "-//Springer-Verlag//DTD A++ V2.4//EN" "http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd">
into this one <!DOCTYPE Publisher> using Java.
I wrote the following function but it seems not to be working.
public void replace() {
try {
File file = new File("/home/zakaria/Bureau/PhD/test2/file.txt");
BufferedReader reader = new BufferedReader(new FileReader(file));
String line = "", oldtext = "";
while((line = reader.readLine()) != null) {
oldtext += line + "\n";
}
reader.close();
String newtext = oldtext
.replaceAll("<!DOCTYPE Publisher\nPUBLIC \"-//Springer-Verlag//DTD A++ V2.4//EN\" \"http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd\">",
"<!DOCTYPE Publisher>");
FileWriter writer = new FileWriter("/home/zakaria/Bureau/PhD/test2/file.txt");
writer.write(newtext);
writer.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
What did I do wrong?
Try this simple code:
public static void replace() {
try {
File file = new File("resources/abc.txt");
BufferedReader reader = new BufferedReader(new FileReader(file));
String line = "", oldtext = "";
boolean found = false;
while ((line = reader.readLine()) != null) {
if (line.trim().startsWith("<!DOCTYPE Publisher")) {
found = true;
}
if (line.trim().endsWith("A++V2.4.dtd\">")) {
oldtext += "<!DOCTYPE Publisher>";
found = false;
continue;
}
if (found) {
continue;
}
oldtext += line + "\n";
}
reader.close();
FileWriter writer = new FileWriter("resources/file.txt");
writer.write(oldtext);
writer.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
You are fortunate to start with that it didn't change anything at all.
Otherwise you'd have lost your original file...
Never modify a file in place!!
Create a temporary file where you write the modified content, and only then rename to your original file.
Also, the string you want to replace is pretty complicated, and you don't want to use .replace() since this will replace all occurrences.
Do like this:
final String quoted
= Pattern.quote("<!DOCTYPE Publisher\nPUBLIC \"-//Springer-Verlag//DTD A++ V2.4//EN\" \"http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd\">");
final Pattern pattern = Pattern.compile(quoted);
final Path victim = Paths.get("/home/zakaria/Bureau/PhD/test2/file.txt");
final Path tmpfile = Files.createTempFile("tmp", "foo");
final byte[] content = Files.readAllBytes(victim);
final String s = new String(content, StandardCharsets.UTF_8);
final String replacement = pattern.matcher(s).replaceFirst("<!DOCTYPE Publisher>");
try (
final OutputStream out = Files.newOutputStream(tmpfile);
) {
out.write(replacement.getBytes(StandardCharsets.UTF_8));
out.flush();
}
Files.move(tmpfile, victim);
If the text you want to eliminate is on the second and subsequent lines, as in your demo-input
<!DOCTYPE Publisher
PUBLIC "-//Springer-Verlag//DTD A++ V2.4//EN"
"http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd">
and no lines between the first and last in the tag contain a closing >, then you can do the following:
while(more lines to process)
if "<!DOCTYPE Publisher" is not found
read line and output it
else
//This is the first line in a <!DOCTYPE tag
read the line and output it, appending '>' to the end
while the next line does NOT end with a '>'
discard it (don't output it)
Try with this regexp:
String newtext = oldtext.replaceAll(
"<!DOCTYPE Publisher\nPUBLIC \"-\\/\\/Springer-Verlag\\/\\/DTD A[+][+] V2[.]4\\/\\/EN\"[ ]\"http:\\/\\/devel[.]springer[.]de\\/A[+][+]\\/V2[.]4\\/DTD\\/A[+][+]V2[.]4[.]dtd\">", "<!DOCTYPE Publisher>");
The only changes are escaping forward slashes and putting dots and plus signs between square brackets.