I have this (stripped the HTML tags for the code example) function that builds a HTML table out of a CSV, but I get a runtime error everytime I try to run it and I don't know why. Google says that maybe something with the encoding is wrong but I have no idea how to change that.
My CSV is encoded in ANSI and contains characters like ä, Ä, Ü, Ö but I have no control over the encoding or if it will change in the future.
The error occurs here:
Caused by: java.io.UncheckedIOException: java.nio.charset.MalformedInputException: Input length = 1
at java.io.BufferedReader$1.hasNext(Unknown Source)
at java.util.Iterator.forEachRemaining(Unknown Source)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)
at java.util.stream.ReferencePipeline$Head.forEach(Unknown Source)
at testgui.Csv2Html.start(Csv2Html.java:121)
Line 121 is
lines.forEach(line -> {
Sourcecode:
protected void start() throws Exception {
Path path = Paths.get(inputFile);
FileOutputStream fos = new FileOutputStream(outputFile, true);
PrintStream ps = new PrintStream(fos);
boolean withTableHeader = (inputFile.length() != 0);
try {
Stream<String> lines = Files.lines(path);
lines.forEach(line -> {
try {
String[] columns = line.split(";");
for (int i=0; i<columns.length; i++) {
columns[i] = escapeHTMLChars(columns[i]);
}
if (withTableHeader == true && firstLine == true) {
tableHeader(ps, columns);
firstLine = false;
} else {
tableRow(ps, columns);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
}
});
} finally {
ps.close();
}
}
You can try to utilize the correct encoding by using the Files.lines(Path path, Charset charset)
form of the lines
method (javadocs).
Here's a list of supported encodings (for the Oracle JVM anyhow). This post indicates that "Cp1252" is Windows ANSI.