java.nio.charset.MalformedInputException: 输入长度 = 1

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时间:2020-08-11 09:52:36  来源:igfitidea点击:

java.nio.charset.MalformedInputException: Input length = 1

javaiocharacter-encodingmalformed

提问by Vega

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.

我有这个(去除了代码示例的 HTML 标签)函数,它从 CSV 中构建了一个 HTML 表,但是每次我尝试运行它时都会出现运行时错误,我不知道为什么。谷歌说可能编码有问题,但我不知道如何改变它。

My CSV is encoded in ANSI and contains characters like ?, ?, ü, ? but I have no control over the encoding or if it will change in the future.

我的 CSV 是用 ANSI 编码的,包含像 ?, ?, ü, ? 但我无法控制编码,或者将来是否会改变。

The error occurs here:

错误发生在这里:

Caused by: java.io.UncheckedIOException: java.nio.charset.MalformedInputException: Input length = 1
at java.io.BufferedReader.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

第 121 行是

lines.forEach(line -> {

Sourcecode:

源代码:

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();
    }

}

采纳答案by blazetopher

You can try to utilize the correct encoding by using the Files.lines(Path path, Charset charset)form of the linesmethod (javadocs).

您可以尝试通过使用方法的Files.lines(Path path, Charset charset)形式lines( javadocs)来使用正确的编码。

Here's a listof supported encodings (for the Oracle JVM anyhow). This postindicates that "Cp1252" is Windows ANSI.

是支持的编码列表(无论如何对于 Oracle JVM)。 这篇文章表明“Cp1252”是 Windows ANSI。