使用reader.eachLine读取BufferedInputStream时，如何保持行号计数？(How do I keep a line number count when using reade

使用reader.eachLine读取BufferedInputStream时，如何保持行号计数？(How do I keep a line number count when using reader.eachLine to read a BufferedInputStream?)

在使用eachLine读取BufferedInputStream时，如何跟踪我所在的行号？

def input = new GZIPInputStream(new FileInputStream(f)) def reader = new BufferedReader(new InputStreamReader(input)) reader.eachLine { line ->if(line.contains(searchString)){ println "${f} - ${line}" } }

How can I keep track of the line number I'm on when using eachLine to read a BufferedInputStream?

def input = new GZIPInputStream(new FileInputStream(f)) def reader = new BufferedReader(new InputStreamReader(input)) reader.eachLine { line ->if(line.contains(searchString)){ println "${f} - ${line}" } }

最满意答案

您传递给每个线的封闭也可以带2个参数。 首先是数据行，第二行是行号。

.... .... reader.eachLine { line, lineNumber -> if(line.contains(searchString)) { println "${lineNumber} - ${line}" } }

请参阅GDK Doc for InputStream eachLine方法 。

The closure you pass to eachLine can also take 2 parameters. First being the line of data and the second being the line number.

.... .... reader.eachLine { line, lineNumber -> if(line.contains(searchString)) { println "${lineNumber} - ${line}" } }

See GDK Doc for InputStream eachLine method.