在Java中使用openCSV读取CSV文件的最后一行

Question

How to read only the last line of a csv file using openCSV.? Is there any way instead of reading the entire file.

Answer 1

如果知道cvs文件中的行数，则可以执行以下操作以跳过最后一行之前的所有行：

CSVReader reader = new CSVReader(new FileReader(file), ',', '\'', num_of_lines-1);

Answer 2

If you don't need to use openCSV, you could use an implementation around RandomAccessFile . Here is a nice, working function (two actually, but one is more generic). Take into account the warnings in the end of that answer.

Also, Apache Commons has ReversedLinesFileReader , with readLine method that "returns the lines of the file from bottom to top", though it should be tested if the entire file is not being read.