java读取csv文件和写csv示例分享

import java.io.bufferedreader;
import java.io.bufferedwriter;
import java.io.file;
import java.io.fileinputstream;
import java.io.filenotfoundexception;
import java.io.filereader;
import java.io.filewriter;
import java.io.ioexception;
import java.io.inputstreamreader;

public class csv{
 public static void main(string[] args) throws ioexception {
  file outfile = new file("d://new_car.csv");//存储到新文件的路径
  try {
   inputstreamreader isr = new inputstreamreader(new fileinputstream("d://car.csv"));//待处理数据的文件路径
   bufferedreader reader = new bufferedreader(isr);
   bufferedwriter bw = new bufferedwriter(new filewriter(outfile));
   string line = null;
   while((line=reader.readline())!=null){
                string item[] = line.split(",");
                /*
                *信息处理块
                */ 
                bw.newline();//新起一行
                bw.write(""+","+"");//写到新文件中
            }
   bw.close();
  } catch (filenotfoundexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  }
    }
}