import com.csvreader.CsvReader;
import com.csvreader.CsvWriter;
import org.junit.Test;
import java.io.IOException;
import java.nio.charset.Charset;
/**
* Created by javalittleman on 2016/8/18.
*/
public class TestCVS {
/**
* CSV导出
*
* @throws Exception
*/
@Test
public void exportCsv() throws IOException {
String srcCSV = "F:/cnt_programa.csv";
String targetFile = "F:/test.csv";
CsvReader reader = new CsvReader(srcCSV, ',', Charset.forName("UTF-8"));
CsvWriter write =new CsvWriter(targetFile,',',Charset.forName("UTF-8"));
//各字段以引号标记
write.setForceQualifier(true);
//路过表头
//r.readHeaders();
//逐条读取记录，直至读完
String[] header = {};
while (reader.readRecord()) {
//把头保存起来
if (reader.getCurrentRecord()==0){
header = reader.getValues();
}
//获取当前记录位置
System.out.print(reader.getCurrentRecord() + ".");
//读取一条记录
System.out.println(reader.getRawRecord());
String[] tmp = {reader.getValues()[0],reader.getValues()[1]};
//修改记录，并只写入第一个字段和第二字段
if (!header[1].equals(tmp[1]) && ("".equals(tmp[1])||tmp==null)){
tmp[1]="空";
write.writeRecord(tmp);
}else{
write.writeRecord(new String[]{reader.getValues()[0],reader.getValues()[1]});
}
}
reader.close();
write.close();
}
} 

"id","pid","no","serial","name","createtime"
"100000","","No100000","","公司新闻","2016/8/23 17:12:09"
"100001","","No100001","","热点资讯","2016/8/24 17:12:36"
"100046","100001","No100046","1","银行动态","2016/8/1 10:36:31"
"100052","100001","No100052","2","法律法规","2016/8/2 20:39:10"
"100088","100001","No100088","3","专业文库","2016/8/5 19:05:47" 

"id","pid"
"100000","空"
"100001","空"
"100046","100001"
"100052","100001"
"100088","100001"