今天从网上找了一个读写csv格式的开源程序，还挺好用的。

下面是一个读取例子：

源文件格式：

 ProductID,ProductName,SupplierID,CategoryID,QuantityPerUnit,UnitPrice,UnitsInStock,UnitsOnOrder,ReorderLevel,Discontinued
 1,Chai,1,1,10 boxes x 20 bags,18,39,0,10,FALSE
 2,Chang,1,1,24 - 12 oz bottles,19,17,40,25,FALSE

 下面读取程序

 CsvReader reader  =   new  CsvReader( " products.csv " );

 reader.readHeaders();

  while  (reader.readRecord())
  {
  String productID  =  reader.get( " ProductID " );
  String productName  =  reader.get( " ProductName " );
  String supplierID  =  reader.get( " SupplierID " );
  String categoryID  =  reader.get( " CategoryID " );
  String quantityPerUnit  =  reader.get( " QuantityPerUnit " );
  String unitPrice  =  reader.get( " UnitPrice " );
  String unitsInStock  =  reader.get( " UnitsInStock " );
  String unitsOnOrder  =  reader.get( " UnitsOnOrder " );
  String reorderLevel  =  reader.get( " ReorderLevel " );
  String discontinued  =  reader.get( " Discontinued " );
  
   //  perform program logic here

 }

 reader.close();

写CSV例子：

 CsvWriter writer = new CsvWriter(new FileWriter(new File("c:\\1.csv")),',');
  writer.write("aa");
  writer.write("bb");
  writer.write("cc");
  writer.endRecord();
  writer.write("1");
  writer.write("2");
  writer.write("3");
  writer.close();