java csv 导入_JAVA-将CSV导入ArrayList

我正在尝试使用导入CSV文件：Arraylist``StringTokenizer

public class Test

{

public static void main(String [] args)

{

List datalist = new ArrayList();

try

{

FileReader fr = new FileReader("c:\\temp.csv");

BufferedReader br = new BufferedReader(fr);

String stringRead = br.readLine();

while( stringRead != null )

{

StringTokenizer st = new StringTokenizer(stringRead, ",");

String docNumber = st.nextToken( );

String note = st.nextToken( ); /** PROBLEM */

String index = st.nextToken( ); /** PROBLEM */

ImportedXls temp = new ImportedXls(docNumber, note, index);

datalist.add(temp);

// read the next line

stringRead = br.readLine();

}

br.close( );

}

catch(IOException ioe){...}

for (ImportedXls item : datalist) {

System.out.println(item.getDocNumber());

}

}

}

我不明白是怎么nextToken工作的，因为如果我继续初始化三个变量(docNumber，note和index)的nextToken()，它失败的：

Exception in thread "main" java.util.NoSuchElementException

at java.util.StringTokenizer.nextToken(Unknown Source)

at _test.Test.main(Test.java:32)

如果我仅保留docNumber，则它可以工作。你可以帮帮我吗？