我使用StringTokenizer
尝试导入CSV
文件Arraylist
:JAVA - 导入CSV到ArrayList的
public class Test
{
public static void main(String [] args)
{
List<ImportedXls> datalist = new ArrayList<ImportedXls>();
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
的作品,因为如果我把初始化三个变量(docNumber
,note
和index
)作为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)
如果我继续docNumber只是,它的工作原理。你可以帮帮我吗?
为什么你不使用'stringRead.split(“,”)'? – Thomas
显示典型的行 – duffymo
opencsv库使读取csv文件变得非常简单,无需编写自己的代码。 – Pete855217