java读写CSV文件的方法（java读取csv文件工具包）

可以通过流的形式读取到所有内容，之后在转换成元素的形式进行实现。举例：

import java.io.BufferedReader;

import java.io.FileReader;

import java.util.*;

public class Test{

public static void main(String[] args) {

Hashtable<String, String[]> dict = new Hashtable<String, String[]>();

try {

BufferedReader reader = new BufferedReader(new FileReader("test.csv"));

String line = null;

while((line=reader.readLine())!=null){

String item[] = line.split(",");

String item2[] = new String[19];

System.arraycopy(item,1,item2,0,19);

dict.put(item[0],item2);

}

Enumeration e2 = dict.keys();

while (e2.hasMoreElements()) {

String key = (String) e2.nextElement();

System.out.println(key);

String[] dd = (String[])dict.get(key);

for (int i=0;i<dd.length;i++) {

System.out.print(dd[i]+" ");

}

System.out.println();

}

}

catch (Exception e) {

e.printStackTrace();

}

}

}