Question

java怎么读入以逗号分隔的数据?

Answer 1

package com.ldc.test;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
/**
*
* @author 愿做无聊听众
*
*/
public class Test {
public static void main(String[] args) {
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(new FileInputStream("xxxxx.txt")));
String[] textData=null;
String line=null;
while((line=br.readLine())!=null){
//文件行中以逗号分隔的数据，转换成数据-----------------------------------------------关键字split
textData=line.split("\\,");
//转出数据
System.out.println(Arrays.toString(textData));
}
} catch (FileNotFoundException e) {
System.out.println("打不到文件");
e.printStackTrace();
} catch (IOException e){
System.out.println("读取失败");
e.printStackTrace();
}finally {
try {
if (br != null)
br.close();
} catch (IOException e) {
}
}

}
}

Answer 2

String str="逗号，分隔，的，数据"
String[] arr = str.split("，");

Answer 3

String类的split()方法。