嗨,我正在尝试从.csv文件中获取特定数据,而我使用的代码是
import java.io.BufferedReader;
import java.io.FileReader;
public class InsertValuesIntoTestDb {
public static void main(String[] args) throws Exception {
String splitBy = ",";
BufferedReader br = new BufferedReader(newFileReader("test.csv"));
String line = br.readLine();
while ((line = br.readLine()) !=null) {
String[] b = line.split(splitBy);
System.out.println(b[0]);
}
br.close();
}
}
.csv看起来像
a,f,w,b,numinst,af,ub
1RW,800,64,22,1,48:2,true
1RW,800,16,39,1,48:2,true
1RW,800,640,330,1,48:2,true
1RW,800,40,124,1,48:2,true
1RW,800,32,104,1,48:2,true
1RW,800,8,104,1,48:2,true
1R1W,800,65536,39,1,96:96,true
1R1W,800,2048,39,1,96:96,true
1R1W,800,8192,39,1,48:48,true
使用上面的代码,我只能打印列“ a”,而我的输出看起来像
a
1RW
1Rw
1Rw
像这样,但是我怎么能打印f,w,b列呢?
我的输出应该像
f w b
800 64 22
800 64 22
800 64 22
谢谢
最佳答案
只需将System.out.println(b[0]);
更改为System.out.println(b[1]+" "+b[2]+" "+b[3]);
关于java - 如何使用Java从CSV打印多列,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/31020508/