鍦↗ava涓紝鍙互浣跨敤浠ヤ笅涓ょ鏂瑰紡鏉ュ疄鐜板鍏ュ拰瀵煎嚭鍔熻兘锛?/p>

1. 浣跨敤鏂囦欢杈撳叆杈撳嚭娴侊細

鍙互浣跨敤FileInputStream鍜孎ileOutputStream鏉ヨ鍙栧拰鍐欏叆鏂囦欢銆傞鍏堬紝鍒涘缓涓€涓枃浠惰緭鍏ユ祦瀵硅薄锛團ileInputStream锛夎鍙栬瀵煎叆鐨勬枃浠讹紝鐒跺悗閫氳繃璇诲彇鐨勬暟鎹繘琛屽鐞嗐€傜劧鍚庯紝鍒涘缓涓€涓枃浠惰緭鍑烘祦瀵硅薄锛團ileOutputStream锛夋潵鍐欏叆鏁版嵁鍒拌瀵煎嚭鐨勬枃浠躲€?/p>

涓嬮潰鏄竴涓ず渚嬩唬鐮侊細

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class ImportExportExample {
public static void main(String[] args) {
// 瀵煎叆鏁版嵁
try (FileInputStream fis = new FileInputStream("input.txt")) {
// 璇诲彇鏂囦欢鍐呭骞惰繘琛屽鐞?/span>
// ...
} catch (IOException e) {
e.printStackTrace();
}
// 瀵煎嚭鏁版嵁
try (FileOutputStream fos = new FileOutputStream("output.txt")) {
// 鍐欏叆鏁版嵁鍒版枃浠?/span>
// ...
} catch (IOException e) {
e.printStackTrace();
}
}
}

2. 浣跨敤CSV搴擄細

鍙互浣跨敤鐜版湁鐨凜SV搴撴潵瀹炵幇瀵煎叆鍜屽鍑篊SV鏂囦欢銆侰SV鏄竴绉嶅父鐢ㄧ殑鏂囦欢鏍煎紡锛岀敤浜庡瓨鍌ㄨ〃鏍兼暟鎹€傚彲浠ヤ娇鐢∣penCSV銆丄pache Commons CSV绛夊紑婧愬簱鏉ヨ鍙栧拰鍐欏叆CSV鏂囦欢銆?/p>

涓嬮潰鏄竴涓娇鐢∣penCSV搴撶殑绀轰緥浠ｇ爜锛?/p>

import com.opencsv.CSVReader;
import com.opencsv.CSVWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class ImportExportExample {
public static void main(String[] args) {
// 瀵煎叆鏁版嵁
try (CSVReader reader = new CSVReader(new FileReader("input.csv"))) {
String[] nextLine;
while ((nextLine = reader.readNext()) != null) {
// 澶勭悊CSV琛屾暟鎹?/span>
// ...
}
} catch (IOException e) {
e.printStackTrace();
}
// 瀵煎嚭鏁版嵁
try (CSVWriter writer = new CSVWriter(new FileWriter("output.csv"))) {
String[] nextLine = {"data1", "data2", "data3"};
writer.writeNext(nextLine);
// 鍐欏叆CSV琛屾暟鎹?/span>
// ...
} catch (IOException e) {
e.printStackTrace();
}
}
}

浠ヤ笂浠ｇ爜绀轰緥浜嗗浣曚娇鐢↗ava瀹炵幇瀵煎叆鍜屽鍑哄姛鑳姐€傚叿浣撳疄鐜版柟娉曟牴鎹渶姹傜殑鏂囦欢鏍煎紡鍜屾暟鎹鐞嗘柟寮忓彲鑳戒細鏈夋墍涓嶅悓銆?/p>