利用JavaCSV API來讀寫csv文件
阿新 • • 發佈:2017-06-04
pro 如果 att ron maven style stat println 實現
http://blog.csdn.net/loongshawn/article/details/53423121
http://javacsv.sourceforge.net/
[email protected]:http://blog.csdn.net/loongshawn/article/details/53423121
1 背景
CSV文件的讀寫其實是有很多方法的,在這裏介紹一種利用第三方jar包來讀寫CSV文件的方法。
日常工作中,如果有現成的第三方工具包,咱最好還是用現成的,有利於提升效率及降低異常率,成熟的三方工具包比較靠譜。
2 JavaCSV API
maven依賴
<!-- https://mvnrepository.com/artifact/net.sourceforge.javacsv/javacsv -->
<dependency>
<groupId>net.sourceforge.javacsv</groupId>
<artifactId>javacsv</artifactId>
<version>2.1</version>
</dependency>
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 1
- 2
- 3
- 4
- 5
- 6
- 7
API 說明文檔:http://javacsv.sourceforge.net/
JavaCSV官網:https://sourceforge.net/projects/javacsv/
javacsv-2.1.jar點擊下載
3 代碼實現
3.1 讀操作
public static void read(){
String filePath = "XXX.csv";
try {
// 創建CSV讀對象
CsvReader csvReader = new CsvReader(filePath);
// 讀表頭
csvReader.readHeaders();
while (csvReader.readRecord()){
// 讀一整行
System.out.println(csvReader.getRawRecord());
// 讀這行的某一列
System.out.println(csvReader.get("Link"));
}
} catch (IOException e) {
e.printStackTrace();
}
}
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
3.2 寫操作
public static void write(){
String filePath = "/Users/dddd/test.csv";
try {
// 創建CSV寫對象
CsvWriter csvWriter = new CsvWriter(filePath,‘,‘, Charset.forName("GBK"));
//CsvWriter csvWriter = new CsvWriter(filePath);
// 寫表頭
String[] headers = {"編號","姓名","年齡"};
String[] content = {"12365","張山","34"};
csvWriter.writeRecord(headers);
csvWriter.writeRecord(content);
csvWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 頂
- 8
- 踩
- 2
利用JavaCSV API來讀寫csv文件