CSV其實(shí)就是COMMA SEPARATED VALUE的縮寫。csv文件是分隔文件，如果使用java的io流來寫，比較麻煩，這里為大家提供一個(gè)javacsv的jar包，這個(gè)很方便操作csv文件。
下載地址：javcsv.rar
那如何使用呢？
只要看看以下一個(gè)例子，您一下就明白了。
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import com.csvreader.CsvReader;import com.csvreader.CsvWriter;import org.junit.Test;import java.io.IOException;import java.nio.charset.Charset;/*** Created by javalittleman on 2016/8/18.*/public class TestCVS {/*** CSV導(dǎo)出** @throws Exception*/@Testpublic void exportCsv() throws IOException {String srcCSV = "F:/cnt_programa.csv";String targetFile = "F:/test.csv";CsvReader reader = new CsvReader(srcCSV, ',', Charset.forName("UTF-8"));CsvWriter write =new CsvWriter(targetFile,',',Charset.forName("UTF-8"));//各字段以引號(hào)標(biāo)記write.setForceQualifier(true);//路過表頭//r.readHeaders();//逐條讀取記錄，直至讀完String[] header = {};while (reader.readRecord()) {//把頭保存起來if (reader.getCurrentRecord()==0){header = reader.getValues();}//獲取當(dāng)前記錄位置System.out.print(reader.getCurrentRecord() + ".");//讀取一條記錄System.out.println(reader.getRawRecord());String[] tmp = {reader.getValues()[0],reader.getValues()[1]};//修改記錄，并只寫入第一個(gè)字段和第二字段if (!header[1].equals(tmp[1]) && ("".equals(tmp[1])||tmp==null)){tmp[1]="空";write.writeRecord(tmp);}else{write.writeRecord(new String[]{reader.getValues()[0],reader.getValues()[1]});}}reader.close();write.close();}} |
cnt_programa.csv文件：
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"id","pid","no","serial","name","createtime""100000","","No100000","","公司新聞","2016/8/23 17:12:09""100001","","No100001","","熱點(diǎn)資訊","2016/8/24 17:12:36""100046","100001","No100046","1","銀行動(dòng)態(tài)","2016/8/1 10:36:31""100052","100001","No100052","2","法律法規(guī)","2016/8/2 20:39:10""100088","100001","No100088","3","專業(yè)文庫(kù)","2016/8/5 19:05:47" |
test.csv
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"id","pid""100000","空""100001","空""100046","100001""100052","100001""100088","100001" |
以上所述是小編給大家介紹的使用Javacsv.jar的jar包操作csv文件的方法，希望對(duì)大家有所幫助，如果大家有任何疑問請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)服務(wù)器之家網(wǎng)站的支持！
原文鏈接：http://www.cnblogs.com/javalittleman/archive/2016/08/19/javacsv.html
