java使用CsvReader和CsvWriter对csv文件内容进行读取和写入操作

 

package IO;

import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;

import com.csvreader.CsvReader;
import com.csvreader.CsvWriter;

public class IO {
	public String inPath="D:\\中国农业银行全国网点大全.csv";
	public String outPath="D:\\网点大全.csv";
	public ArrayList List = new ArrayList();
	private void CheckandCreateFile(){
	
		File file=new File(outPath);
		try{
			if(!file.exists()){
				file.createNewFile();
				System.out.println("文件不存在，新建成功！");
			}
			else{
				System.out.println("文件存在！");
			}
		}catch( Exception e){
			e.printStackTrace();
		}
	}
	
	public void ReadCSV() throws IOException {
		         
		       CsvReader reader = new CsvReader(inPath,',', Charset.forName("gb2312"));
		       reader.readHeaders();
		       while(reader.readRecord()) {
		           List.add(reader.getValues());
		       }
		       reader.close();
		       for (int row = 0;row < List.size(); row++) {
		          int Length=List.get(row).length;
		          if(Length > 0){
		        	  for(int i=0;i

 

javacsv2.0.jar下载

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