CSV导出

CSV 导入导出工具类

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.List;

/**
 * CSV操作(导出和导入)
 *
 * @author wjm
 * @version 1.0 Nov 24, 2015 4:30:58 PM
 */
public class CSVUtils {

    /**
     * 导出
     * 
     * @param file
     *            csv文件(路径+文件名)，csv文件不存在会自动创建
     * @param dataList
     *            数据
     * @return
     */
    public static boolean exportCsv(File file, List<String> dataList) {
        boolean isSucess = false;

        FileOutputStream out = null;
        OutputStreamWriter osw = null;
        BufferedWriter bw = null;
        try {
            // OutputStreamWriter in_=new OutputStreamWriter(new
            // FileOutputStream("文件名"), "gbk");
            out = new FileOutputStream(file);
            osw = new OutputStreamWriter(out, "gbk");
            bw = new BufferedWriter(osw);
            if (dataList != null && !dataList.isEmpty()) {
                for (String data : dataList) {
                    bw.append(data).append("
");
                }
            }
            isSucess = true;
        } catch (Exception e) {
            isSucess = false;
        } finally {
            if (bw != null) {
                try {
                    bw.close();
                    bw = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (osw != null) {
                try {
                    osw.close();
                    osw = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (out != null) {
                try {
                    out.close();
                    out = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        return isSucess;
    }

    /**
     * 导入
     * 
     * @param file
     *            csv文件(路径+文件)
     * @return
     */
    public static List<String> importCsv(File file) {
        List<String> dataList = new ArrayList<String>();

        BufferedReader br = null;
        try {
            br = new BufferedReader(new FileReader(file));
            String line = "";
            while ((line = br.readLine()) != null) {
                dataList.add(line);
            }
        } catch (Exception e) {
        } finally {
            if (br != null) {
                try {
                    br.close();
                    br = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        return dataList;
    }
}