簡單demo

資料結構：包含三個string型別的資料，且都被逗號分隔開，匯入到excel中

ValueObject .java 類

package XlsDto2Excel;


public class ValueObject {
	private String name;      /**名稱**/
	private String value;    /**值**/
	private String unit;    /**單位**/


	private boolean isComment = false;
	private String comment;


	public ValueObject(String name,String value, String unit) {
		this.value = value;
		this.unit = unit;
	    this.name = name;
	}


	public ValueObject(String comment) {
		this.comment = comment;
		this.isComment = true;
	}


	public boolean isComment() {
		return isComment;
	}


	public String getComment() {
		return comment != null ? comment : "";
	}


	public String getName() {
		return name != null ? name : "";
	}


	public String getValue() {
		return value != null ? value : "";
	}


	public String getUnit() {
		return unit != null ? unit : "";
	}
}
 

package XlsDto2Excel;

import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.*;

public class allmain {

	public static void main(String[] args) throws IOException {
		Scanner in = null;
        List<String> inStrs = new ArrayList<>();
        try {
            in = new Scanner(new File("E:/data_stats_0.txt"));
            while (in.hasNextLine()) {
                inStrs.add(in.nextLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (in != null) {
                in.close();
            }
        }


        List<ValueObject> vals = new ArrayList<>();
        for (String str : inStrs) {
            str = str.trim();
            if (str.startsWith("**") && str.endsWith("**")) {
                vals.add(new ValueObject(str));
            } else {
                String[] res = str.split(",", 3);
                if (res.length == 3) {
                    vals.add(new ValueObject(res[0], res[1], res[2]));
                }
            }
        }


        HSSFWorkbook workbook = new HSSFWorkbook();
        HSSFSheet sheet = workbook.createSheet("default");

        for (int i = 0; i < vals.size(); ++i) {
            HSSFRow row = sheet.createRow(i);
            ValueObject val = vals.get(i);

            if (val.isComment()) {
                row.createCell(7).setCellValue(val.getComment());
            } else {

                row.createCell(7).setCellValue(val.getName());
                row.createCell(8).setCellValue(val.getValue());
                row.createCell(9).setCellValue(val.getUnit());
            }
        }


        try {
            FileOutputStream out = new FileOutputStream(new File("E:/data_stats_0.xls"));
            workbook.write(out);
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        workbook.close();
	}

}