java通过jxl生成excel文档

Java代码
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.sql.SQLException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.List;

import sun.security.krb5.internal.crypto.c;

import com.sun.java_cup.internal.internal_error;

import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Colour;
import jxl.format.UnderlineStyle;
import jxl.write.Label;
import jxl.write.Number;
import jxl.write.NumberFormats;
import jxl.write.WritableCell;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

public class ExcelReport {

    private static WritableCellFormat wcf_value;//表格数据样式
    private static WritableCellFormat wcf_value_left;
    private static WritableCellFormat wcf_key;//表头样式
    private static WritableCellFormat wcf_name_left;//表名样式
    private static WritableCellFormat wcf_name_right;//表名样式
    private static WritableCellFormat wcf_name_center;//表名样式
    private static WritableCellFormat wcf_title;//页名称样式
    private static WritableCellFormat wcf_percent_float;

    private static final int MAXCOLS=7;//表名称样式

    static{
        try {
            //WritableFont wf_value = new WritableFont(WritableFont.ARIAL,10,WritableFont.NO_BOLD);
            WritableFont wf_key = new jxl.write.WritableFont(WritableFont.createFont("微软雅黑"), 10,WritableFont.BOLD);
            WritableFont wf_value = new jxl.write.WritableFont(WritableFont.createFont("微软雅黑"), 10,WritableFont.NO_BOLD);
            wcf_value = new WritableCellFormat(wf_value);
            wcf_value.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_value.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
            wcf_value.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);

            wcf_value_left = new WritableCellFormat(wf_value);
            wcf_value_left.setAlignment(jxl.format.Alignment.LEFT);
            wcf_value_left.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
            wcf_value_left.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
            wcf_value_left.setWrap(true);

            //WritableFont wf_key = new WritableFont(WritableFont.ARIAL,10,WritableFont.BOLD);
            wcf_key = new WritableCellFormat(wf_key);
            wcf_key.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_key.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);

            wcf_name_left = new WritableCellFormat(wf_key);
            wcf_name_left.setAlignment(Alignment.LEFT);
            wcf_name_left.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);

            wcf_name_right = new WritableCellFormat(wf_key);
            wcf_name_right.setAlignment(Alignment.RIGHT);

            wcf_name_center = new WritableCellFormat(wf_key);
            wcf_name_center.setAlignment(Alignment.CENTRE);

            jxl.write.NumberFormat wf_percent_float = new jxl.write.NumberFormat("0.00");
            wcf_percent_float= new jxl.write.WritableCellFormat(wf_value,wf_percent_float);
            wcf_percent_float.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_percent_float.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
            wcf_percent_float.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);


            //WritableFont wf_title = new WritableFont(WritableFont.ARIAL,14,WritableFont.BOLD);
            WritableFont wf_title = new jxl.write.WritableFont(WritableFont.createFont("微软雅黑"), 14,WritableFont.BOLD);
            wcf_title = new WritableCellFormat(wf_title);
            wcf_title.setAlignment(Alignment.CENTRE);

  &

补充：软件开发 , Java ,