poi导出 excel

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poi导出 excel

package com.zc.excel;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.util.Region;

public class ExportExcel {
private HSSFWorkbook wb;
private HSSFSheet sheet;

public ExportExcel(HSSFWorkbook hssfWorkbook, HSSFSheet hssfSheet) {
  super();
  this.wb = hssfWorkbook;
  this.sheet = hssfSheet;
}

/**
* 创建通用EXCEL头部
*
* @param headString
*            头部显示的字符
* @param colSum
*            该报表的列数
*/
@SuppressWarnings({ "deprecation", "unused" })
public void createNormalHead(String headString, int colSum) {
  HSSFRow row = sheet.createRow(0);
  // 设置第一行
  HSSFCell cell = row.createCell(0);
  row.setHeight((short) 1000);
  HSSFCellStyle style = wb.createCellStyle();
  // Font font1 = wb.createFont();
  // font1.setColor((short)15);
  // style.setFont(font1);
  System.out.println("1111111111"+HSSFColor.GREEN.index);

  HSSFFont font1 = wb.createFont();
  font1.setColor(HSSFColor.RED.index);

  style.setFont(font1);

  style.setLocked(true);
  style.setAlignment((short) -1);

  // 定义单元格为字符串类型
  cell.setCellType(HSSFCell.ENCODING_UTF_16);// 中文处理
  cell.setCellValue(new HSSFRichTextString(headString));

  // 指定合并区域
  /**
   * public Region(int rowFrom, short colFrom, int rowTo, short colTo)
   */
  sheet.addMergedRegion(new Region(0, (short) 0, 0, (short) colSum));

  // 定义单元格格式，添加单元格表样式，并添加到工作簿
  HSSFCellStyle cellStyle = wb.createCellStyle();
  // 设置单元格水平对齐类型
  cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
  cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
  cellStyle.setWrapText(true);// 指定单元格自动换行

  // 设置单元格字体
  HSSFFont font = wb.createFont();
  // font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
  // font.setFontName("宋体");
  // font.setFontHeight((short) 600);
  // cellStyle.setFont(font);
  cell.setCellStyle(cellStyle);
}
/**
* 创建通用报表第二行
*
* @param params
*            统计条件数组
* @param colSum
*            需要合并到的列索引
*/
@SuppressWarnings("deprecation")
public void createNormalTwoRow(String[] params, int colSum) {
  // 创建第二行
  HSSFRow row1 = sheet.createRow(1);

row1.setHeight((short) 400);

HSSFCell cell2 = row1.createCell(0);

  cell2.setCellType(HSSFCell.ENCODING_UTF_16);
  cell2.setCellValue(new HSSFRichTextString("时间：" + params[0] + "至"
    + params[1]));

  // 指定合并区域
  /**
   * public Region(int rowFrom, short colFrom, int rowTo, short colTo)
   */
  sheet.addMergedRegion(new Region(1, (short) 0, 1, (short) colSum));

  HSSFCellStyle cellStyle = wb.createCellStyle();
  cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
  cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
  cellStyle.setWrapText(true);// 指定单元格自动换行

  // 设置单元格字体
  HSSFFont font = wb.createFont();
  font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
  font.setFontName("宋体");
  font.setFontHeight((short) 250);
  System.out.println("1111111111"+HSSFColor.RED.index);
  font.setColor(HSSFColor.RED.index);
  cellStyle.setFont(font);

cell2.setCellStyle(cellStyle);
}

/**
* 设置报表标题
*
* @param columHeader
* 标题字符串数组
*/
public void createColumHeader(String[] columHeader) {

// 设置列头在第三行
HSSFRow row2 = sheet.createRow(2);

// 指定行高
row2.setHeight((short) 600);

  // 单元格字体
  HSSFFont font = wb.createFont();
  font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
  font.setFontName("宋体");
  font.setFontHeight((short) 250);
  font.setColor(HSSFColor.RED.index);
  cellStyle.setFont(font);

  // 设置单元格背景色
  cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);
  cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

HSSFCell cell3 = null;

  for (int i = 0; i < columHeader.length; i++) {
   cell3 = row2.createCell(i);
   cell3.setCellType(HSSFCell.ENCODING_UTF_16);
   cell3.setCellStyle(cellStyle);
   cell3.setCellValue(new HSSFRichTextString(columHeader[i]));
  }
}

/**
* 创建内容单元格
*
* @param wb
*            HSSFWorkbook
* @param row
*            HSSFRow
* @param col
*            short型的列索引
* @param align
*            对齐方式
* @param val
*            列值
*/
public void cteateCell(HSSFWorkbook wb, HSSFRow row, int col, short align,
   String val) {
  HSSFCell cell = row.createCell(col);
  cell.setCellType(HSSFCell.ENCODING_UTF_16);
  cell.setCellValue(new HSSFRichTextString(val));
  HSSFCellStyle cellstyle = wb.createCellStyle();
  cellstyle.setAlignment(align);
  cell.setCellStyle(cellstyle);
}

/**
* 创建合计行
*
* @param colSum
* 需要合并到的列索引
* @param cellValue
*/
@SuppressWarnings("deprecation")
public void createLastSumRow(int colSum, String[] cellValue) {

  // 单元格字体
  HSSFFont font = wb.createFont();
  font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
  font.setColor(HSSFColor.RED.index);
  font.setFontName("宋体");
  font.setFontHeight((short) 250);
  cellStyle.setFont(font);
  // 获取工作表最后一行
  HSSFRow lastRow = sheet.createRow((short) (sheet.getLastRowNum() + 1));
  HSSFCell sumCell = lastRow.createCell(0);

  sumCell.setCellValue(new HSSFRichTextString("合计"));
  sumCell.setCellStyle(cellStyle);
  // 合并最后一行的第零列-最后一行的第一列
  sheet.addMergedRegion(new Region(sheet.getLastRowNum(), (short) 0,
    sheet.getLastRowNum(), (short) colSum));// 指定合并区域

  for (int i = 2; i < (cellValue.length + 2); i++) {
   // 定义最后一行的第三列
   sumCell = lastRow.createCell(i);
   sumCell.setCellStyle(cellStyle);
   // 定义数组从0开始。
   sumCell.setCellValue(new HSSFRichTextString(cellValue[i - 2]));
  }
}

/**
* 输入EXCEL文件
*
* @param fileName
*            文件名
*/
public void outputExcel(String fileName) {
  FileOutputStream fos = null;
  try {
   fos = new FileOutputStream(new File(fileName));
   wb.write(fos);
   fos.close();
  } catch (FileNotFoundException e) {
   e.printStackTrace();
  } catch (IOException e) {
   e.printStackTrace();
  }
}

/**
* @return the sheet
*/
public HSSFSheet getSheet() {
return sheet;
}

/**
* @param sheet
* the sheet to set
*/
public void setSheet(HSSFSheet sheet) {
this.sheet = sheet;
}

/**
* @return the wb
*/
public HSSFWorkbook getWb() {
return wb;
}

/**
* @param wb
* the wb to set
*/
public void setWb(HSSFWorkbook wb) {
this.wb = wb;
}
}

package com.zc.excel;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

public class OutputExcel {
      public void exec() throws UnsupportedEncodingException, FileNotFoundException{
       System.out.println("helloworld");
          List<Student> list = new ArrayList<Student>();

          for(int i=0;i<500;i++){
           Student student = new Student(i+1, "Jeelon", 21, "贵阳市 ", "15085943968",
                      '男');
           list.add(student);
          }

          String fileName = "Excel.xls";
          fileName = new String(fileName.getBytes("GBK"), "iso8859-1");
          File f = new File("F:/"+fileName);
          OutputStream output = new FileOutputStream(f);
          BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);


          // 定义单元格报头
          String worksheetTitle = "Excel导出Student信息";

          HSSFWorkbook wb = new HSSFWorkbook();

          // 创建单元格样式
          HSSFCellStyle cellStyleTitle = wb.createCellStyle();
          // 指定单元格居中对齐
          cellStyleTitle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
          // 指定单元格垂直居中对齐
          cellStyleTitle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
          // 指定当单元格内容显示不下时自动换行
          cellStyleTitle.setWrapText(true);
          // ------------------------------------------------------------------
          HSSFCellStyle cellStyle = wb.createCellStyle();
          // 指定单元格居中对齐
          cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
          // 指定单元格垂直居中对齐
          cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
          // 指定当单元格内容显示不下时自动换行
          cellStyle.setWrapText(true);
          // ------------------------------------------------------------------
          // 设置单元格字体
          HSSFFont font = wb.createFont();
          font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
          font.setFontName("宋体");
          font.setFontHeight((short) 200);
          font.setColor(HSSFColor.GREEN.index);
          cellStyleTitle.setFont(font);

          // 工作表名
          String id = "id";
          String name = "name";
          String age = "age";
          String address = "address";
          String tel = "tel";
          String sex = "sex";

          HSSFSheet sheet = wb.createSheet();
          ExportExcel exportExcel = new ExportExcel(wb, sheet);
          // 创建报表头部
          exportExcel.createNormalHead(worksheetTitle, 6);
          // 定义第一行
          HSSFRow row1 = sheet.createRow(1);
          HSSFCell cell1 = row1.createCell(0);

          //第一行第一列

          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(id));
          //第一行第er列
          cell1 = row1.createCell(1);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(name));

          //第一行第san列
          cell1 = row1.createCell(2);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(age));

          //第一行第si列
          cell1 = row1.createCell(3);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(address));

          //第一行第wu列
          cell1 = row1.createCell(4);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(tel));

          //第一行第liu列
          cell1 = row1.createCell(5);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(sex));

          //第一行第qi列
          cell1 = row1.createCell(6);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(sex));

        //第一行第qi列
          cell1 = row1.createCell(7);
          cell1.setCellStyle(cellStyleTitle);
          cell1.setCellValue(new HSSFRichTextString(tel));


          //定义第二行
          HSSFRow row = sheet.createRow(2);
          HSSFCell cell = row.createCell(1);
          Student student = new Student();
          for (int i = 0; i < list.size(); i++) {
              student = list.get(i);
              row = sheet.createRow(i + 2);

              cell = row.createCell(0);
              cell.setCellStyle(cellStyle);
              cell.setCellValue(new HSSFRichTextString(student.getId() + ""));

              cell = row.createCell(1);
              cell.setCellStyle(cellStyle);
              cell.setCellValue(new HSSFRichTextString(student.getName()));

              cell = row.createCell(2);
              cell.setCellStyle(cellStyle);
              cell.setCellValue(new HSSFRichTextString(student.getAge() + ""));

              cell = row.createCell(3);
              cell.setCellStyle(cellStyle);
              cell.setCellValue(new HSSFRichTextString(student.getAddress() + ""));

              cell = row.createCell(4);
              cell.setCellStyle(cellStyle);
              cell.setCellValue(new HSSFRichTextString(student.getAddress()));

              cell = row.createCell(5);
              cell.setCellStyle(cellStyle);
              cell.setCellValue(new HSSFRichTextString(student.getTel()));

              cell = row.createCell(6);
              cell.setCellValue(new HSSFRichTextString(String.valueOf(student.getSex())));
              cell.setCellStyle(cellStyle);

              cell = row.createCell(7);
              cell.setCellValue(new HSSFRichTextString(String.valueOf(student.getSex())));
              cell.setCellStyle(cellStyle);

          }
          try {
              bufferedOutPut.flush();
              wb.write(bufferedOutPut);
              bufferedOutPut.close();
          } catch (IOException e) {
              e.printStackTrace();
              System.out.println("Output   is   closed ");
          } finally {
              list.clear();
          }

      }
}

package com.zc.excel;

public class Student {
private int id;
     private String name ;
     private int age;
     private String address;
     private String tel;
     private char sex;
     public int getId() {
         return id;
     }
     public void setId(int id) {
         this.id = id;
     }
     public String getName() {
         return name;
     }
     public void setName(String name) {
         this.name = name;
     }
     public int getAge() {
         return age;
     }
     public void setAge(int age) {
         this.age = age;
     }
     public String getAddress() {
         return address;
     }
     public void setAddress(String address) {
         this.address = address;
     }
     public String getTel() {
         return tel;
     }
     public void setTel(String tel) {
         this.tel = tel;
     }
     public char getSex() {
         return sex;
     }
     public void setSex(char sex) {
         this.sex = sex;
     }
     @Override
     public String toString() {
         return "Student [id=" + id + ", name=" + name + ", age=" + age
                 + ", address=" + address + ", tel=" + tel + ", sex=" + sex
                 + "]";
     }
     public Student(int id, String name, int age, String address, String tel,
             char sex) {
         super();
         this.id = id;
         this.name = name;
         this.age = age;
         this.address = address;
         this.tel = tel;
         this.sex = sex;
     }
     public Student() {
         super();
     }
}
package com.zc.excel;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class Excel extends HttpServlet {

public Excel() {
super();
}
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
}

public void doGet(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  System.out.println("helloworld");
        List<Student> list = new ArrayList<Student>();

        Student student1 = new Student(1, "Jeelon", 21, "贵阳市 ", "15085943968",
                '男');
        Student student2 = new Student(2, "fengxu", 21, "贵阳市 ", "15085943968",
                '男');
        Student student3 = new Student(3, "jerry", 21, "贵阳市 ", "15085943968",
                '男');
        Student student4 = new Student(4, "merry", 21, "贵阳市 ", "15085943968",
                '男');
        Student student5 = new Student(5, "lariiy", 21, "贵阳市 ", "15085943968",
                '男');
        Student student6 = new Student(6, "monr", 21, "贵阳市 ", "15085943968",
                '男');
        Student student7 = new Student(7, "join", 21, "贵阳市 ", "15085943968",
                '男');
        Student student8 = new Student(8, "jay chou", 21, "贵阳市 ",
                "15085943968", '男');
        Student student9 = new Student(9, "laonb", 21, "贵阳市 ", "15085943968",
                '男');
        Student student0 = new Student(0, "mudg", 21, "贵阳市 ", "15085943968",
                '男');

        list.add(student1);
        list.add(student2);
        list.add(student3);
        list.add(student4);
        list.add(student5);
        list.add(student6);
        list.add(student7);
        list.add(student8);
        list.add(student9);
        list.add(student0);

        String fileName = "导出Excel.xls";
        fileName = new String(fileName.getBytes("GBK"), "iso8859-1");
        response.reset();
        response.setHeader("Content-Disposition", "attachment;filename="
                + fileName);// 指定下载的文件名
        response.setContentType("application/vnd.ms-excel");
        response.setHeader("Pragma", "no-cache");
        response.setHeader("Cache-Control", "no-cache");
        response.setDateHeader("Expires", 0);
        OutputStream output = response.getOutputStream();
        BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);

        // 定义单元格报头
        String worksheetTitle = "Excel导出Student信息";

        HSSFWorkbook wb = new HSSFWorkbook();

        // 创建单元格样式
        HSSFCellStyle cellStyleTitle = wb.createCellStyle();
        // 指定单元格居中对齐
        cellStyleTitle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        // 指定单元格垂直居中对齐
        cellStyleTitle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
        // 指定当单元格内容显示不下时自动换行
        cellStyleTitle.setWrapText(true);
        // ------------------------------------------------------------------
        HSSFCellStyle cellStyle = wb.createCellStyle();
        // 指定单元格居中对齐
        cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        // 指定单元格垂直居中对齐
        cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
        // 指定当单元格内容显示不下时自动换行
        cellStyle.setWrapText(true);
        // ------------------------------------------------------------------
        // 设置单元格字体
        HSSFFont font = wb.createFont();
        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        font.setFontName("宋体");
        font.setFontHeight((short) 200);
        cellStyleTitle.setFont(font);

        // 工作表名
        String id = "id";
        String name = "name";
        String age = "age";
        String address = "address";
        String tel = "tel";
        String sex = "sex";

        HSSFSheet sheet = wb.createSheet();
        ExportExcel exportExcel = new ExportExcel(wb, sheet);
        // 创建报表头部
        exportExcel.createNormalHead(worksheetTitle, 6);
        // 定义第一行
        HSSFRow row1 = sheet.createRow(1);
        HSSFCell cell1 = row1.createCell(0);

        //第一行第一列

        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(id));
        //第一行第er列
        cell1 = row1.createCell(1);
        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(name));

        //第一行第san列
        cell1 = row1.createCell(2);
        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(age));

        //第一行第si列
        cell1 = row1.createCell(3);
        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(address));

        //第一行第wu列
        cell1 = row1.createCell(4);
        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(tel));

        //第一行第liu列
        cell1 = row1.createCell(5);
        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(sex));

        //第一行第qi列
        cell1 = row1.createCell(6);
        cell1.setCellStyle(cellStyleTitle);
        cell1.setCellValue(new HSSFRichTextString(sex));


        //定义第二行
        HSSFRow row = sheet.createRow(2);
        HSSFCell cell = row.createCell(1);
        Student student = new Student();
        for (int i = 0; i < list.size(); i++) {
            student = list.get(i);
            row = sheet.createRow(i + 2);

            cell = row.createCell(0);
            cell.setCellStyle(cellStyle);
            cell.setCellValue(new HSSFRichTextString(student.getId() + ""));

            cell = row.createCell(1);
            cell.setCellStyle(cellStyle);
            cell.setCellValue(new HSSFRichTextString(student.getName()));

            cell = row.createCell(2);
            cell.setCellStyle(cellStyle);
            cell.setCellValue(new HSSFRichTextString(student.getAge() + ""));

            cell = row.createCell(3);
            cell.setCellStyle(cellStyle);
            cell.setCellValue(new HSSFRichTextString(student.getAddress() + ""));

            cell = row.createCell(4);
            cell.setCellStyle(cellStyle);
            cell.setCellValue(new HSSFRichTextString(student.getAddress()));

            cell = row.createCell(5);
            cell.setCellStyle(cellStyle);
            cell.setCellValue(new HSSFRichTextString(student.getTel()));

            cell = row.createCell(6);
            cell.setCellValue(new HSSFRichTextString(String.valueOf(student.getSex())));
            cell.setCellStyle(cellStyle);

        }
        try {
            bufferedOutPut.flush();
            wb.write(bufferedOutPut);
            bufferedOutPut.close();
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("Output   is   closed ");
        } finally {
            list.clear();
        }
}
public void init() throws ServletException {

}

}

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