poi导入1--java

Pom.xml

 <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <poi.version>3.10-beta2</poi.version>
  </properties>

<!-- 加入POI核心依赖 -->

 <dependencies>

       <dependency>

              <groupId>org.apache.poi</groupId>

              <artifactId>poi</artifactId>

              <version>${poi.version}</version>

       </dependency>

       <!--为POI支持office openxml -->

       <dependency>

              <groupId>org.apache.poi</groupId>

              <artifactId>poi-ooxml</artifactId>

              <version>${poi.version}</version>

       </dependency>

       <dependency>

              <groupId>org.apache.poi</groupId>

              <artifactId>poi-scratchpad</artifactId>

              <version>${poi.version}</version>

       </dependency>

       <dependency>

           <groupId>net.sourceforge.jexcelapi</groupId>

           <artifactId>jxl</artifactId>

           <version>2.6.12</version>

       </dependency>

 </dependencies>

 

 

工具类

package com.jk.utils;

import java.io.IOException;  
import java.io.OutputStream;  
import java.util.ArrayList;  
import java.util.List;  
 
import javax.servlet.http.HttpServletResponse;  
 
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.CellRangeAddress;  
import org.apache.poi.hssf.util.HSSFColor;  
 
/**
 * 导出Excel公共方法
 * @version 1.0
 *  
 * @author wangcp
 *
 */  
public class ExportExcel {  
      
    //显示的导出表的标题  
    private String title;  
    //导出表的列名  
    private String[] rowName ;  
      
    private List<Object[]>  dataList = new ArrayList<Object[]>();
    
    HttpServletResponse response;  
      
    //构造方法，传入要导出的数据  
    public ExportExcel(String title,String[] rowName,List<Object[]>  dataList,HttpServletResponse  response){  
        this.dataList = dataList;  
        this.rowName = rowName;  
        this.title = title;  
        this.response = response;
    }  
              
    /*
     * 导出数据
     * */  
    public void export() throws Exception{  
        try{  
            //HSSFWorkbook是 03版的Excel,XSSFWorkbook是 版的Excel
            HSSFWorkbook workbook = new HSSFWorkbook();                     // 创建工作簿对象  
            HSSFSheet sheet = workbook.createSheet(title);                  // 创建工作表  
 
            // 产生表格标题行（大标题）  
            HSSFRow rowm = sheet.createRow(0);  
            HSSFCell cellTiltle = rowm.createCell(0);  
             
            //设置单元格样式
            //sheet样式定义【getColumnTopStyle()/getStyle()均为自定义方法 - 在下面  - 可扩展】  
            HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook);//获取列头样式对象  
            HSSFCellStyle style = this.getStyle(workbook);                  //单元格样式对象  
              
            //合并单元格 0,1,0,(rowName.length-1) 代表：起始行，结束行，起始列，结束列
            sheet.addMergedRegion(new CellRangeAddress(0, 1, 0, (rowName.length-1)));    
            //设置单元格样式
            cellTiltle.setCellStyle(columnTopStyle);  
            //设置单元格内容
            cellTiltle.setCellValue(title);  
 
            // 定义所需列数  
            int columnNum = rowName.length;  
            HSSFRow rowRowName = sheet.createRow(2);                // 在索引2的位置创建行(最顶端的行开始的第二行)  
              
            // 将列头设置到sheet的单元格中  
            for(int n=0;n<columnNum;n++){  
                HSSFCell  cellRowName = rowRowName.createCell(n);               //创建列头对应个数的单元格  
                cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING);             //设置列头单元格的数据类型  
                HSSFRichTextString text = new HSSFRichTextString(rowName[n]);  
                cellRowName.setCellValue(text);                                 //设置列头单元格的值  
                cellRowName.setCellStyle(columnTopStyle);                       //设置列头单元格样式  
            }  
              
            //将查询出的数据设置到sheet对应的单元格中  
            for(int i=0;i<dataList.size();i++){  
                  
                Object[] obj = dataList.get(i);//遍历每个对象  
                HSSFRow row = sheet.createRow(i+3);//创建所需的行数  
                  
                for(int j=0; j<obj.length; j++){  
                    HSSFCell  cell = null;   //设置单元格的数据类型  
//                    if(j == 0){  
//                        cell = row.createCell(j,HSSFCell.CELL_TYPE_NUMERIC);  
//                        cell.setCellValue(i+1);   
//                    }else{  
                        cell = row.createCell(j,HSSFCell.CELL_TYPE_STRING);  
                        if(!"".equals(obj[j]) && obj[j] != null){  
                            cell.setCellValue(obj[j].toString());                       //设置单元格的值  
                        }else {
                            cell.setCellValue("");
                        }
//                    }  
                    cell.setCellStyle(style);                                   //设置单元格样式  
                }  
            }  
            //让列宽随着导出的列长自动适应  
            for (int colNum = 0; colNum < columnNum; colNum++) {  
                int columnWidth = sheet.getColumnWidth(colNum) / 256;  
                for (int rowNum = 0; rowNum < sheet.getLastRowNum(); rowNum++) {  
                    HSSFRow currentRow;  
                    //当前行未被使用过  
                    if (sheet.getRow(rowNum) == null) {  
                        currentRow = sheet.createRow(rowNum);  
                    } else {  
                        currentRow = sheet.getRow(rowNum);  
                    }  
                    if (currentRow.getCell(colNum) != null) {  
                        HSSFCell currentCell = currentRow.getCell(colNum);  
                        if (currentCell.getCellType() == HSSFCell.CELL_TYPE_STRING ) {  
                            int length = 0;
                            if (null != currentCell.getStringCellValue() && !"".equals(currentCell.getStringCellValue())) {
                                length = currentCell.getStringCellValue().getBytes().length;  
                            }
                            if (columnWidth < length) {  
                                columnWidth = length;  
                            }  
                        }  
                    }  
                }  
                if(colNum == 0){  
                    sheet.setColumnWidth(colNum, (columnWidth-2) * 256);  
                }else{  
                    sheet.setColumnWidth(colNum, (columnWidth+4) * 256);  
                }  
            }  
              
            if(workbook !=null){  
                try  
                {  
                    String fileName = "Excel-" + String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xls";  
                    String headStr = "attachment; filename=\"" + fileName + "\"";  
                    response.setContentType("APPLICATION/OCTET-STREAM");  
                    response.setHeader("Content-Disposition", headStr);  
                    OutputStream out = response.getOutputStream();  
                    workbook.write(out);  
                }  
                catch (IOException e)  
                {  
                    e.printStackTrace();  
                }  
            }  
 
        }catch(Exception e){  
            e.printStackTrace();  
        }  
          
    }  
      
    /*  
     * 列头单元格样式
     */      
    public HSSFCellStyle getColumnTopStyle(HSSFWorkbook workbook) {  
          
          // 设置字体  
          HSSFFont font = workbook.createFont();  
          //设置字体大小  
          font.setFontHeightInPoints((short)11);  
          //字体加粗  
          font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);  
          //设置字体名字   
          font.setFontName("Courier New");  
          //设置样式;   
          HSSFCellStyle style = workbook.createCellStyle();  
          //设置底边框;   
          style.setBorderBottom(HSSFCellStyle.BORDER_THIN);  
          //设置底边框颜色;    
          style.setBottomBorderColor(HSSFColor.BLACK.index);  
          //设置左边框;     
          style.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
          //设置左边框颜色;   
          style.setLeftBorderColor(HSSFColor.BLACK.index);  
          //设置右边框;   
          style.setBorderRight(HSSFCellStyle.BORDER_THIN);  
          //设置右边框颜色;   
          style.setRightBorderColor(HSSFColor.BLACK.index);  
          //设置顶边框;   
          style.setBorderTop(HSSFCellStyle.BORDER_THIN);  
          //设置顶边框颜色;    
          style.setTopBorderColor(HSSFColor.BLACK.index);  
          //在样式用应用设置的字体;    
          style.setFont(font);  
          //设置自动换行;   
          style.setWrapText(false);  
          //设置水平对齐的样式为居中对齐;    
          style.setAlignment(HSSFCellStyle.ALIGN_CENTER);  
          //设置垂直对齐的样式为居中对齐;   
          style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);  
            
          return style;  
            
    }  
      
    /*   
     * 列数据信息单元格样式
     */    
    public HSSFCellStyle getStyle(HSSFWorkbook workbook) {  
          // 设置字体  
          HSSFFont font = workbook.createFont();  
          //设置字体大小  
          //font.setFontHeightInPoints((short)10);  
          //字体加粗  
          //font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);  
          //设置字体名字   
          font.setFontName("Courier New");  
          //设置样式;   
          HSSFCellStyle style = workbook.createCellStyle();  
          //设置底边框;   
          style.setBorderBottom(HSSFCellStyle.BORDER_THIN);  
          //设置底边框颜色;    
          style.setBottomBorderColor(HSSFColor.BLACK.index);  
          //设置左边框;     
          style.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
          //设置左边框颜色;   
          style.setLeftBorderColor(HSSFColor.BLACK.index);  
          //设置右边框;   
          style.setBorderRight(HSSFCellStyle.BORDER_THIN);  
          //设置右边框颜色;   
          style.setRightBorderColor(HSSFColor.BLACK.index);  
          //设置顶边框;   
          style.setBorderTop(HSSFCellStyle.BORDER_THIN);  
          //设置顶边框颜色;    
          style.setTopBorderColor(HSSFColor.BLACK.index);  
          //在样式用应用设置的字体;    
          style.setFont(font);  
          //设置自动换行;   
          style.setWrapText(false);  
          //设置水平对齐的样式为居中对齐;    
          style.setAlignment(HSSFCellStyle.ALIGN_CENTER);  
          //设置垂直对齐的样式为居中对齐;   
          style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);  
           
          return style;  
      
    }  
} 

 

 

Controller层

/**

        * <pre>expAccountList(导出账号信息)  

        * 修改备注： 用流的形式写出去

        * @param account

        * @param response</pre>

        */

       @RequestMapping("/expAccountList")

       publicvoid expAccountList(Accountaccount, HttpServletResponseresponse) {

             

              //2.拼装信息

              //title设置导出的sheet页的名称   以及上边的大标题

              String title = "账号信息"; 

              String[] rowsName = new String[]{"序号","用户名","联系电话","状态","注册来源","注册时间","用户类型","业务员工号"};

              List<Object[]>  dataList = new ArrayList<Object[]>();

              //1.查询账号信息

              try {

                    

                     List<Account>list =accountService.selectAll();

                     Object[] obj = null; 

                     for (Accountaccount2 :list) {

                            obj =new Object[rowsName.length];

                            obj[0] =account2.getId();

                            obj[1] =account2.getUsername();

                            obj[2] =account2.getTelphone();

                            obj[3] =account2.getStatus();

                            obj[4] =account2.getRegistersource();

                            obj[5] =account2.getRegisterdate();

                            obj[6] =account2.getUsertype();

                            obj[7] =account2.getDbqkms();

                            dataList.add(obj);

                     }

                     ExportExcelex =new ExportExcel(title,rowsName,dataList,response); 

                     ex.export(); 

                      

              } catch (Exceptione) {

                     e.printStackTrace();

              }

             

       }