excel根据模板导出

一、前台代码

<script>

    $(function(){

        //文件下载

        jQuery.download = function(url, method, cateName, manuNum){

            jQuery('<form action="'+url+'" method="'+(method||'post')+'">' +  // action请求路径及推送方法

                        '<input type="text" name="cateName" value="'+cateName+'"/>' + // 品类名称

                        '<input type="text" name="manuNum" value="'+manuNum+'"/>' + // 厂号

                    '</form>')

            .appendTo('body').submit().remove();

        };

        

        

        $('#export').click(function(){

            var cateName = $('#selectCateName').val();

            var manuNum = $('#selectManuNum').val();

            $.download('/sys/excel/category/export', 'post', cateName, manuNum); // 下载文件

        })

    })

</script>

二、后台代码

package com.rhtop.buss.ocs.web;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import java.util.LinkedHashMap;

import java.util.List;

import javax.servlet.ServletContext;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONObject;

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

import org.apache.poi.poifs.filesystem.POIFSFileSystem;

import org.apache.poi.ss.usermodel.Row;

import org.apache.poi.ss.usermodel.Sheet;

import org.apache.poi.ss.usermodel.Workbook;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.context.ContextLoader;

import org.springframework.web.context.WebApplicationContext;

import com.rhtop.buss.common.entity.Category;

import com.rhtop.buss.common.entity.CodeValue;

import com.rhtop.buss.common.entity.ResultInfo;

import com.rhtop.buss.common.service.RestService;

import com.rhtop.buss.common.utils.DateUtils;

import com.rhtop.buss.common.web.BaseController;

@Controller

@RequestMapping("/sys/excel")

public class ExcelController extends BaseController {

    @Autowired

    private RestService service;

    

    

    @SuppressWarnings("rawtypes")

    @RequestMapping("category/export")

    public void excelCategoryExport(HttpServletRequest request,HttpServletResponse response,

            @RequestParam("cateName") String cateName,@RequestParam("manuNum") String manuNum){

        Category category = new Category();

        category.setCateName(cateName);

        category.setManuNum(manuNum);

        JSONObject jsonCategory = JSONObject.fromObject(category);

        ResultInfo readResult = (ResultInfo) service.invoke("relCustomerCategory-categoryExportList", "POST", jsonCategory.toString() , ResultInfo.class);

        List relCustomerCategorys = readResult.getRecords();

        

        WebApplicationContext webApplicationContext = ContextLoader.getCurrentWebApplicationContext();

        ServletContext servletContext = webApplicationContext.getServletContext();

        String s_path = servletContext.getRealPath("/");

        s_path = s_path.concat("WEB-INF/configs/templet");

        

        //首先:从本地磁盘读取模板excel文件,然后读取第一个sheet  

        InputStream inp = null;

        try {

            inp = new FileInputStream(s_path+File.separator+"categoryExport.xls");

        } catch (FileNotFoundException e1) {

            e1.printStackTrace();

            log.error("[ExcelController.excelCategoryExport]文件未找到异常", e1);

        }

        

        POIFSFileSystem fs = null;

        try {

            fs = new POIFSFileSystem(inp);

        } catch (IOException e) {

            e.printStackTrace();

            log.error("[ExcelController.excelCategoryExport]IO异常", e);

        }  

        Workbook wb = null;

        try {

            wb = new HSSFWorkbook(fs);

        } catch (IOException e) {

            e.printStackTrace();

            log.error("[ExcelController.excelCategoryExport]IO异常", e);

        }  

        Sheet sheet=wb.getSheetAt(0);  

          

        //开始写入数据到模板中: 需要注意的是,因为行头以及设置好,故而需要跳过行头  

        Row row = sheet.createRow(2);

        

        for (int i = 0; i < relCustomerCategorys.size(); i++){  

            row = sheet.createRow((int) i + 2);  

            LinkedHashMap lhMap = (LinkedHashMap) relCustomerCategorys.get(i);

            if(lhMap == null){continue;};

            //创建单元格，并设置值  

            if(lhMap.get("cateName") != null)

                row.createCell(0).setCellValue(lhMap.get("cateName").toString());  

            if(lhMap.get("cateStan") != null)

                row.createCell(1).setCellValue(lhMap.get("cateStan").toString());  

            if(lhMap.get("pkgQuan") != null)

                row.createCell(2).setCellValue(lhMap.get("pkgQuan").toString());

            if(lhMap.get("manuNum") != null)

                row.createCell(3).setCellValue(lhMap.get("manuNum").toString());

            if(lhMap.get("prodPla") != null)

                row.createCell(4).setCellValue(lhMap.get("prodPla").toString());    

            if(lhMap.get("comm") != null)

                row.createCell(5).setCellValue(lhMap.get("comm").toString());  

            if(lhMap.get("cusLoc") != null)

                row.createCell(6).setCellValue(lhMap.get("cusLoc").toString());  

            if(lhMap.get("cusChaVal") != null)

                row.createCell(7).setCellValue(lhMap.get("cusChaVal").toString());    

            if(lhMap.get("memberName") != null)

                row.createCell(8).setCellValue(lhMap.get("memberName").toString());

            if(lhMap.get("wholesalePri") != null)

                row.createCell(9).setCellValue(lhMap.get("wholesalePri").toString());

            if(lhMap.get("acptPri") != null)

                row.createCell(10).setCellValue(lhMap.get("acptPri").toString());  

            if(lhMap.get("spotMin") != null && lhMap.get("spotMax") != null )

                row.createCell(11).setCellValue(lhMap.get("spotMin").toString()+"-"+lhMap.get("spotMax").toString());  

            if(lhMap.get("interFutMin") != null && lhMap.get("interFutMax") != null )

                row.createCell(12).setCellValue(lhMap.get("interFutMin").toString()+"-"+lhMap.get("interFutMax").toString());  

            if(lhMap.get("futMin") != null && lhMap.get("futMax") != null )

                 row.createCell(13).setCellValue(lhMap.get("futMin").toString()+"-"+lhMap.get("futMax").toString());  

            if(lhMap.get("cateSup") != null)

                row.createCell(14).setCellValue(lhMap.get("cateSup").toString());

    
4000
        if(lhMap.get("uniOfferPri") != null)

                row.createCell(15).setCellValue(lhMap.get("uniOfferPri").toString());

            if(lhMap.get("offerAging") != null)

                row.createCell(16).setCellValue(lhMap.get("offerAging").toString());

        }

        try {

            response.setHeader("Content-Disposition", "attachment;filename="+new String(("品类信息表_"+DateUtils.getToday()+".xls").getBytes("utf-8"),"iso8859-1"));

        } catch (UnsupportedEncodingException e) {

            e.printStackTrace();

            log.error("[ExcelController.excelCategoryExport]编码异常", e);

        }  

        response.setContentType("application/ynd.ms-excel;charset=UTF-8");  

        try {

            OutputStream out = response.getOutputStream();

            wb.write(out);

            out.flush();  

            out.close();  

        } catch (IOException e) {

            e.printStackTrace();

            log.error("[ExcelController.excelCategoryExport]IO异常", e);

        }  
    }

}

三、导出模板示例