POI文件excel文件导入导出

POI依赖的jar包

org.apache.poi

poi-ooxml

3.14

前台(使用easyUI框架)

//导出
$("#button-export").click(function(){
window.location.href="../../area_batchExport.action";
});

//导入

(“#button-import”).upload({
action: ‘../../area_batchImport.action’,
onSelect:function(){
this.autoSubmit = false;
var filename = this.filename();
// 只能导入指定格式的文件
var regex = /^.*.(xls|xlsx)/ ;

if(regex.test(filename)){

this.submit();

}else{

$.messager.alert(“警告”,”选择的文件格式不正确”,”warnin”);

}

},

onComplete : function(response){

alert(“文件上传成功！”);

}

});

后台文件导出代码编写

package sy.util;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.lang.reflect.Method;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.Iterator;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import org.apache.poi.hpsf.SummaryInformation;

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

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

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

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

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

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

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.ss.formula.functions.T;

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

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

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

import org.apache.poi.ss.util.CellRangeAddress;

import org.apache.poi.xssf.streaming.SXSSFCell;

import org.apache.poi.xssf.streaming.SXSSFRow;

import org.apache.poi.xssf.streaming.SXSSFSheet;

import org.apache.poi.xssf.streaming.SXSSFWorkbook;

import com.alibaba.fastjson.JSONArray;

import com.alibaba.fastjson.JSONObject;

public class ExcelUtil{

public static String NO_DEFINE = “no_define”;//未定义的字段

public static String DEFAULT_DATE_PATTERN=”yyyy年MM月dd日”;//默认日期格式

public static int DEFAULT_COLOUMN_WIDTH = 17;

/**

* 导出Excel 97(.xls)格式 ，少量数据

* @param title 标题行

* @param headMap 属性-列名

* @param jsonArray 数据集

* @param datePattern 日期格式，null则用默认日期格式

* @param colWidth 列宽 默认 至少17个字节

* @param out 输出流

*/

public static void exportExcel(String title,Map

后台文件导入代码编写

// 批量区域数据导入
//HSSFWorkbook是以xls结束的文件,即97-07版本文件,若是07以后的版本,将HSSFWorkbook,换为SXSSFWorkbook

@Action(value = "area_batchImport")
public String batchImport() throws IOException {
List<Area> areas = new ArrayList<Area>();

// 1、 加载Excel文件对象
HSSFWorkbook hssfWorkbook = new HSSFWorkbook(new FileInputStream(file));
// 2、 读取一个sheet
HSSFSheet sheet = hssfWorkbook.getSheetAt(0);
// 3、 读取sheet中每一行
for (Row row : sheet) {
if (row.getRowNum() == 0) {
// 第一行 跳过
continue;
}
// 跳过空行
if (row.getCell(0) == null
|| StringUtils.isBlank(row.getCell(0).getStringCellValue())) {
continue;
}
Area area = new Area();
area.setId(row.getCell(0).getStringCellValue());
area.setProvince(row.getCell(1).getStringCellValue());
area.setCity(row.getCell(2).getStringCellValue());
area.setDistrict(row.getCell(3).getStringCellValue());
area.setPostcode(row.getCell(4).getStringCellValue());
// 基于pinyin4j生成城市编码和简码
String province = area.getProvince();
String city = area.getCity();
String district = area.getDistrict();
province = province.substring(0, province.length() - 1);
city = city.substring(0, city.length() - 1);
district = district.substring(0, district.length() - 1);
// 简码
String[] headArray = PinYin4jUtils.getHeadByString(province + city
+ district);
StringBuffer buffer = new StringBuffer();
for (String headStr : headArray) {
buffer.append(headStr);
}
String shortcode = buffer.toString();
area.setShortcode(shortcode);
// 城市编码
String citycode = PinYin4jUtils.hanziToPinyin(city, "");
area.setCitycode(citycode);

areas.add(area);
}
//调用业务层保存数据
areaService.saveBatch(areas);

return NONE;
}