用poi 将excel文件内容导入 保存到数据库

1.jsp

2.js

var downloadBtn = new Ext.Button({
		text:"导入模版下载",
		iconCls:'excel',
		handler:function(){
			var serverPath1 = location.protocol+"//"+location.host+"/xx/downLoad/metersInputModel_1.xls";
			var serverPath2 = location.protocol+"//"+location.host+"/xx/downLoad/metersInputModel_2.xls";
			Ext.Msg.show({
				title:'点击以下链接下载',
				msg: "1.基表导入模版下载
2.修正仪导入模版下载
若点击无法下载，请右击上述文字，选择“目标另存为”",
				buttons: Ext.Msg.OK,
				width:300
			});
		}	
	});
	var importXls = function(){
		var fileName=fileForm.form.findField('file').getValue();
		if(fileName.length<1){
			Ext.Msg.alert(message.tip,'请选择要导入的Excel文件!');
			return;
		}
		if(fileName.substring(fileName.lastIndexOf('.')+1)!='xls'){
			Ext.Msg.alert(message.tip,'仅支持导入Excel文件!');
			return;
		}
		if(Ext.isEmpty(btnTypeModel.getValue())){
			Ext.Msg.alert(message.tip,'请务必选择导入数据类型！');
			return;
		}
		fileForm.form.submit({
			url:path+'/MetersInput/importData.json',
			params:{type:btnTypeModel.getValue()},
			method:'post',
			waitMsg:'正在导入,请稍候...',
			success:function(form,action){	
				Ext.Msg.alert(message.tip, action.result.msg);//action.result.msg
				//刷新界面
				if(action.result.success){
					padStore.reload();					
				}
				fileForm.form.reset();
			},
			failure:function(form,action){
				Ext.Msg.alert(message.tip, action.result.msg);
				fileForm.form.reset();
			}
		});
		
	};
	var btnTypeModel  = new Ext.form.ComboBox({
		mode : 'local',
		triggerAction : 'all',
		name : 'tablestatus',
		hiddenName : 'tablestatus',
		fieldLabel : '类型',
		valueField : 'id',
		displayField : 'text',
		anchor : '100%',
		width:100,
		editable : false,
		allowBlank : false,
		mode : 'local',
		store : new Ext.data.SimpleStore({
			fields : [ 'id', 'text' ],
			data : [ [ '1', '类型1' ], 
			         [ '2', '类型2' ] 
			]
		})
	});
	var btnImport = new Ext.Button({
        text:'导  入  ',
		iconCls:'import',
        name    : 'import',
        handler : function(){importXls();}
    });
	var fileTopbar  = new Ext.Toolbar({
		margins:'0 0 0 0',
		bodyStyle:'0px 0px 0px 0px',
		items:[
		       '-','类型:',btnTypeModel,
		       '-',btnImport,
		       '-',downloadBtn,
		       '-']
	});
	//批量上传附件
	var fileForm = new Ext.form.FormPanel({
		bodyStyle : 'padding:0px 5px 0px 5px',
       	labelAlign : 'right',
       	labelWidth: 50,
        layout : 'column',
        fileUpload:true,
        enctype:'multipart/form-data',
		frame : true, 
		items : [{
			columnWidth:0.35,
			layout:'form',
			bodyStyle : 'padding:2px 0px 0px 0px',
			items:[{
				xtype:'fileuploadfield',
				buttonText:' 浏  览  ',
				fieldLabel:'文件位置',
				height:20,
				name:'file',
				anchor:'100%'}]		
		},{
			columnWidth:0.65,
			bodyStyle : 'padding:0px 0px 0px 0px',
			layout:'form',
			items:[fileTopbar]
		}]
	});
	var northPanel = new Ext.Panel({
		layout:'fit',
		region:'north',
		height:40,
		border:false,
		items:[fileForm]
	});

3.java

@RequestMapping(value="/importData",method=RequestMethod.POST)
	public void importData(@RequestParam("file") MultipartFile file,
			HttpServletResponse response,String type,ModelMap modelMap) throws IOException  {
	try{
			boolean success = Boolean.FALSE;
			String msg = null;
			if(!file.isEmpty()){
				InputStream inputStream = file.getInputStream();
				msg = this.getXlsData(type,inputStream);		//读取Excel并保存数据
				inputStream.close();
			}
			//判断是否成功, 和返回值
			if("failure".equals(msg) || msg==null){
				msg = "导入失败！";				
			}else if(msg.indexOf("success")!=-1){
				success = Boolean.TRUE;
				msg = msg.replace("success,", "");
			}else if("success".equals(msg)){
				success = Boolean.TRUE;
				msg = "导入成功！";
			}	
			response.setContentType("text/html;charset=utf-8");
			response.getWriter().write("{success:"+success+",msg:'"+msg+"'}");
		}catch(Exception e){
			modelMap.put("success", Boolean.FALSE);
			modelMap.put("msg", e.getMessage());
			e.printStackTrace();
			response.getWriter().write("{success:false,msg:'导入失败！'}");
		}
	}

public String getXlsData(String type, InputStream inputStream) {
		int colNum = 0, rowNum = 0, rowCount = 0;
		String result = "failure";
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		List list = new ArrayList();		
		try{
			HSSFWorkbook hssfworkbook = new HSSFWorkbook(inputStream);		
			// 第一个工作表
			HSSFSheet hssfsheet = hssfworkbook.getSheetAt(0);
			// 创建行对象
			HSSFRow tempRow = null;
			// 获得总行数
			rowCount = hssfsheet.getLastRowNum();
			if(rowCount > 0) {
				if("1".equals(type)){//基表
					//定义接收变量
					String tablestatus, mtrid, mtrvendor, brand, mtrtype, memometer, mtrspc, diameter, 
						maximum, minimum, productiondate, nextvaliddate, projectname, memo;				
					StringBuffer errorMsg = new StringBuffer();
					MetersInputBean mode = null;
					for (int i = 1; i < rowCount + 1; i++) {
						rowNum = i;			//获取行数
						colNum = 0;			//重置列数
						errorMsg.delete(0, errorMsg.length());		//清空错误信息, 再次使用
						// 构造一个空对象
						mode = new MetersInputBean();
						tempRow = hssfsheet.getRow(i);					
						//判断是否还有数据
						if (tempRow == null || tempRow.getCell(0) == null) {
							continue;
						}
						tablestatus = PoiCell.getCellValue(tempRow.getCell(colNum++));	//材料名称
						if(tablestatus.length()<=0) throw new Exception("类型不能为空！");
						mtrid = PoiCell.getCellValue(tempRow.getCell(colNum++));		//材料名称
						if(mtrid.length()<=0) throw new Exception("表号不能为空！");
						
						mtrvendor = PoiCell.getCellValue(tempRow.getCell(colNum++));	//单价
						brand = PoiCell.getCellValue(tempRow.getCell(colNum++));		//计量单位					
						mtrtype = PoiCell.getCellValue(tempRow.getCell(colNum++));					
						memometer = PoiCell.getCellValue(tempRow.getCell(colNum++));					
						mtrspc = PoiCell.getCellValue(tempRow.getCell(colNum++));
						diameter = PoiCell.getCellValue(tempRow.getCell(colNum++));
						maximum= PoiCell.getCellValue(tempRow.getCell(colNum++));
						minimum= PoiCell.getCellValue(tempRow.getCell(colNum++)); 
						productiondate= PoiCell.getCellValue(tempRow.getCell(colNum++));
						nextvaliddate= PoiCell.getCellValue(tempRow.getCell(colNum++)); 
						projectname= PoiCell.getCellValue(tempRow.getCell(colNum++)); 
						memo= PoiCell.getCellValue(tempRow.getCell(colNum++));						
						//设值
						mode.setTablestatus("1");
						mode.setMtrid(mtrid);
						mode.setMtrvendor(mtrvendor);
						mode.setBrand(brand);
						mode.setMtrtype(mtrtype);
						mode.setMtrspc(mtrspc);
						mode.setDiameter(diameter);
						mode.setMemometer(memometer);
						mode.setMaximum(Double.parseDouble(maximum));
						mode.setMinimum(Double.parseDouble(minimum));
						mode.setProductiondate(sdf.parse(productiondate));
						mode.setNextvaliddate(sdf.parse(nextvaliddate));
						mode.setProjectname(projectname);
						mode.setMemo(memo);					
						list.add(mode);										
					}
				}else if("2".equals(type)){//修正仪
					//定义接收变量
					String tablestatus, mtrid, mtrvendor, brand, aammtrtype, memometer,productiondate, nextvaliddate, projectname, memo;				
					StringBuffer errorMsg = new StringBuffer();
					MetersInputBean mode = null;
					for (int i = 1; i < rowCount + 1; i++) {
						rowNum = i;			//获取行数
						colNum = 0;			//重置列数
						errorMsg.delete(0, errorMsg.length());		//清空错误信息, 再次使用
						// 构造一个空对象
						mode = new MetersInputBean();
						tempRow = hssfsheet.getRow(i);					
						//判断是否还有数据
						if (tempRow == null || tempRow.getCell(0) == null) {
							continue;
						}
						tablestatus = PoiCell.getCellValue(tempRow.getCell(colNum++));	//材料名称
						if(tablestatus.length()<=0) throw new Exception("类型不能为空！");
						mtrid = PoiCell.getCellValue(tempRow.getCell(colNum++));		//材料名称
						if(mtrid.length()<=0) throw new Exception("表号不能为空！");
						mtrvendor = PoiCell.getCellValue(tempRow.getCell(colNum++));	
						brand = PoiCell.getCellValue(tempRow.getCell(colNum++));
						aammtrtype = PoiCell.getCellValue(tempRow.getCell(colNum++));
						memometer = PoiCell.getCellValue(tempRow.getCell(colNum++));										
						productiondate= PoiCell.getCellValue(tempRow.getCell(colNum++));
						nextvaliddate= PoiCell.getCellValue(tempRow.getCell(colNum++)); 
						projectname= PoiCell.getCellValue(tempRow.getCell(colNum++)); 
						memo= PoiCell.getCellValue(tempRow.getCell(colNum++));
											
						mode.setTablestatus("2");
						mode.setMtrid(mtrid);
						mode.setMtrvendor(mtrvendor);
						mode.setBrand(brand);
						mode.setMemometer(memometer);
						mode.setAammtrtype(aammtrtype);
						mode.setProductiondate(sdf.parse(productiondate));
						mode.setNextvaliddate(sdf.parse(nextvaliddate));
						mode.setProjectname(projectname);
						mode.setMemo(memo);											
						list.add(mode);										
					}
				}								
			}			
			//保存导入信息
			if(list.size() > 0){	
//				//判断表号是否存在
				for(MetersInputBean code:list){
					String sql = "select * from mms_meter where mtrid ='"+code.getMtrid()+"'";
					int rows = this.metersInputService.getRowCount(sql);
					if(rows>0) return "表号或修正仪编号["+code.getMtrid()+"]已存在，请核实！";						
				}
				try{
					result = this.metersInputService.insertXlsData(list);																						
				}catch (Exception e) {
					return "数据导入失败,请检查文件数据是否无误！";	
				}
			}else{
				return "Excel空或有误, 没有读取到数据！";
			}
			return result;
		}catch(Exception e){
			list.clear();
			e.printStackTrace();			
			//判断导入数据是否有误
			if(rowNum <= rowCount) result  = "第"+rowNum+"行"+colNum+"列数据有误, 请核实！
错误信息: "+e.getMessage()+"";
			return result;
		}
	}

@Transactional
	public String insertXlsData(List list) throws Exception{	
		SimpleDateFormat sdf_hms = new SimpleDateFormat("yyyyMMdd");
		DecimalFormat bigDf = new DecimalFormat("000000");
		String Changetime =  sdf_hms.format(new Date());
		int rows = 0;
		//代码转换
		String sql = "select * From　sys_code where parentid in('1.2.16','1.2.67','1.2.44','1.2.32')";
		List sysList = this.jdbcTemplate.query(sql, sysCodeRowMapper);
		Map map=  new HashMap();
		for(SysCode code:sysList){
			map.put(code.getValue(),code.getId());						
		}
		int index = 0;
		for(MetersInputBean code:list){
			//转码						
			code.setMtrvendor(map.get(code.getMtrvendor()));
			code.setMemometer(map.get(code.getMemometer()));
			code.setDiameter(map.get(code.getDiameter()));				
			String Changetime_Value = Changetime + String.valueOf(bigDf.format(++index));			
			
			SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
			String inSql = "insert into mms_meter(id,mtrid,brand,mtrvendor,mtrtype,mtrspc,"
					+ "diameter,projectname,maximum,minimum,isic,mtrstatus,tablestatus,changetime,memo,memometer,mtrposition";
			if(code.getProductiondate()!=null){
				inSql+=",productiondate";
			}
			if(code.getNextvaliddate()!=null){
				inSql+=",nextvaliddate";
			}
			inSql+=" ) "
					+ "values (mms_meter_seq.nextval,'" + (code.getMtrid()==null?"":code.getMtrid()) + "','"
					+ (code.getBrand()==null?"":code.getBrand()) + "','" 
					+ (code.getMtrvendor()==null?"":code.getMtrvendor()) + "'," + "'"
					+ (code.getMtrtype()==null?"":code.getMtrtype()) + "','" 
					+ (code.getMtrspc()==null?"":code.getMtrspc()) + "','"
					+ (code.getDiameter()==null?"":code.getDiameter()) + "','" 
					+ (code.getProjectname()==null?"":code.getProjectname()) + "','"
					+  code.getMaximum() + "','" + code.getMinimum() + "','"
					+ (code.getIsic()==null?"":code.getIsic()) + "','1.2.32.2','" 
					+  code.getTablestatus()+ "','"+ Changetime_Value +"','"
					+ (code.getMemo()==null?"":code.getMemo())+"','"
					+ (code.getMemometer()==null?"":code.getMemometer())+"','1.4.10.3'";
				if(code.getProductiondate()!=null){
					inSql += ",to_date('" + df.format(code.getProductiondate()) + "','yyyy-mm-dd')";
				}
				if(code.getNextvaliddate()!=null){
					inSql += ",to_date('" + df.format(code.getNextvaliddate()) + "','yyyy-mm-dd')";
				}
				inSql+=")";
				rows += this.jdbcTemplate.update(inSql);														
		}
		return "success,总共"+list.size()+"行, 成功导入"+rows+"行！";
	}