java簡單實現excel單列數據解析存庫&頁面回顯
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxInMemorySize">
<value>1638400</value>
</property>
</bean>
- jsp代碼 一個file添加一個change事件就好（簡潔的來哈，只要引入一個jquery庫即可）
<body>
<h3>測試導入</h3><hr/>
<input id="file" type="file">
<div id="showTb"></div>
</body>
<script type="text/javascript">
$(function(){
$("#file").change(function(){
if($("#file").val()!=""){
if($("#file").val().indexOf(".xls")<0){
alert("文件格式有誤");
$("#file").val("");
return false;
}
var formData=new FormData();
formData.append("file", $('#file')[0].files[0]);
$.ajax({
url: '${stx}/sixe/home!excelShow.do'+"?t="+Math.random(),
type: 'POST',
cache: false,
data: formData,
processData: false,
contentType: false,
async: false
}).done(function(data) {
if(data.code=="0"){
$("#showTb").empty();
var con = "<table><tr><td>導入手機號</td></tr>";
$.each( data.list, function(index,item){
con += "<tr><td>"+item+"</td></tr>";
});
con += "</table>";
$("#showTb").append(con);
}else{
alert(data.message);
}
}).fail(function(res) {
console.log(res);
alert("上傳失敗！");
return false;
});
}
});
});
</script>
@RequestMapping(value = "home!excelShow.do", method = RequestMethod.POST)
@ResponseBody
public Map<String ,Object> excelShow(HttpServletRequest request, HttpServletResponse response,
MultipartFile file){
Map<String ,Object> resultMap = new HashMap<String, Object>();
if (!(file != null && (file.getOriginalFilename().toLowerCase().endsWith("xls")
|| file.getOriginalFilename().toLowerCase().endsWith("xlsx")))) {
resultMap.put("code", "1");
resultMap.put("message", "文件格式不正確！");
return resultMap;
}
List<String> list= ExcelUtils.getPhones(file);
for(String phone:list){
System.out.println("導入："+phone);
}
resultMap.put("code", "0");
resultMap.put("list", list);
resultMap.put("message", "解析成功");
return resultMap;
}
package com.sixe.sixeApp.base.utils
import java.text.DecimalFormat
import java.util.ArrayList
import java.util.List
import org.apache.poi.ss.usermodel.Row
import org.apache.poi.ss.usermodel.Sheet
import org.apache.poi.ss.usermodel.Workbook
import org.apache.poi.ss.usermodel.WorkbookFactory
import org.springframework.web.multipart.MultipartFile
public class ExcelUtils {
public static List<String> getPhones(MultipartFile file){
//File file = new File(path)
List<String> set = new ArrayList<String>()
try {
// 輸入流
//InputStream inp = new FileInputStream(file)
//Workbook wb = Workbook.getWorkbook(file.getInputStream())
Workbook wb = WorkbookFactory.create(file.getInputStream())
// 獲得該工作區的第一個sheet
Sheet sheet = wb.getSheetAt(0)
// 總共有多少行,從0開始
int totalRows = sheet.getLastRowNum() + 1
if (totalRows > 50000) {
totalRows = 50000
}
for (int i = 0
// 取得該行
Row row = sheet.getRow(i)
// 註釋的代碼，是爲了防止excel文件有空行
if (row == null) {
continue
}
double cellValue = 0.0
try {
cellValue = row.getCell(0).getNumericCellValue()
} catch (Exception e) {
continue
}
String mobile = new DecimalFormat("#").format(cellValue)
if (mobile.length() != 11) {
continue
}
set.add(mobile)
}
} catch (Exception e) {
e.printStackTrace()
return null
}
return set
}
}
- 點擊選擇文件即可實現了（這裏默認第一行爲標題不會讀取）
- 這裏保存數據庫沒寫，已經解析出來了 保存list入數據庫就不難了吧.
