如何用Java将excel数据导入数据库

我前端时间要导数据，，随便找代码弄了一个 能用的，贴给你看看。

public String uploadExcel(HttpServletRequest request) throws Exception {

MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request

System.out.println("通过传统方式form表单提交方式导入excel文件！")

InputStream in =null

List<List<Object>>listob = null

MultipartFile file = multipartRequest.getFile("upfile")

if(file.isEmpty()){

throw new Exception("文件不存在！")

}

in = file.getInputStream()

listob = new ImportExcelUtil().getBankListByExcel(in,file.getOriginalFilename())

in.close()

//该处可调用service相应方法进行数据保存到数据库中，现只对数据输出

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

List<Object>lo = listob.get(i)

System.out.println(lo.get(0))

System.out.println(lo.get(1))

Word word = new Word()

word.setId(UUIDTools.getUUID())

word.setChinese(lo.get(1).toString())

word.setEnglish(lo.get(0).toString())

wordService.saveEnglishWord(word)

/* InfoVo vo = new InfoVo()

vo.setCode(String.valueOf(lo.get(0)))

vo.setName(String.valueOf(lo.get(1)))

vo.setDate(String.valueOf(lo.get(2)))

vo.setMoney(String.valueOf(lo.get(3)))

System.out.println("打印信息-->机构:"+vo.getCode()+" 名称："+vo.getName()+" 时间："+vo.getDate()+" 资产："+vo.getMoney()) */

}

return "result"

}

ImportExcelUtil类的getBankListByExcel方法：

public List<List<Object>>getBankListByExcel(InputStream in,String fileName) throws Exception{

List<List<Object>>list = null

//创建excel工作簿

Workbook work = this.getWorkbook(in,fileName)

Sheet sheet = null

Row row = null

Cell cell = null

list = new ArrayList<List<Object>>()

//遍历Excel中所有的sheet

for (int i = 0i <work.getNumberOfSheets()i++) {

sheet = work.getSheetAt(i)

if(sheet==null){continue}

//遍历当前sheet中的所有行

for (int j = sheet.getFirstRowNum()j <sheet.getLastRowNum()j++) {

row = sheet.getRow(j)

if(row==null||row.getFirstCellNum()==j){continue}

//遍历所有的列

List<Object>li = new ArrayList<Object>()

for (int y = row.getFirstCellNum()y <row.getLastCellNum()y++) {

cell = row.getCell(y)

li.add(this.getCellValue(cell))

}

list.add(li)

}

}

// work.close()

return list

}

前台弄个上传标签 访问这个action就行了。

import java.io.*

import java.text.SimpleDateFormat

import java.util.*

import java.sql.*

import java.util.Date

import java.util.HashMap

import java.util.Map

import jxl.*

public class SimUpdate {

private String fileName

public ZfzSimUpdate(String fileName){

this.fileName = fileName

}

static Map tNames

static{

tNames = new HashMap()

}

/**

* 用于产生 数据库的 ID 值，组成 [年月日时分秒(100-999)] 总共 17 位数.

* 根据不同的表名，可保证同一秒内产生的 ID 号不重复

*/

private static String getDtime() {

String rid

Date nd = new Date()

SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss")

rid = sdf.format(nd)

return rid

}

public String getSeqNumber(String tableName) {

if(tableName == null || "".equals(tableName))

tableName = "GENERY"

Integer it

// noinspection SynchronizeOnNonFinalField

synchronized(tNames){

it = (Integer)tNames.get(tableName)

if(it == null){

it = new Integer(100)

tNames.put(tableName, it)

}else{

if(it.intValue() >998)

it = new Integer(100)

else

it = new Integer(1 + it.intValue())

tNames.put(tableName, it)

}

}

return getDtime() + String.valueOf(it)

}

private void updateDb(){

try{

Connection conn = DbPool.connectDB()

if(conn != null){

Statement stmt = conn.createStatement()

jxl.Workbook rwb = null

try{

//构建Workbook对象 只读Workbook对象

//直接从本地文件创建Workbook

//从输入流创建Workbook

InputStream is = new FileInputStream(fileName)

rwb = Workbook.getWorkbook(is)

//Sheet(术语：工作表)就是Excel表格左下角的Sheet1,Sheet2,Sheet3但在程序中

//Sheet的下标是从0开始的

//获取第一张Sheet表

Sheet rs = rwb.getSheet(0)

//获取Sheet表中所包含的总列数

int rsColumns = rs.getColumns()

//获取Sheet表中所包含的总行数

int rsRows = rs.getRows()

//获取指这下单元格的对象引用

String simNumber = "",termSeqId = ""

//指定SIM卡号及序列号

for(int i=0i<rsRowsi++){

for(int j=0j<rsColumnsj++){

Cell cell = rs.getCell(j,i)

if(j==0){

simNumber = cell.getContents()

}

termSeqId = "633"+simNumber

}

String sql = "查询SQL"

int isOk = stmt.executeUpdate(sql)

if(isOk == 0 &&!simNumber.equals("")){

String termId = getSeqNumber("termInf")

String insertSql = "自定义INSERT"

int isAdd = stmt.executeUpdate(insertSql)

if(isAdd >0){

System.out.println("成功插入第"+i+"条数据")

}

}

//System.out.println("SIM卡号:"+simNumber+",序列号:"+termSeqId)

}

//以下代码为写入新的EXCEL,这里不使用,所以注释

/*

//利用已经创建的Excel工作薄创建新的可写入的Excel工作薄

jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(new File("D://Book2.xls"),rwb)

//读取第一张工作表

jxl.write.WritableSheet ws = wwb.getSheet(0)

//获取第一个单元格对象

jxl.write.WritableCell wc = ws.getWritableCell(0, 0)

//决断单元格的类型，做出相应的转化

if (wc.getType() == CellType.LABEL) {

Label l = (Label) wc

l.setString("The value has been modified.")

}

//写入Excel对象

wwb.write()

wwb.close()

*/

}catch(Exception e){

e.printStackTrace()

}

finally{

// *** 作完成时，关闭对象，翻译占用的内存空间

rwb.close()

}

}

}catch(Exception e){

e.printStackTrace()

}

}

public static void main(String args[]){

DbPool dbPool = new DbPool("dbConn.cfg")//连接数据库

SimUpdate simUpdate = new SimUpdate("zfz_sim.xls")

simUpdate.updateDb()

}

}

---