poi读取Excel内容

工作中经常会用的Excel数据读取用来页面展示和数据存储
以下为Springboot部分代码

package com.example.excel.controller;import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
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.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;import java.io.*;
import java.util.HashMap;
import java.util.Map;@RestController
@RequestMapping("/excel")
public class ExcelToDBController {@PostMapping("/xxx")public Map xxx(@RequestParam String filePath,@RequestParam String newFileName) {Map map = new HashMap();InputStream is = null;try {is = new FileInputStream((filePath + "/"+newFileName));Workbook wb = null;if ((filePath + newFileName).endsWith(".xlsx")) {wb = new XSSFWorkbook(is);} else if ((filePath + newFileName).endsWith(".xls") || (filePath + newFileName).endsWith(".et")) {wb = new HSSFWorkbook(is);}int numberOfSheets = wb.getNumberOfSheets();File file = new File("F:\\xxxx.txt");for (int i=0;i<numberOfSheets;i++){//System.out.println(wb.getSheetAt(i).getSheetName());Sheet sheet = wb.getSheetAt(i);int rowSize = sheet.getLastRowNum() + 1;for (int j = 2; j < rowSize; j++) {Row row = sheet.getRow(j);int cellSize = row.getLastCellNum();for (int m=0;m<cellSize;m++){if (m!=0&&m!=5){Cell cell = row.getCell(m);String sex = "";String payMent = "";if (m==1||m==2||m==3||m==4){sex = "1";//男性if (m==1)payMent="Y10";if (m==2)payMent="Y15";if (m==3)payMent="Y20";if (m==4)payMent="Y30";}else if (m==6||m==7||m==8||m==9){sex = "0";//女性if (m==6)payMent="Y10";if (m==7)payMent="Y15";if (m==8)payMent="Y20";if (m==9)payMent="Y30";}String aiClass = String.valueOf(i);if (!"".equals(cell.toString())){String sql = "INSERT INTO table_name(productCode,itemCode,itemDesc,age,sex,period,payMent,aiClass,rate,amount) " +"VALUES('xxx','xxx','xxx','"+(j-2)+"','"+sex+"','xxx','"+payMent+"','"+aiClass+"',"+cell.toString()+",'xxx');";System.out.println(sql);/*if (j%1000==0) {sql = sql + "\r\n" + "commit;";}*/toFile(file,sql);}}}}}wb.close();is.close();} catch (Exception ex) {ex.printStackTrace();}return map;}@PostMapping("/XXXX")public Map XXXX(@RequestParam String filePath,@RequestParam String newFileName) {Map map = new HashMap();InputStream is = null;try {is = new FileInputStream((filePath + "/"+newFileName));Workbook wb = null;if ((filePath + newFileName).endsWith(".xlsx")) {wb = new XSSFWorkbook(is);} else if ((filePath + newFileName).endsWith(".xls") || (filePath + newFileName).endsWith(".et")) {wb = new HSSFWorkbook(is);}int numberOfSheets = wb.getNumberOfSheets();//int numberOfSheets = 1;for (int i=0;i<numberOfSheets;i++){File file = new File("F:\\xxxxxx"+i+".txt");//System.out.println(wb.getSheetAt(i).getSheetName());Sheet sheet = wb.getSheetAt(i);int rowSize = sheet.getLastRowNum() + 1;for (int j = 1; j < rowSize; j++) {Row row = sheet.getRow(j);String sex = row.getCell(2).toString();if ("男性".equals(sex)){sex = "1";}else if ("女性".equals(sex)){sex = "0";}String age = row.getCell(3).toString();age = age.substring(0,age.length()-2);String payMent = "Y"+row.getCell(0).toString().substring(0,2);String gpIndex = payMent+"/xxx"+"/"+sex+"/"+age;int plyYear = new Double(row.getCell(4).getNumericCellValue()).intValue();String sql = "INSERT INTO `table_name` (`riskCode`, `grade`,`gpIndex`,`payment`,`period`,`sex`,`age`,`plyYear`,`gpValue`) " +"VALUES('xxx','"+String.valueOf(i)+"','"+gpIndex+"','"+payMent+"','xxxx','"+sex+"', '"+age+"',"+plyYear+",'"+row.getCell(5)+"');";if (j%1000==0) {sql = sql + "\r\n" + "commit;";}toFile(file,sql);System.out.println(sql);}}wb.close();is.close();} catch (Exception ex) {ex.printStackTrace();}return map;}public void toFile(File file,String data){BufferedWriter out = null;try {out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file, true)));out.write(data+"\r\n");} catch (Exception e) {e.printStackTrace();} finally {try {out.close();} catch (IOException e) {e.printStackTrace();}}}
}

        <!--java poi--><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>3.15</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>3.15</version></dependency>

以上为直接输出sql到文件中，可以改成使用数据源直接存库

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