java解析excel生成sql文件

序：需求是往数据库批量造测试数据、数量较多。用代码直接生成sql文件会省很多事。

注、引包：poi.jar系列引入即可。

        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.7</version>
        </dependency>   

ExcelBean为字段类。自己新建并添加相应字段即可。

package demo;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

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;

public class excelToSql {
        public static void executeInfo() throws IOException{

          String filePath = "D:/FavoriteVideo/testExcel.xlsx";    //指定本地的数据目录
          String slqPath = "D:/FavoriteVideo/testSql.sql";    //指定生成文件目录
          try {
              InputStream in = new FileInputStream(filePath);
              Workbook wb = new XSSFWorkbook(in);
              in.close();
              String sql = "";
              Sheet sheetAt = wb.getSheetAt(0);
              int lastRowNum = sheetAt.getLastRowNum();
              
              Map map = new HashMap();
              sql = "";
              List<ExcelBean> excelBean = getExcelBean(sql, sheetAt, lastRowNum);
              Map<String,String> map1 =new HashMap<>();
              for(ExcelBean bean :excelBean){
                  map1.put(bean.getTestName(),bean.getUser_());
              }
              Iterator<Map.Entry<String, String>> it = map1.entrySet().iterator();
              while (it.hasNext()) {
               Map.Entry<String, String> entry = it.next();
                   System.out.println("key= " + entry.getKey() + " and value= " + entry.getValue());
                   sql += String.format("INSERT IGNORE INTO `test_table_info` (`testName`, `updateTime`, `createTime`, `user_`) VALUES ('%s', now(), now(), '%s');
", entry.getKey(), entry.getValue());
              }
              System.out.println(map1);
              System.out.println(map1.size());

              File file = new File(slqPath);
              if(!file.exists()){
                  file.createNewFile();
              }
              byte[] bytes = sql.getBytes();
              OutputStream os = new FileOutputStream(slqPath);
              os.write(bytes);
              os.flush();
              os.close();
              System.out.println("sheets");
          } catch (FileNotFoundException e) {
              e.printStackTrace();
          } catch (IOException e) {
              e.printStackTrace();
          }
      }

        private static List<ExcelBean> getExcelBean(String sql, Sheet sheetAt, int lastRowNum) {
            List<ExcelBean> list = new ArrayList<>();
            for (int rowNum=0; rowNum <= lastRowNum; rowNum++){
                ExcelBean bean = new ExcelBean();    //创建一个单独Bean、
                  System.out.println("rowNum = "+rowNum);
                  Row row = sheetAt.getRow(rowNum);
                  String testName = "";
                  String user_ = "";
                  if (row != null){
                      Cell cell = row.getCell(0);
                      if (cell != null) {
                          testName = cell.getStringCellValue();
                          bean.setTestName(testName);
                      }
                      cell = row.getCell(1);
                      if (cell != null) {
                          user_ = cell.getStringCellValue();
                          bean.setUser_(user_);
                      }
                      /**
                       * 更多列在这里补充
                       */
                    }
                  list.add(bean);
              }
            return list;
        }
        

      public static void main(String args[]) throws IOException{
          long startTime = System.currentTimeMillis();
          executeInfo();
          long endTime = System.currentTimeMillis();
          System.out.println("耗时为m:" + (endTime - startTime)/1000);
      }

}

 excel测试数据：

生成.sql文件：

生成的.sql直接拿入数据库执行即可。(oracle库记得更改日期字段哦..)

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