java解析excel：案例一

需求：

转成

代码如下：

　　

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang.StringUtils;

import com.common.util.ExcelReader;
import com.common.util.dto.ExcelDto;
import com.common.util.dto.ExcelSheetDto;
import com.dr.util.PublicUtil;

public class ExcelReaderTest {
    public static void main(String[] args) throws FileNotFoundException {
        //引入excel解析
        ExcelReader excelReader = new ExcelReader();
        
//        List<Map> list = new ArrayList<Map>();
        Map<String, List<String>> map = new HashMap<String, List<String>>();
        File file = new File("E:\\testExcel\\sxd.xlsx");
        
        try {
            ExcelDto excelDto = excelReader.readExcel(new FileInputStream(file), file.getName());
            List<ExcelSheetDto> excelSheet= excelDto.getExcelSheetList();
            
            //获取最后一个不为空的sheet
            ExcelSheetDto sheetDto=PublicUtil.getLastNotNullSheet(excelSheet);
            
            String[] colNames = sheetDto.getColNames();
            
            String[][] contents = sheetDto.getRowsContent();
            // 设置时间
            for (int i = 1; i < contents.length; i++) {
                if (contents[i] != null && StringUtils.isEmpty(contents[i][0])
                        && i > 0) {
                    contents[i][0] = contents[i - 1][0];
                }
            }
            
            if(colNames!=null){
                for (int i = 0; i < colNames.length; i++) {
                    int count = 1;
                    String colName = colNames[i];
                    List<String> list = new ArrayList<String>();
                    for (int j = 0; j < contents.length; j++) {
                        list.add(contents[j][i]);
                    }
                    map.put(colName, list);
                }
                for (int i = 0; i < map.get("日期").size()/2; i++) {
                    for (int j = 1; j < 5; j++) {
                        System.out.println(map.get("日期").get(i*2));
                        String apptype = "XJ_JLM_JLM0"+j;
                        System.out.println(apptype);
                        System.out.println(map.get(apptype).get(i*2));
                        System.out.println(map.get(apptype).get(i*2+1));
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        
        
    }
}