Java读取Excel文件转Json

Java读取Excel文件转Json

一、安装POI和fastjson依赖

	org.apache.poi
	poi
	3.9


	org.apache.poi
	poi-ooxml
	3.9



	com.alibaba
	fastjson
	1.2.60

二、代码

package excel2Json;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.poi.ss.usermodel.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.FileInputStream;

/**
 * Created by left on 2019/9/19.
 */
public class Main {

    private final static Logger logger = LoggerFactory.getLogger(Main.class);

    private final static ObjectMapper mapper = new ObjectMapper();

    public static void main(String[] args) {
        try {
            FileInputStream inp = new FileInputStream("/Users/left/Downloads/annual_budget_template.xlsx");
            Workbook workbook = WorkbookFactory.create(inp);
            //获取sheet数
            int sheetNum = workbook.getNumberOfSheets();
            JSONObject jsonObject = new JSONObject();
            for (int s = 0; s < sheetNum; s++) {
                // Get the Sheet of s.
                Sheet sheet = workbook.getSheetAt(s);
                //获取最大行数
                int rownum = sheet.getPhysicalNumberOfRows();
                if (rownum <= 1) {
                    continue;
                }
                //获取第一行
                Row row1 = sheet.getRow(0);
                //获取最大列数
                int colnum = row1.getPhysicalNumberOfCells();
                JSONArray jsonArray = new JSONArray();
                for (int i = 1; i < rownum; i++) {
                    Row row = sheet.getRow(i);
                    if (row != null) {
//                    List