maven依賴

<dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.28</version> </dependency> <dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>2.2.7</version><scope>compile</scope> </dependency>

Java工具類(lèi)

import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook;import java.io.File; import java.io.IOException; import java.util.LinkedHashMap; import java.util.Set;/*** @author: wangzhongxing* @date: 2021/12/20 14:01* @description: JSON數(shù)據(jù)轉(zhuǎn)Excel工具類(lèi)*/ public class ExcelUtil {/*** JSONArray轉(zhuǎn)Excel表格* 表格的數(shù)據(jù)列數(shù)取自于JSONArray第一個(gè)對(duì)象的所有key值，所JSONArray的第一行數(shù)據(jù)必須是全的，否則會(huì)導(dǎo)致部分?jǐn)?shù)據(jù)列顯示不出來(lái)* @param jsonArray* @param excelFilePath*/public static void jsonToExcel(JSONArray jsonArray, String excelFilePath) {try{//此處為你的json數(shù)組HSSFWorkbook sheets = jsonToExcel(jsonArray);// 文件下載File excelFile = new File(excelFilePath);sheets.write(excelFile);sheets.close();} catch (Exception e) {}}/*** json 轉(zhuǎn) excel* @param jsonArray* @return* @throws IOException*/private static HSSFWorkbook jsonToExcel(JSONArray jsonArray) {Set<String> keys = null;// 創(chuàng)建HSSFWorkbook對(duì)象HSSFWorkbook wb = new HSSFWorkbook();// 創(chuàng)建HSSFSheet對(duì)象HSSFSheet sheet = wb.createSheet("sheet0");int roleNo = 0;int rowNo = 0;// 創(chuàng)建HSSFRow對(duì)象HSSFRow row = sheet.createRow(roleNo++);// 創(chuàng)建HSSFCell對(duì)象// 創(chuàng)建表格標(biāo)題keys = jsonArray.getJSONObject(0).keySet();for (String s : keys) {HSSFCell cell = row.createCell(rowNo++);cell.setCellValue(s);}rowNo = 0;for (int i = 0; i < jsonArray.size(); i ++) {JSONObject jsonObject = jsonArray.getJSONObject(i);row = sheet.createRow(roleNo++);for (String s : keys) {HSSFCell cell = row.createCell(rowNo++);cell.setCellValue(jsonObject.getString(s));}rowNo = 0;}return wb;}public static void main(String[] args) {JSONArray jsonArray = new JSONArray();JSONObject o1 = new JSONObject();o1.put("screenWidth", 1280);o1.put("screenHight", 2270);o1.put("trackState", 1);jsonArray.add(o1);JSONObject o2 = new JSONObject(new LinkedHashMap<>());o2.put("screenWidth", 1270);o2.put("trackState", 2);jsonArray.add(o2);JSONObject o3 = new JSONObject(new LinkedHashMap<>());o3.put("screenHight", 1290);o3.put("trackState", 3);jsonArray.add(o3);jsonToExcel(jsonArray, "D:\\temp\\word\\export.xls");}}

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