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JQuery 中怎么利用Ajax 导出报表,很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
js代码
$.ajax({ type: "GET", url: encodeURI("http://localhost:8080/a?dd=" + dayinList+"), beforeSend: function () { }, success: function (msg) { }, error: function () { } })
后台代码
@RestController public class LogDownloadApi { @GetMapping("/a") public void cs(@RequestParam("dd") String aa){ System.out.println(aa); } }
js代码
$.ajax({ type : "POST", url : "http://localhost:8080/logDownload", data : JSON.stringify({ logList : dayinList,//数据List logName : "logName"//数据String }), contentType : "application/json", dataType : "json", success: function (msg) { //成功执行 }, error: function () { //失败执行 } });
后台代码
@RestController public class LogDownloadApi { @PostMapping("/logDownload") public void ajaxPost(@RequestBody Map map){ System.out.println(map); } }
js代码
<button class="btn btn-primary pull-right" onclick="outputResult(' + id + ')">导出查询结果</button>
/*导出选择,并下载*/ function outputResult(str) { var logName=document.getElementById("logName").textContent; console.log(logName) var dayinList = []; var List = $(".checkbox" + str.id + ":checked"); for (var i = 0; i < List.length; i++) { dayinList.push(List[i].value) } var xhr = new XMLHttpRequest(); xhr.open('post', 'http://localhost:8080/logDownload', true); xhr.responseType = 'blob'; xhr.setRequestHeader('Content-Type', 'application/json;charset=utf-8'); xhr.onload = function () { if (this.status == 200) { var blob = this.response; var a = document.createElement('a'); var url = window.URL.createObjectURL(blob); a.href = url; //设置文件名称 a.download = logName+'.xls'; a.click(); } }; xhr.send(JSON.stringify({ logList : dayinList,//数据源 logName : logName//文件名 })); }
后台POST方法
@RestController public class LogDownloadApi { private final InputExcelService inputExcelService; public LogDownloadApi(InputExcelService inputExcelService) { this.inputExcelService = inputExcelService; } @PostMapping("/logDownload") public void aa(@RequestBody Map map, @Context HttpServletResponse response, @Context HttpServletRequest request) { List list = (List) map.get("logList"); String logName = (String) map.get("logName"); String fileName = logName.substring(1, logName.length()); try { inputExcelService.exportExcel(response, request, list, fileName); } catch (Exception e) { e.printStackTrace(); } } }
package com.yx.http.service; import org.apache.poi.hssf.usermodel.*; import org.apache.poi.ss.util.CellRangeAddress; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Service; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.text.SimpleDateFormat; import java.util.*; /** * Created by gao on 2018/12/24. * 报表下载 */ @Service public class InputExcelService { private SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd-hh-mm-ss"); /** * 创建报表 * * @param response 请求响应信息 * @param request 请求信息 * @param logList 日志数据结果 * @param xlsName 报表名称 * @throws Exception 抛出异常错误 */ public void exportExcel(HttpServletResponse response, HttpServletRequest request, List<String> logList, String xlsName)throws Exception{ /*第一步创建workbook*/ HSSFWorkbook wb = new HSSFWorkbook(); /*给表格簿赋值*/ HSSFSheet sheet = wb.createSheet("日志数据"); /*设置打印页面为水平居中*/ sheet.setHorizontallyCenter(true); /*第三步创建行row:添加表头0行*/ HSSFRow row = sheet.createRow(0); /*创建表标题与列标题单元格格式*/ HSSFCellStyle style = wb.createCellStyle(); /*居中*/ style.setAlignment(HSSFCellStyle.ALIGN_CENTER); /*下边框*/ style.setBorderBottom(HSSFCellStyle.BORDER_THIN); /*左边框*/ style.setBorderLeft(HSSFCellStyle.BORDER_THIN); /*上边框*/ style.setBorderTop(HSSFCellStyle.BORDER_THIN); /*右边框*/ style.setBorderRight(HSSFCellStyle.BORDER_THIN); HSSFFont font = wb.createFont(); font.setFontHeightInPoints((short) 16); style.setFont(font); /*创建表格内数据格式*/ HSSFCellStyle styleCell = wb.createCellStyle(); /*居中*/ styleCell.setAlignment(HSSFCellStyle.ALIGN_CENTER); /*下边框*/ styleCell.setBorderBottom(HSSFCellStyle.BORDER_THIN); /*左边框*/ styleCell.setBorderLeft(HSSFCellStyle.BORDER_THIN); /*上边框*/ styleCell.setBorderTop(HSSFCellStyle.BORDER_THIN); /*右边框*/ styleCell.setBorderRight(HSSFCellStyle.BORDER_THIN); HSSFFont fontCell = wb.createFont(); fontCell.setFontHeightInPoints((short) 14); styleCell.setFont(fontCell); /*创建下标为0的单元格*/ row = sheet.createRow(0); /*设定值 row.createCell列名*/ HSSFCell cell = row.createCell(0); cell.setCellValue("日志数据"); cell.setCellStyle(style); for (int i = 0; i < 12; i++) { cell = row.createCell(i + 1); cell.setCellValue(""); cell.setCellStyle(style); } /*起始行,结束行,起始列,结束列*/ CellRangeAddress callRangeAddress = new CellRangeAddress(0, 0, 0, 12); sheet.addMergedRegion(callRangeAddress); /*创建下标为1行的单元格*/ row = sheet.createRow(1); /*设定值*/ cell = row.createCell(0); cell.setCellValue("序号"); /*内容居中*/ cell.setCellStyle(style); /*设定值*/ cell = row.createCell(1); cell.setCellValue("日志数据"); cell.setCellStyle(style); /*自适应宽度*/ for (int i = 0; i <= 13; i++) { sheet.autoSizeColumn(i); sheet.setColumnWidth(i, sheet.getColumnWidth(i) * 12 / 10); } /*第五步插入数据*/ /*创建行(可在此for循环插入数据 row = sheet.createRow(i + 2))*/ for (int i = 0; i < logList.size(); i++) { row = sheet.createRow(2+i); //创建单元格并且添加数据 cell = row.createCell(0); cell.setCellValue(i+1); cell.setCellStyle(style); cell = row.createCell(1); cell.setCellValue(logList.get(i)); cell.setCellStyle(style); } String fileName = xlsName + ".xls"; String rtn = ""; fileName = URLEncoder.encode(fileName, "UTF8"); String userAgent = request.getHeader("User-Agent"); /*针对IE或者以IE为内核的浏览器:*/ if (userAgent != null) { userAgent = userAgent.toLowerCase(); /*IE浏览器,只能采用URLEncoder编码*/ if (userAgent.indexOf("msie") != -1) { rtn = "filename=\"" + fileName + "\""; } /*Opera浏览器只能采用filename**/ else if (userAgent.indexOf("opera") != -1) { rtn = "filename*=UTF-8''" + fileName; } /*Safari浏览器,只能采用ISO编码的中文输出*/ else if (userAgent.indexOf("safari") != -1) { try { rtn = "filename=\"" + new String(fileName.getBytes("UTF-8"), "ISO8859-1") + "\""; } catch (UnsupportedEncodingException e) { e.printStackTrace(); } } /*Chrome浏览器,只能采用MimeUtility编码或ISO编码的中文输出*/ // else if (userAgent.indexOf("applewebkit") != -1) { // fileName = MimeUtility.encodeText(fileName, "UTF8", "B"); // rtn = "filename=\"" + fileName + "\""; // } /* FireFox浏览器,可以使用MimeUtility或filename*或ISO编码的中文输出*/ else if (userAgent.indexOf("mozilla") != -1) { rtn = "filename*=UTF-8''" + fileName; } } response.setContentType("application/vnd.ms-excel"); response.setHeader("Content-Disposition", "attachment;" + rtn); response.setCharacterEncoding("UTF-8"); OutputStream outputStream = null; outputStream = response.getOutputStream(); wb.write(outputStream); outputStream.flush(); outputStream.close(); } /** * 排序 * @param list * @param orderByParams * @return */ public static List<Map<String, Object>> listContainMapSortByStringAsc(List<Map<String, Object>> list, String orderByParams) { Collections.sort(list, new Comparator<Map<String, Object>>() { @Override public int compare(Map<String, Object> o1, Map<String, Object> o2) { /*name1是从你list里面拿出来的一个*/ String name1 = o1.get(orderByParams).toString(); /*name1是从你list里面拿出来的第二个name*/ String name2 = o2.get(orderByParams).toString(); return name1.compareTo(name2); } }); return list; } }
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