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
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$.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;
}
}看完上述内容是否对您有帮助呢？如果还想对相关知识有进一步的了解或阅读更多相关文章，请关注亿速云行业资讯频道，感谢您对亿速云的支持。
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原文链接：https://my.oschina.net/u/3896587/blog/3114771
