package com.sysware.task.util;
import org.apache.poi.hssf.usermodel.*;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
/**
* 导出文件工具类
*/
public class ExportFileUtil {
/**
* 导出统计详情EXCEL
*/
public static void exportDetailExcel(List<Map<String, Object>> list, HttpServletResponse response) throws Exception {
// 创建表格
HSSFWorkbook wb = createFixationSheet(list);
// 初始化流
ByteArrayOutputStream os = new ByteArrayOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
// 表格定稿数据
wb.write(os);
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename=" + new String("统计详情_".getBytes("GB2312"), "ISO_8859_1") + getTimeStamp() + ".xls");
ServletOutputStream out = response.getOutputStream();
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
// 关闭流
if (bis != null)
bis.close();
if (bos != null)
bos.close();
if (os != null)
os.close();
}
}
/**
* 创建EXCEL表格
*
* @param list
* @throws Exception
*/
public static HSSFWorkbook createFixationSheet(List<Map<String, Object>> list) {
// 创建工作薄
HSSFWorkbook wb = new HSSFWorkbook();
// 创建工作表
HSSFSheet sheet = wb.createSheet("统计详情");
HSSFRow row = sheet.createRow((short) 0);
sheet.createFreezePane(0, 1);
// EXCEL样式
HSSFCellStyle cellstyle = wb.createCellStyle();
cellstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER_SELECTION);
cteateCell(row, (short) 0, "任务路径", cellstyle);
cteateCell(row, (short) 1, "名称", cellstyle);
cteateCell(row, (short) 2, "状态", cellstyle);
cteateCell(row, (short) 3, "完成形式", cellstyle);
cteateCell(row, (short) 4, "责任人", cellstyle);
cteateCell(row, (short) 5, "责任部门", cellstyle);
cteateCell(row, (short) 6, "计划开始", cellstyle);
cteateCell(row, (short) 7, "计划结束", cellstyle);
cteateCell(row, (short) 8, "所属专业", cellstyle);
cteateCell(row, (short) 9, "所属阶段", cellstyle);
cteateCell(row, (short) 10, "创建人", cellstyle);
if (list != null && list.size() > 0) {
for (int i = 0; i < list.size(); i++) {
Map<String, Object> map = list.get(i);
if (map != null && map.size() > 0) {
row = sheet.createRow(i + 1);
cteateCell(row, (short) 0, map.get("wbsCode") + "", cellstyle);
cteateCell(row, (short) 1, map.get("name") + "", cellstyle);
cteateCell(row, (short) 2, map.get("statusName") + "", cellstyle);
cteateCell(row, (short) 3, map.get("completedType") + "", cellstyle);
cteateCell(row, (short) 4, map.get("chargeManName") + "", cellstyle);
cteateCell(row, (short) 5, map.get("chargeDepartmentName") + "", cellstyle);
cteateCell(row, (short) 6, map.get("plannedStartTime") == null ? "" : map.get("plannedStartTime") + "", cellstyle);
cteateCell(row, (short) 7, map.get("plannedEndTime") == null ? "" : map.get("plannedEndTime") + "", cellstyle);
cteateCell(row, (short) 8, map.get("discipline") + "", cellstyle);
cteateCell(row, (short) 9, map.get("projectPhaseName") + "", cellstyle);
cteateCell(row, (short) 10, map.get("creatorName") + "", cellstyle);
}
}
}
return wb;
}
/**
* 方法重载,防止过度样式添加而导致的错误
*
* @param row 行
* @param col 列
* @param val 值
* @param cellstyle 样式
*/
private static void cteateCell(HSSFRow row, short col, String val, HSSFCellStyle cellstyle) {
HSSFCell cell = row.createCell(col);
cell.setCellValue(val);
cell.setCellStyle(cellstyle);
}
/**
* 创建单元格,设置表头且居中
*
* @param wb 工作簿
* @param row 行
* @param col 列
* @param val 值
*/
private static void cteateCell(HSSFWorkbook wb, HSSFRow row, short col, String val) {
HSSFCell cell = row.createCell(col);
cell.setCellValue(val);
HSSFCellStyle cellstyle = wb.createCellStyle();
cellstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER_SELECTION);
cell.setCellStyle(cellstyle);
}
/**
* 该方法用来产生一个时间字符串（即：时间戳）
*
* @return
*/
public static String getTimeStamp() {
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:MM:ss");
Date date = new Date();
return dateFormat.format(date);
}
}
后端调用
/**
* 导出统计详情数据
*
* @param params 查询任务详情参数集合
*/
@RequestMapping(value = "exportDetailData/{params}", method = RequestMethod.GET)
public void exportDetailData(@PathVariable String params, HttpServletResponse response) {
try {
// 解码、转Map
Map<String, Object> queryParams = JSON.parseObject(URLDecoder.decode(params, "UTF-8"));
// 获取任务详情数据
List<Map<String, Object>> list = getStatisticsTaskDetailData("exportType", queryParams);
// 导出EXCEL
ExportFileUtil.exportDetailExcel(list, response);
} catch (Exception e) {
e.printStackTrace();
}
}前端调用
// 导出任务点击事件
$("#detailExport").bind("click", function () {
var params = {
"queryType": "<%=queryType%>",
"chargeDepartmentId": "<%=chargeDepartmentId%>",
"projectId": "<%=projectId%>",
"statusId": "<%=statusId%>",
"folderType": "<%=folderType%>",
"modelId": "<%=modelId%>",
"createDepartmentId": "<%=createDepartmentId%>",
"creatorId": "<%=creatorId%>",
"chargeManId": "<%=chargeManId%>",
"planStartTime0": "<%=planStartTime0%>",
"planStartTime1": "<%=planStartTime1%>",
"planEndTime0": "<%=planEndTime0%>",
"planEndTime1": "<%=planEndTime1%>",
"actualStartTime0": "<%=actualStartTime0%>",
"actualStartTime1": "<%=actualStartTime1%>",
"actualEndTime0": "<%=actualEndTime0%>",
"actualEndTime1": "<%=actualEndTime1%>"
};
window.location.href = basePath + "/task/businessProjectStatistics/exportDetailData/" + encodeURI(encodeURI(JSON.stringify(params)))+".action";
});remark
1.AJAX调用方法不会弹下载EXCEL窗口,所以选择了window.location.href调用方式
2.window.location.href调用方式在数据传输的时候会乱码,所以用了加密方法