Java 导出 CSV

时间:2023-03-08 22:39:24
package com.cib.cap4j.cfn.util;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.List; /**
*
* CSV文件导出工具类
*
* Created on 2014-08-07
* @author
* @reviewer
*/
public class CSVUtils { /**
* CSV文件生成方法
* @param head
* @param dataList
* @param outPutPath
* @param filename
* @return
*/
public static File createCSVFile(List<Object> head, List<List<Object>> dataList,
String outPutPath, String filename) { File csvFile = null;
BufferedWriter csvWtriter = null;
try {
csvFile = new File(outPutPath + File.separator + filename + ".csv");
File parent = csvFile.getParentFile();
if (parent != null && !parent.exists()) {
parent.mkdirs();
}
csvFile.createNewFile(); // GB2312使正确读取分隔符","
csvWtriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(
csvFile), "GB2312"), 1024);
// 写入文件头部
writeRow(head, csvWtriter); // 写入文件内容
for (List<Object> row : dataList) {
writeRow(row, csvWtriter);
}
csvWtriter.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
csvWtriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return csvFile;
} /**
* 写一行数据方法
* @param row
* @param csvWriter
* @throws IOException
*/
private static void writeRow(List<Object> row, BufferedWriter csvWriter) throws IOException {
// 写入文件头部
for (Object data : row) {
StringBuffer sb = new StringBuffer();
String rowStr = sb.append("\"").append(data).append("\",").toString();
csvWriter.write(rowStr);
}
csvWriter.newLine();
}
}
public @ResponseBody void exportExcel(HttpServletRequest request, HttpServletResponse response, KhxxCxVO vo) throws IOException{
File csvFile = createCSVFile(request,vo); BufferedInputStream bis = null;
BufferedOutputStream bos = null; response.setHeader("Content-disposition", "attachment; filename=" + URLEncoder.encode(csvFile.getName(), "UTF-8")); response.setHeader("Content-Length", String.valueOf(csvFile.length())); bis = new BufferedInputStream(new FileInputStream(csvFile));
bos = new BufferedOutputStream(response.getOutputStream());
byte[] buff = new byte[2048];
while (true) {
int bytesRead;
if (-1 == (bytesRead = bis.read(buff, 0, buff.length))) break;
bos.write(buff, 0, bytesRead);
}
bis.close();
bos.close();
} public File createCSVFile(HttpServletRequest request,KhxxCxVO vo){ vo.setKhxm(StringUtil.formatDbLikeValue(vo.getKhxm())); String yybh = ContextUtil.getLoginUser().getUserId();
String cur_ssjg = ContextUtil.getLoginUser().getUserUnit();
String unitPath = ContextUtil.getLoginUser().getUnitPath(); IPStaffVO staff = ipStaffService.findStaffByKey(yybh); String yhlx = staff.getYhlx(); if((!cur_ssjg.equals(unitPath)) && yhlx.equals("2")){
vo.setCur_path(StringUtil.formatDbLeftLikeValue(unitPath.trim()));
}else if(yhlx.equals("1")){
vo.setCur_ssjg(cur_ssjg.trim());
} // 设置表格头
Object[] head = {"客户姓名", "证件类型", "证件号码", "银行账号", "理财账号", "客户类型", "风险等级", "归属状况", "归属机构", "客户经理", "营销比例(%)" };
List<Object> headList = Arrays.asList(head); List<KhxxCxVO> list = iKhxxCxService.findAllInfos(vo, Integer.MAX_VALUE, 0); // 码表取出证件类型
Map<String, String> zjlx_map = new HashMap<String, String>();
List<IPCodeInfoVO> zjlx_list = directoryService.findInfoListByTypeCode("zjlx", null);
if ((zjlx_list != null) && (zjlx_list.size() > 0)){
for (Iterator i$ = zjlx_list.iterator(); i$.hasNext(); ) {
IPCodeInfoVO ipci_vo = (IPCodeInfoVO)i$.next();
zjlx_map.put(ipci_vo.getMblxbh(), ipci_vo.getMbtmz());
}
}
Map<String, String> khlx_map = new HashMap<String, String>();
List<IPCodeInfoVO> khlx_list = directoryService.findInfoListByTypeCode("khlx", null);
if ((khlx_list != null) && (khlx_list.size() > 0)){
for (Iterator i$ = khlx_list.iterator(); i$.hasNext(); ) {
IPCodeInfoVO ipci_vo = (IPCodeInfoVO)i$.next();
khlx_map.put(ipci_vo.getMblxbh(), ipci_vo.getMbtmz());
}
}
Map<String, String> fxdj_map = new HashMap<String, String>();
List<IPCodeInfoVO> fxdj_list = directoryService.findInfoListByTypeCode("fxdj", null);
if ((fxdj_list != null) && (fxdj_list.size() > 0)){
for (Iterator i$ = fxdj_list.iterator(); i$.hasNext(); ) {
IPCodeInfoVO ipci_vo = (IPCodeInfoVO)i$.next();
fxdj_map.put(ipci_vo.getMblxbh(), ipci_vo.getMbtmz());
}
}
Map<String, String> gszk_map = new HashMap<String, String>();
List<IPCodeInfoVO> gszk_list = directoryService.findInfoListByTypeCode("gszk", null);
if ((gszk_list != null) && (gszk_list.size() > 0)){
for (Iterator i$ = gszk_list.iterator(); i$.hasNext(); ) {
IPCodeInfoVO ipci_vo = (IPCodeInfoVO)i$.next();
gszk_map.put(ipci_vo.getMblxbh(), ipci_vo.getMbtmz());
}
}
// 设置数据
List<List<Object>> dataList = new ArrayList<List<Object>>();
List<Object> rowList = null;
for (int i = 0; i < list.size(); i++) {
rowList = new ArrayList<Object>();
KhxxCxVO kc_vo = list.get(i);
//rowList.add(i + 1);
rowList.add(kc_vo.getKhxm());
rowList.add(StringUtil.nullToSpace(zjlx_map.get(kc_vo.getZjlx().trim()))); // String zjhm= kc_vo.getZjhm();
// System.out.println("zjhm----------"+zjhm);
// DecimalFormat df = new DecimalFormat("#");//转换成整型
// String zjhm_2 = df.format(zjhm);
// System.out.println("zjhm2----------"+zjhm_2);
// String zjhm_str = String.format("%.0f",kc_vo.getZjhm());
// System.out.println("zjhmstr----------"+zjhm_str); rowList.add(kc_vo.getZjhm());
rowList.add(kc_vo.getZhdh());
rowList.add(kc_vo.getLczh());
rowList.add(StringUtil.nullToSpace(khlx_map.get(kc_vo.getKhlx().trim())));
rowList.add(StringUtil.nullToSpace(fxdj_map.get(kc_vo.getFxdj().trim())));
rowList.add(StringUtil.nullToSpace(gszk_map.get(kc_vo.getGszk().trim())));
rowList.add(kc_vo.getGsjgmc());
rowList.add(kc_vo.getGsjl());
rowList.add(kc_vo.getYxbl());
//String cjsj = DateTimeUtil.formatDateTime(kc_vo.getCjsj());
//rowList.add(cjsj);
dataList.add(rowList);
} // 导出文件路径
String downloadFilePath = "C:" + File.separator + "cap4j" + File.separator + "download" + File.separator;
IPCodeInfoVO codeInfoVO = directoryService.findInfoByTypeCodeAndInfoCode(
CFNConstants.PLATFORM_CONFIG, CFNConstants.PLATFORM_CONFIG_DOWNLOAD_PATH);
if (codeInfoVO != null && !StringUtils.isEmpty(codeInfoVO.getMbtmz())) {
downloadFilePath = codeInfoVO.getMbtmz();
} // String downloadFilePath = request.getSession().getServletContext().getRealPath("/exportload"); // 导出文件名称
String datetimeStr = DateTimeUtil.formatDate(new Date(), "yyyyMMddHHmmss");
String fileName = "客户列表_" + datetimeStr; // String fileName = "";
// try {
// fileName = URLDecoder.decode("khxxCx_list","utf-8");
// } catch (Exception e) {
// e.printStackTrace();
// } // 导出CSV文件
File csvFile = CSVUtils.createCSVFile(headList, dataList, downloadFilePath, fileName); return csvFile;
}
// Excel导出
function exportExcel(e) {
// csv导出
var params = "";
params += "khxm=" + $J.getbyName("khxm").getValue();
params += "&zjlx=" + $J.getbyName("zjlx").getValue();
params += "&zjhm=" + $J.getbyName("zjhm").getValue();
params += "&sjhm=" + $J.getbyName("sjhm").getValue();
params += "&khlx=" + $J.getbyName("khlx").getValue();
params += "&fxdj=" + $J.getbyName("fxdj").getValue();
params += "&zhdh=" + $J.getbyName("zhdh").getValue();
params += "&lczh=" + $J.getbyName("lczh").getValue();
params += "&gsjg=" + $J.getbyName("gsjg").getValue();
params += "&gsjl=" + $J.getbyName("gsjl").getValue();
params += "&gszk=" + $J.getbyName("gszk").getValue();
params += "&yxbl=" + $J.getbyName("yxbl").getValue();
window.location = "<%= request.getContextPath() %>/khxxCx/exportExcel.do?" + params;
}