JAVA导出EXCEL
public ActionForward outInckAdslDevNeLogExcel(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception{
String title = java.net.URLEncoder.encode("EXCEL标题", "UTF-8")+ ".xls";
response.setHeader("Content-disposition", "attachment;filename="+title);
String dslamip = request.getParameter("a");
String basip = request.getParameter("b");
String basport = request.getParameter("c");
String pvlan = request.getParameter("d");
String cvlan1 = request.getParameter("e");
String cvlan2 = request.getParameter("f");
String account1 = request.getParameter("g");
String account2 = request.getParameter("h");
String operaid = request.getParameter("OPERAID");
String operatime1 = request.getParameter("OPERATIME1");
String operaname = java.net.URLDecoder.decode(request.getParameter("OPERANAME"),"utf-8");
String operatime2 = request.getParameter("OPERATIME2");
String loginid = request.getParameter("LOGINID");
String operatype = java.net.URLDecoder.decode(request.getParameter("OPERATYPE"),"utf-8");
List titleList = new ArrayList();
titleList.add("a);
titleList.add("b");
titleList.add("c");
titleList.add("d");
titleList.add("e");
titleList.add("f");
titleList.add("g");
titleList.add("h");
titleList.add("时间");
titleList.add("操作员工号");
titleList.add("操作员登录ID");
titleList.add("操作员名称");
titleList.add("操作类型");
account2,operaid,operatime1,operatime2,loginid,operatype,operaname);
ResultWrap rw = dao.outInckAdslDevNeLogExcel(a, b, c, d, e, f,h,operaid,operatime1,operatime2,loginid,operatype,operaname);
if (rw != null){
TPubFunction.WriteExcel(titleList,rw,20, response);
}
return null;
}
TPubFunction处理类
package com.regaltec.inss.inck.inckutil;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.sql.Clob;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.zip.GZIPOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import com.regaltec.ccatsida.common.database.CommonRecord;
import com.regaltec.ccatsida.common.database.ResultWrap;
public class TPubFunction {
/**
* 每页显示数据的大小
*/
public static int iPageSize= 1000;
/**
* 将Clob字段转换成String
* @param clob
* @return
*/
public final static String clob2String(Clob clob) {
if (clob == null) {
return "";
}
StringBuffer sb = new StringBuffer(65535);// 64K
Reader clobStream = null;
try {
clobStream = clob.getCharacterStream();
char[] b = new char[60000];// 每次获取60K
int i = 0;
while ((i = clobStream.read(b)) != -1) {
sb.append(b, 0, i);
}
} catch (Exception ex) {
sb = null;
} finally {
try {
if (clobStream != null)
clobStream.close();
} catch (Exception e) {
}
}
if (sb == null)
return "";
else
return sb.toString();
}
/**
* 将字符 null 用空格替换
*
* @param AString
* 传入字符
* @return
*/
public static String formatStringNull(String AString) {
if (AString == null) {
return "";
} else {
return AString;
}
}
/**
* 将输入流转换成字节
*
* @param is
* 输入流
* @return
* @throws Exception
*/
public static byte[] getBytes(InputStream is) throws Exception {
byte[] data = null;
Collection chunks = new ArrayList();
byte[] buffer = new byte[1024 * 1000];
int read = -1;
int size = 0;
while ((read = is.read(buffer)) != -1) {
if (read > 0) {
byte[] chunk = new byte[read];
System.arraycopy(buffer, 0, chunk, 0, read);
chunks.add(chunk);
size += chunk.length;
}
}
if (size > 0) {
ByteArrayOutputStream bos = null;
try {
bos = new ByteArrayOutputStream(size);
for (Iterator itr = chunks.iterator(); itr.hasNext();) {
byte[] chunk = (byte[]) itr.next();
bos.write(chunk);
}
data = bos.toByteArray();
} finally {
if (bos != null) {
bos.close();
}
}
}
return data;
}
/**
* 将日期时间型转换成日期型字符
*
* @param ADateStr
* @return
*/
public static String DateTimeToDateStr(String ADateStr) {
return ADateStr.substring(0, 10);
}
/**
* 格式化字符串为日期时间型
*
* @param ADateStr
* @return
*/
public static String formatStringDateTime(String ADateStr) {
return ADateStr.substring(0, 16);
}
/**
* 将8859_1的字符串转换成GBK字符
*
* @param s
* @return
*/
public static String toChinese(String s) {
String sRet = null;
if (s == null) {
sRet = "";
} else {
try {
sRet = new String(s.getBytes("ISO8859-1"), "gb2312");
} catch (Exception e) {
System.err.println("字符ISO8859-1转换成gb2312出错");
}
}
return sRet;
}
/**
* 判断浏览器是否支持压缩的Web页面
* @param request
* @return
*/
public static boolean isGzipSupported(HttpServletRequest request) {
String encodings = request.getHeader("Accept-Encoding");
return ((encodings != null) && (encodings.indexOf("gzip") != -1));
}
/**
* 返回压缩输出流
*
* @param response
* @return
* @throws IOException
*/
public static PrintWriter getGzipWriter(HttpServletResponse response)
throws IOException {
return (new PrintWriter(
new GZIPOutputStream(response.getOutputStream())));
}
/**
* 获取系统当前时间
* @return
*/
public static String getSystemDateTime() {
Date dt = new Date();
SimpleDateFormat sftime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return sftime.format(dt);
}
/**
* 获取系统当前日期
* @return
*/
public static String getSystemDate() {
Date dt = new Date();
SimpleDateFormat sftime = new SimpleDateFormat("yyyy-MM-dd");
return sftime.format(dt);
}
/**
* 返回指定时间加分钟后的时间
* @param aDateTime 指定时间
* @param aMinute 加指定分钟数
* @return
* @throws ParseException
*/
public static String addDateTime(String aDateTime,int aMinute) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date aTaskStartTime = sdf.parse(aDateTime);
long Time=(aTaskStartTime.getTime()/1000)+aMinute*60;
aTaskStartTime.setTime(Time*1000);
return sdf.format(aTaskStartTime);
}
/**
* 判断两个时间的大小
* @param sDateStart
* @param sDateEnd
* @return false表示sDateStart>=sDateEnd,true表示sDateEnd>sDateStart
* @throws ParseException
*/
public static boolean equalsDate(String sDateStart,String sDateEnd) throws ParseException{
boolean aFalg = false;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date aDateStart = sdf.parse(sDateStart);
Date aDateEnd = sdf.parse(sDateEnd);
int result = aDateStart.compareTo(aDateEnd);
if (result > 0) aFalg = true;
return aFalg;
}
/**
* 导出Excel
* @param ATitle标题
* @param AQueryResult 数据集
* @param response 当前会话
* @throws Exception
*/
public synchronized static void WriteExcel(List ATitle,ResultWrap AQueryResult,int aColumnWidth,
HttpServletResponse response) throws Exception{
WritableWorkbook writbook = null;
writbook = Workbook.createWorkbook(response.getOutputStream());
WritableSheet sheet = writbook.createSheet("Sheet1", 0);
Label label = null;
boolean bFalg = false;
if (ATitle.size() > 0) bFalg = true;
for (int i = 0; i < ATitle.size(); i++){
label = new Label(i, 0, ATitle.get(i).toString());
sheet.addCell(label);
sheet.setColumnView(i, aColumnWidth);
}
int iStart = 0;
if (bFalg) iStart = 1;
for(int i = 0; i < AQueryResult.getrsTotalrows(); i++){
CommonRecord cr = AQueryResult.getRecord(i);
for (int j = 0; j < cr.getFieldCount(); j++) {
int type = cr.getType(j+1);
if (type == 12)
label = new Label(j, i + iStart, cr.getString(j+1));
if (type == 2)
label = new Label(j, i + iStart, Integer.toString(cr.getInt(j+1)));
sheet.addCell(label);
}
}
writbook.write();
writbook.close();
writbook = null;
AQueryResult = null;
}
}