@@ -1,217 +1,380 @@
import java.io.IOException ;
import java.io.OutputStream ;
import java.lang.reflect.Field ;
import java.text.SimpleDateFormat ;
import java.util.Calendar ;
import java.util.Date ;
import java.util.List ;
import java.util.Map ;
import javax.servlet.http.HttpServletRequest ;
import javax.servlet.http.HttpServletResponse ;
import org.apache.poi.hssf.usermodel.HSSFWorkbook ;
import org.apache.poi.ss.usermodel.Cell ;
import org.apache.poi.ss.usermodel.Row ;
import org.apache.poi.ss.usermodel.Sheet ;
import org.apache.poi.ss.usermodel.Workbook ;
/ * *
* 使用poi报表导出工具类
* 把poi的一个调用接口抽出来 ， 便于导出功能的管理
* @author LiangXianYou lxy208 @126.com
* @param
*
* /
public class ExcelUtil {
/ * *
* < b > 导出list中map做载体的数据到excel < / b > < br >
* 参数说明 ： < br >
* list : 存放了Map数据的集合 < br >
* hdNames : 表头列名 < br >
* hds : 对应表头的数据KEY < br >
* xlsName : 导出文件名 < br >
* @author LiangXianYou
* @date 2015 - 6 - 25 上午10 : 22 : 51
* /
public static < T > boolean outPutExcelByMap ( List < Map < String , Object > > list , String [ ] hdNames , String [ ] hds , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws Exception {
Workbook wb = new HSSFWorkbook ( ) ; / / 创建工作薄
Sheet sheet = wb . createSheet ( ) ; / / 创建工作表
sheet . autoSizeColumn ( ( short ) 0 ) ; / / 自适应宽度
/ / 写入表头 - - - Excel的第一行数据
Row nRow = sheet . createRow ( 0 ) ; / / 创建行
for ( int i = 0 ; i < hdNames . length ; i + + ) {
Cell nCell = nRow . createCell ( i ) ; / / 创建单元格
nCell . setCellValue ( hdNames [ i ] ) ;
}
/ / 写入每一行数据 - - - 一条记录就是一行数据
for ( int i = 0 ; i < list . size ( ) ; i + + ) {
for ( int j = 0 ; j < hds . length ; j + + ) {
Object o = list . get ( i ) . get ( hds [ j ] ) ; / / 得到列的值
data2Excel ( sheet , o , i + 1 , j ) ; / / 将值写入Excel
}
}
return downloadExcel ( wb , xlsName , request , response ) ;
}
/ * *
* Excels导出多个sheet
* @author LiangXianYou
* @date 2015 - 6 - 16 下午5 : 56 : 56
* /
/ / map : data , sheetName , hds , hdNames , xlsName ; request , response
public static < T > boolean outPutExcels ( List < Map < String , Object > > list , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws Exception {
Workbook wb = new HSSFWorkbook ( ) ; / / 创建工作薄
for ( int i = 0 ; i < list . size ( ) ; i + + ) {
Map < String , Object > map = list . get ( i ) ;
Sheet sheet = wb . createSheet ( ) ; / / 创建工作表
String sheetName = ( String ) map . get ( " sheetName " ) ;
wb . setSheetName ( i , sheetName ) ;
/ / 写入表头 - - - Excel的第一行数据
Row nRow = sheet . createRow ( 0 ) ; / / 创建行
String [ ] hdNames = ( String [ ] ) map . get ( " hdNames " ) ;
for ( int j = 0 ; j < hdNames . length ; j + + ) {
Cell nCell = nRow . createCell ( j ) ; / / 创建单元格
nCell . setCellValue ( hdNames [ j ] ) ;
}
/ / 写入每一行数据 - - - 一条记录就是一行数据
@SuppressWarnings ( " unchecked " )
List < T > data = ( List < T > ) map . get ( " data " ) ;
String [ ] hds = ( String [ ] ) map . get ( " hds " ) ;
for ( int j = 0 ; j < data . size ( ) ; j + + ) {
for ( int k = 0 ; k < hds . length ; k + + ) {
Object o = getFieldValue ( data . get ( j ) , hds [ k ] ) ; / / 得到列的值
data2Excel ( sheet , o , j + 1 , k ) ; / / 将值写入Excel
}
}
}
return downloadExcel ( wb , xlsName , request , response ) ;
}
/ * *
* 参数说明 ：
* list ： list数据集合
* hdNames ： 表头需要显示的名称
* hds ： 表头对应的对象属性名称 ， 和 hdNames一一对应
* xlsName ： 导出Excel的预定义名称
* request : HttpServletRequest
* response ： HttpServletResponse
* 通过数据构建Excel
* @author LiangXianYou
* @throws Exception
* @date 2015 - 3 - 13 上午11 : 00 : 30
* /
public static < T > boolean outPutExcel ( List < T > list , String [ ] hdNames , String [ ] hds , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws Exception {
Workbook wb = new HSSFWorkbook ( ) ; / / 创建工作薄
Sheet sheet = wb . createSheet ( ) ; / / 创建工作表
sheet . autoSizeColumn ( ( short ) 0 ) ; / / 自适应宽度
/ / 写入表头 - - - Excel的第一行数据
Row nRow = sheet . createRow ( 0 ) ; / / 创建行
for ( int i = 0 ; i < hdNames . length ; i + + ) {
Cell nCell = nRow . createCell ( i ) ; / / 创建单元格
nCell . setCellValue ( hdNames [ i ] ) ;
}
/ / 写入每一行数据 - - - 一条记录就是一行数据
for ( int i = 0 ; i < list . size ( ) ; i + + ) {
for ( int j = 0 ; j < hds . length ; j + + ) {
Object o = getFieldValue ( list . get ( i ) , hds [ j ] ) ; / / 得到列的值
data2Excel ( sheet , o , i + 1 , j ) ; / / 将值写入Excel
}
}
return downloadExcel ( wb , xlsName , request , response ) ;
}
/ * *
* 传递一个Wookbook ， 给定文件名 ， 以及request和response下载Excel文档
* @author LiangXianYou
* @throws IOException
* @date 2015 - 3 - 13 上午9 : 00 : 36
* /
@SuppressWarnings ( " all " )
private static boolean downloadExcel ( Workbook wb , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws IOException {
if ( request . getHeader ( " user-agent " ) . indexOf ( " MSIE " ) ! = - 1 ) {
xlsName = java . net . URLEncoder . encode ( xlsName , " utf-8 " ) + " .xls " ;
} else {
xlsName = new String ( xlsName . getBytes ( " utf-8 " ) , " iso-8859-1 " ) + " .xls " ;
}
OutputStream os = response . getOutputStream ( ) ;
response . setContentType ( " application/vnd.ms-excel " ) ;
response . setHeader ( " Content-disposition " , " attachment;filename= " + xlsName ) ;
wb . write ( os ) ;
return true ;
}
/ * *
* 通过泛型实例对象得到某一字段值
* @author LiangXianYou
* @date 2015 - 3 - 13 上午10 : 53 : 32
* /
private static < T > Object getFieldValue ( T t , String fieldName ) throws Exception {
if ( t = = null ) {
return null ;
}
Field field = t . getClass ( ) . getDeclaredField ( fieldName ) ;
field . setAccessible ( true ) ; / / 暴力反射
Object o = field . get ( t ) ; / / 得到字段数据的值
return o ;
}
/ * *
* 将数据写到Excel中
* @author LiangXianYou
* @date 2015 - 3 - 13 上午10 : 37 : 55
* /
private static void data2Excel ( Sheet sheet , Object o , Integer r , Integer c ) {
/ / 通过获得sheet中的某一列 ， 有得到 ， 没有创建
Row nRow = sheet . getRow ( r ) ;
if ( nRow = = null ) {
nRow = sheet . createRow ( r ) ;
}
/ / nRow . setColumnWidth ( r , arg1 ) ;
Cell nCell = nRow . createCell ( c ) ;
/ / 根据不同类型进行转化 ， 如有其它类型没有考虑周全的 ， 使用发现的时候添加
char type = 'x' ;
if ( o instanceof Integer ) {
type = 1 ;
} else if ( o instanceof Double ) {
type = 2 ;
} else if ( o instanceof Float ) {
type = 3 ;
} else if ( o instanceof String ) {
type = 4 ;
} else if ( o instanceof Date ) {
type = 5 ;
} else if ( o instanceof Calendar ) {
type = 6 ;
} else if ( o instanceof Boolean ) {
type = 7 ;
} else if ( o = = null ) {
type = 8 ;
}
switch ( type ) {
case 1 : nCell . setCellValue ( ( Integer ) o ) ; break ;
case 2 : nCell . setCellValue ( ( Double ) o ) ; break ;
case 3 : nCell . setCellValue ( ( Float ) o ) ; break ;
case 4 : nCell . setCellValue ( ( String ) o ) ; break ;
case 5 : nCell . setCellValue ( new SimpleDateFormat ( " yyyy-MM-dd HH:mm:ss " ) . format ( o ) ) ; break ;
case 6 : nCell . setCellValue ( ( Calendar ) o ) ; break ;
case 7 : nCell . setCellValue ( ( Boolean ) o ) ; break ;
case 8 : nCell . setCellValue ( " " ) ; break ;
default : nCell . setCellValue ( o + " " ) ; break ;
}
}
}
package excel.poi ;
import org.apache.poi.hssf.usermodel.HSSFCell ;
import org.apache.poi.hssf.usermodel.HSSFRow ;
import org.apache.poi.hssf.usermodel.HSSFSheet ;
import org.apache.poi.hssf.usermodel.HSSFWorkbook ;
import org.apache.poi.poifs.filesystem.OfficeXmlFileException ;
import org.apache.poi.ss.usermodel.Cell ;
import org.apache.poi.ss.usermodel.Row ;
import org.apache.poi.ss.usermodel.Sheet ;
import org.apache.poi.ss.usermodel.Workbook ;
import org.apache.poi.xssf.usermodel.XSSFCell ;
import org.apache.poi.xssf.usermodel.XSSFRow ;
import org.apache.poi.xssf.usermodel.XSSFSheet ;
import org.apache.poi.xssf.usermodel.XSSFWorkbook ;
import javax.servlet.http.HttpServletRequest ;
import javax.servlet.http.HttpServletResponse ;
import java.io.* ;
import java.lang.reflect.Field ;
import java.text.SimpleDateFormat ;
import java.util.* ;
/ * *
* 使用poi报表导出工具类
* 把poi的一个调用接口抽出来 ， 便于导出功能的管理
* @author LiangXianYou lxy208 @126.com
* @param
*
* /
public class ExcelKit {
/ * *
* < b > 导出list中map做载体的数据到excel < / b > < br >
* 参数说明 ： < br >
* list : 存放了Map数据的集合 < br >
* hdNames : 表头列名 < br >
* hds : 对应表头的数据KEY < br >
* xlsName : 导出文件名 < br >
* @author LiangXianYou
* @date 2015 - 6 - 25 上午10 : 22 : 51
* /
public static < T > boolean exportByMap ( List < Map < String , Object > > list , String [ ] hdNames , String [ ] hds , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws Exception {
Workbook wb = new XSSFWorkbook ( ) ; / / 创建工作薄
Sheet sheet = wb . createSheet ( ) ; / / 创建工作表
sheet . autoSizeColumn ( ( short ) 0 ) ; / / 自适应宽度
/ / 写入表头 - - - Excel的第一行数据
Row nRow = sheet . createRow ( 0 ) ; / / 创建行
for ( int i = 0 ; i < hdNames . length ; i + + ) {
Cell nCell = nRow . createCell ( i ) ; / / 创建单元格
nCell . setCellValue ( hdNames [ i ] ) ;
}
/ / 写入每一行数据 - - - 一条记录就是一行数据
for ( int i = 0 ; i < list . size ( ) ; i + + ) {
for ( int j = 0 ; j < hds . length ; j + + ) {
Object o = list . get ( i ) . get ( hds [ j ] ) ; / / 得到列的值
data2Excel ( sheet , o , i + 1 , j ) ; / / 将值写入Excel
}
}
return downloadExcel ( wb , xlsName , request , response ) ;
}
/ * *
* Excels导出多个sheet
* @author LiangXianYou
* @date 2015 - 6 - 16 下午5 : 56 : 56
* /
/ / map : data , sheetName , hds , hdNames , xlsName ; request , response
public static < T > boolean exportExcels ( List < Map < String , Object > > list , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws Exception {
Workbook wb = new XSSFWorkbook ( ) ; / / 创建工作薄
for ( int i = 0 ; i < list . size ( ) ; i + + ) {
Map < String , Object > map = list . get ( i ) ;
Sheet sheet = wb . createSheet ( ) ; / / 创建工作表
String sheetName = ( String ) map . get ( " sheetName " ) ;
wb . setSheetName ( i , sheetName ) ;
/ / 写入表头 - - - Excel的第一行数据
Row nRow = sheet . createRow ( 0 ) ; / / 创建行
String [ ] hdNames = ( String [ ] ) map . get ( " hdNames " ) ;
for ( int j = 0 ; j < hdNames . length ; j + + ) {
Cell nCell = nRow . createCell ( j ) ; / / 创建单元格
nCell . setCellValue ( hdNames [ j ] ) ;
}
/ / 写入每一行数据 - - - 一条记录就是一行数据
@SuppressWarnings ( " unchecked " )
List < T > data = ( List < T > ) map . get ( " data " ) ;
String [ ] hds = ( String [ ] ) map . get ( " hds " ) ;
for ( int j = 0 ; j < data . size ( ) ; j + + ) {
for ( int k = 0 ; k < hds . length ; k + + ) {
Object o = getFieldValue ( data . get ( j ) , hds [ k ] ) ; / / 得到列的值
data2Excel ( sheet , o , j + 1 , k ) ; / / 将值写入Excel
}
}
}
return downloadExcel ( wb , xlsName , request , response ) ;
}
/ * *
* 参数说明 ：
* list ： list数据集合
* hdNames ： 表头需要显示的名称
* hds ： 表头对应的对象属性名称 ， 和 hdNames一一对应
* xlsName ： 导出Excel的预定义名称
* request : HttpServletRequest
* response ： HttpServletResponse
* 通过数据构建Excel
* @author LiangXianYou
* @throws Exception
* @date 2015 - 3 - 13 上午11 : 00 : 30
* /
public static < T > boolean exportExcel ( List < T > list , String [ ] hdNames , String [ ] hds , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws Exception {
Workbook wb = new XSSFWorkbook ( ) ; / / 创建工作薄
Sheet sheet = wb . createSheet ( ) ; / / 创建工作表
sheet . autoSizeColumn ( ( short ) 0 ) ; / / 自适应宽度
/ / 写入表头 - - - Excel的第一行数据
Row nRow = sheet . createRow ( 0 ) ; / / 创建行
for ( int i = 0 ; i < hdNames . length ; i + + ) {
Cell nCell = nRow . createCell ( i ) ; / / 创建单元格
nCell . setCellValue ( hdNames [ i ] ) ;
}
/ / 写入每一行数据 - - - 一条记录就是一行数据
for ( int i = 0 ; i < list . size ( ) ; i + + ) {
for ( int j = 0 ; j < hds . length ; j + + ) {
Object o = getFieldValue ( list . get ( i ) , hds [ j ] ) ; / / 得到列的值
data2Excel ( sheet , o , i + 1 , j ) ; / / 将值写入Excel
}
}
return downloadExcel ( wb , xlsName , request , response ) ;
}
/ * *
* 传递一个Wookbook ， 给定文件名 ， 以及request和response下载Excel文档
* @author LiangXianYou
* @throws IOException
* @date 2015 - 3 - 13 上午9 : 00 : 36
* /
@SuppressWarnings ( " all " )
private static boolean downloadExcel ( Workbook wb , String xlsName , HttpServletRequest request , HttpServletResponse response ) throws IOException {
if ( request . getHeader ( " user-agent " ) . indexOf ( " MSIE " ) ! = - 1 ) {
xlsName = java . net . URLEncoder . encode ( xlsName , " utf-8 " ) + " .xls " ;
} else {
xlsName = new String ( xlsName . getBytes ( " utf-8 " ) , " iso-8859-1 " ) + " .xls " ;
}
OutputStream os = response . getOutputStream ( ) ;
response . setContentType ( " application/vnd.ms-excel " ) ;
response . setHeader ( " Content-disposition " , " attachment;filename= " + xlsName ) ;
wb . write ( os ) ;
return true ;
}
/ * *
* 通过泛型实例对象得到某一字段值
* @author LiangXianYou
* @date 2015 - 3 - 13 上午10 : 53 : 32
* /
private static < T > Object getFieldValue ( T t , String fieldName ) throws Exception {
if ( t = = null ) {
return null ;
}
Field field = t . getClass ( ) . getDeclaredField ( fieldName ) ;
field . setAccessible ( true ) ; / / 暴力反射
Object o = field . get ( t ) ; / / 得到字段数据的值
return o ;
}
/ * *
* 将数据写到Excel中
* @author LiangXianYou
* @date 2015 - 3 - 13 上午10 : 37 : 55
* /
private static void data2Excel ( Sheet sheet , Object o , Integer r , Integer c ) {
/ / 通过获得sheet中的某一列 ， 有得到 ， 没有创建
Row nRow = sheet . getRow ( r ) ;
if ( nRow = = null ) {
nRow = sheet . createRow ( r ) ;
}
/ / nRow . setColumnWidth ( r , arg1 ) ;
Cell nCell = nRow . createCell ( c ) ;
/ / 根据不同类型进行转化 ， 如有其它类型没有考虑周全的 ， 使用发现的时候添加
char type = 'x' ;
if ( o instanceof Integer ) {
type = 1 ;
} else if ( o instanceof Double ) {
type = 2 ;
} else if ( o instanceof Float ) {
type = 3 ;
} else if ( o instanceof String ) {
type = 4 ;
} else if ( o instanceof Date ) {
type = 5 ;
} else if ( o instanceof Calendar ) {
type = 6 ;
} else if ( o instanceof Boolean ) {
type = 7 ;
} else if ( o = = null ) {
type = 8 ;
}
switch ( type ) {
case 1 : nCell . setCellValue ( ( Integer ) o ) ; break ;
case 2 : nCell . setCellValue ( ( Double ) o ) ; break ;
case 3 : nCell . setCellValue ( ( Float ) o ) ; break ;
case 4 : nCell . setCellValue ( ( String ) o ) ; break ;
case 5 : nCell . setCellValue ( new SimpleDateFormat ( " yyyy-MM-dd HH:mm:ss " ) . format ( o ) ) ; break ;
case 6 : nCell . setCellValue ( ( Calendar ) o ) ; break ;
case 7 : nCell . setCellValue ( ( Boolean ) o ) ; break ;
case 8 : nCell . setCellValue ( " " ) ; break ;
default : nCell . setCellValue ( o + " " ) ; break ;
}
}
/ / 读取 excel
/ / 读取excel表头
public static Map readExcelHead ( File file , String [ ] fields ) throws IOException {
List < Map > list = null ;
try {
list = readExcel ( new FileInputStream ( file ) , fields , 0 ) ; / / 2007 -
} catch ( OfficeXmlFileException e ) {
list = readExcelPlus ( new FileInputStream ( file ) , fields , 0 ) ; / / 2007 +
}
return list . size ( ) > 0 ? list . get ( 0 ) : new HashMap ( ) ;
}
/ / 读取excel表头
public static Map readExcelHead ( String fPath , String [ ] fields ) throws IOException {
return readExcelHead ( new File ( fPath ) , fields ) ;
}
public static List < Map > readExcel ( File file , String [ ] fields ) throws IOException {
List < Map > list = null ;
try {
list = readExcel ( new FileInputStream ( file ) , fields , - 1 ) ; / / 2007 -
} catch ( OfficeXmlFileException e ) {
list = readExcelPlus ( new FileInputStream ( file ) , fields , - 1 ) ; / / 2007 +
}
/ / 去除表头
if ( list . size ( ) > 0 ) {
list . remove ( 0 ) ;
}
return list ;
}
public static List < Map > readExcel ( String fPath , String [ ] fields ) throws IOException {
return readExcel ( new File ( fPath ) , fields ) ;
}
/ * *
* excel读取2007 -
* @author Lxyer 2016 / 8 / 1 10 : 32 .
* /
private static List < Map > readExcel ( InputStream is , String [ ] fields , int lastRowNum ) throws IOException , OfficeXmlFileException {
List < Map > list = new ArrayList < > ( ) ;
HSSFWorkbook wk = new HSSFWorkbook ( is ) ;
HSSFSheet sheet = wk . getSheetAt ( 0 ) ;
if ( lastRowNum < 0 | | lastRowNum > sheet . getLastRowNum ( ) ) {
lastRowNum = sheet . getLastRowNum ( ) ;
}
int t = 0 ;
r : for ( int i = 0 ; i < = lastRowNum ; i + + ) {
HSSFRow row = sheet . getRow ( i ) ;
if ( row = = null ) continue ;
short cellNum = row . getLastCellNum ( ) ;
/ / 空跳过 / 连续三行为空结束
if ( isEmptyRow ( row , fields . length ) ) {
if ( t + + > 3 ) break ;
continue ;
}
Map map = new HashMap ( ) ;
for ( int j = 0 ; j < cellNum & & j < fields . length ; j + + ) {
HSSFCell cell = row . getCell ( j ) ;
if ( cell = = null ) {
map . put ( fields [ j ] , " " ) ;
continue ;
}
int cellType = cell . getCellType ( ) ;
if ( cellType = = 0 ) {
map . put ( fields [ j ] , ( long ) cell . getNumericCellValue ( ) + " " ) ;
} else {
map . put ( fields [ j ] , cell . getStringCellValue ( ) ) ;
}
}
list . add ( map ) ;
}
return list ;
}
/ * *
* excel读取 2007 +
* @author Lxyer 2016 / 8 / 1 10 : 32 .
* /
private static List < Map > readExcelPlus ( InputStream is , String [ ] fields , int lastRowNum ) throws IOException {
List < Map > list = new ArrayList < > ( ) ;
XSSFWorkbook wk = new XSSFWorkbook ( is ) ;
XSSFSheet sheet = wk . getSheetAt ( 0 ) ;
if ( lastRowNum < 0 | | lastRowNum > sheet . getLastRowNum ( ) ) {
lastRowNum = sheet . getLastRowNum ( ) ;
}
int t = 0 ;
r : for ( int i = 0 ; i < = lastRowNum ; i + + ) {
XSSFRow row = sheet . getRow ( i ) ;
if ( row = = null ) continue ;
short cellNum = row . getLastCellNum ( ) ;
if ( isEmptyRow ( row , fields . length ) ) {
if ( t + + > 3 ) break ;
continue ;
}
Map map = new HashMap ( ) ;
/ / 读取数据
for ( int j = 0 ; j < cellNum & & j < fields . length ; j + + ) {
XSSFCell cell = row . getCell ( j ) ;
if ( cell = = null ) {
map . put ( fields [ j ] , " " ) ;
continue ;
}
int cellType = cell . getCellType ( ) ;
if ( cellType = = 0 ) {
map . put ( fields [ j ] , ( long ) cell . getNumericCellValue ( ) + " " ) ;
} else {
map . put ( fields [ j ] , cell . getStringCellValue ( ) ) ;
}
}
list . add ( map ) ;
}
return list ;
}
/ / 空跳过 / 连续三行为空结束
private static boolean isEmptyRow ( XSSFRow row , int len ) {
for ( int i = 0 ; i < row . getLastCellNum ( ) & & i < len ; i + + ) {
XSSFCell cell = row . getCell ( i ) ; / / 列
if ( cell ! = null & & cell . getCellType ( ) ! = 0
& & cell . getStringCellValue ( ) ! = null
& & ! cell . getStringCellValue ( ) . isEmpty ( ) ) {
/ / System . out . println ( " ---F " ) ;
return false ;
}
}
/ / System . out . println ( " ---T " ) ;
return true ;
}
private static boolean isEmptyRow ( HSSFRow row , int len ) {
for ( int i = 0 ; i < row . getLastCellNum ( ) & & i < len ; i + + ) {
HSSFCell cell = row . getCell ( i ) ; / / 列
if ( cell ! = null & & cell . getCellType ( ) ! = 0
& & cell . getStringCellValue ( ) ! = null
& & ! cell . getStringCellValue ( ) . isEmpty ( ) ) {
/ / System . out . println ( " ---F " ) ;
return false ;
}
}
/ / System . out . println ( " ---T " ) ;
return true ;
}
}
