Spring不僅支持jsp,velocity,freemarker,同時可以將數據生成到Excel,PDF等非html文檔
首先，我們編寫控制器,返回邏輯名“
ListStudentUseExcel
”
package
?Action;
import
?javax.servlet.http.HttpServletRequest;
import
?javax.servlet.http.HttpServletResponse;
import
?org.springframework.validation.BindException;
import
?org.springframework.web.servlet.ModelAndView;
import
?org.springframework.web.servlet.mvc.AbstractCommandController;
public
?
class
?TestExcelController?
extends
?AbstractCommandController?
{
????
protected
?ModelAndView?handle(HttpServletRequest?arg0,?HttpServletResponse?arg1,?Object?arg2,?BindException?arg3)?
throws
?Exception?
{
????
????????
return
?
null
;
????}
????
protected
?ModelAndView?handleRequestInternal(HttpServletRequest?arg0,?HttpServletResponse?arg1)?
throws
?Exception?
{
????????
return
?
new
?ModelAndView(
"
ListStudentUseExcel
"
,
""
,
""
);
????}
}
?配置文件：
?
<?
xml?version="1.0"?encoding="UTF-8"
?>
<!
DOCTYPE?beans?PUBLIC?"-//SPRING//DTD?BEAN//EN"?"http://www.springframework.org/dtd/spring-beans.dtd"?
>
<
beans
>
<
bean?
id
="simpleUrlMapping"
?class
="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"
>
?
<
property?
name
="mappings"
>
???
<
props
>
???????
<
prop?
key
="/excel.mvc"
>
TestExcelController
</
prop
>
???
</
props
>
?
</
property
>
</
bean
>
<
bean?
id
="ListStudentUseExcel"
?class
="Action.ListStudentUseExcel"
></
bean
>
<
bean?
id
="beanNameViewResolver"
?class
="org.springframework.web.servlet.view.BeanNameViewResolver"
/>
?
<
bean?
id
="TestExcelController"
?class
="Action.TestExcelController"
/>
</
beans
>
?
由于上述配置文件采用了beanNameViewResolver的當時，所以，我們要編寫一個合controller返回邏輯名相同的
ViewClass---ListStudentUseExcel,代碼如下：
?
package
?Action;
import
?java.util.ArrayList;
import
?java.util.Iterator;
import
?java.util.Map;
import
?javax.servlet.http.HttpServletRequest;
import
?javax.servlet.http.HttpServletResponse;
import
?model.Student;
import
?org.apache.poi.hssf.usermodel.HSSFCellStyle;
import
?org.apache.poi.hssf.usermodel.HSSFDataFormat;
import
?org.apache.poi.hssf.usermodel.HSSFRow;
import
?org.apache.poi.hssf.usermodel.HSSFSheet;
import
?org.apache.poi.hssf.usermodel.HSSFWorkbook;
import
?org.springframework.web.servlet.view.document.AbstractExcelView;
public
?
class
?ListStudentUseExcel?
extends
?AbstractExcelView?
{
????
protected
??
void
?buildExcelDocument(Map?model,
????????????HSSFWorkbook?workbook,
????????????HttpServletRequest?request,
????????????HttpServletResponse?response)
throws
?Exception
{
????????
??????????
//
設置response方式,使執行此controller時候自動出現下載頁面,而非直接使用excel打開
??????????response.setContentType(
"
APPLICATION/OCTET-STREAM
"
);?
??????????response.setHeader(
"
Content-Disposition
"
,?
??????????
"
attachment;?filename="
"
?
+
?
"
excel.xls
"
?
+
?
"
"
"
);?
????????
//
構造數據
????????Student?stu1
=
new
?Student(
"
gaoxiang1
"
,
"
male1
"
,
"
20060101
"
,
1
);
????????Student?stu2
=
new
?Student(
"
gaoxiang2
"
,
"
male2
"
,
"
20060102
"
,
2
);
????????Student?stu3
=
new
?Student(
"
gaoxiang3
"
,
"
male3
"
,
"
20060103
"
,
3
);
????????Student?stu4
=
new
?Student(
"
gaoxiang4
"
,
"
male4
"
,
"
20060104
"
,
4
);
????????Student?stu5
=
new
?Student(
"
gaoxiang5
"
,
"
male5
"
,
"
20060105
"
,
5
);
????????ArrayList?stuList
=
new
?ArrayList();
????????stuList.add(stu1);
????????stuList.add(stu2);
????????stuList.add(stu3);
????????stuList.add(stu4);
????????stuList.add(stu5);
????????
????????
//
產生Excel表頭
????????HSSFSheet?sheet
=
workbook.createSheet(
"
studentList
"
);
????????HSSFRow?header
=
sheet.createRow(
0
);?
//
第0行
????????
//
產生標題列
????????header.createCell((
short
)
0
).setCellValue(
"
name
"
);
????????header.createCell((
short
)
1
).setCellValue(
"
sex
"
);
????????header.createCell((
short
)
2
).setCellValue(
"
date
"
);
????????header.createCell((
short
)
3
).setCellValue(
"
count
"
);
????????HSSFCellStyle?cellStyle
=
workbook.createCellStyle();
????????cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat(
"
mm/dd/yyyy
"
));
????????
????????
//
填充數據
????????
int
?rowNum
=
1
;
????????
for
?(Iterator?iter?
=
?stuList.iterator();?iter.hasNext();)?
{
????????????Student?element?
=
?(Student)?iter.next();
????????????HSSFRow?row
=
sheet.createRow(rowNum
++
);
????????????row.createCell((
short
)
0
).setCellValue(element.getName().toString());
????????????row.createCell((
short
)
1
).setCellValue(element.getSex().toString());
????????????row.createCell((
short
)
2
).setCellValue(element.getDate().toString());
????????????row.getCell((
short
)
2
).setCellStyle(cellStyle);
????????????row.createCell((
short
)
3
).setCellValue(element.getCount());
????????}
????????
????????
//
列總和計算
????????HSSFRow?row
=
sheet.createRow(rowNum);
????????row.createCell((
short
)
0
).setCellValue(
"
TOTAL:
"
);
????????String?formual
=
"
SUM(D2:D
"
+
rowNum
+
"
)
"
;?
//
D2到D[rowNum]單元格起(count數據)
????????row.createCell((
short
)
3
).setCellFormula(formual);
????????
????}
}
測試頁面：/exlce/ListStudentUseExcel.jsp
?
<%
@?page?language
=
"
java
"
?contentType
=
"
text/html;?charset=GB18030
"
????pageEncoding
=
"
GB18030
"
%>
<!
DOCTYPE?html?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN"?"http://www.w3.org/TR/html4/loose.dtd"
>
<
html
>
<
head
>
<
meta?
http-equiv
="Content-Type"
?content
="text/html;?charset=GB18030"
>
<
title
>
Insert?title?here
</
title
>
</
head
>
<
body
>
<
input?
type
="button"
?onclick
="javascript:window.location.href='<%=request.getContextPath()?%>/excel.mvc'"
?value
="download?excel"
></
input
>
</
body
>
</
html
>
?
運行ListStudentUseExcel.jsp，點擊下載按鈕，程序運行結果及生成的excel如下：
?
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