润乾报表V4技术资料

在报表中设置的页眉页脚在页面中是看不到的,如下图:

页面中的效果:

在打印的时候,可以看到页眉页脚的效果:

那么,如果将页眉页脚导入到导出的excel中呢.我们可以通过API来进行设置:

<%@ page import=”com.runqian.report4.model.*”%>
<%@ page import=”com.runqian.report4.usermodel.*”%>
<%@ page import=”com.runqian.report4.view.excel.*” %>
<%@ page import=”com.runqian.report4.util.*” %>
<jsp:directive.page import=”org.apache.poi2.hssf.usermodel.HSSFWorkbook”/>
<jsp:directive.page import=”org.apache.poi2.hssf.usermodel.HSSFSheet”/>
<jsp:directive.page import=”org.apache.poi2.hssf.usermodel.HSSFHeader”/>
<jsp:directive.page import=”org.apache.poi2.hssf.usermodel.HSSFFooter”/>

<%
//设置所有report对象的值为GBK转码
request.setCharacterEncoding(“GBK”);

String reportFile = request.getParameter(“report”);
if( reportFile==null ){
reportFile = “report_4.raq”;


//第一步，读取报表模板
InputStream fis=application.getResourceAsStream(“/reportFiles/”+reportFile);
ReportDefine rd = (ReportDefine)ReportUtils.read( fis );

//第二步，设置报表授权文件，运算报表
Context context = new Context();
//计算前，设置参数与宏
ParamMetaData pmd = rd.getParamMetaData();
String paramOrMocrName = “”;
if(pmd != null){
for(int i = 0;i <pmd.getParamCount(); i ++){
paramOrMocrName = pmd.getParam(i).getParamName();
context.setParamValue(paramOrMocrName ,request.getParameter(paramOrMocrName));


MacroMetaData mmd = rd.getMacroMetaData();
if( mmd != null ){
for(int i = 0; i < mmd.getMacroCount(); i ++){
paramOrMocrName = mmd.getMacro(i).getMacroName();
context.setMacroValue(paramOrMocrName,request.getParameter(paramOrMocrName));

}

Engine enging = new Engine( rd, context);
IReport iReport = enging.calc();

//生成Excel文件,因为jsp里不能直接用response的out.print()方法，所以我们先在服务器上生成这个文件
String saveFile=request.getRealPath(“/reportFiles/”)+”/”+reportFile+”.xls”;

ExcelReport eReoprt = new ExcelReport();
eReoprt.export(iReport);

FileOutputStream fos = new FileOutputStream( saveFile );
eReoprt.saveTo(fos);
fos.close();

HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(saveFile));
wb.setSheetName(0,”表1″);
HSSFSheet s=wb.getSheetAt(0);
HSSFHeader hss = s.getHeader();
//hss.setCenter(“aaaa”);
StringBuffer stringBuffer = new StringBuffer();
StringBuffer sb = new StringBuffer();
int rowNum = iReport.getRowCount();
int colNum = iReport.getColCount();
sb.append(“行数：”+rowNum+”;列数：”+colNum);

//页眉页脚分3部分（左中右），
int centerStartCol = colNum/3+1; //中间部分开始列
int rightStartCol = colNum/3*2+colNum%3+1; //右边部分开始列
sb.append(“;中间开始部分：”+centerStartCol+”;右边开始部分：”+rightStartCol);
//页眉左边部分

for(int i=1,j=rowNum;i<=j;i++){
IRowCell iRowCell=iReport.getRowCell(i);
if( iRowCell.getRowType()==iRowCell.TYPE_PAGE_HEADER ){

if(iRowCell.getRowVisible()!=false ){
for(int m=1,n=centerStartCol;m<=n;m++){

INormalCell cell = iReport.getCell(i,(short)m);
sb.append(“;左边部分：”+cell.isMerged());

Object obj=cell.getValue();
if(obj!=null){
stringBuffer.append(obj.toString());
HSSFHeader hh=s.getHeader();
hh.setLeft(stringBuffer.toString());


stringBuffer.append(“\r”);




stringBuffer.delete(0,stringBuffer.length());
//页眉中间部分
System.out.println(sb.toString());

for(int i=1,j=rowNum;i<=j;i++){
IRowCell iRowCell=iReport.getRowCell(i);
if( iRowCell.getRowType()==iRowCell.TYPE_PAGE_HEADER ){
if(iRowCell.getRowVisible()!=false ){
for(int m=rightStartCol,n=rightStartCol;m<=n;m++){

INormalCell cell = iReport.getCell(i,(short)m);
sb.append(“;中间部分：”+cell.isMerged());

Object obj=cell.getValue();
if(obj!=null){
stringBuffer.append(obj.toString());
HSSFHeader hh=s.getHeader();
hh.setCenter(stringBuffer.toString());


stringBuffer.append(“\r”);




stringBuffer.delete(0,stringBuffer.length());
System.out.println(sb.toString());
//页眉右边部分

for(int i=1,j=rowNum;i<=j;i++){
IRowCell iRowCell=iReport.getRowCell(i);
if( iRowCell.getRowType()==iRowCell.TYPE_PAGE_HEADER ){
if(iRowCell.getRowVisible()!=false ){
for(int m=centerStartCol,n=colNum;m<=n;m++){
INormalCell cell = iReport.getCell(i,(short)m);
sb.append(“;右边部分：”+cell.isMerged());

Object obj=cell.getValue();
if(obj!=null){
stringBuffer.append(obj.toString());
HSSFHeader hh=s.getHeader();
hh.setCenter(stringBuffer.toString());


stringBuffer.append(“\r”);



for(int i=1,j=iReport.getColCount();i<=j;i++){
IColCell irc=iReport.getColCell((short)i);

if(irc.getBreakPage()){
s.setColumnBreak((short)(i-1));


//结束分页
//页眉开始

HSSFHeader hh=s.getHeader();
System.out.println(“日期&D:”+HSSFHeader.date());
System.out.println(“当前页&P:”+HSSFHeader.page());
System.out.println(“页数&N:”+HSSFHeader.numPages());
System.out.println(“时间&T:”+HSSFHeader.time());
System.out.println(“日期&D:”+HSSFHeader.date());

//页眉结束
//设置页脚
HSSFFooter footer = s.getFooter();
footer.setCenter( “第 ” + HSSFFooter.page() + ” 共 ” + HSSFFooter.numPages());
//页脚结束
//标题行

System.out.println(“=========”+stringBuffer);
System.out.println(“第一行第五列：”+iReport.getCell(1,(short)5).getValue().toString());
//转跳到我们刚才生成的文件
wb.write(new FileOutputStream(saveFile));
System.out.println(“Excel文件生成结束,文件保存在:”+saveFile);
response.sendRedirect(request.getContextPath()+”/reportFiles/”+reportFile+”.xls”);
for(int i=1;i<=iReport.getColCount();i++){
System.out.println(iReport.getCell(1,(short)i).getValue());

%>