java PDF导出

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Document;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;








  <!-- 指标查询的tab页内容 start-->
  <div class="tab_contents">
  <!-- 搜索条件面板 -->
  <div class="search_box_panel">
  <table class="search-box-table">
  <tr>
  <th width='40px'></th>
  <th>年份：</th>
  <th>
  <select id="beginYear" name="" class="ui-text">
  </select>
  </th>
  <th>至</th>
  <th>
  <select id="endYear" name="" class="ui-text">
  </select>
  </th>
  <th width='55%'></th>
  <th><button id="search_for_index_btn" class="ui-btn ui-btn-primary">查询</button></th>
  <th><button class="ui-btn ui-btn-primary" onclick="expPdf();">导出PDF</button></th>
  <th><button class="ui-btn ui-btn-primary" onclick="expExl();">导出Excel</button></th>
  </tr>
  </table>
  </div>
  <!-- 搜索结果面板 -->
  <div id="search_result_panel" class="search_result_panel">
 
  <table id="index_query_table">
  <thead>
  <tr>
  <th rowspan="2">序号</th> 
  <th rowspan="2">年份</th>
  <th colspan="4">节电量(万kWh)</th>
  <th colspan="4">节电力(万kW)</th>
  <th rowspan="2">状态</th>
  </tr>
  <tr>
  <th>预指标值</th>
  <th>确认值</th>
  <th>承担值</th>
  <th>指标值</th>
  <th>预指标值</th>
  <th>确认值</th>
  <th>承担值</th>
  <th>指标值</th>
  </tr>
  </thead>
  <tbody>
 
  </tbody>
  </table>
  </div>
 
  </div>
  <!-- 指标查询的tab页内容 end-->








function expPdf(){
var rs={"data":[]};
$("#index_query_table tr").each(function(index){
var temp=[];
$(this).children("td").each(function(i){
temp.push($(this).text());
});
if(temp.length!=0)
rs.data.push(temp);
});
window.location.href="common/ExpExlController/expPdf?rs="+JSON.stringify(rs)+"&&fileName=dutyAnalyze.pdf";
}






@SuppressWarnings("unchecked")
@RequestMapping(value = "/expPdf")
@ResponseBody
public void expPdf(HttpServletRequest request,
HttpServletResponse response) {

LOGGER.info("here expPdf.");
try {
JSONObject json = JSONObject.parseObject(request.getParameter("rs"));
List<List<Object>> data = (List<List<Object>>) json.get("data");
commonService.expPdf(request,response,data);
} catch (Throwable ex) {
MyHttpServletUtil.sendErrorBadRequest(response);
}

}










@Override
public void expPdf(HttpServletRequest request,
HttpServletResponse response, List<List<Object>> data) {
ByteArrayOutputStream baos = null;
OutputStream out = null;
try {
Rectangle rect = new Rectangle(PageSize.A4);// 设置页面大小  
rect.setBackgroundColor(BaseColor.WHITE);// 页面背景色  
Document document = new Document(rect);
baos = new ByteArrayOutputStream();
PdfWriter.getInstance(document, baos);

  //设置字体  
        BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
        Font fontChinese = new Font(bfChinese, 8, Font.NORMAL);// 创建字体，设置family，size，style,还可以设置color 
        Font titleChinese = new Font(bfChinese, 16, Font.BOLD);  
        Font subBoldFontChinese = new Font(bfChinese, 8, Font.BOLD);   
BaseColor gray = new BaseColor(251, 251, 251);
        
document.open();
Paragraph title = new Paragraph("江西省节约电力电量指标", titleChinese);// 设置标题  
        title.setAlignment(Element.ALIGN_CENTER);// 设置对齐方式  
        title.setLeading(20f);// 设置行间距  
        document.add(title);  

        float[] widths = {10f,10f,10f,10f,10f,10f,10f,10f,10f,10f,10f};// 设置表格的列宽和列数 默认是4列  
        PdfPTable table = new PdfPTable(widths);// 建立一个pdf表格  
        table.setSpacingBefore(10f); 
        table.setWidthPercentage(100);// 设置表格宽度为100%  
        
        PdfPCell cell = null;  
        cell = new PdfPCell(new Paragraph("序号",subBoldFontChinese));
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setRowspan(2);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("年份",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setRowspan(2);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("节电量(万kWh)",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setColspan(4);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("节电力(万kW)",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setColspan(4);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("状态",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setRowspan(2);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("预指标值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("确认值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("承担值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("指标值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("预指标值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("确认值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("承担值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
        
        cell = new PdfPCell(new Paragraph("指标值",subBoldFontChinese));//  
        cell.setBackgroundColor(gray);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(5f);
        table.addCell(cell);
for (List<Object> each : data) {
for (Object obj : each) {
cell = new PdfPCell(new Paragraph(obj.toString(),
fontChinese));
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
if(obj.toString().contains("没有数据")) {
cell.setColspan(11);
}
cell.setPadding(5f);
table.addCell(cell);
}
}
        document.add(table);

document.close();
String fileName = XssStringFilter.crlfFilter(request.getParameter("fileName"));
response.setHeader("Expires", "0");
response.setHeader("Content-Disposition",
"attachment; filename=\""+fileName+"\"");
response.setContentType("application/pdf;charset=utf-8");
response.setContentLength(baos.size());
out = response.getOutputStream();
baos.writeTo(out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (baos != null) {
try {
baos.close();
} catch (IOException e) {
}
}
if (out != null) {
try {
out.close();
} catch (IOException e) {
}
}
}
}