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使用flying-saucer,利用HTML来生成PDF文件（裴东辉）
1、导入maven依赖
<flyingSaucer.version>9.1.0</flyingSaucer.version>
<!-- flying-saucer -->
<dependency>
<groupId>org.xhtmlrenderer</groupId>
<artifactId>flying-saucer-pdf</artifactId>
<version>${flyingSaucer.version}</version>
</dependency>
<dependency>
<groupId>org.xhtmlrenderer</groupId>
<artifactId>flying-saucer-core</artifactId>
<version>${flyingSaucer.version}</version>
</dependency>
2、利用Html来导出简单的PDF文件
@RequestMapping("/pdfLoad")
public void pdfLoad(@RequestParam("pdfHtmlData")String pdfHtmlData,@RequestParam("fileName")String fileName,@RequestParam("borswerInfo")String borswerInfo,
HttpServletRequest request,HttpServletResponse response){
log.info("pdfHtmlData:"+pdfHtmlData+";fileName:"+fileName+";borswerInfo:"+borswerInfo);
InputStream in=null;
OutputStream out=null;
try {
String tempPdfFile=FileUploadRestController.class.getResource("/").getPath();
tempPdfFile=tempPdfFile+"/public/upload/"+System.currentTimeMillis()+".pdf";
File dest=new File(tempPdfFile);
//检测是否存在目录
if(!dest.getParentFile().exists()){
dest.getParentFile().mkdirs();
}
FileOutputStream tempout=new FileOutputStream(tempPdfFile);
//构建一个html页面（前台通过js来控制传递）
//根据Html页面来构建一个Document
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = builder.parse(new ByteArrayInputStream(pdfHtmlData.getBytes("UTF-8")));
//根据Document来填充iTextRenderer
ITextRenderer iTextRenderer=new ITextRenderer();
iTextRenderer.setDocument(doc, null);
ITextFontResolver fontResolver = iTextRenderer.getFontResolver();
String pdfFontPath=FileUploadRestController.class.getResource("/plugins/pdf-font/simsun.ttf").getPath();//request.getSession().getServletContext().getRealPath("upload/pdf/font");
fontResolver.addFont(pdfFontPath,BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
iTextRenderer.layout();
//利用iTextRenderer生成pdf文件
iTextRenderer.createPDF(tempout);
tempout.flush();
tempout.close();
//文件下载
File downloadFile = new File(tempPdfFile);
//文件名
JSONObject borswerInfoObj=JSONObject.parseObject(borswerInfo);
if (null!=borswerInfoObj&&"ie".equals(borswerInfoObj.get("browser"))) {
fileName=java.net.URLEncoder.encode(fileName, "UTF-8");
fileName=fileName.replace("+", "%20"); //IE下文件名称带空格会转换为加号
response.setHeader("charset", "charset=UTF-8");
} else {
fileName=new String(fileName.getBytes(),Charset.forName("ISO8859-1"));
response.setHeader("charset", "charset=ISO8859-1");
}
//输出设置
response.setHeader("content-type", "application/octet-stream");
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition","attachment;filename="+fileName);
response.setContentLengthLong(downloadFile.length());
in=new FileInputStream(downloadFile);
out=response.getOutputStream();
IOUtils.copy(in,out);
response.flushBuffer();
}catch (Exception e) {
e.printStackTrace();
}finally {
IOUtils.closeQuietly(in);
IOUtils.closeQuietly(out);
}
}
3、pdfHtmlData参数为
//导出PDF文件
$(‘body‘).delegate(".pdfLoad","click",function(){
WebIndex.queryParam.limit=10000;
Logger.info(WebIndex.queryParam);
$.ajax({type:‘post‘,url:webIface.rootUrl+‘/fileManager/list/‘,dataType: ‘json‘,data:WebIndex.queryParam}).done(function(data){
Logger.info(data);
if(data.code==1){
var ifile=$(‘body‘).find(‘#load-pdf‘);
var fileName="文件上传和下载列表.pdf";
//构造pdf打印html数据
var pdfHtmlData=http://www.mamicode.com/‘‘;"text/css">‘;
pdfHtmlData+=‘ body{font-family:SimSun;margin: 5px;font-size:12px;text-align:center;}‘;
pdfHtmlData+=‘ table{border:0;border-top:1px solid #000;border-left:1px solid #000;width:100%;line-height:20px}‘;
pdfHtmlData+=‘ table thead{background-color:#EEE}‘;
pdfHtmlData+=‘ table td{border:0;border-bottom:1px solid #000;border-right:1px solid #000;padding:5px;white-space:nowrap}‘;
pdfHtmlData+=‘ .title{padding-bottom:20px;font-size:16px;text-align:center;width:100%;line-height:20px;}‘;
pdfHtmlData+=‘ .fl{padding-left:20px;text-align:left;}‘;
pdfHtmlData+=‘ @page{size:297mm 210mm;}‘;
pdfHtmlData+=‘ </style>‘;
pdfHtmlData+=‘ </head>‘;
pdfHtmlData+=‘ <body>‘;
pdfHtmlData+=‘ <div class="title">文件上传和下载列表统计(第1页)</div>‘;
pdfHtmlData+=‘ <table cellpadding="0px" cellspacing="0px" >‘;
pdfHtmlData+=‘ <thead><td width="10%">标号</td><td width="40%">文件名</td><td width="15%">上传人</td><td width="20%">上传时间</td><td width="15%">下载次数</td></thead>‘;
$.each(data.list,function(num,detail){
if(num!=0&&num%20==0){
pdfHtmlData+=‘ </table>‘;
pdfHtmlData+=‘ <div style="height:1px;"></div>‘;
pdfHtmlData+=‘ <div class="title">文件上传和下载列表统计(第‘+(num/20+1)+‘页)</div>‘;
pdfHtmlData+=‘ <table cellpadding="0px" cellspacing="0px" >‘;
pdfHtmlData+=‘ <thead><td width="10%">标号</td><td width="40%">文件名</td><td width="15%">上传人</td><td width="20%">上传时间</td><td width="15%">下载次数</td></thead>‘;
}
pdfHtmlData+=‘<tr><td>‘+(num+1)+‘</td><td class="fl">‘+detail.fileName+‘</td><td>‘+detail.uploader+‘</td><td>‘+detail.loadDate+‘</td><td>‘+detail.downLoadCount+‘</td></tr>‘;
});
pdfHtmlData+=‘ </table>‘;
pdfHtmlData+=‘ </body>‘;
pdfHtmlData+=‘</html>‘;
var borswerInfo=JSON.stringify(getBrowserInfo());
var time=Date.parse(new Date())/1000;
if(ifile.length==0){
var loadhtml=‘‘;
loadhtml+=‘<form method="post" id="load-pdf" action="‘+webIface.rootUrl+‘/fileUpload/pdfLoad/" style="display:none">‘;
loadhtml+=‘ <input class="load-pdfHtmlData" name="pdfHtmlData" >‘;
loadhtml+=‘ <input class="load-fileName" name="fileName" >‘;
loadhtml+=‘ <input class="load-borswerInfo" name="borswerInfo" >‘;
loadhtml+=‘ <input class="load-time" name="time" >‘;
loadhtml+=‘</form>‘;
$(‘body‘).append(loadhtml);
ifile=$(‘body‘).find(‘#load-pdf‘);
}
ifile.find(‘.load-pdfHtmlData‘).attr("value",pdfHtmlData);
ifile.find(‘.load-fileName‘).attr("value",fileName);
ifile.find(‘.load-borswerInfo‘).attr("value",borswerInfo);
ifile.find(‘.load-time‘).attr("value",time);
ifile.submit();
}
}).fail(function(erorEvent){
alert(erorEvent.statusText);
});
WebIndex.queryParam.limit=8;
});
4、预览pdf效果。
使用flying-saucer,利用HTML来生成PDF文件（裴东辉）
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