大家好,又见面了,我是全栈君。
近期因为工作上的须要,须要做一个简历产品的下载功能,而下载的形式要去为PDF,内容要求为整个简历的内容,并且格式上要求和简历的格式排版时一致的!前期调研、开发,最后測试上线。差点儿相同花了7天的时间。当然,期间主要完毕了主体功能。如今的话,该功能已经相当完好。
以下,我主要是总结下我在这个开发的过程中遇到的问题和总结的心得。希望能帮组有这方面须要的人。
原创文章,转载请注明出处:http://blog.csdn.net/jessonlv
前期调研
前期调研的时候,在网上看了非常多关于转pdf的相关文章和技术框架,具体的我不想在此一一赘述,整体给我的感觉就是,第一:国外的相关技术框架做的就是好,关于这方面的,基本都是国外的技术,最多也就是国内牛人改改源代码。来适应中文等相关的本土化须要。
第二:国内有关生产pdf的需求一般都非常easy。要么就是简单文本,复杂的最多也就是相关报表等,基本么有自己想要实现的那么复杂的内容、排版。
尤其是生成的内容要和也也面上的内容全然一致,样式排版全然一致!
需求和思路
详细需求就是:
思路
1、首先通过相关功能接口。取出这个简历的全部数据。
2、通过freemarker排版输出的html静态页面。
静态页面的样式决定了生成的pdf的样式。
3、读取html静态页面,转换成pdf。
4、将pdf输出在浏览器,实现下载功能。
开发过程
第一步:取出相关简历的全部数据
第二步:通过freemarker生成静态页面。
<#assign freemarkerTool= "com.shengao.mojianli.util.FreemarkerTool"?new()> <html> <head> <title>mojianli</title> <style> @font-face { font-family: 'Microsoft YaHei'; font-family: 'Arial'; } html, body, p { margin: 0; padding: 0; } span { line-height: 1px; } body { font-family: 'Microsoft YaHei'; font-size: 11px; color: #666666; } .wrapper { width: 900px; margin: 0 auto; } .block { margin-top: 20px;//+2 } .align-center { text-align: center; margin-left: 252px; width: 200px; } #name { font-size: 25px; margin-top: 0px; color: #333333; margin-bottom: 0; } #phone { font-size: 12px; margin-top: 12px; font-family: "Arial"; } #email { font-size: 11px; margin-top: 4px; font-family: "Arial"; } .timestamp { display: inline-block; width: 110px; } .title { font-size: 13px; } .simple-module { margin-bottom: 10px; font-size: 11px; } .simple-module-item{ font-size: 11px; margin-right: 16px; } .simple-item { font-size: 11px; margin-right: 16px; } .item_thing { font-size: 11px; margin-right: 6px; line-height: 18px; } .label { background: #666; border-radius: 1px; color: white; font-size: 7px; position: relative; top: -1px; line-height: 7px; } .product { margin-left: 150px; margin-bottom: 5px; margin-top: 4px; width:750px; } .capacity-block { margin-left: 22px; } .things { padding-left: 12px; margin-top: 5px; background: url(img/dot.png) left top no-repeat; } .tag { background: #333333; border-radius: 1px; color: white; font-size: 11px; padding: 0 1px 1px 1px; margin-right: 4px; border-radius: 1px; } .enterprise{ margin-bottom: 9px; } .enterprise .simple-item { margin-bottom: 5px; } .capacity-group { margin-top: 5px; width: 520px; } .paragraph { line-height: 16px; font-size: 11px; margin-bottom: 10px; width: 700px; } .h-seperator { border-color: #666; margin-top: 7px; height: 0; border-top: none; border-bottom: 1px solid; margin-bottom: 6px; } .company,.department,.title{ color: #333; } </style> </head> <body> <#escape x as x!""></#escape> <div class="wrapper"> <div class="block align-center" id="contact"> <p id="name">${name}</p> <p id="phone">${phone}</p> <p id="email">${email}</p> </div> <div class="block" id="education"> <span class="title">${exp}</span> <div class="h-seperator"></div> <#list education as education> <p class="simple-module"> <span class="timestamp simple-module-item">${education.start_date} ~ ${education.end_date}</span> <span class="simple-module-item"><#if education.university??>${education.university}</#if></span> <span class="simple-module-item"><#if education.colleges??>${education.colleges}</#if> · <#if education.major??>${education.major}</#if></span> <span class="simple-module-item"><#if education.degree?
?>${education.degree}</#if></span> <span class="simple-module-item"><#if education.explain??>${education.explain}</#if></span> </p> </#list> </div> <!--under--> <!--割一割--> <div class="block" id="experience"> <span class="title">${project}</span> <div class="h-seperator"></div> <!--项目模板代码開始--> <!--项目经历開始--> <#list experience as experiences> <div class="enterprise"> <span class="timestamp simple-item">${experiences.experience.start_date} ~ ${experiences.experience.end_date}</span> <span class="simple-item company">${experiences.experience.company}</span> <span class="simple-item department">${experiences.experience.department}</span> <span class="simple-item title">${experiences.experience.title}</span> <!--项目名称開始--> <#list experiences.projects as projects> <div class="product"> <span class="simple-item">${projects.project.name}</span> <span class="simple-item">${projects.project.phase}</span> <span class="simple-item">${projects.project.core_goal}</span> <!--标签、事情開始--> <#list projects.tags as tags> <div class="capacity-block"> <div class="capacity-group"> <!--标签開始--> <#list tags.tags as tag> <span class="tag">${tag.base_tag_name}</span> </#list> <!--标签结束--> <!--事情開始--> <#list tags.items as item> <div class="things"> <#list item.labels as label> <span class="label">${label.base_label_name}</span> <span class="item_thing">${label.content}</span> </#list> </div> </#list> <!--事情结束--> </div> </div> </#list> <!--标签、事情结束--> </div> </#list> <!--项目名称结束--> </div> </#list> <!--项目名称结束--> <!--项目模板代码结束--> </div> <!--割一割--> <div class="block" id="honor"> <span class="title">${awards}</span> <div class="h-seperator"></div> <#list awardses as awardses> <p class="simple-module"> <span class="simple-item timestamp">${awardses.start_date} ~ ${awardses.end_date}</span> <span class="simple-item"><#if awardses.name??>${awardses.name}</#if></span> <span class="simple-item"><#if awardses.level??>${awardses.level}</#if></span> <span class="simple-item"><#if awardses.rank??>${awardses.rank}</#if></span> <span class="simple-item"><#if awardses.number??
>${awardses.number}</#if></span> </p> </#list> </div> <div class="block" id="evaluation"> <span class="title">${evaluate}</span> <div class="h-seperator"></div> <#list evaluates as evaluates> <p class="paragraph">${freemarkerTool(evaluates.content)}</p> </#list> </div></div></body></html>
模板相关的数据填充,调用java方法的做法等。网上非常多,我也是现学现用的。
@RequestMapping(value = "/createPdf.s", method = {RequestMethod.POST,RequestMethod.GET}) public void getAllResumeInfoById(HttpServletRequest request, HttpServletResponse response, @RequestParam(value="id", required = true) Long id) { String perName = ""; String positionName = ""; long resumeId = id; //获取全部的数据 //个人基本信息 ResumeInfoBean resumeInfo = new ResumeInfoBean(); //教育经历 List<EducationBean> eduList = new ArrayList<EducationBean>(); //获奖经历 List<AwardsBean> awardsList = new ArrayList<AwardsBean>(); //个人评价 List<EvaluateBean> evaList = new ArrayList<EvaluateBean>(); //项目经历 List<PdfExperience> pdfExperience = new ArrayList<PdfExperience>(); try { Map<String, Object> map = resumeInfoService.getAllResumeInfoById(id); resumeInfo = (ResumeInfoBean)map.get("resumeInfo"); eduList = (List<EducationBean>)map.get("education"); awardsList = (List<AwardsBean>)map.get("awards"); evaList = (List<EvaluateBean>)map.get("evaluates"); pdfExperience = (List<PdfExperience>)map.get("experiences"); System.out.println("finish...pdfExperience.size=="+pdfExperience.size()); } catch (Exception e) { log.warn(e); JsonUtil.errorToClient(response, 400, e.getMessage()); return; } //project路径 String path = request.getSession().getServletContext().getRealPath("/"); try { Configuration cfg = new Configuration(); cfg.setDirectoryForTemplateLoading(new File(getPath(request,response))); cfg.setObjectWrapper(new DefaultObjectWrapper()); cfg.setDefaultEncoding("UTF-8"); //这个一定要设置。不然在生成的页面中会乱码 //设置对象包装器 cfg.setObjectWrapper(new DefaultObjectWrapper()); //设计异常处理器 cfg.setTemplateExceptionHandler(TemplateExceptionHandler.IGNORE_HANDLER); //准备魔简历数据 Map<String, Object> ResumeMap = new HashMap<String, Object>(); //头部信息bean对象 String name = resumeInfo.getName(); perName = name; positionName = resumeInfo.getBase_position_name(); String phone = resumeInfo.getMobile(); String email = resumeInfo.getEmail(); ResumeMap.put("name",name); ResumeMap.put("phone",phone); ResumeMap.put("email",email); //定义四个模块标题 ResumeMap.put("exp","教育经历"); ResumeMap.put("project","项目经历"); ResumeMap.put("awards","获奖经历"); ResumeMap.put("evaluate","个人评价"); //封装教育经历对象数据 ResumeMap.put("education", eduList); String streducationlist = JsonUtil.list2json(eduList); //封装项目经历数据 ResumeMap.put("experience", pdfExperience); String strEx= JsonUtil.list2json(pdfExperience); System.out.print(strEx); //封装获奖经历数据 ResumeMap.put("awardses",awardsList); String strawardsList = JsonUtil.list2json(awardsList); //封装个人评价数据 ResumeMap.put("evaluates",evaList); String strevaList = JsonUtil.list2json(evaList); //获取指定模板文件 Template template = cfg.getTemplate("mojianli.ftl"); //控制台打印 template.process(ResumeMap, new PrintWriter(System.out)); //定义输入文件。默认生成在project根文件夹 String s = getPath(request,response); path = s+id+"_mojianli.html"; Writer out = new OutputStreamWriter(new FileOutputStream(path),"UTF-8"); //最后開始生成 template.process(ResumeMap, out); System.out.println("create the html successful!!!"+"path="+request.getSession().getServletContext().getRealPath("/")); }catch (Exception e){ e.printStackTrace(); jsonObjOutPut.clear(); jsonObjOutPut = JsonUtil.createJsonObject(MSG.STATUS_RESPONSE_FAIL_201, MSG.MSG_RESPONSE_FAIL_201); stringOutPutData = JsonUtil.object2json(jsonObjOutPut); JsonUtil.jsonStringToClient(response,stringOutPutData); } boolean boo = false; try { boo = html2Pdf(request,response,perName,resumeId,positionName); }catch (Exception e){ e.printStackTrace(); jsonObjOutPut.clear(); jsonObjOutPut = JsonUtil.createJsonObject(MSG.STATUS_RESPONSE_FAIL_201, MSG.MSG_RESPONSE_FAIL_201); stringOutPutData = JsonUtil.object2json(jsonObjOutPut); JsonUtil.jsonStringToClient(response,stringOutPutData); } }
前半段关于数据的封装等的代码能够无论。填上自己的数据即可了。
//html转成pdf private boolean html2Pdf(HttpServletRequest request,HttpServletResponse response,String name,long id,String postionName) throws IOException, DocumentException, ParserConfigurationException { boolean bl = false; //project路径 /*String separator = File.separator; String root = request.getSession().getServletContext().getRealPath(""); String path = root+separator+"WEB-INF"+separator+"resources"+name+"_"+id+"_mojianli.html";*/ String path = getPath(request,response)+id+"_mojianli.html"; //获取已经生成的html页面的路径 //String path = "F:\\tomcat_myeclipse\\webapps\\mojianli\\WEB-INF\\resources\\mojianli.html"; //读取html FileInputStream fis =new FileInputStream(path); StringWriter writers = new StringWriter(); InputStreamReader isr = null; String string = null; //此处将io流转换成String try { isr = new InputStreamReader(fis,"utf-8");//包装基础输入流且指定编码方式 //将输入流写入输出流 char[] buffer = new char[2048]; int n = 0; while (-1 != (n = isr.read(buffer))) { writers.write(buffer, 0, n); } }catch (Exception e){ e.printStackTrace(); } finally { if (isr != null) try { isr.close(); } catch (IOException e) { e.printStackTrace(); jsonObjOutPut.clear(); jsonObjOutPut = JsonUtil.createJsonObject(MSG.STATUS_RESPONSE_FAIL_201, MSG.MSG_RESPONSE_FAIL_201); stringOutPutData = JsonUtil.object2json(jsonObjOutPut); JsonUtil.jsonStringToClient(response,stringOutPutData); } } if (writers!=null){ string = writers.toString(); } System.out.print(string); //利用renderer来准备数据 ITextRenderer renderer = new ITextRenderer(); ITextFontResolver fontResolver = renderer.getFontResolver(); //设置创建PDF的时候要用的字体,此字体必需要和简历模板的字体保持一致!!fontResolver.addFont(getPath(request, response)+"msyh.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); fontResolver.addFont(getPath(request, response)+"arial.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); //get font family name BaseFont font = null; BaseFont font2 = null; try { font = BaseFont.createFont(getPath(request, response)+"msyh.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); font2 = BaseFont.createFont(getPath(request, response)+"arial.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); } catch (DocumentException e) { e.printStackTrace(); jsonObjOutPut.clear(); jsonObjOutPut = JsonUtil.createJsonObject(MSG.STATUS_RESPONSE_FAIL_201, MSG.MSG_RESPONSE_FAIL_201); stringOutPutData = JsonUtil.object2json(jsonObjOutPut); JsonUtil.jsonStringToClient(response,stringOutPutData); } //fontFamilyName‘s value is the key for font-family String fontFamilyName = TrueTypeUtil.getFamilyName(font2); System.out.println("fontFamilyName222="+fontFamilyName); //设置pdf内容。!
renderer.setDocumentFromString(string); //设置图片的绝对路径 renderer.getSharedContext().setBaseURL("file:"+getPath(request,response)+"\\img"); System.out.println(getPath(request,response)+"img"); renderer.layout(); //create the pdf //String pdfPath = path+"WEB-INF\\resources\\"+name+"_mojianli.pdf"; String pdfPath = getPath(request, response)+id+"_mojianli.pdf"; FileOutputStream outputStream = new FileOutputStream(pdfPath);//文件输出根文件夹下 renderer.createPDF(outputStream); //Finishing up //renderer.finishPDF(); System.out.println("created the pdf !!"); //下载 try{ //downloadPdf(response,request,name,outputStream); downLoadPdf(request,response,name,id,postionName); }catch (Exception e ){ e.printStackTrace(); } bl = true; return bl; }
这里须要注意的两点是:1、设置中文字体,以及中文字体文件的引用2、引用图片的问题。 细致看代码凝视,上面都有。
public void downLoadPdf(HttpServletRequest request, HttpServletResponse response,String name,long id,String postionName) { try { String separator = File.separator; String root = request.getSession().getServletContext().getRealPath(""); String filePath = root+separator+"WEB-INF"+separator+"resources"; String headerName = new String(name.getBytes("utf-8"),"iso8859_1");//解决下载文件里文标题乱码问题 String postion = new String(postionName.getBytes("utf-8"),"iso8859_1"); response.setCharacterEncoding("UTF-8"); response.setContentType("application/pdf"); response.setHeader("Content-Disposition", "attachment; filename="+headerName+"-"+postion+".pdf"); OutputStream outputStream = response.getOutputStream(); InputStream inputStream = new FileInputStream(filePath + separator+id+"_mojianli.pdf"); byte[] buffer = new byte[1024]; int i = -1; while ((i = inputStream.read(buffer)) != -1) { outputStream.write(buffer, 0, i); } outputStream.flush(); //outputStream.close(); inputStream.close(); } catch (Exception e) { e.printStackTrace(); log.warn(e); JsonUtil.errorToClient(response, 400, e.getMessage()); return; } }
这里的注意点是:注意下载文件里文标题乱码问题
至此,以上整体的代码大概是这样。须要的人,能够多看看,假设有什么问题,欢迎随时私信、留言等交流。
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