一般页面都是.jsp页面，所以要把.jsp转换成html，在生成pdf，在网上找了好多方法，只有用一个插件，wkhtmltopdf-0.8.3.exe，生成的pdf会相对的好看。
先附上我做的.jsp页面。
<%@ page language="java" contentType="text/html;charset=utf-8"%><%@ taglib uri="/jsp/jstl/core" prefix="c"%><!DOCTYPE html><html lang="en" id="htmlId"><head><meta charset="UTF-8" /><style>.box{/* width: 1000px;border:1px solid red; */text-align: center;}table{width: 100%;}table, th, td {border: 1px solid grey;border-collapse: collapse;font-size: 12px;}table th {height: 40px;line-height: 40px;background: #cdcdcd;text-align: center;}table td {height: 40px;line-height: 40px;color: black;text-align: center;}/*如果要隔行变色把下面解开换色就行*//* table tr:nth-child(odd) {background-color: white;}table tr:nth-child(even) {background-color:#99ccff;}*/.civilRecord{margin-top: 20px;}/*这是固定某一列表格的宽度*/.civilRecord .th1{width: 70px;}.civilRecord .th3{width: 190px;}.civilRecord .th4{width: 190px;}.civilRecord .th5{width: 190px;}.protectionin{margin-top: 20px;}.bj{margin-left: 5%;margin-right: 5%; }</style><script type="text/javascript" src="resource/jquery/jquery-1.9.1.min.js"></script><script type="text/javascript">function msg() {/* var url = 'assurehistory.do?reqCode=exportAssurehistoryPDF';//window.location.href = url; var html=$("#htmlId").html();//alert(html);//return;$.ajax({type: "post",url: url,data: {htmlContent:html},dataType: "json",success: function(data){//alert(data.msg);}}); */var form=$("<form>");//定义一个form表单form.attr("style","display:none");form.attr("target","");form.attr("method","post");form.attr("action","assurehistory.do?reqCode=exportAssurehistoryPDF");var input1=$("<input>");input1.attr("type","hidden");input1.attr("name","htmlContent");var html=$("#htmlId").html();// alert(html);input1.attr("value",html);$("#pdfBody").append(form);//将表单放置在web中form.append(input1);form.submit();//表单提交 }</script></head><body id="pdfBody"><div class="box" style="height:430px;overflow:auto"><div style="margin-left:80%;line-height: 28px;position: relative;"><input type="button" value="导出PDF" οnclick="msg()"/></div><!-- <h3>三 公共信息明细</h3> --><div class="taxesRecord bj"><p>个人担保基础信息</p><table ><thead><tr><th>信息记录类型</th><th>账户类型</th><th>账户标识码</th><th>信息报告日期</th></tr></thead><tbody><tr><c:forEach var="assureinfos" items="${assureinfos}"><td>${assureinfos.infotypetext}</td><td>${assureinfos.acctypetext}</td><td>${assureinfos.acccode}</td><td>${assureinfos.repdateStr}</td></c:forEach></tr></tbody></table><table><thead><tr><th>报告时点说明代码</th><th>债务人姓名</th><th>债务人证件类型</th><th>债务人证件号码</th><th>业务管理机构代码</th></tr></thead><tbody><tr><c:forEach var="assureinfos" items="${assureinfos}"><td>${assureinfos.repcodetext}</td><td>${assureinfos.debtorname}</td><td>${assureinfos.debtoridtypetext}</td><td>${assureinfos.debtoridnum}</td><td>${ancode}</td></c:forEach></tr></tbody></table></div><div class="civilRecord bj"><p>担保人基本信息</p><table><thead><tr><th class="th1">担保业务大类</th><th class="th1">担保业务种类细分</th><th class="th1">开户日期</th><th class="th1">信用额度</th><th class="th1">币种</th></tr></thead><tbody><tr><c:forEach var="assurebasicinfos" items="${assurebasicinfos}"><td>${assurebasicinfos.suretybusstext }</td><td>${assurebasicinfos.suretybussspeartext}</td><td>${assurebasicinfos.opendateStr }</td><td>${assurebasicinfos.creditlimit }</td><td>${assurebasicinfos.currencytypetext }</td></c:forEach></tr></tbody></table><table><thead><tr><th class="th1">到期日期</th><th class="th1">反担保方式</th><th class="th1">其他还款保证方式</th><th class="th1">保证金百分比</th><th class="th1">担保合同文本编号</th></tr></thead><tbody><tr><c:forEach var="assurebasicinfos" items="${assurebasicinfos}"><td>${assurebasicinfos.enddateStr }</td><td>${assurebasicinfos.assuremodetext }</td><td>${assurebasicinfos.otherasstext }</td><td>${assurebasicinfos.marginpercent }</td><td>${assurebasicinfos.assurenum }</td></c:forEach></tr></tbody></table></div><div class="civilRecord bj"><p>在保责任信息</p><table><thead><tr><th class="th1">账户状态</th><th class="th1">在保余额</th><th class="th1">余额变化日期</th><th class="th1">五级分类</th><th class="th1">五级分类认定日期</th></tr></thead><tbody><tr><c:forEach var="protectioninfos" items="${protectioninfos}"><td>${protectioninfos.accstatetext }</td><td>${protectioninfos.protectionbal }</td><td>${protectioninfos.balchangedateStr }</td><td>${protectioninfos.classifytext }</td><td>${protectioninfos.classifydateStr }</td></c:forEach></tr></tbody></table><table><thead><tr><th class="th1">风险敞口</th><th class="th1">代偿标志</th><th class="th1">账户关闭日期</th><th class="th1"></th><th class="th1"></th></tr></thead><tbody><tr><c:forEach var="protectioninfos" items="${protectioninfos}"><td>${protectioninfos.riskexposure }</td><td>${penflagtext }</td><td>${protectioninfos.accclosedateStr }</td><td></td><td></td></c:forEach></tr></tbody></table></div><div class="civilRecord bj"><p>相关还款人信息</p><table><thead><tr><th class="th1">责任人个数</th><th class="th1">身份类别</th><th class="th1">责任人名称</th><th class="th1">责任人身份标识类型</th><th class="th1">责任人身份标识号码</th></tr></thead><c:forEach var="rep" items="${repaymentinfos}"><tbody><tr><td>${rep.perliabnum}</td><td>${rep.classifytypetext}</td><td>${rep.perliabname}</td><td>${rep.perliabtypetext}</td><td>${rep.perliabid}</td></tr></tbody></c:forEach></table><table><thead><tr><th class="th1">还款责任人类型</th><th class="th1">还款责任金额</th><th class="th1"></th><th class="th1"></th><th class="th1"></th></tr></thead><c:forEach var="rep" items="${repaymentinfos}"><tbody><tr><td>${rep.reperliabtypetext}</td><td>${rep.reperliabamot}</td><td></td><td></td><td></td></tr></tbody></c:forEach></table></div><div class="civilRecord bj"><p>抵押物信息</p><table><thead><tr><th class="th1">抵质押合同个数</th><th class="th1">抵质押合同标识码</th><th class="th1"></th><th class="th1"></th><th class="th1"></th></tr></thead><c:forEach var="contractinfos" items="${contractinfos}"><tbody><tr><td>${contractinfos.contractnum }</td><td>${contractinfos.contractid }</td><td></td><td></td><td></td></tr></tbody></c:forEach></table></div></div></body></html>
我用el表达式动态得到数据库里面的数据，然后在导出方法中，定义了from表单，把整个jsp源码获取到。
页面的效果：
下面附上后台的方法：
import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import .URLDecoder; import .URLEncoder; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.check.test.HtmlToPdf; /*** 将html转成pdf* @param request* @param response* @return*/@RequestMapping(params = "reqCode=exportAssurehistoryPDF")public ModelAndView exportAssurehistoryPDF(HttpServletRequest request,HttpServletResponse response){try {request.setCharacterEncoding("UTF-8");} catch (UnsupportedEncodingException e2) {e2.printStackTrace();}String h = request.getParameter("htmlContent");System.out.println(h);String pPath=this.writeHtmlToFile(h, "assurehistory");HtmlToPdf.convert(pPath+"/assurehistory.html", pPath+"/assurehistory.pdf");try {//Thread.sleep(1000);response.setContentType("application/pdf");response.addHeader("content-disposition", "attachment;filename="+ URLEncoder.encode("个人担保信息查询统计.pdf", "UTF-8"));File file = new File(pPath+"/assurehistory.pdf");InputStream fis = new BufferedInputStream(new FileInputStream(file));byte[] buffer = new byte[fis.available()];fis.read(buffer);fis.close();OutputStream os = response.getOutputStream();os.write(buffer);os.flush();os.close();} catch (UnsupportedEncodingException e1) {e1.printStackTrace();}catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return null;}/*** 将内容写入html文件* @param content* @param htmlName* @return*/private String writeHtmlToFile(String content,String htmlName) {String path = "";try {path = URLDecoder.decode(AssurehistoryController.class.getClassLoader().getResource("pdfFile/").getFile(), "utf-8");} catch (UnsupportedEncodingException e) {e.printStackTrace();}System.out.println(path);content=content.replace("<div class=\"box\" style=\"height:430px;overflow:auto\">", "<div class=\"box\" style=\"overflow:auto\">");content=content.replace("button", "hidden").replace("HEIGHT: 430px", "");File file = new File(path + htmlName+".html");BufferedWriter bw = null;try {bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file),"utf-8")); bw.write("<!DOCTYPE html><html lang=\"en\">");bw.write(content);bw.write("</html>");bw.flush();} catch (IOException e) {e.printStackTrace();} finally {if (bw != null) {try {bw.close();} catch (IOException e) {e.printStackTrace();}}}return file.getParent();}import java.io.BufferedInputStream;
然后在定义一个HtmlToPdf类，你也可以把这个类的方法单独拿出来。
package com.check.test;import java.io.File;import java.io.UnsupportedEncodingException;import .URLDecoder;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Locale;import com.eloan.app.assurehistory.controller.AssurehistoryController;public class HtmlToPdf {/*** html转pdf* @param srcPath html路径，可以是硬盘上的路径，也可以是网络路径* @param destPath pdf保存路径* @return 转换成功返回true*/public static boolean convert(String srcPath, String destPath){//wkhtmltopdf在系统中的路径String str="";try {str = URLDecoder.decode(AssurehistoryController.class.getClassLoader().getResource("pdfFile/wkhtmltopdf-0.8.3.exe").getFile(), "utf-8");} catch (UnsupportedEncodingException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}String path = new File(str).getPath();File file = new File(destPath);File parent = file.getParentFile();//如果pdf保存路径不存在，则创建路径if(!parent.exists()){parent.mkdirs();}StringBuilder cmd = new StringBuilder();cmd.append(path);cmd.append(" ");cmd.append(srcPath);cmd.append(" ");cmd.append(destPath);boolean result = true;try{Process proc = Runtime.getRuntime().exec(cmd.toString());proc.waitFor();}catch(Exception e){result = false;e.printStackTrace();}return result;}}
最后，还有个重要的，就是wkhtmltopdf-0.8.3.exe，这个大家可以在网上免费下载，我把它放在我项目的src/main/java下面
最后，生成的pdf效果是：
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