jasperport+studio+vue+springboot 实现pdf预览
思路：使用studio生成模板，将模板导入java代码，读取模板并设值，返回二进制流或者地址给前端使用blob存储流，然后打开文件。
模板生成工具可以用ireport或者studio
主要的坑ireport只支持jdk1.7一下，建议使用studio,我使用的是ireport,高于jdk1.7的会出现一些题：比如工具闪退，工具无法加入驱动包，导致无法连接到数据库。
连接数据库方式：javabean，jdbc连接 这里介绍javabean的方式连接
详细资料请参考
https://blog.csdn.net/u013516966/article/details/43502593
studio使用方法同ireport相似
（一）用ireport5.6模板工具生成pdf报表模板，并保存得到.jasper与.jrxml两个文件
（二）将这两个文件拷贝到springboot项目的resources目录下
（三）maven依赖
net.sf.jasperreports
jasperreports
6.0.0
net.sf.jasperreports
jasperreports-fonts
6.0.0
com.itextpdf
itextpdf
5.5.0
com.itextpdf
itext-pdfa
5.5.0
com.itextpdf
itext-asian
5.2.0
org.codehaus.groovy
groovy-all
2.4.11
（四）创建JasperHelper工具类
package com.yccj.modules.query.common;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.base.JRBaseReport;
import net.sf.jasperreports.engine.export.*;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.j2ee.servlets.ImageServlet;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.lang.reflect.Field;
import java.net.URLEncoder;
import java.sql.Connection;
import java.util.Map;
@SuppressWarnings("deprecation")
public class JasperHelper
{
public static final String PRINT_TYPE = "print";
public static final String PDF_TYPE = "pdf";
public static final String EXCEL_TYPE = "excel";
public static final String HTML_TYPE = "html";
public static final String WORD_TYPE = "word";
public static void prepareReport(JasperReport jasperReport, String type)
{
/*
* 如果导出的是excel，则需要去掉周围的margin
*/
if ("excel".equals(type)) try
{
Field margin = JRBaseReport.class.getDeclaredField("leftMargin");
margin.setAccessible(true);
margin.setInt(jasperReport, 0);
margin = JRBaseReport.class.getDeclaredField("topMargin");
margin.setAccessible(true);
margin.setInt(jasperReport, 0);
margin = JRBaseReport.class.getDeclaredField("bottomMargin");
margin.setAccessible(true);
margin.setInt(jasperReport, 0);
Field pageHeight = JRBaseReport.class.getDeclaredField("pageHeight");
pageHeight.setAccessible(true);
pageHeight.setInt(jasperReport, 2147483647);
}
catch (Exception exception)
{
}
}
/**
* 导出excel
*/
public static void exportExcel(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws IOException, JRException
{
/*
* 设置头信息
*/
response.setContentType("application/vnd.ms-excel");
String defaultname = null;
if (defaultFilename.trim() != null && defaultFilename != null)
{
defaultname = defaultFilename + ".xls";
}
else
{
defaultname = "export.xls";
}
response.setHeader("Content-Disposition", "attachment; filename=\"" + URLEncoder.encode(defaultname, "UTF-8") + "\"");
ServletOutputStream ouputStream = response.getOutputStream();
JRXlsExporter exporter = new JRXlsExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream);
exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE); // 删除记录最下面的空行
exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE);// 删除多余的ColumnHeader
//
exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);// 显示边框
exporter.exportReport();
ouputStream.flush();
ouputStream.close();
}
public static enum DocType
{
PDF, HTML, XLS, XML, RTF
}
@SuppressWarnings("rawtypes")
public static JRAbstractExporter getJRExporter(DocType docType)
{
JRAbstractExporter exporter = null;
switch (docType)
{
case PDF:
exporter = new JRPdfExporter();
break;
case HTML:
exporter = new JRHtmlExporter();
break;
case XLS:
exporter = new JExcelApiExporter();
break;
case XML:
exporter = new JRXmlExporter();
break;
case RTF:
exporter = new JRRtfExporter();
break;
}
return exporter;
}
/**
* 导出pdf，注意此处中文问题，
*
* 这里应该详细说：主要在ireport里变下就行了。看图
*
* 1）在ireport的classpath中加入iTextAsian.jar 2）在ireport画jrxml时，看ireport最左边有个属性栏。
*
* 下边的设置就在点字段的属性后出现。 pdf font name ：STSong-Light ，pdf encoding ：UniGB-UCS2-H
*/
private static void exportPdf(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws IOException, JRException
{
response.setContentType("application/pdf");
String defaultname = null;
if (defaultFilename.trim() != null && defaultFilename != null)
{
defaultname = defaultFilename + ".pdf";
}
else
{
defaultname = "export.pdf";
}
String fileName = new String(defaultname.getBytes("GBK"), "ISO8859_1");
response.setHeader("Content-disposition", "attachment; filename=" + fileName);
ServletOutputStream ouputStream = response.getOutputStream();
JasperExportManager.exportReportToPdfStream(jasperPrint, ouputStream);
ouputStream.flush();
ouputStream.close();
}
/**
* 导出html
*/
private static void exportHtml(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws IOException, JRException
{
response.setContentType("text/html");
ServletOutputStream ouputStream = response.getOutputStream();
JRHtmlExporter exporter = new JRHtmlExporter();
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.CHARACTER_ENCODING, "UTF-8");
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream);
//设置图片文件存放路径，此路径为服务器上的绝对路径
String imageDIR = request.getSession().getServletContext().getRealPath("/");
exporter.setParameter(JRHtmlExporterParameter.IMAGES_DIR_NAME, imageDIR);
//设置图片请求URI
String imageURI = request.getContextPath() + "/";
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, imageURI);
//设置导出图片到图片存放路径
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.TRUE);
exporter.setParameter(JRHtmlExporterParameter.IS_OUTPUT_IMAGES_TO_DIR, Boolean.TRUE);
exporter.exportReport();
ouputStream.flush();
ouputStream.close();
}
/**
* 导出word
*/
@SuppressWarnings("rawtypes")
private static void exportWord(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws JRException, IOException
{
response.setContentType("application/msword;charset=utf-8");
String defaultname = null;
if (defaultFilename.trim() != null && defaultFilename != null)
{
defaultname = defaultFilename + ".doc";
}
else
{
defaultname = "export.doc";
}
String fileName = new String(defaultname.getBytes("GBK"), "utf-8");
response.setHeader("Content-disposition", "attachment; filename=" + fileName);
JRExporter exporter = new JRRtfExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, response.getOutputStream());
exporter.exportReport();
}
public static void export(String type, String defaultFilename, File is, HttpServletRequest request, HttpServletResponse response, Map parameters, Connection conn)
{
try
{
JasperReport jasperReport = (JasperReport) JRLoader.loadObject(is);
prepareReport(jasperReport, type);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, conn);
if (EXCEL_TYPE.equals(type))
{
exportExcel(jasperPrint, defaultFilename, request, response);
}
else if (PDF_TYPE.equals(type))
{
exportPdf(jasperPrint, defaultFilename, request, response);
}
else if (HTML_TYPE.equals(type))
{
exportHtml(jasperPrint, defaultFilename, request, response);
}
else if (WORD_TYPE.equals(type))
{
exportWord(jasperPrint, defaultFilename, request, response);
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void export(String type, String defaultFilename, File is, HttpServletRequest request, HttpServletResponse response, Map parameters, JRDataSource conn)
{
try
{
JasperReport jasperReport = (JasperReport) JRLoader.loadObject(is);
prepareReport(jasperReport, type);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, conn);
if (EXCEL_TYPE.equals(type))
{
exportExcel(jasperPrint, defaultFilename, request, response);
}
else if (PDF_TYPE.equals(type))
{
exportPdf(jasperPrint, defaultFilename, request, response);
}
else if (HTML_TYPE.equals(type))
{
exportHtml(jasperPrint, defaultFilename, request, response);
}
else if (WORD_TYPE.equals(type))
{
exportWord(jasperPrint, defaultFilename, request, response);
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void showHtml(String defaultFilename, String reportfile, HttpServletRequest request, HttpServletResponse response, Map parameters, JRDataSource conn) throws JRException, IOException
{
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
JRAbstractExporter exporter = getJRExporter(DocType.HTML);
JasperPrint jasperPrint = JasperFillManager.fillReport(reportfile, parameters, conn);
request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
PrintWriter out = response.getWriter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
//设置图片文件存放路径，此路径为服务器上的绝对路径
String imageDIR = request.getSession().getServletContext().getRealPath("/");
exporter.setParameter(JRHtmlExporterParameter.IMAGES_DIR_NAME, imageDIR);
//设置图片请求URI
String imageURI = request.getContextPath() + "/";
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, imageURI);
//设置导出图片到图片存放路径
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.TRUE);
exporter.setParameter(JRHtmlExporterParameter.IS_OUTPUT_IMAGES_TO_DIR, Boolean.TRUE);
exporter.exportReport();
out.flush();
}
public static void showHtml(String defaultFilename, String reportfile, HttpServletRequest request, HttpServletResponse response, Map parameters, Connection conn) throws JRException, IOException
{
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
JRAbstractExporter exporter = getJRExporter(DocType.HTML);
JasperPrint jasperPrint = JasperFillManager.fillReport(reportfile, parameters, conn);
request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
PrintWriter out = response.getWriter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
//设置图片文件存放路径，此路径为服务器上的绝对路径
String imageDIR = request.getSession().getServletContext().getRealPath("/");
exporter.setParameter(JRHtmlExporterParameter.IMAGES_DIR_NAME, imageDIR);
//设置图片请求URI
String imageURI = request.getContextPath() + "/";
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, imageURI);
//设置导出图片到图片存放路径
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.TRUE);
exporter.setParameter(JRHtmlExporterParameter.IS_OUTPUT_IMAGES_TO_DIR, Boolean.TRUE);
exporter.exportReport();
out.flush();
}
@SuppressWarnings({"rawtypes", "unchecked"})
public static void showPdf(String defaultFilename, String reportfile, HttpServletRequest request, HttpServletResponse response, Map parameters, JRDataSource conn) throws JRException, IOException
{
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
response.setContentType("application/pdf");
JRAbstractExporter exporter = getJRExporter(DocType.PDF);
JasperPrint jasperPrint = JasperFillManager.fillReport(reportfile, parameters, conn);
request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
OutputStream out = response.getOutputStream();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out);
exporter.exportReport();
out.flush();
}
@SuppressWarnings({"rawtypes", "unchecked"})
public static void showPdf(String defaultFilename, String reportfile, HttpServletRequest request, HttpServletResponse response, Map parameters, Connection conn) throws JRException, IOException
{
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
response.setContentType("application/pdf");
JRAbstractExporter exporter = getJRExporter(DocType.PDF);
JasperPrint jasperPrint = JasperFillManager.fillReport(reportfile, parameters, conn);
request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
OutputStream out = response.getOutputStream();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out);
exporter.exportReport();
out.flush();
}
}
六 controller层`
List listData = NdService.getBmAf10List(id);
JRDataSource jrDataSource = new JRBeanCollectionDataSource(listData);
//构建参数map
Map map=new HashMap();
map.put("query", "其他参数测试");
//子数据源测试
map.put("chart1", listData);
//指定模板文件
// ServletContext context = request.getSession().getServletContext();
File reportFile = null;
reportFile = new File("E:\\yccj-land-si\\back\\land-si-module-system\\src\\main\\resources\\jaspers\\NdTeplate.jasper");
//调用工具类
JasperHelper.showPdf(exportFilePath, reportFile.getPath(), request, response, map,jrDataSource);
前端：vue
下载pdf.js资源包导入到前端public下的static目录下
下载地址http://mozilla.github.io/pdf.js/getting_started/#download
下载后
前端vue部分代码
preview(params)
{
var data={
aaz042:params.aaz042
}
this.getpdf(this.url.preview,data).then((res)=>
{
var binaryData = [];
binaryData.push(res);
let url=window.URL.createObjectURL(new Blob(binaryData, {type:"application/pdf"}));
window.open("/static/pdf/web/viewer.html?file="+encodeURIComponent(url));
});
},getpdf(url,data)
{
return axios({
url:url,
method:'get',
params:data,
responseType:'blob'
})
}