如何实现报表的批量打印需求

在 web 报表应用中,经常会遇到批量打印的需求,即点击一次打印按钮,实现多张报表的打印输出。润乾报表提供了两种不同的打印方式(applet 打印、PDF 打印)实现批量打印需求,同时也支持横纵报表打印。下面我们就来看一下每一种方式的具体实现方法。

一、applet 批量打印

1、环境配置要求

applet 打印要求客户端至少正确配置了 jre 环境

目前 applet 打印只支持 IE 内核浏览器

2、实现方法

可通过访问 jsp 拼接参数的方式实现,示例 URL 为:

不带参数:

http://localhost:6868/demo/reportJsp/directprint.jsp?report={t1.rpx}{t2.rpx}

带参数:

http://localhost:6868/demo/reportJsp/directprint.jsp?report={t1.rpx}{t2.rpx(arg1=1;arg2=2)}

参数拼接格式说明:

report={无参数报表名 1}{无参数报表名 2}{报表 1( 参数 1=value1; 参数 2=value2;…)}{报表 2( 参数 1=value1; 参数 2=value2;…)}…&prompt=yes&needSelectPrinter=yes

3、示例源码

directprint.jsp 页面完整代码:


<%@ page contentType="text/html;charset=UTF-8" %>

<%@ page import="com.raqsoft.report.view.*"%>

<html>

<body>

<%

//此JSP参数格式为:report={无参数报表名1}{无参数报表名2}{报表1(参数1=value1;参数2=value2;...)}{报表2(参数1=value1;参数2=value2;...)}...&prompt=yes&needSelectPrinter=yes

request.setCharacterEncoding( "UTF-8" );

  String report = request.getParameter( "report" );

  //"请输入报表文件名及参数串report={无参数报表名}{报表1(参数1=value1;参数2=value2;...)}{报表2(参数1=value1;参数2=value2;...)}..."

  if( report == null || report.trim().length() == 0 ) throw new

Exception( ServerMsg.getMessage(request,"jsp.dpArgError") );

String prompt = request.getParameter( "prompt" );

String needSelectPrinter = request.getParameter( "needSelectPrinter" );

String pages = request.getParameter( "pages" );

String copies = request.getParameter( "copies" );

if( pages == null ) pages = "";

if( copies == null ) copies = "1";

  String appmap = request.getContextPath();

  String serverPort = String.valueOf( request.getServerPort() );

String serverName = request.getServerName();

String appRoot = "http://" + serverName + ":" + serverPort + appmap;

String printLabel = ServerMsg.getMessage(request,"jsp.dpPrint");

%>

<object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"  codebase="<%=appRoot%>/jre-6u24-windows-i586.exe#Version=1,6,0,0"  width="80" height="32" id="report1_directPrintApplet" style="vertical-align:middle">

<param name="name" value="report1_directPrintApplet">

<param name="code" value="com.raqsoft.report.view.applet.DirectPrintWithoutShow.class">

<param name="archive" value="<%=appmap%>/raqsoftReportApplet.jar">

<param name="type" value="application/x-java-applet;version=1.6">

<param name="appRoot" value="<%=appRoot%>">

<param name="dataServlet" value="/reportServlet;jsessionid=<%=session.getId()%>?action=1">

<param name="fileName" value="<%=report%>">

<param name="srcType" value="file">

<param name="fontFace" value="dialog">

<param name="fontSize" value="10pt">

<param name="fontColor" value="#808040">

<param name="backColor" value="#126356">

<param name="label" value="<%=printLabel%>">

<param name="needPrintPrompt" value="<%=prompt%>">

<param name="needSelectPrinter" value="<%=needSelectPrinter%>">

<param name="needSetPageSize" value="no">

<param name="scriptable" value="true">

<param name="paramCharset" value="UTF-8">

<param name="blackWhitePrint" value="no">

<param name="mirrorPrint" value="no">

<param name="icon" value="/raqsoft/images/print.gif">

<param name="copies" value="<%=copies%>">

<param name="pages" value="<%=pages%>">

<comment>

<embed type="application/x-java-applet;version=1.6" width="80" height="32" id="report1_directPrintApplet"

code="com.raqsoft.report.view.applet.DirectPrintWithoutShow.class"

archive="<%=appmap%>/raqsoftReportApplet.jar"

type="application/x-java-applet;version=1.6"

appRoot="<%=appRoot%>"

dataServlet="/reportServlet;jsessionid=<%=session.getId()%>?action=1"

fileName="<%=report%>"

srcType="file"

fontFace="dialog"

fontSize="10pt"

fontColor="#808040"

backColor="#126356"

label="<%=printLabel%>"

needPrintPrompt="<%=prompt%>"

needSelectPrinter="<%=needSelectPrinter%>"

needSetPageSize="no"

scriptable="true"

paramCharset="UTF-8"

blackWhitePrint="no"

mirrorPrint="no"

copies="<%=copies%>"

pages="<%=pages%>"

icon="/raqsoft/images/print.gif">

</embed>

</comment>

</object>

<script language=javascript>

/*

function raqsoft_printOver() {

window.close();

}*/

</script>

</body>

</html>

二、PDF 批量打印

1、环境配置要求

浏览器安装了 PDF 插件。特殊地,IE 浏览器只识别 adobe reader 插件,不识别其他 PDF 插件

PDF 打印方式无浏览器限制,可兼容常用浏览器。

2、实现方法

可通过访问 jsp 拼接参数的方式实现,示例 URL 为:

不带参数:

http://localhost:6868/demo/reportJsp/pdfBatchPrint.jsp?report={t1.rpx}{t2.rpx}

带参数:

http://localhost:6868/demo/reportJsp/pdfBatchPrint.jsp?report={t1.rpx}{t2.rpx(arg1=1;arg2=2)}

参数拼接格式说明:

report={无参数报表名}{报表 1( 参数 1=value1; 参数 2=value2;…)}{报表 2( 参数 1=value1; 参数 2=value2;…)}

3、示例源码

pdfBatchPrint.jsp 页面完整代码:

<%@ page contentType="text/html;charset=UTF-8" %>

<%@ page import="java.net.*" %>

<%@ page import="com.raqsoft.report.view.*"%>

<html>

<title>PDF打印报表</title>

<head>

</head>

<body>

<%

//此JSP参数格式为:report={无参数报表名1}{无参数报表名2}{报表1(参数1=value1;参数2=value2;...)}{报表2(参数1=value1;参数2=value2;...)}

request.setCharacterEncoding( "UTF-8" );

  String report = request.getParameter( "report" );

  if( report == null || report.trim().length() == 0 ) throw new Exception( "请输入报表文件名及参数串report={无参数报表名}{报表1(参数1=value1;参数2=value2;...)}{报表2(参数1=value1;参数2=value2;...)}..." );

  String src = request.getContextPath() +

ServletMappings.getMapping( "com.raqsoft.report.view.ReportServlet" ) + "?action=45&report=" + URLEncoder.encode( report, "UTF-8" );

%>

<object classid="clsid:CA8A9780-280D-11CF-A24D-444553540000" id=pdfobj width="100%" height="100%" border="1">

<param name="_Version" value="65539">

<param name="_ExtentX" value="20108">

<param name="_ExtentY" value="10866">

<param name="_StockProps" value="0">

<param name="SRC" value="<%=src%>">

<comment>

<embed id=pdfobj1 type="application/pdf" src="<%=src%>" width="100%" height="95%"></embed>

</comment>

</object>

</body>

</html>

三、常见问题

imagepng

此问题需要将 URL 中的特殊字符进行转义处理,在 Tomcat7 以上版本以及 IE 浏览器中测试时易出现。例如:

{ 转义后是:%7B    

} 转义后是:%7D

也就是我们在测试时,需要把如下 URL 换成转义后的 URL:

原始 URL:

http://localhost:6868/demo/reportJsp/pdfBatchPrint.jsp?report={t1.rpx}{t2.rpx}

转义后可正常访问的 URL:

http://localhost:6868/demo/reportJsp/pdfBatchPrint.jsp?report=%7Bt1.rpx%7D%7Bt2.rpx%7D

更多打印类问题请查看:打印问题分类导航