iReport+jasperReport之JDBC数据源
iReport画出来的报表可以满足我们大部分的需要，所以采用iReport 编辑jrxml文件是我们的首选啦！当然掌握jrxml文件的结构也是必须的。
采用JDBC数据源必须有数据库支持啊！我们新建一个test表，其中有pid、name、sex、password、department、age字段，为了方便期间我们定义这些字段全部为String类型。
在iReport中新建一报表，报表有title、pageHeader、columnHeader、detail、columnFooter、pageFooter、lastPageFooter、summary等部分，被成为Report section
title：顾名思义是指报表的标题哦，它会显示在报表的最上面，如果有多页只会出现在第一页的最上面。pageHeader：每页的标题，如果有多页每页的开始都会显示此部分内容。
columnHeader：显示报表的列头不经常使用。
detail：这个就不用说了吧！
有header就会出现footer啦！lastPageFooter只会出现在最后一页。summay会出现在每一页数据上，主要是为了展示一些统计信息，比如当前的时间，页数信息啦！
新建一parameter
此参数可作为报表的标题使用，我们在程序中动态的传递给报表。
document structure－－－》parameter里找到reportTitle参数拖至title区域，右击编辑reportTitle域的属性，在font选项里找到Markup设置为HTML，TextField选项里设置Text Field Expreesion为
"
<
font
color
='blue'
size
='5'>"+$P{reportTitle}+"</font>"
下来就是设置报表的Field字段了，不需要我们一个个的新建那些字段啦！
选择Data--->Report Query在Report Query选项里选择Query Language为SQL，写入SqL语句
select
*
from
test
order
by
pid
DESC
这时所有的field会出现在下面(SQL是正确的)
关闭对话框在document structure－－－》field中就会出现我们需要的field，之后拖到相应的位置，关于怎么美化报表这个本人也不是很懂哦！
如果需要显示一下当前的页数信息也可以自己托动Variables里的PAGE_NUMBER完成页数的显示。完整的jrxml文件如下：
<?
xml version="1.0" encoding="UTF-8"
?>
<!-- Created with iReport - A designer for JasperReports -->
<! DOCTYPE jasperReport PUBLIC "//JasperReports//DTD Report Design//EN" "http://jasperreports.sourceforge.net/dtds/jasperreport.dtd" >
< jasperReport
name ="Person"
columnCount ="1"
printOrder ="Vertical"
orientation ="Portrait"
pageWidth ="595"
pageHeight ="842"
columnWidth ="535"
columnSpacing ="0"
leftMargin ="30"
rightMargin ="30"
topMargin ="20"
bottomMargin ="20"
whenNoDataType ="NoPages"
isTitleNewPage ="false"
isSummaryNewPage ="false" >
< property name ="ireport.scriptlethandling" value ="0" />
< property name ="ireport.encoding" value ="UTF-8" />
< import value ="java.util.*" />
< import value ="net.sf.jasperreports.engine.*" />
< import value ="net.sf.jasperreports.engine.data.*" />
< parameter name ="reportTitle" isForPrompting ="true" class ="java.lang.String" />
< queryString > <![CDATA[ select * from test order by pid DESC ]]> </ queryString >
< field name ="pid" class ="java.lang.String" />
< field name ="name" class ="java.lang.String" />
< field name ="sex" class ="java.lang.String" />
< field name ="password" class ="java.lang.String" />
< field name ="department" class ="java.lang.String" />
< field name ="age" class ="java.lang.String" />
< background >
< band height ="6" isSplitAllowed ="true" >
</ band >
</ background >
< title >
< band height ="29" isSplitAllowed ="true" >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="138"
y ="0"
width ="258"
height ="29"
key ="textField" />
< box ></ box >
< textElement textAlignment ="Center" verticalAlignment ="Middle" markup ="html" >
< font pdfFontName ="Helvetica-Bold" isBold ="true" />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ "<font color='blue' size='5'>"+$P{reportTitle}+"</font>" ]]> </ textFieldExpression >
</ textField >
</ band >
</ title >
< pageHeader >
< band height ="0" isSplitAllowed ="true" >
</ band >
</ pageHeader >
< columnHeader >
< band height ="0" isSplitAllowed ="true" >
</ band >
</ columnHeader >
< detail >
< band height ="22" isSplitAllowed ="true" >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="0"
y ="0"
width ="100"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{pid} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="100"
y ="0"
width ="93"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{name} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="193"
y ="0"
width ="58"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{sex} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="251"
y ="0"
width ="100"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{password} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="351"
y ="0"
width ="100"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{department} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" pattern ="" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="451"
y ="0"
width ="84"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{age} ]]> </ textFieldExpression >
</ textField >
< line direction ="TopDown" >
< reportElement
x ="0"
y ="17"
width ="535"
height ="1"
key ="line-1" />
< graphicElement stretchType ="NoStretch" />
</ line >
</ band >
</ detail >
< columnFooter >
< band height ="0" isSplitAllowed ="true" >
</ band >
</ columnFooter >
< pageFooter >
< band height ="24" isSplitAllowed ="true" >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="387"
y ="5"
width ="22"
height ="18"
key ="textField" />
< box ></ box >
< textElement textAlignment ="Center" verticalAlignment ="Middle" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.Integer" > <![CDATA[ $V{PAGE_NUMBER} ]]> </ textFieldExpression >
</ textField >
< staticText >
< reportElement
x ="373"
y ="5"
width ="14"
height<span style
<!-- Created with iReport - A designer for JasperReports -->
<! DOCTYPE jasperReport PUBLIC "//JasperReports//DTD Report Design//EN" "http://jasperreports.sourceforge.net/dtds/jasperreport.dtd" >
< jasperReport
name ="Person"
columnCount ="1"
printOrder ="Vertical"
orientation ="Portrait"
pageWidth ="595"
pageHeight ="842"
columnWidth ="535"
columnSpacing ="0"
leftMargin ="30"
rightMargin ="30"
topMargin ="20"
bottomMargin ="20"
whenNoDataType ="NoPages"
isTitleNewPage ="false"
isSummaryNewPage ="false" >
< property name ="ireport.scriptlethandling" value ="0" />
< property name ="ireport.encoding" value ="UTF-8" />
< import value ="java.util.*" />
< import value ="net.sf.jasperreports.engine.*" />
< import value ="net.sf.jasperreports.engine.data.*" />
< parameter name ="reportTitle" isForPrompting ="true" class ="java.lang.String" />
< queryString > <![CDATA[ select * from test order by pid DESC ]]> </ queryString >
< field name ="pid" class ="java.lang.String" />
< field name ="name" class ="java.lang.String" />
< field name ="sex" class ="java.lang.String" />
< field name ="password" class ="java.lang.String" />
< field name ="department" class ="java.lang.String" />
< field name ="age" class ="java.lang.String" />
< background >
< band height ="6" isSplitAllowed ="true" >
</ band >
</ background >
< title >
< band height ="29" isSplitAllowed ="true" >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="138"
y ="0"
width ="258"
height ="29"
key ="textField" />
< box ></ box >
< textElement textAlignment ="Center" verticalAlignment ="Middle" markup ="html" >
< font pdfFontName ="Helvetica-Bold" isBold ="true" />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ "<font color='blue' size='5'>"+$P{reportTitle}+"</font>" ]]> </ textFieldExpression >
</ textField >
</ band >
</ title >
< pageHeader >
< band height ="0" isSplitAllowed ="true" >
</ band >
</ pageHeader >
< columnHeader >
< band height ="0" isSplitAllowed ="true" >
</ band >
</ columnHeader >
< detail >
< band height ="22" isSplitAllowed ="true" >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="0"
y ="0"
width ="100"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{pid} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="100"
y ="0"
width ="93"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{name} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="193"
y ="0"
width ="58"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{sex} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="251"
y ="0"
width ="100"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{password} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="351"
y ="0"
width ="100"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{department} ]]> </ textFieldExpression >
</ textField >
< textField isStretchWithOverflow ="false" pattern ="" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="451"
y ="0"
width ="84"
height ="18"
key ="textField" />
< box ></ box >
< textElement verticalAlignment ="Top" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.String" > <![CDATA[ $F{age} ]]> </ textFieldExpression >
</ textField >
< line direction ="TopDown" >
< reportElement
x ="0"
y ="17"
width ="535"
height ="1"
key ="line-1" />
< graphicElement stretchType ="NoStretch" />
</ line >
</ band >
</ detail >
< columnFooter >
< band height ="0" isSplitAllowed ="true" >
</ band >
</ columnFooter >
< pageFooter >
< band height ="24" isSplitAllowed ="true" >
< textField isStretchWithOverflow ="false" isBlankWhenNull ="false" evaluationTime ="Now" hyperlinkType ="None" hyperlinkTarget ="Self" >
< reportElement
x ="387"
y ="5"
width ="22"
height ="18"
key ="textField" />
< box ></ box >
< textElement textAlignment ="Center" verticalAlignment ="Middle" >
< font />
</ textElement >
< textFieldExpression class ="java.lang.Integer" > <![CDATA[ $V{PAGE_NUMBER} ]]> </ textFieldExpression >
</ textField >
< staticText >
< reportElement
x ="373"
y ="5"
width ="14"
height<span style
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