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整合Struts2+JasperReport Web报表应用示例

JasperReports作为一种优秀且开源的报表引擎,不利用太可惜了。同时,借助开源的JasperReports模板设计利器iReports,可以可视化的设计报表模板。基于Web的报表在很多项目中都是需要的。而随着Struts2的流行,就应该研究一下在Struts2下如何利用JasperReports进行报表输出。本示例比较简单,采用的数据源即为JavaBean,而没有采用复杂的数据库,其实原理是一样的。只是传递给JasperReports的参数随着连接方式的变化而略加修改而已。

准备工作

所使用的类库及Jar包如下图所示:


1.使用的Jar

开发环境:MyEclipse5.5+Eclipse3.2+JDK5.0+Tomcat5.5+Struts 2.0.6。当然,本该所提供的源代码下载中没有提供相关的lib,因为文件大太,如果需要,请留下email

源代码下载:Struts2AndJasperReport.rar

设计报表模板

本例中采用JavaBean作为数据源,用于显示People对象的一些基本属性,如所在序号、城市、姓名、地址,并对同一城市的人员进行汇总小结显示。

至于如何在iReports中设计模板文件,请在网上参考其它文档。这里不再详细解读,或有时间俺再另写文章来具体讲解如何在iReports中设计报表模板。WebRoot"jasper"jasper_template.jrxml代码如下:

<?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="jasper_template"
         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="rptMan" isForPrompting="false" class="java.lang.String">
        
<defaultValueExpression ><![CDATA["sterning"]]></defaultValueExpression>
    
</parameter>
    
<parameter name="rptDate" isForPrompting="false" class="java.lang.String">
        
<defaultValueExpression ><![CDATA["2008-01-12"]]></defaultValueExpression>
    
</parameter>

    
<field name="city" class="java.lang.String">
        
<fieldDescription><![CDATA[city]]></fieldDescription>
    
</field>
    
<field name="street" class="java.lang.String">
        
<fieldDescription><![CDATA[street]]></fieldDescription>
    
</field>
    
<field name="id" class="java.lang.Integer">
        
<fieldDescription><![CDATA[id]]></fieldDescription>
    
</field>
    
<field name="name" class="java.lang.String">
        
<fieldDescription><![CDATA[name]]></fieldDescription>
    
</field>

    
<variable name="CityNumber" class="java.lang.Integer" resetType="Group" resetGroup="CityGroup" calculation="Sum">
        
<initialValueExpression><![CDATA[($V{CityNumber} != null)?(new Integer($V{CityNumber}.intValue() + 1)):(new Integer(1))]]></initialValueExpression>
    
</variable>
    
<variable name="AllCity" class="java.lang.Integer" resetType="Report" calculation="Sum">
        
<initialValueExpression><![CDATA[($V{AllCity} != null)?(new Integer($V{AllCity}.intValue() + 1)):(new Integer(1))]]></initialValueExpression>
    
</variable>

        
<group  name="CityGroup" >
            
<groupExpression><![CDATA[$F{city}]]></groupExpression>
            
<groupHeader>
            
<band height="0"  isSplitAllowed="true" >
            
</band>
            
</groupHeader>
            
<groupFooter>
            
<band height="37"  isSplitAllowed="true" >
                
<staticText>
                    
<reportElement
                        
x="98"
                        y
="5"
                        width
="51"
                        height
="25"
                        key
="staticText-8"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="14" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<text><![CDATA[灏忚锛歖]></text>
                </staticText>
                <textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"  hyperlinkTarget="Self" >
                    <reportElement
                        x="149"
                        y="5"
                        width="34"
                        height="25"
                        key="textField-7"/>
                    <box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    <textElement>
                        <font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="14" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    </textElement>
                <textFieldExpression   class="java.lang.Integer"><![CDATA[$V{CityGroup_COUNT}
]]></textFieldExpression>
                
</textField>
                
<line direction="TopDown">
                    
<reportElement
                        
x="-30"
                        y
="36"
                        width
="593"
                        height
="0"
                        key
="line-5"/>
                    
<graphicElement stretchType="NoStretch"/>
                
</line>
            
</band>
            
</groupFooter>
        
</group>
        
<background>
            
<band height="0"  isSplitAllowed="true" >
            
</band>
        
</background>
        
<title>
            
<band height="62"  isSplitAllowed="true" >
                
<staticText>
                    
<reportElement
                        
x="20"
                        y
="0"
                        width
="484"
                        height
="57"
                        forecolor
="#FF0033"
                        key
="staticText-1"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement textAlignment="Center">
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="36" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<text><![CDATA[Struts2+JasperReports绀轰緥]]></text>
                
</staticText>
                
<line direction="TopDown">
                    
<reportElement
                        
x="-30"
                        y
="61"
                        width
="594"
                        height
="0"
                        key
="line-4"/>
                    
<graphicElement stretchType="NoStretch"/>
                
</line>
            
</band>
        
</title>
        
<pageHeader>
            
<band height="13"  isSplitAllowed="true" >
                
<line direction="TopDown">
                    
<reportElement
                        
x="-29"
                        y
="12"
                        width
="592"
                        height
="0"
                        key
="line-3"/>
                    
<graphicElement stretchType="NoStretch"/>
                
</line>
            
</band>
        
</pageHeader>
        
<columnHeader>
            
<band height="45"  isSplitAllowed="true" >
                
<staticText>
                    
<reportElement
                        
x="13"
                        y
="5"
                        width
="62"
                        height
="33"
                        key
="staticText-2"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="24" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<text><![CDATA[搴忓彿]]></text>
                
</staticText>
                
<staticText>
                    
<reportElement
                        
x="98"
                        y
="5"
                        width
="62"
                        height
="33"
                        key
="staticText-3"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="24" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<text><![CDATA[鍩庡競]]></text>
                
</staticText>
                
<staticText>
                    
<reportElement
                        
x="212"
                        y
="5"
                        width
="62"
                        height
="33"
                        key
="staticText-4"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="24" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<text><![CDATA[濮撳悕]]></text>
                
</staticText>
                
<staticText>
                    
<reportElement
                        
x="331"
                        y
="5"
                        width
="62"
                        height
="33"
                        key
="staticText-5"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="24" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<text><![CDATA[浣忓潃]]></text>
                
</staticText>
                
<line direction="TopDown">
                    
<reportElement
                        
x="-30"
                        y
="43"
                        width
="596"
                        height
="0"
                        key
="line-2"/>
                    
<graphicElement stretchType="NoStretch"/>
                
</line>
            
</band>
        
</columnHeader>
        
<detail>
            
<band height="43"  isSplitAllowed="true" >
                
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"  hyperlinkTarget="Self" >
                    
<reportElement
                        
x="13"
                        y
="7"
                        width
="62"
                        height
="30"
                        key
="textField-1"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="14" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<textFieldExpression   class="java.lang.Integer"><![CDATA[$F{id}]]></textFieldExpression>
                
</textField>
                
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"  hyperlinkTarget="Self" >
                    
<reportElement
                        
x="98"
                        y
="7"
                        width
="105"
                        height
="29"
                        key
="textField-2"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="14" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<textFieldExpression   class="java.lang.String"><![CDATA[$F{city}]]></textFieldExpression>
                
</textField>
                
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"  hyperlinkTarget="Self" >
                    
<reportElement
                        
x="212"
                        y
="8"
                        width
="100"
                        height
="28"
                        key
="textField-3"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="14" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<textFieldExpression   class="java.lang.String"><![CDATA[$F{name}]]></textFieldExpression>
                
</textField>
                
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"  hyperlinkTarget="Self" >
                    
<reportElement
                        
x="331"
                        y
="7"
                        width
="111"
                        height
="30"
                        key
="textField-4"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="14" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<textFieldExpression   class="java.lang.String"><![CDATA[$F{street}]]></textFieldExpression>
                
</textField>
                
<line direction="TopDown">
                    
<reportElement
                        
x="-30"
                        y
="37"
                        width
="593"
                        height
="0"
                        key
="line-1"/>
                    
<graphicElement stretchType="NoStretch"/>
                
</line>
            
</band>
        
</detail>
        
<columnFooter>
            
<band height="37"  isSplitAllowed="true" >
            
</band>
        
</columnFooter>
        
<pageFooter>
            
<band height="50"  isSplitAllowed="true" >
                
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"  hyperlinkTarget="Self" >
                    
<reportElement
                        
x="98"
                        y
="18"
                        width
="138"
                        height
="23"
                        key
="textField-8"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement textAlignment="Right">
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="12" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<textFieldExpression   class="java.lang.String"><![CDATA["椤垫暟 " + String.valueOf($V{PAGE_NUMBER}) + " of"]]></textFieldExpression>
                
</textField>
                
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Report" hyperlinkType="None"  hyperlinkTarget="Self" >
                    
<reportElement
                        
x="239"
                        y
="18"
                        width
="83"
                        height
="23"
                        key
="textField-9"/>
                    
<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>
                    
<textElement>
                        
<font fontName="瀹嬩綋" pdfFontName="STSong-Light" size="12" isPdfEmbedded ="true" pdfEncoding ="UniGB-UCS2-H"/>
                    
</textElement>
                
<textFieldExpression   class="java.lang.String"><![CDATA[" " + String.valueOf($V{PAGE_NUMBER})]]></textFieldExpression>
                
</textField>
            
</band>
        
</pageFooter>
        
<lastPageFooter>
            
<band height="50"  isSplitAllowed="true" >
            
</band>
        
</lastPageFooter>
        
<summary>
            
<band height="0"  isSplitAllowed="true" >
            
</band>
        
</summary>
</jasperReport>
 

这里需要说明的是,由于俺们中国的中文比较特殊,由此在PDF中显示的时候,需要一些额外的Jar包字体来支持。因此需要下载iTextAsian.jar包,此包专门用于显示亚洲的字符。

设计JavaBean

由本例中没有使用数据库,而是使用JavaBean作为JRDataSource,来传递给JasperReports作为数据源,因此只需要设计JavaBean"src"com"sterning"PeopleBean.java的代码很简单,只在字个字段:cityidnamestreet,代码如下所示:

package com.sterning;

public class PeopleBean
{
    
private String city = null;
    
private Integer id = null;
    
private String name = null;
    
private String street = null;

    
public PeopleBean(
        String pcity,
        Integer pid,
        String pname,
        String pstreet
        )
    
{
        city 
= pcity;
        id 
= pid;
        name 
= pname;
        street 
= pstreet;
    }


    
public PeopleBean getMe()
    
{
        
return this;
    }


    
public String getCity()
    
{
        
return city;
    }


    
public Integer getId()
    
{
        
return id;
    }


    
public String getName()
    
{
        
return name;
    }


    
public String getStreet()
    
{
        
return street;
    }

}


 

编译模板

其实表面上说是填充数据,其实就是填充一个List。具体的工具都是交给我们的JasperReports去完成。JasperReports要完成数据的填充工作,要经历将编译(将模板文件.jrxml编译成.jasper文件)、加载(加载.jasper文件)、填充(从数据源中取得数据并填充到.jasper二进制文件中)三大步骤。src"com"sterning"JasperAction.java,其代码如下所示:

package com.sterning;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import net.sf.jasperreports.engine.JasperCompileManager;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class JasperAction extends ActionSupport {
    
private static final long serialVersionUID = 1L;

    
private List<PeopleBean> myList;

    
public String execute() throws Exception {
        
//添加数据
        PeopleBean p1=new PeopleBean("长沙"new Integer(9), "李化""天洒路");
        PeopleBean p2
=new PeopleBean("长沙"new Integer(22), "王小样""呆小路564");
        PeopleBean p3
=new PeopleBean("南昌"new Integer(23), "王奸可""小顺路");
        PeopleBean p4
=new PeopleBean("南昌"new Integer(32), "李洒""顺濉路");
        PeopleBean p5
=new PeopleBean("武汉"new Integer(39), "张中尖""天洒路");
        PeopleBean p6
=new PeopleBean("武汉"new Integer(35), "陈主宁""天河路564");
        myList 
= new ArrayList<PeopleBean>();
        myList.add(p1);
        myList.add(p2);
        myList.add(p3);
        myList.add(p4);
        myList.add(p5);
        myList.add(p6);

        
try {
            String reportSource;
            reportSource 
= ServletActionContext.getServletContext()
                    .getRealPath(
"/jasper/jasper_template.jrxml");
            File parent 
= new File(reportSource).getParentFile();
            
//将.jrxml模板文件编译成为.jasper文件,当然,其文件名可以指定,如果没指定,则与.jrxml文件名一样.只是后缀不同而已
            JasperCompileManager.compileReportToFile(reportSource, new File(
                    parent, 
"compiled_jasper_template.jasper")
                    .getAbsolutePath());
        }
 catch (Exception e) {
            e.printStackTrace();
            
return ERROR;
        }

        
return SUCCESS;
    }


    
public List getMyList() {
        
return myList;
    }

}


 

配置Struts2文件

前面这些工作都是为JasperReports而作的。接下来就是将JasperReports集成到Struts2中。

1. Web.xml

首先是Web.xml。这个文件配置比较简单,也比较常规,没什么好说,代码如下WebRoot"WEB-INF"web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation
="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
>
    
<filter>
        
<filter-name>struts2</filter-name>
        
<filter-class>
            org.apache.struts2.dispatcher.FilterDispatcher
        
</filter-class>
        
<init-param>
            
<param-name>config</param-name>
            
<param-value>
                struts-default.xml,struts-plugin.xml,struts.xml
            
</param-value>
        
</init-param>
    
</filter>
    
<filter-mapping>
        
<filter-name>struts2</filter-name>
        
<url-pattern>/*</url-pattern>
    
</filter-mapping>

    
<!-- The Welcome File List -->
    
<welcome-file-list>
        
<welcome-file>index.jsp</welcome-file>
    
</welcome-file-list>
</web-app>

 

2. struts.xml

按理说struts.xml配置文件应该更加简单,但这里由于集成了JasperReports,所以看上去要复杂一点。先来看代码:src" struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd"
>
<struts>
    
<package name="default"
        extends
="struts-default,jasperreports-default">
        
<action name="PDF" class="com.sterning.JasperAction">
            
<result name="success" type="jasper">
                
<param name="location">
                    /jasper/compiled_jasper_template.jasper
                
</param>
                
<param name="dataSource">myList</param>
                
<param name="format">PDF</param>
            
</result>
        
</action>
        
<action name="HTML" class="com.sterning.JasperAction">
            
<result name="success" type="jasper">
                
<param name="location">
                    /jasper/compiled_jasper_template.jasper
                
</param>
                
<param name="dataSource">myList</param>
                
<param name="format">HTML</param>
            
</result>
        
</action>
        
<action name="XML" class="com.sterning.JasperAction">
            
<result name="success" type="jasper">
                
<param name="location">
                    /jasper/compiled_jasper_template.jasper
                
</param>
                
<param name="dataSource">myList</param>
                
<param name="format">XML</param>
            
</result>
        
</action>
        
<action name="CSV" class="com.sterning.JasperAction">
            
<result name="success" type="jasper">
                
<param name="location">
                    /jasper/compiled_jasper_template.jasper
                
</param>
                
<param name="dataSource">myList</param>
                
<param name="format">CSV</param>
            
</result>
        
</action>
        
<action name="XLS" class="com.sterning.JasperAction">
            
<result name="success" type="jasper">
                
<param name="location">
                    /jasper/compiled_jasper_template.jasper
                
</param>
                
<param name="dataSource">myList</param>
                
<param name="format">XLS</param>
            
</result>
        
</action>
    
</package>
</struts>
 

这里,当调用JasperActionexecute()方法成功后,返回后,可见有三个参数:location告诉JasperReports数据填充类二进制的.jasper文件的位置,dataSource指明使用什么数据源,format指明报表输出的格式。


 

页面文件

Index.jsp的代码非常的简单,如下:

<%@ page language="java" pageEncoding="GB2312"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    
<head>
        
<title>Struts2+ JasperReports 使用示例</title>
    
</head>
    
<body>
        
<href="HTML.action">HTML</a>
        
<br>
        
<href="PDF.action">PDF</a>
        
<br>
        
<href="XML.action">XML</a>
        
<br>
        
<href="CSV.action">CSV</a>
        
<br>
        
<href="XLS.action">XLS</a>
    
</body>
</html>

 

运行效果

1HTML格式

2.HTML格式

2PDF格式


3.PDF格式

3XML格式


4.XML格式

4Excel格式


5.Excel格式

posted on 2010-04-20 22:12 cart 阅读(703) 评论(1)  编辑  收藏 所属分类: STRUTS

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# re: 整合Struts2+JasperReport Web报表应用示例 2011-12-27 16:53 黄耀祖
你好,麻烦下您把Jar包发到我的邮箱下:565625933@qq.com
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