JasperReports结合iReport制作报表-使用JasperReports生成报表

《JasperReports结合iReport制作报表-使用iReport设计报表》

已经在http://www.naxsu.com/jasperreports-jie-he-ireport-zhi-zuo-bao-biao-shi-yong-ireport-she-ji-bao-biao/写得很清楚了，下面就接着说

下载JasperReports

JasperReports主页：http://jasperforge.org/projects/jasperreports

下载要注册，真麻烦

现在的最新版本是4.6.0，下载地址是：http://sourceforge.net/projects/jasperreports/files/jasperreports/JasperReports%204.6.0/

在这里我下载的是jasperreports-4.6.0-project.zip

环境配置

需要的jar包，这是我测试需求哪个加哪个，我生成PDF和HTML报表用到以下已经足够了。

commons-beanutils-1.8.0.jar

commons-collections-2.1.1.jar

commons-digester-2.1.jar

commons-logging-1.1.1.jar

groovy-all-1.7.5.jar

iText-2.1.7.jar

iTextAsian.jar

jasperreports-4.6.0.jar

mysql-connector-java-5.1.7-bin.jar

测试程序

在这里我们就建一个简单的java项目来测试一下。

生成报表主要分为三个步骤：

1. 编译报表

把iReport设计好的报表report1.jrxml编译成report1.jasper

2. 填充报表

连接数据库，把1编译好的report1.jasper填充好，生成report1.jrprint

3. 导出报表

也就是把2.填充好的报表按照各种格式导出来。

代码比较简单，下面直接看代码：

package com.naxsu.report;

import java.io.File;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

import net.sf.jasperreports.engine.JRException;

import net.sf.jasperreports.engine.JRExporterParameter;

import net.sf.jasperreports.engine.JasperCompileManager;

import net.sf.jasperreports.engine.JasperFillManager;

import net.sf.jasperreports.engine.JasperPrint;

import net.sf.jasperreports.engine.export.JRHtmlExporter;

import net.sf.jasperreports.engine.export.JRHtmlExporterParameter;

import net.sf.jasperreports.engine.export.JRPdfExporter;

import net.sf.jasperreports.engine.util.JRLoader;

/**

* JasperReports生成报表简单应用

public class ReportTest {

/**

* 编译报表

public static void compiler(String sourceFileName, String destFileName) {

try {

JasperCompileManager.compileReportToFile(sourceFileName,

destFileName);

} catch (JRException e) {

e.printStackTrace();

}

/**

* 填充报表

public static void fill(String sourceFileName, String destFileName) {

Connection conn = null;

try {

Class.forName("com.mysql.jdbc.Driver");

conn = DriverManager.getConnection(

"jdbc:mysql://localhost:3306/report", "root", "123");

JasperFillManager.fillReportToFile(sourceFileName, destFileName,null, conn);

} catch (JRException e) {

e.printStackTrace();

} catch (ClassNotFoundException e) {

e.printStackTrace();

} catch (SQLException e) {

e.printStackTrace();

}finally{

if(conn != null) {

try {

conn.close();

} catch (SQLException e) {

e.printStackTrace();

}

/**

* 导出HTML格式报表

public static void exportToHTML(String sourceFileName, String destFileName) {

try {

JasperPrint jp = (JasperPrint) JRLoader.loadObject(new File(

sourceFileName));

JRHtmlExporter export = new JRHtmlExporter();

export.setParameter(JRExporterParameter.JASPER_PRINT, jp);

export.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,

destFileName);

export.setParameter(

JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN,

Boolean.FALSE);

export.exportReport();

} catch (JRException e) {

e.printStackTrace();

}

/**

* 导出PDF格式报表

public static void exportToPDF(String sourceFileName, String destFileName) {

try {

JasperPrint jp = (JasperPrint) JRLoader.loadObject(new File(

sourceFileName));

JRPdfExporter export = new JRPdfExporter();

export.setParameter(JRExporterParameter.JASPER_PRINT, jp);

export.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,

destFileName);

export.setParameter(

JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN,

Boolean.FALSE);

export.exportReport();

} catch (JRException e) {

e.printStackTrace();

}

public static void main(String[] args) {

String jrxmlName = "E:\\JasperReports_iReport\\report1.jrxml";

String jasperFileName = "E:\\JasperReports_iReport\\report1.jasper";

String jrprintFileName = "E:\\JasperReports_iReport\\report1.jrprint";

String htmlFileName = "E:\\JasperReports_iReport\\report1.pdf";

ReportTest.compiler(jrxmlName, jasperFileName);

ReportTest.fill(jasperFileName, jrprintFileName);

ReportTest.exportToPDF(jrprintFileName, htmlFileName);

}