netbeans上的ireport 3.7.4 6.9.1韩元';不执行
我不熟悉java和jasperreport。我很难完成一份小报告。我已经添加了所有必需的jar文件,没有遇到任何错误 如何使用netbeans自动生成的jbutton“mouseclicked”事件生成pdf文件? 以下是我在ThaineBeans和ireport教程网站的教程中编写的代码:netbeans上的ireport 3.7.4 6.9.1韩元';不执行,netbeans,jasper-reports,ireport,netbeans-6.9,jbutton,Netbeans,Jasper Reports,Ireport,Netbeans 6.9,Jbutton,我不熟悉java和jasperreport。我很难完成一份小报告。我已经添加了所有必需的jar文件,没有遇到任何错误 如何使用netbeans自动生成的jbutton“mouseclicked”事件生成pdf文件? 以下是我在ThaineBeans和ireport教程网站的教程中编写的代码: import net.sf.jasperreports.engine.*; import net.sf.jasperreports.engine.design.*; import net.sf.jasper
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.design.*;
import net.sf.jasperreports.view.*;
import net.sf.jasperreports.engine.xml.*;
public class MyiReportViewer extends javax.swing.JFrame {
/** Creates new form MyiReportViewer */
final String JDBC = "com.mysql.jdbc.Driver";
final String DB = "jdbc:mysql://localhost/afemdb?user=root&password";
private Connection con;
/** Creates new form NewJPanel */
public MyiReportViewer() {
initComponents();
try{
Class.forName(JDBC).newInstance();
con =DriverManager.getConnection(DB);
}
catch(Exception e){
}
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jButton1 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton1.setText("jButton1");
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jButton1MouseClicked(evt);
}
});
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(95, 95, 95)
.addComponent(jButton1)
.addContainerGap(230, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(72, 72, 72)
.addComponent(jButton1)
.addContainerGap(205, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
try{
//JasperDesign jasperDesign = JRXmlLoader.load("C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\InstructorQuestionaire.jrxml");
//JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
//JasperViewer.viewReport(jasperPrint, true);
JasperReport report = JasperCompileManager.compileReport("C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\InstructorQuestionaire.jrxml");
JasperPrint print = JasperFillManager.fillReport(report, null, con);
JRViewer viewer = new JRViewer(print);
viewer.setOpaque(true);
viewer.setVisible(true);
}
catch(Exception e){
}
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
// try{
// JasperDesign jasperDesign = JRXmlLoader.load("C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\InstructorQuestionaire.jrxml");
// JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
// JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, null, con);
// JasperViewer.viewReport(jasperPrint, true);
//JasperReport report = JasperCompileManager.compileReport("C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\InstructorQuestionaire.jrxml");
//JasperPrint print = JasperFillManager.fillReport(report,null, con);
//JRViewer viewer = new JRViewer(print);
//viewer.setOpaque(true);
//viewer.setVisible(true);
// }
// catch(Exception e){
//}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new MyiReportViewer().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
// End of variables declaration
}
import net.sf.jasperreports.engine.*;
导入net.sf.jasperreports.engine.design.*;
导入net.sf.jasperreports.view.*;
导入net.sf.jasperreports.engine.xml.*;
公共类MyiReportViewer扩展了javax.swing.JFrame{
/**创建新表单MyiReportViewer*/
最后一个字符串JDBC=“com.mysql.JDBC.Driver”;
final String DB=“jdbc:mysql://localhost/afemdb?user=root&password";
私人连接;
/**创建新表单NewJPanel*/
公共MyiReportViewer(){
初始化组件();
试一试{
Class.forName(JDBC.newInstance();
con=DriverManager.getConnection(DB);
}
捕获(例外e){
}
}
/**此方法从构造函数中调用,以
*初始化表单。
*警告:请勿修改此代码。此方法的内容为
*始终由表单编辑器重新生成。
*/
@抑制警告(“未选中”)
//
私有组件(){
jButton1=newjavax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setText(“jButton1”);
jButton1.addMouseListener(新java.awt.event.MouseAdapter(){
public void mouseClicked(java.awt.event.MouseEvent evt){
jButton1MouseClicked(evt);
}
});
jButton1.addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(95,95,95)
.addComponent(jButton1)
.addContainerGap(230,简称最大值))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(72,72,72)
.addComponent(jButton1)
.addContainerGap(205,简称最大值))
);
包装();
}//
私有void jButton1MouseClicked(java.awt.event.MouseEvent evt){
//TODO在此处添加您的处理代码:
试一试{
//JasperDesign JasperDesign=JRXmlLoader.load(“C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\Instructor QuestionAire.jrxml”);
//JasperReport-JasperReport=JasperCompileManager.compileReport(jasperDesign);
//JasperViewer.viewReport(jasperPrint,true);
JasperReport=jaspeCompileManager.compileReport(“C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\Instructor QuestionAire.jrxml”);
JasperPrint print=JasperFillManager.fillReport(report,null,con);
JRViewer=新的JRViewer(打印);
viewer.setOpaque(true);
viewer.setVisible(true);
}
捕获(例外e){
}
}
私有void jButton1ActionPerformed(java.awt.event.ActionEvent evt){
//TODO在此处添加您的处理代码:
//试一试{
//JasperDesign JasperDesign=JRXmlLoader.load(“C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\Instructor QuestionAire.jrxml”);
//JasperReport-JasperReport=JasperCompileManager.compileReport(jasperDesign);
//JasperPrint JasperPrint=JasperFillManager.fillReport(jaspereport,null,con);
//JasperViewer.viewReport(jasperPrint,true);
//JasperReport=jaspeCompileManager.compileReport(“C:\\Documents and Settings\\Lelou\\Desktop\\presentation\\Instructor QuestionAire.jrxml”);
//JasperPrint print=JasperFillManager.fillReport(report,null,con);
//JRViewer=新的JRViewer(打印);
//viewer.setOpaque(true);
//viewer.setVisible(true);
// }
//捕获(例外e){
//}
}
/**
*@param指定命令行参数
*/
公共静态void main(字符串参数[]){
invokeLater(new Runnable()){
公开募捐{
新建MyiReportViewer().setVisible(true);
}
});
}
//变量声明-不修改
私有javax.swing.JButton jButton1;
//变量结束声明
}
将此添加到jButton1ActionPerformed方法中。你不需要鼠标点击按钮
try {
URL reportFileURL = getClass().getResource("C:/Documents and Settings/Lelou/Desktop/presentation/InstructorQuestionaire.jrxml");
File reportFile = new File(reportFileURL.toURI());
JasperDesign jasperDesign = JRXmlLoader.load(reportFile);
JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, null, con);
JasperViewer jv = new JasperViewer(jasperPrint);
JDialog viewer = new JDialog(this, "Batch Report", true);
viewer.setBounds(jv.getBounds());
viewer.getContentPane().add(jv.getContentPane());
viewer.setResizable(true);
viewer.setIconImage(jv.getIconImage());
viewer.setVisible(true);
} catch (JRException exc) {
System.out.println(exc.getMessage());
} catch (URISyntaxException exs) {
System.out.println(exs.getMessage());
}
(*)注意路径名处的斜杠。摆脱双反斜杠
以下是您的进口商品:
import java.io.File;
import java.net.URISyntaxException;
import java.net.URL;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.swing.JDialog;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.view.JasperViewer;
import net.sf.jasperreports.engine.JasperPrint;
以下是您需要的库(我使用iReport 4.0.1):
大部分都在这里:C:\ProgramFiles\JasperSoft\iReport-4.0.1\iReport\modules\ext 检查您的连接字符串。如有疑问,请使用此构造函数:
public MyiReportViewer() {
initComponents();
try {
Class.forName(JDBC);
//con =DriverManager.getConnection(DB);
try {
con = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/afemdb?useUnicode=true&characterEncoding=UTF-8",
"root", "password");
} catch (SQLException e) {
System.out.println("Con " + e);
}
} catch (ClassNotFoundException e) {
System.out.println("SQL" + e);
}
}
如果它仍然不起作用,那么您的iReport肯定有问题 是否需要导入程序包…出现以下错误符号:class URL reportFileURL=getClass().getResource(“C:\\Documents and Settings\\Lelou\\Desktop\\present