对于jasperreport打印这个功能，遇到了一大堆问题，也只能一点一点解决我：
1.现在我用的是jasperreport.jar是4.6版本。
(1).因为网上查到：6.0以上版本已经不再支持java打印功能，只能支持页面打印。
(2).如过可以用浏览器打印，那这个打印问题已经解决了
(3).我不想再用5.6版本重新测试一遍了，因为官网给的jasperreport-apples.jar例子里面有很多问题，不想在是一遍
2.对于程序的需要,：
(1).最好在webapp(根目录)下新建一个applets(自命名)文件夹
(2).applets文件夹放入jre1.6.exe或以上版本,因为jasperreport-4.5是jre1.6写的
(3).从官网的jasperreport-4.6例子中,找到commons-collections.jar、commons-digester.jar、commons-logging.jar，和自己的log4j.jar、log4j-core.jar，放入applets
3.对于jasperreports-applet-4.6.0.jar，也放入applets，但是等到测试的时候，这个jar包里有很多问题，如果提示这个class找不到，就从jasperreoprt-4.6.jar中粘进去
创建jar包
(1).官网给的例子jasperreport-applets-4.6.jar解压后，复制default.jasperreports.properties、net,新建文件夹，粘进去
(2).将缺少的class从jasperreport-4.6.jar粘到你放的位置对应的位置
(3).ctrl+p命令，将default.jasperreports.properties、net生成一个jasperreport-applets-4.6.jar,放入applets
4.这是我把官网例子改了以后的代码
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperPrintManager;
import net.sf.jasperreports.engine.util.JRLoader; import javax.swing.*;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.URL; /**
* Created by 朱星翰 on 2017/9/14.
*/
public class JRPrinterApplet extends javax.swing.JApplet {
private URL url;
private JasperPrint jasperPrint; public JRPrinterApplet(){ }
public void init() {
String strUrl = getParameter("REPORT_URL");
if (strUrl != null) {
try {
url = new URL(getCodeBase(), strUrl);
} catch (Exception e) {
StringWriter swriter = new StringWriter();
PrintWriter pwriter = new PrintWriter(swriter);
e.printStackTrace(pwriter);
JOptionPane.showMessageDialog(this, swriter.toString());
}
}else {
JOptionPane.showMessageDialog(this, "REPORT_URL:不能为空！");
}
}
@Override
public void start() {
if (url != null) {
if (jasperPrint == null) {
try {
jasperPrint = (JasperPrint) JRLoader.loadObject(url);
} catch (Exception e) {
StringWriter swriter = new StringWriter();
PrintWriter pwriter = new PrintWriter(swriter);
e.printStackTrace(pwriter);
JOptionPane.showMessageDialog(this, swriter.toString());
}
}
if (jasperPrint != null) {
final JasperPrint print = jasperPrint; Thread thread = new Thread(new Runnable()
{
public void run()
{
try {
JasperPrintManager.printReport(print, true);
} catch (Exception e) {
StringWriter swriter = new StringWriter();
PrintWriter pwriter = new PrintWriter(swriter);
e.printStackTrace(pwriter);
JOptionPane.showMessageDialog(null, swriter.toString());
}
}
});
thread.start();
} else {
JOptionPane.showMessageDialog(this, "报表是空的！");
}
}
else {
JOptionPane.showMessageDialog(this, "REPORT_URL:不能为空！");
}
}
}
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.util.JRLoader; import javax.swing.*;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.URL; /**
* Created by 朱星翰 on 2017/9/14.
*/
public class JRViewApplet extends javax.swing.JApplet { private URL url;
private JasperPrint jasperPrint; public JRViewApplet(){ }
public void init() {
String strUrl = getParameter("REPORT_URL");
if (strUrl != null) {
try {
url = new URL(getCodeBase(), strUrl);
} catch (Exception e) {
StringWriter swriter = new StringWriter();
PrintWriter pwriter = new PrintWriter(swriter);
e.printStackTrace(pwriter);
JOptionPane.showMessageDialog(this, swriter.toString());
}
}else {
JOptionPane.showMessageDialog(this, "REPORT_URL:不能为空！");
}
} @Override
public void start() {
// Add your handling code here:
if (url != null) {
try {
if (jasperPrint == null) {
jasperPrint = (JasperPrint) JRLoader.loadObject(url);
}
if (jasperPrint != null) {
ViewerFrame viewerFrame = new ViewerFrame(this.getAppletContext(), jasperPrint);
viewerFrame.show();
}else {
JOptionPane.showMessageDialog(this, "报表是空的！");
}
}catch (Exception e) {
StringWriter swriter = new StringWriter();
PrintWriter pwriter = new PrintWriter(swriter);
e.printStackTrace(pwriter);
JOptionPane.showMessageDialog(this, swriter.toString());
}
} else {
JOptionPane.showMessageDialog(this, "REPORT_URL:不能为空！");
}
}
}
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2011 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
import javax.swing.JButton;
import javax.swing.JOptionPane; import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.view.JRViewer; /**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version 4.6.0
*/
public class JRViewerPlus extends JRViewer { /*protected JButton btnPlus = new javax.swing.JButton();*/ public JRViewerPlus(JasperPrint jrPrint) throws JRException {
super(jrPrint); tlbToolBar.remove(btnSave);
tlbToolBar.remove(btnReload); /*btnPlus = new javax.swing.JButton();
btnPlus.setToolTipText("Plus...");
btnPlus.setText("Plus...");
btnPlus.setPreferredSize(new java.awt.Dimension(80, 23));
btnPlus.setMaximumSize(new java.awt.Dimension(80, 23));
btnPlus.setMinimumSize(new java.awt.Dimension(80, 23));
btnPlus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnPlusActionPerformed(evt);
}
});
tlbToolBar.add(btnPlus, 0);*/
} protected void setZooms() {
this.zooms = new int[]{33, 66, 100, 133, 166, 200, 233};
this.defaultZoomIndex = 2;
} /*protected void btnPlusActionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(this, "I just wanted to let you know that you can extend the JRViewer to customize it.\n The button you have pushed was added this way.");
}*/ }
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2011 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.view.JRViewer; /**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version 4.6.0
*/
public class JRViewerSimple extends JRViewer { /**
*
*/
public JRViewerSimple(JasperPrint jrPrint) throws JRException {
super(jrPrint);
tlbToolBar.remove(btnSave);
tlbToolBar.remove(btnReload);
} }
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2011 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
import java.applet.AppletContext;
import java.awt.BorderLayout;
import java.net.MalformedURLException;
import java.net.URL; import javax.swing.JOptionPane; import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRPrintHyperlink;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.view.JRHyperlinkListener; /**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version 4.6.0
*/
public class ViewerFrame extends javax.swing.JFrame implements JRHyperlinkListener { private AppletContext appletContext; public ViewerFrame(AppletContext appletContext, JasperPrint jasperPrint) throws JRException {
initComponents();
this.appletContext = appletContext;
JRViewerPlus viewer = new JRViewerPlus(jasperPrint);
viewer.addHyperlinkListener(this);
this.pnlMain.add(viewer, BorderLayout.CENTER);
} public void gotoHyperlink(JRPrintHyperlink hyperlink) {
switch(hyperlink.getHyperlinkTypeValue()) {
case REFERENCE : {
try {
this.appletContext.showDocument(new URL(hyperlink.getHyperlinkReference()), "_blank");
} catch (MalformedURLException e) {
JOptionPane.showMessageDialog(this, e.getMessage());
}
break;
}
case LOCAL_ANCHOR :
case LOCAL_PAGE : {
break;
}
case REMOTE_ANCHOR :
case REMOTE_PAGE : {
JOptionPane.showMessageDialog(this, "Implement your own JRHyperlinkListener to manage this type of event.");
break;
}
case NONE :
default : {
break;
}
}
} /** 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.
*/
private void initComponents() {//GEN-BEGIN:initComponents
pnlMain = new javax.swing.JPanel(); setTitle("预览");
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
pnlMain.setLayout(new java.awt.BorderLayout()); getContentPane().add(pnlMain, java.awt.BorderLayout.CENTER); pack();
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
int width=1000;
int height=800;
setSize(new java.awt.Dimension(width, height));
setLocation((screenSize.width-width)/2,(screenSize.height-height)/2);
}//GEN-END:initComponents // Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JPanel pnlMain;
// End of variables declaration//GEN-END:variables }
(1).把这些代码放入src下，生成class代码
(2).将class生成jar，我命名print.jar
(3).jar -cvf print.jar *.class (生成jar包)，放入applets
5.签名
1.创建一个证书
keytool -genkey -validity 1800 -keystore applet.store -alias applet
2.导出证书文件
keytool -export -keystore applet.store -alias applet -file applet.cer
3.对jar包进行签名
jarsigner -keystore applet.store jasperreports-applet-4.6.0.jar applet
jarsigner -keystore applet.store print.jar applet (注意：必须签名这个jar包，要不然打印报错)
6.页面，自己处理了很多js，
<a title="打印" onclick="is_ie('JRPrinterApplet')"><img src="${ctx}/static/Images/print.jpg" alt=""></a>
<a title="预览" onclick="is_ie('JRViewApplet')" ><img src="${ctx}/static/Images/look.png" alt=""></a></a>
<a title="更方便的使用打印功能" style="font-size: 11px" href="${ctx}/applets/applet.cer">是否安装安全证书？</a>
function is_ie(str){
if ((navigator.userAgent.indexOf('MSIE') >= 0 && navigator.userAgent.indexOf('Opera') < 0)||(navigator.userAgent.indexOf("Trident") > -1 && navigator.userAgent.indexOf("rv") > -1)){
var archive='print.jar,jasperreports-applet-4.6.0.jar,commons-logging-1.1.1.jar,commons-collections-2.1.1.jar,commons-digester-2.1.jar';
var REPORT_URL='${ctx}/jasper/all_printJasper?';
var codebase='${ctx}/applets'
var file='${ctx}/applets/jre-6u45-windows-i586.exe';
var scriptable=false
var type='application/x-java-applet;version=1.6.0';
$.each(args,function(key,value){
REPORT_URL+=key+"="+value+"&";
});
REPORT_URL=change(REPORT_URL);
REPORT_URL=encodeURI(REPORT_URL);
var write='正在处理'+(str=='JRPrinterApplet'?'打印':'预览')+'...' +
'<object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" width = "0" height = "0" codebase="'+file+'" mayscript>' +
'<param name = "code" value = "'+str+'.class" >' +
'<param name = "codebase" value = "'+codebase+'" >' +
'<param name = "archive" value = "'+archive+'" >' +
'<param name="type" value="'+type+'">' +
'<param name="scriptable" value="'+scriptable+'">' +
'<param name = "REPORT_URL" value ="'+REPORT_URL+'">' +
'<comment>' +
'<embed type="'+type+'" code="'+str+'.class" java_codebase="'+codebase+'" archive="'+archive+'" scriptable='+scriptable+' pluginspage="'+file+'" >' +
'<noembed></noembed>' +
'</embed>' +
'</comment>' +
'</object>'
document.write(write);
}else {
alert('预览打印仅支持ie浏览器')
}
}
最后，终于完成了，总之，觉的jasperreport-applets-4.6官网给的好多错误地方，只有慢慢去找问题