Java Applet错误启动
[英]Java Applet Error Launching
问题描述
我创建了一个小的Java Applet，可以在公司网站上运行。 我目前正在使用Eclipse进行开发，尝试从相应的网页启动应用程序时遇到了问题。 我的员工已将正确的.JAR文件放入页面本身的HTML文件中，并使用以下代码调用该applet：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<applet code=OrderForm.class name=OrderForm archive=OrderForm.jar
width=700 height=1100 >
<param name="bgcolor" value="ffffff">
<param name="fontcolor" value="000000">
Your browser is not Java enabled.
</applet>
</body>
</html>
所有这些对我来说似乎都是正确的，JAR文件已正确标记，而.class文件是正确的。 当页面打开时，我收到消息“错误。单击以获取详细信息”，但是当我单击“ X”时，页面冻结，并且不显示任何错误详细信息。
该JAR文件是使用Eclipse导出的，并且我确定已经包含了所有需要编译的文件（因为它可以与Eclipse中的Java Applet Viewer完美地编译）。 这是下面的applet，它只是我创建的一个测试applet，是由于尝试在公司网站上运行较大的applet时收到的一些过去的错误，因此，本文涵盖了applet本身的基本功能，谢谢。
package OrderForm;
import javax.swing.JPanel;
import javax.swing.JApplet;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JLabel;
import javax.swing.JComboBox;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JCheckBox;
import javax.swing.SwingUtilities;
import java.awt.Rectangle;
import java.lang.reflect.InvocationTargetException;
import javax.swing.JButton;
@SuppressWarnings("serial")
public class OrderForm extends JApplet {
private JPanel mainPanel = null; // @jve:decl-index=0:visual-constraint="10,10"
private JLabel titleLabel = null;
private JLabel customerInfoLabel = null;
private JLabel distributorLabel = null;
private JLabel customerNameLabel = null;
private JLabel existingCustomerLabel = null;
private JLabel industryLabel = null;
private JLabel emailAddressLabel = null;
private JButton testing = null;
private JTextField text_customerName = null;
private JTextField text_emailAddress = null;
private JComboBox distributors = null;
private JComboBox industries = null;
private JCheckBox check_existingCustomer = null;
/**
* This is the xxx default constructor
*/
public OrderForm() {
super();
}
/**
* This method initializes this
*
* @return void
*/
public void init() {
try
{
SwingUtilities.invokeAndWait(new Runnable()
{
public void run()
{
setSize(645, 373);
setContentPane(getJContentPane());
}
});
}
catch (InterruptedException e) { e.printStackTrace(); }
catch (InvocationTargetException e) { e.printStackTrace(); }
}
/**
* This method initializes mainPanel
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (mainPanel == null) {
emailAddressLabel = new JLabel();
emailAddressLabel.setBounds(new Rectangle(164, 226, 137, 16));
emailAddressLabel.setText("Email Address:");
industryLabel = new JLabel();
industryLabel.setBounds(new Rectangle(165, 196, 136, 16));
industryLabel.setText("Industry:");
existingCustomerLabel = new JLabel();
existingCustomerLabel.setBounds(new Rectangle(165, 165, 136, 16));
existingCustomerLabel.setText("Existing Customer?:");
customerNameLabel = new JLabel();
customerNameLabel.setBounds(new Rectangle(166, 134, 135, 16));
customerNameLabel.setText("Customer Name:");
distributorLabel = new JLabel();
distributorLabel.setBounds(new Rectangle(165, 105, 136, 16));
distributorLabel.setText("Distributor:");
customerInfoLabel = new JLabel();
customerInfoLabel.setBounds(new Rectangle(30, 60, 166, 31));
customerInfoLabel.setText("Customer Information");
titleLabel = new JLabel();
titleLabel.setBounds(new Rectangle(180, 15, 286, 40));
titleLabel.setText("Order Form");
mainPanel = new JPanel();
mainPanel.setSize(new Dimension(624, 1055));
mainPanel.setLayout(null);
mainPanel.setBackground(Color.white);
mainPanel.add(titleLabel, null);
mainPanel.add(customerInfoLabel, null);
mainPanel.add(distributorLabel, null);
mainPanel.add(customerNameLabel, null);
mainPanel.add(existingCustomerLabel, null);
mainPanel.add(industryLabel, null);
mainPanel.add(emailAddressLabel, null);
mainPanel.add(getTesting(), null);
mainPanel.add(getText_customerName(), null);
mainPanel.add(getText_emailAddress(), null);
mainPanel.add(getDistributors(), null);
mainPanel.add(getIndustries(), null);
mainPanel.add(getCheck_existingCustomer(), null);
}
return mainPanel;
}
/**
* This method initializes testing
*
* @return javax.swing.JButton
*/
private JButton getTesting() {
if (testing == null) {
testing = new JButton();
testing.setBounds(new Rectangle(225, 285, 181, 61));
testing.setText("TEST");
testing.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
String distSelected = (String) distributors.getSelectedItem();
String industrySelected = (String) industries.getSelectedItem();
if(distSelected.equals(" "))
JOptionPane.showMessageDialog(null, "No Distributor Selected.", "Error", JOptionPane.INFORMATION_MESSAGE);
else if(industrySelected.equals(" "))
JOptionPane.showMessageDialog(null, "No Industry Selected.", "Error", JOptionPane.INFORMATION_MESSAGE);
else if(text_customerName.getText().length() == 0)
JOptionPane.showMessageDialog(null, "No Name Entered.", "Error", JOptionPane.INFORMATION_MESSAGE);
else if(text_emailAddress.getText().length() == 0)
JOptionPane.showMessageDialog(null, "No Email Entered.", "Error", JOptionPane.INFORMATION_MESSAGE);
else
JOptionPane.showMessageDialog(null, "Data Entered Successfully", "Success", JOptionPane.INFORMATION_MESSAGE);
}
});
}
return testing;
}
/**
* This method initializes text_customerName
*
* @return javax.swing.JTextField
*/
private JTextField getText_customerName() {
if (text_customerName == null) {
text_customerName = new JTextField();
text_customerName.setBounds(new Rectangle(300, 135, 121, 16));
}
return text_customerName;
}
/**
* This method initializes text_emailAddress
*
* @return javax.swing.JTextField
*/
private JTextField getText_emailAddress() {
if (text_emailAddress == null) {
text_emailAddress = new JTextField();
text_emailAddress.setBounds(new Rectangle(300, 225, 121, 16));
}
return text_emailAddress;
}
/**
* This method initializes distributors
*
* @return javax.swing.JComboBox
*/
private JComboBox getDistributors() {
if (distributors == null) {
distributors = new JComboBox();
distributors.setBounds(new Rectangle(300, 105, 121, 16));
String[] distributorList = getDistributorList();
for(String d:distributorList)
distributors.addItem(d);
}
return distributors;
}
/**
* Initialize the list of distributors for the drop-down list
* @return String[] containing the names of all distributors
*/
private String[] getDistributorList()
{
String[] distributors =
{
" ",
"a1envirotech", "Beun-De Ronde B.V.", "Biolab A/S", "BRS", "Camlab Ltd.", "DKSH Australia Pty Ltd.", "DKSH New Zealand Ltd.",
"DKSH - Malaysia", "DKSH - Philippines", "DKSH - Singapore", "DKSH - Vietnam", "E&C Technology Co., Ltd.", "FKV s.r.l.",
"G&W Marketing", "LICA United Technology Ltd.", "Mandel Scientific Company Inc.", "Mansci (Aaron Gotway)", "Mansci (Chris Copeland)",
"Mansci (Jake Bolotin)", "Mansci (Matt Grey)", "Mansci (Wes Floyd)", "Serlabo", "Southern Systems Ltd.", "TM - Autolab",
"Wirsam Scientific"
};
return distributors;
}
/**
* This method initializes industries
*
* @return javax.swing.JComboBox
*/
private JComboBox getIndustries() {
if (industries == null) {
industries = new JComboBox();
industries.setBounds(new Rectangle(300, 195, 121, 16));
String[] industryList = getIndustryList();
for(String i:industryList)
industries.addItem(i);
}
return industries;
}
/**
* Initialize the list of industries for the drop-down list
*/
private String[] getIndustryList()
{
String[] industries =
{
" ", "Commercial Lab", "Environmental", "Food / Wine", "Government", "Marine Lab",
"Other", "Petro Chemical", "Power Generation", "Pulp & Paper", "University"
};
return industries;
}
/**
* This method initializes check_existingCustomer
*
* @return javax.swing.JCheckBox
*/
private JCheckBox getCheck_existingCustomer() {
if (check_existingCustomer == null) {
check_existingCustomer = new JCheckBox();
check_existingCustomer.setBounds(new Rectangle(300, 165, 31, 16));
}
return check_existingCustomer;
}
} // @jve:decl-index=0:visual-constraint="10,10"
1 个解决方案
解决方案1
1 2011-04-12 18:35:37
您的JApplet位于（以非常规方式命名的） package OrderForm ，但是您的<applet>标记不反映这一点。
启动java applet
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.