初次使用FreeTTS 的jsapi.jar 遇到问题

Question

问题:speechSynthesizer 无法获得对象,为null.初始化对象哪里错了,请高手教我代码:

Answer 1

package me;import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;import java.util.Locale;import javax.speech.Central;
import javax.speech.synthesis.Synthesizer;
import javax.speech.synthesis.SynthesizerModeDesc;
import javax.speech.synthesis.SynthesizerProperties;
import javax.swing.*;
public class PhoneBook extends JFrame
{
private JLabel label1;
private JLabel label2;

private JComboBox cboName;
private JButton btnPhoneButton;

//声明实例变量speechSynthesizer
private Synthesizer speechSynthesizer;

private String[] namesArray = {"John","Jennifer","Howard"};

private String[] numbersArray={"555-98787","555-1234","555-456"};

public PhoneBook()
{
try {
 
//create a Synthesizer

 SynthesizerModeDesc desc = new SynthesizerModeDesc("Unlimited domain FreeTTS Speech Synthesizer from Sun Labs",null,Locale.US,Boolean.FALSE,null);
 speechSynthesizer = Central.createSynthesizer(desc); //created successfully
if(speechSynthesizer != null)
{
//prepare synthesizer to speek
speechSynthesizer.allocate();
speechSynthesizer.resume();

// get synthesizer's properties
SynthesizerProperties properties = speechSynthesizer.getSynthesizerProperties();
//set up speeking rate 朗读语速
properties.setSpeakingRate(100f);
}
else
{

System.err.println("Systhesizer created failed!");
System.exit(1);
}
}
catch (Exception e) 
{
e.printStackTrace();
} 
createUserInterface();
}
private void createUserInterface()
{
Container contentPane = this.getContentPane();
contentPane.setLayout(null);

label1 = new JLabel("select a name:");
label1.setBounds(16, 8,264,23);
contentPane.add(label1);

label2 = new JLabel("read the phonenumber of the man");
label2.setBounds(16,35,264,23);
contentPane.add(label2);

cboName = new JComboBox();
cboName.setBounds(50,65,150,23);
cboName.addItem(namesArray[0]);
cboName.addItem(namesArray[1]);
cboName.addItem(namesArray[2]);
contentPane.add(cboName);

btnPhoneButton = new JButton("phoneNumber");
btnPhoneButton.setBounds(50,100,150,23);
contentPane.add(btnPhoneButton);
btnPhoneButton.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent e) 
{
 
getPhoneNumber(e);
}
}
);

setTitle("Phone BOok");
setSize(300,165);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.addWindowListener(
new WindowAdapter()
{
public void windowClosing(WindowEvent evt)
{
frameWindowClosing(evt);
}
}
);
}
public void frameWindowClosing(WindowEvent evt)
{
try {
speechSynthesizer.deallocate();
} 
catch (Exception e) 
{
// TODO Auto-generated catch block
e.printStackTrace();
}
finally
{
System.exit(0);
}
}

public void getPhoneNumber(ActionEvent evt)
{
int i = cboName.getSelectedIndex();
String read = namesArray[i] + "'s phone Number is " + numbersArray[i];

speechSynthesizer.speakPlainText(read, null);
}

public static void main(String[] args)
{
new PhoneBook();
}
}

Answer 2

FreeTTS真是個好東西，謝謝介紹。