自定义java.awt.Canvas—趣味聊天

来源：互联网发布：下载app软件编辑：程序博客网时间：2024/05/21 22:53

最近用java模拟“会说话的汤姆猫”做了一个超级简陋的小程序。重点研究了一下JFrame(javax.swing.JFram)、SequentialGroup(javax.swing.GroupLayout.SequentialGroup)、ParallelGroup(javax.swing.GroupLayout. ParallelGroup)、Canvas(java.awt.Canvas)、Graphics(java.awt.Graphics)的使用。

程序效果如下：欢迎大家下载这个小程序的可运行jar包！趣味聊天demo.jar

可以在问题框中输入任意问题与小猫对话。当输入问题时，小猫会做出聆听状态。

点击发送后，小猫做回答状态。对于各种问题的答案，这里调用的是欧拉蜜智能语音api，详情可参考http://cn.olami.ai

主要代码如下：

1、界面MyJFrame：

import java.awt.Canvas;import java.awt.Color;import java.awt.FlowLayout;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.Image;import java.awt.Toolkit;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import java.net.URL;import javax.swing.GroupLayout.Alignment;import javax.swing.GroupLayout;import javax.swing.JButton;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextField;import com.alibaba.fastjson.JSONObject;public class MyJFrame extends javax.swing.JFrame {    private static final long serialVersionUID = 1L;    private NLIProcess nlp = new NLIProcess();    private JButton jButton_send;    private JLabel jLabel1;    private JLabel jLabel2;    private JPanel jPanel1;    private JPanel jPanel2;    private JTextField jTextField1;    private JTextField jTextField2;    private Image act1;    private Image act2;    // 初始图像编号    int actPhase = 1;       Canvas c = null;    public MyJFrame() {        getImage();             initComponents();    }    private void getImage(){        setBackground(Color.BLACK);        URL imageUrl = getClass().getResource("image/img0.png");        act1 = Toolkit.getDefaultToolkit().createImage(imageUrl);        imageUrl = getClass().getResource("image/img3.png");        act2 = Toolkit.getDefaultToolkit().createImage(imageUrl);    }       private void initComponents() {        jPanel1 = new JPanel();        jLabel1 = new JLabel();        jLabel2 = new JLabel();        jTextField1 = new JTextField();        jTextField2 = new JTextField();        jButton_send = new JButton();        jPanel2 = new JPanel();        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);        setMinimumSize(new java.awt.Dimension(400, 300));        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("智能问答"));        jLabel1.setText("问题：");        jLabel2.setText("回答：");        jTextField1.setText("你多大了？");        jTextField2.setEnabled(false);        jButton_send.setText("send");        jButton_send.addActionListener(new java.awt.event.ActionListener() {            public void actionPerformed(java.awt.event.ActionEvent evt) {                jButton_sendActionPerformed(evt);            }        });        jTextField1.addFocusListener(new FocusListener(){            @Override            public void focusGained(FocusEvent arg0) {                // TODO Auto-generated method stub                actPhase = 2;                c.repaint();            }            @Override            public void focusLost(FocusEvent arg0) {                // TODO Auto-generated method stub                actPhase = 1;                c.repaint();            }        });        GroupLayout jPanel1Layout = new GroupLayout(jPanel1);        GroupLayout.SequentialGroup hGroup = jPanel1Layout.createSequentialGroup();        hGroup.addGap(8);        hGroup.addGroup(jPanel1Layout.createParallelGroup(Alignment.LEADING).addComponent(jLabel1)                .addComponent(jLabel2));        hGroup.addGap(5);        hGroup.addGroup(jPanel1Layout.createParallelGroup(Alignment.LEADING).addComponent(jTextField1)                .addComponent(jTextField2));        hGroup.addGap(5);        hGroup.addGroup(jPanel1Layout.createParallelGroup(Alignment.LEADING).addComponent(jButton_send));        hGroup.addGap(8);        jPanel1Layout.setHorizontalGroup(hGroup);        GroupLayout.SequentialGroup vGroup = jPanel1Layout.createSequentialGroup();        vGroup.addGap(8);        vGroup.addGroup(jPanel1Layout.createParallelGroup(Alignment.LEADING).addComponent(jLabel1)                .addComponent(jTextField1).addComponent(jButton_send));        vGroup.addGap(3);        vGroup.addGroup(jPanel1Layout.createParallelGroup(Alignment.LEADING).addComponent(jLabel2)                .addComponent(jTextField2));        vGroup.addGap(8);        //设置垂直组        jPanel1Layout.setVerticalGroup(vGroup);        jPanel1.setLayout(jPanel1Layout);        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("可爱小猫"));        jPanel2.setLayout(new FlowLayout());                  c = new MyCanvas();        jPanel2.add(c);               GroupLayout layout = new GroupLayout(getContentPane());        getContentPane().setLayout(layout);        layout.setHorizontalGroup(            layout.createParallelGroup(GroupLayout.Alignment.LEADING)            .addGroup(GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()                .addContainerGap()                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.TRAILING)                    .addComponent(jPanel2, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)                    .addComponent(jPanel1, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))                .addContainerGap())        );        layout.setVerticalGroup(            layout.createParallelGroup(GroupLayout.Alignment.LEADING)            .addGroup(layout.createSequentialGroup()                .addContainerGap()                .addComponent(jPanel1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)                .addComponent(jPanel2, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)                .addContainerGap())        );        pack();    }     private void jButton_sendActionPerformed(java.awt.event.ActionEvent evt) {        // TODO add your handling code here:        JSONObject result = nlp.process(jTextField1.getText());        jTextField2.setText(nlp.getAnswer(result));    }    public static void main(String args[]) {        java.awt.EventQueue.invokeLater(new Runnable() {            public void run() {                MyJFrame frame = new MyJFrame();                frame.setTitle("自然语言理解试验小程序——趣味聊天");                frame.setLocationRelativeTo(null);                frame.setVisible(true);            }        });    }    class MyCanvas extends Canvas {        private static final long serialVersionUID = 1L;        public MyCanvas () {            setBackground (Color.GRAY);            setSize(300, 320);         }        public void paint (Graphics g) {           Graphics2D g2;           g2 = (Graphics2D) g;           update(g2);        }        public void update(Graphics g) {            if (actPhase == 1) {                g                        .drawImage(act1, getWidth() / 2                                - act1.getWidth(null) / 2, getHeight() / 2                                - act1.getHeight(null) / 2, act1                                .getWidth(null), act1.getHeight(null), this);            } else {                g                        .drawImage(act2, getWidth() / 2                                - act2.getWidth(null) / 2, getHeight() / 2                                - act2.getHeight(null) / 2, act2                                .getWidth(null), act2.getHeight(null), this);            }        }     }}

2、语义理解NLIProcess：

import java.io.UnsupportedEncodingException;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;import java.util.ArrayList;import java.util.Calendar;import java.util.List;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import com.alibaba.fastjson.JSONArray;import com.alibaba.fastjson.JSONException;import com.alibaba.fastjson.JSONObject;public class NLIProcess {    private static final String url = "https://cn.olami.ai/cloudservice/api";    private static final String Appkey = "beaf1c8e85894e1c90b333670d479581";    private static final String Appsecret = "52b158f9c8b741218dcf3931136611b6";    private static final String api = "nli";        public String getAnswer(JSONObject semantic) {        String error = "你刚才说什么，我没有听懂。";        if (semantic == null || !"ok".equalsIgnoreCase(semantic.getString("status")))             return error;        JSONObject data = semantic.getJSONObject("data");        JSONArray s_list = data.getJSONArray("nli");        JSONObject s_first = s_list.getJSONObject(0);        JSONObject desc_obj = s_first.getJSONObject("desc_obj");        int status = desc_obj.getIntValue("status");        if (0 == status) {            return desc_obj.getString("result");        }        return error;    }    public JSONObject process (String input) {        JSONObject NLIresult = new JSONObject();        List<NameValuePair> params = new ArrayList<NameValuePair>();        params.add(new BasicNameValuePair("appkey", Appkey));        params.add(new BasicNameValuePair("api", api));        long timestamp = Calendar.getInstance().getTimeInMillis();        params.add(new BasicNameValuePair("timestamp", String.valueOf(timestamp)));        params.add(new BasicNameValuePair("sign", generateSign(timestamp)));        JSONObject request = new JSONObject();        JSONObject data = new JSONObject();        try {            data.put("input_type", 0);            data.put("text", input);            request.put("data_type", "stt");            request.put("data", data);        } catch (JSONException e1) {            e1.printStackTrace();            return NLIresult;        }        params.add(new BasicNameValuePair("rq", request.toString()));        params.add(new BasicNameValuePair("cusid", "asdfghj"));        CloseableHttpClient httpclient = HttpClients.createDefault();        HttpPost httppost = new HttpPost(url);        try {            httppost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));            CloseableHttpResponse response = httpclient.execute(httppost);            try {                HttpEntity entity = response.getEntity();                if (entity != null) {                    String contnt = EntityUtils.toString(entity);                    NLIresult = JSONObject.parseObject(contnt);                }            } finally {                response.close();            }        } catch (Exception e) {            e.printStackTrace();            return NLIresult;        } finally {            try {                httpclient.close();            } catch (Exception e) {                e.printStackTrace();            }        }        return NLIresult;    }    private String generateSign(long timestamp) {        String sign = Appsecret + "api=" + api + "appkey=" + Appkey + "timestamp=" + timestamp + Appsecret;        return MD5String(sign);    }    public String MD5String(String str) {        try {            MessageDigest msgDigest = MessageDigest.getInstance("MD5");            msgDigest.reset();            msgDigest.update(str.getBytes("UTF-8"));            byte[] byteArrary = msgDigest.digest();            StringBuffer md5StrBuff = new StringBuffer();            for (int i = 0; i < byteArrary.length; i++) {                String tmp = Integer.toHexString(0xFF & byteArrary[i]);                if (tmp.length() == 1) {                    md5StrBuff.append(0).append(tmp);                } else {                    md5StrBuff.append(tmp);                }            }            return md5StrBuff.toString();        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();            return null;        } catch (UnsupportedEncodingException e) {            e.printStackTrace();            return null;        }    }   }