我的Java应用程序有一些错误

我的Java应用程序有一些错误，我不知道哪里是我的错误代码

我的错误是：

        org.h2.jdbc.JdbcSQLException: Data conversion error converting "audi"; SQL statement:
    select id, engine, regnum, crashed from cars where model=? [22018-193]
        at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
        at org.h2.message.DbException.get(DbException.java:168)
        at org.h2.value.Value.convertTo(Value.java:972)
        at org.h2.expression.Comparison.getValue(Comparison.java:255)
        at org.h2.expression.Expression.getBooleanValue(Expression.java:178)
        at org.h2.command.dml.Select.queryFlat(Select.java:544)
        at org.h2.command.dml.Select.queryWithoutCache(Select.java:655)
        at org.h2.command.dml.Query.query(Query.java:341)
        at org.h2.command.dml.Query.query(Query.java:309)
        at org.h2.command.dml.Query.query(Query.java:36)
        at org.h2.command.CommandContainer.query(CommandContainer.java:110)
        at org.h2.command.Command.executeQuery(Command.java:201)
        at org.h2.server.TcpServerThread.process(TcpServerThread.java:319)
        at org.h2.server.TcpServerThread.run(TcpServerThread.java:158)
        at java.lang.Thread.run(Unknown Source)
    Caused by: java.lang.NumberFormatException: For input string: "audi"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at org.h2.value.Value.convertTo(Value.java:920)
        ... 12 more

        at org.h2.engine.SessionRemote.done(SessionRemote.java:624)
        at org.h2.command.CommandRemote.executeQuery(CommandRemote.java:158)
        at org.h2.jdbc.JdbcPreparedStatement.executeQuery(JdbcPreparedStatement.java:110)
        at MyFrame$SearchAction.actionPerformed(MyFrame.java:177)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
        at java.awt.Container.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue.access$500(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue$4.run(Unknown Source)
        at java.awt.EventQueue$4.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

我的源代码是：

import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;


public class MyFrame extends JFrame{

    Connection conn = null;
    Connection conn1 = null;
    PreparedStatement state = null;
    PreparedStatement state1 = null;
    ResultSet result = null;
    ResultSet result1 = null;
    MyModel myModel = null;
    MyModel myModel1 = null;

    JPanel topPanel = new JPanel();
    JPanel midPanel = new JPanel();
    JPanel downPanel = new JPanel();

    JPanel midPanelUp = new JPanel();
    JPanel midPanelDown = new JPanel();

    JLabel modelLabel = new JLabel("Model: ");
    JLabel yearLabel = new JLabel("Year: ");
    JLabel engineLabel = new JLabel("Engine: ");
    JLabel crashedLabel = new JLabel("Is crashed: ");
    JLabel regNumLabel = new JLabel("Reg Number: ");

    JTextField modelField = new JTextField();
    JTextField yearField = new JTextField();
    JTextField engineField = new JTextField();
    JTextField regNumField = new JTextField();
    JTextField searchText = new JTextField(10);

    String[] content = {"No", "Yes"};
    JComboBox<String> crashedCombo = new JComboBox<String>(content);
    String[] searchContent = {"Model", "Year","Mix"};
    JComboBox<String> searchCombo = new JComboBox<String>(searchContent);

    JButton addButton = new JButton("Add");
    JButton removeButton = new JButton("Remove");
    JButton updateButton = new JButton("Update");
    JButton searchButton = new JButton("Search");

    JTable table = new JTable();
    JScrollPane scroller = new JScrollPane(table);

    public MyFrame(){

        this.setVisible(true);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(400, 600);
        this.setLocation(700, 400); 
        this.setLayout(new GridLayout(3,1));

        this.add(topPanel);
        this.add(midPanel);
        this.add(downPanel);

        //topPanel
        topPanel.setLayout(new GridLayout(5, 2));
        topPanel.add(modelLabel);
        topPanel.add(modelField);
        topPanel.add(yearLabel);
        topPanel.add(yearField);
        topPanel.add(engineLabel);
        topPanel.add(engineField);
        topPanel.add(regNumLabel);
        topPanel.add(regNumField);
        topPanel.add(crashedLabel);
        topPanel.add(crashedCombo);
        //end topPanel

        //midPanel
        midPanel.setLayout(new GridLayout(2, 1));
        midPanel.add(midPanelUp);
        midPanel.add(midPanelDown);

        midPanelUp.add(removeButton);
        removeButton.addActionListener(new RemoveAction());
        midPanelUp.add(updateButton);
        updateButton.addActionListener(new UpdateAction());
        midPanelUp.add(addButton);
        addButton.addActionListener(new AddAction());
        midPanelDown.add(searchButton);
        midPanelDown.add(searchCombo);
        midPanelDown.add(searchText);
        searchButton.addActionListener(new SearchAction());
        //end midPanel

        //downPanel
        scroller.setPreferredSize(new Dimension(350, 150));
        downPanel.add(scroller);
        getAllFromDB();

        //end downPanel

    }

    public class SearchAction implements ActionListener {

        @Override
        public void actionPerformed(ActionEvent e) {

            String model = null;
            int year = 1908;
            String critiria = "model";

            switch(searchCombo.getSelectedIndex()){
            case 0: model = searchText.getText();
                break;

            case 1: year = Integer.parseInt(searchText.getText());
                critiria = "year";
                break;

            case 2: model = modelField.getText();
                    year = Integer.parseInt(yearField.getText());
            break; 
            }

            conn = UtilDB.getConnected();
            conn1 = UtilDB.getConnected();
            String sql = "select id, engine, regnum, crashed " + "from cars " + "where " + critiria + "=?";
            String sqlMix = "select id, model, engine, regnum, crashed " + "from cars " + "where model like ? AND year >= ?";
            try {
                state1 = conn1.prepareStatement(sqlMix);
            } catch (SQLException e2) {
                // TODO Auto-generated catch block
                e2.printStackTrace();
            }
            if (searchCombo.getSelectedIndex() == 2){
                try {

                    state1.setString(1, model + "%");
                    state1.setInt(2, year);
                    result1 = state1.executeQuery();
                    myModel1 = new MyModel(result1);
                    table.setModel(myModel1);
                } catch (SQLException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                } catch (Exception e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }

            }
            try {
                state = conn.prepareStatement(sql);
                if (searchCombo.getSelectedIndex() == 0){

                    state.setString(1, model);
                }
                else{
                    state.setInt(1, year);
                }

                result = state.executeQuery();
                myModel = new MyModel(result);
                table.setModel(myModel);
            } catch (SQLException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            } catch (Exception e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }

        }

    }

    public class UpdateAction implements ActionListener {

        @Override
        public void actionPerformed(ActionEvent e) {
            // TODO Auto-generated method stub
            String model = modelField.getText();
            String regNum = regNumField.getText();
            conn = UtilDB.getConnected();
            String sql = "update cars set model = ? where regnum = ?";
            try {
                state = conn.prepareStatement(sql);
                state.setString(1, model);
                state.setString(2, regNum);
                state.execute();
            }  catch (SQLException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            } finally {
                try {
                    conn.close();
                } catch (SQLException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
            }
            getAllFromDB();
        }

    }

    public class RemoveAction implements ActionListener {

        @Override
        public void actionPerformed(ActionEvent e) {

            String regNum = regNumField.getText();
            clearFields();
            conn = UtilDB.getConnected();
            String sql = "delete from cars where regnum = ?";
            try {
                state = conn.prepareStatement(sql);
                state.setString(1, regNum);
                state.execute();
            } catch (SQLException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }finally{
                try {
                    conn.close();
                } catch (SQLException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
            }
            getAllFromDB();
        }

    }

    public class AddAction implements ActionListener {

        @Override
        public void actionPerformed(ActionEvent e) {

            String model = modelField.getText();
            int year = Integer.parseInt(yearField.getText());
            float engine = Float.parseFloat(engineField.getText()); 
            String regNum = regNumField.getText();
            boolean isCrashed = false;

            if (crashedCombo.getSelectedIndex() == 1) {
                isCrashed = true;
            }
            clearFields();

            conn = UtilDB.getConnected();
            String sql = "insert into cars values(null, ?, ?, ?, ?, ?)";
            try {
                state = conn.prepareStatement(sql);
                state.setString(1, model);
                state.setInt(2, year);
                state.setFloat(3, engine);
                state.setString(4, regNum);
                state.setBoolean(5, isCrashed);
                state.execute();
            } catch (SQLException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }finally{
                try {
                    conn.close();
                } catch (SQLException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
            }
            getAllFromDB();
        }// end actionPerformed     
    }// end class
public void clearFields() {

    modelField.setText("");
    yearField.setText("");
    engineField.setText("");
    regNumField.setText("");
    crashedCombo.setSelectedIndex(0);
  }

public void getAllFromDB(){

        conn = UtilDB.getConnected();
        String sql = "select * from cars";
        try {
            state = conn.prepareStatement(sql);
            result = state.executeQuery();
            myModel = new MyModel(result);
            table.setModel(myModel);

        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            try {
                conn.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

    }
}// end MyFrame class

导入java.awt.Dimension；
导入java.awt.FlowLayout；
导入java.awt.GridLayout；
导入java.awt.Toolkit；
导入java.awt.event.ActionEvent；
导入java.awt.event.ActionListener；
导入java.sql.Connection；
导入java.sql.PreparedStatement；
导入java.sql.ResultSet；
导入java.sql.SQLException；
导入javax.swing.ImageIcon；
导入javax.swing.JButton；
导入javax.swing.JComboBox；
导入javax.swing.JFrame；
导入javax.swing.JLabel；
导入javax.swing.JPanel；
导入javax.swing.JScrollPane；
导入javax.swing.JTable；
导入javax.swing.JTextField；
公共类MyFrame扩展了JFrame{
连接conn=null；
连接conn1=null；
PreparedStatement状态=null；
PreparedStatement state1=null；
ResultSet result=null；
结果集result1=null；
MyModel MyModel=null；
MyModel myModel1=null；
JPanel-topPanel=新的JPanel（）；
JPanel midPanel=新的JPanel（）；
JPanel下面板=新的JPanel（）；
JPanel midPanelUp=新的JPanel（）；
JPanel midPanelDown=新的JPanel（）；
JLabel modelLabel=新的JLabel（“模型：”）；
JLabel yearLabel=新的JLabel（“年份”）；
JLabel engineLabel=新的JLabel（“引擎：”）；
JLabel crashedlab=新JLabel（“已崩溃”）；
JLabel regNumLabel=新JLabel（“注册号：”）；
JTextField modelField=新的JTextField（）；
JTextField yearField=新的JTextField（）；
JTextField engineField=新的JTextField（）；
JTextField regNumField=新的JTextField（）；
JTextField searchText=新的JTextField（10）；
字符串[]内容={“否”，“是”}；
JComboBox crashedCombo=新的JComboBox（内容）；
字符串[]searchContent={“Model”，“Year”，“Mix”}；
JComboBox searchCombo=新的JComboBox（searchContent）；
JButton addButton=新JButton（“添加”）；
JButton removeButton=新JButton（“删除”）；
JButton updateButton=新JButton（“更新”）；
JButton searchButton=新JButton（“搜索”）；
JTable table=新的JTable（）；
JScrollPane scroller=新的JScrollPane（表）；
公共MyFrame（）{
此.setVisible（true）；
此.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）；
这个。设置大小（400600）；
此设置位置（700400）；
这个.setLayout（新的GridLayout（3,1））；
添加（托帕内尔）；
添加（中间面板）；
添加（下面板）；
//托帕内尔
topPanel.setLayout（新网格布局（5,2））；
topPanel.add（型号标签）；
topPanel.add（模型字段）；
topPanel.add（年标）；
topPanel.add（yearField）；
topPanel.add（引擎标签）；
topPanel.add（引擎字段）；
topPanel.add（regNumLabel）；
topPanel.add（regNumField）；
topPanel.add（碰撞标签）；
添加（crashedCombo）；
//端托帕内尔
//中间板
设置布局（新的网格布局（2,1））；
midPanel.add（midPanelUp）；
midPanel.add（midPanelDown）；
添加（删除按钮）；
addActionListener（新的RemoveAction（））；
添加（updateButton）；
addActionListener（新的UpdateAction（））；
添加（添加按钮）；
addButton.addActionListener（新的AddAction（））；
添加（搜索按钮）；
添加（searchCombo）；
添加（搜索文本）；
addActionListener（新的SearchAction（））；
//端部中间板
//下面板
scroller.setPreferredSize（新尺寸（350150））；
添加（滚动条）；
getAllFromDB（）；
//端部下面板
}
公共类SearchAction实现ActionListener{
@凌驾
已执行的公共无效操作（操作事件e）{
字符串模型=null；
国际年=1908年；
字符串critiria=“model”；
开关（searchCombo.getSelectedIndex（））{
案例0:model=searchText.getText（）；
打破
案例1:year=Integer.parseInt（searchText.getText（））；
critiria=“年”；
打破
案例2:model=modelField.getText（）；
year=Integer.parseInt（yearField.getText（））；
打破
}
conn=UtilDB.getConnected（）；
conn1=UtilDB.getConnected（）；
String sql=“选择id、引擎、regnum、来自汽车的碰撞”+“其中”+critiria+“=？”；
String sqlMix=“选择id、model、engine、regnum、crash”+“from cars”+“where model like？”和year>=？”；
试一试{
state1=conn1.prepareStatement（sqlMix）；
}捕获（SQLException e2）{
//TODO自动生成的捕捉块
e2.printStackTrace（）；
}
if（searchCombo.getSelectedIndex（）==2）{
试一试{
状态1.设置字符串（1，型号+“%”）；
状态1.setInt（2年）；
result1=state1.executeQuery（）；
myModel1=新的MyModel（结果1）；
表2.setModel（myModel1）；
}捕获（SQLException e1）{
//TODO自动生成的捕捉块
e1.printStackTrace（）；
}捕获（异常e1）{
//TODO自动生成的捕捉块
e1.printStackTrace（）；
}
}
试一试{
state=conn.prepareStatement（sql）；
if（searchCombo.getSelectedIndex（）==0）{
state.setString（1，型号）；
}
否则{
state.setInt（1年）；
}
结果=state.executeQuery（）；
myModel=新的myModel（结果）；
表2.setModel（myModel）；
}捕获（SQLException e1）{
//TODO自动生成的cat
case 1: year = Integer.parseInt(searchText.getText());
       critiria = "year";
       break;

        switch(searchCombo.getSelectedIndex()){
            case 0: model = searchText.getText();
                break;

            case 1: year = Integer.parseInt(searchText.getText());
                critiria = "year";
                break;

            case 2: model = modelField.getText();
                    year = Integer.parseInt(yearField.getText());
            break;