使用java的sql连接的驱动程序问题
我为用户制作了一个简单的表单,用于输入客户数据,它在文本字段中获取数据,并将其插入我运行的Microsoft SQL Server Management Studio 18数据库中。数据库正在我的计算机上运行。我的代码中的驱动程序部分有问题,它不断抛出异常。非常感谢您对我所做错事的任何帮助。这是我每次运行程序并点击提交按钮时收到的以下消息:抛出异常:com.microsoft.sqlserver.jdbc.SQLServerDriver java.lang.ClassNotFoundException:com.microsoft.sqlserver.jdbc.SQLServerDriver 问题的完整堆栈跟踪: 位于java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) 位于java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) 位于java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) 位于java.base/java.lang.Class.forName0(本机方法) 位于java.base/java.lang.Class.forName(Class.java:333) 在DBFE2.actionPerformed(DBFE2.java:119) 在java.desktop/javax.swing.AbstractButton.fireActionPerformed上(AbstractButton.java:1967) 位于java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308) 在java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed上(DefaultButtonModel.java:405) 在java.desktop/javax.swing.DefaultButtonModel.setPressed中(DefaultButtonModel.java:262) 在java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279) 位于java.desktop/java.awt.Component.ProcessMouseeEvent(Component.java:6636) 位于java.desktop/javax.swing.JComponent.ProcessMouseeEvent(JComponent.java:3342) 位于java.desktop/java.awt.Component.processEvent(Component.java:6401) 位于java.desktop/java.awt.Container.processEvent(Container.java:2263) 位于java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5012) 位于java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321) 位于java.desktop/java.awt.Component.dispatchEvent(Component.java:4844) 位于java.desktop/java.awt.LightweightDispatcher.RetargetMouseeEvent(Container.java:4918) 位于java.desktop/java.awt.LightweightDispatcher.ProcessMouseeEvent(Container.java:4547) 位于java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488) 位于java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307) 位于java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2762) 位于java.desktop/java.awt.Component.dispatchEvent(Component.java:4844) 位于java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772) 位于java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) 位于java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715) 位于java.base/java.security.AccessController.doPrivileged(AccessController.java:391) 位于java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) 位于java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95) 位于java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745) 位于java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743) 位于java.base/java.security.AccessController.doPrivileged(AccessController.java:391) 位于java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) 位于java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742) 位于java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) 位于java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) 位于java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) 位于java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) 位于java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) 位于java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)使用java的sql连接的驱动程序问题,java,sql,sql-server,Java,Sql,Sql Server,我为用户制作了一个简单的表单,用于输入客户数据,它在文本字段中获取数据,并将其插入我运行的Microsoft SQL Server Management Studio 18数据库中。数据库正在我的计算机上运行。我的代码中的驱动程序部分有问题,它不断抛出异常。非常感谢您对我所做错事的任何帮助。这是我每次运行程序并点击提交按钮时收到的以下消息:抛出异常:com.microsoft.sqlserver.jdbc.SQLServerDriver java.lang.ClassNotFoundExcept
你是说这是MSSQL。因此,您必须在构建路径中添加或将其添加为(如果是mvn项目)。这是否回答了您的问题。另外,请提供有关您收到的错误消息的更多详细信息。不,这没有帮助我下载了正确的连接器并将其安装到计算机上,以及更新我的java SDK,但这没有解决问题。带有JDBC驱动程序的jar文件需要是我正在使用netbeans 11.2。它没有像我觉得教程可以做。因此,我更改了projects pom.xml文件,添加了它所说的代码,我仍然收到相同的问题。我将它添加到xml文件中,解决了这个问题。感谢您的帮助,并对花了这么长时间才理解表示歉意。
package Assignments;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;//import all
import java.sql.*;//need this to make database connection
public class DataBaseFormExample extends JPanel implements ActionListener
{
private JLabel FirstNameLabel;
private JTextField FirstNameTextField;
private JLabel LastNameLabel;
private JTextField LastNameTextField;
private JLabel PhoneNumLabel;
private JTextField PhoneNumTextField;
private JLabel StreetAddressLabel;
private JTextField StreetAddressTextField;
private JLabel StateLabel;
private JTextField StateTextField;
private JLabel CityLabel;
private JTextField CityTextField;
private JLabel ZipLabel;
private JTextField ZipTextField;
private JLabel GenderLabel;
private JTextField GenderTextField;
private JLabel DOBLabel;
private JTextField DOBTextField;
private JLabel MaritalStatusLabel;
private JTextField MartialStatusTextField;
//constructor
public DataBaseFormExample()
{
//intializing components for form below
FirstNameLabel = new JLabel("Enter the first name of Customer below:");
FirstNameTextField = new JTextField("FirstName");
FirstNameTextField.setColumns(10);
LastNameLabel = new JLabel("Enter the first name of Customer below:");
LastNameTextField = new JTextField("LastName");
LastNameTextField.setColumns(10);
PhoneNumLabel = new JLabel("Enter the Phone Number of Customer below(EX:123-456-7890):");
PhoneNumTextField = new JTextField("123-456-7890");
PhoneNumTextField.setColumns(10);
StreetAddressLabel = new JLabel("Enter the street address of Customer below:");
StreetAddressTextField = new JTextField("123 easy street");
StreetAddressTextField.setColumns(10);
StateLabel = new JLabel("Enter the state of Customer below(EX:PA):");
StateTextField = new JTextField("PA");
StateTextField.setColumns(10);
CityLabel = new JLabel("Enter the city of Customer below(EX:Pittsburgh):");
CityTextField = new JTextField("Pittsburgh");
CityTextField.setColumns(10);
ZipLabel = new JLabel("Enter the zip of Customer below(EX:12345):");
ZipTextField = new JTextField("12345");
ZipTextField.setColumns(10);
GenderLabel = new JLabel("Enter the gender of Customer below(EX:M or F):");
GenderTextField = new JTextField("M");
GenderTextField.setColumns(10);
DOBLabel = new JLabel("Enter the DOB of Customer below(EX:12/03/5678):");
DOBTextField = new JTextField("12/34/2010");
DOBTextField.setColumns(10);
MaritalStatusLabel = new JLabel("Enter the martial status of Customer below(EX: Single / Married):");
MartialStatusTextField = new JTextField("Single");
MartialStatusTextField.setColumns(10);
JButton submitBTN = new JButton("Submit info");
submitBTN.addActionListener(this);
//add components to form
add(FirstNameLabel);
add(FirstNameTextField);
add(LastNameLabel);
add(LastNameTextField);
add(PhoneNumLabel);
add(PhoneNumTextField);
add(StreetAddressLabel);
add(StreetAddressTextField);
add(StateLabel);
add(StateTextField);
add(CityLabel);
add(CityTextField);
add(ZipLabel);
add(ZipTextField);
add(GenderLabel);
add(GenderTextField);
add(DOBLabel);
add(DOBTextField);
add(MaritalStatusLabel);
add(MartialStatusTextField);
add(submitBTN);
}
//driver method
public static void CreateAndShowContent()
{
//frame of calculator
JFrame window = new JFrame("Customer Information Input Form");
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//closes when we click the red x
DataBaseFormExample content = new DataBaseFormExample ();
content.setOpaque(true);
window.setContentPane(content);
//size it to fit components
window.setSize(500,330);
//show it
window.setVisible(true);
}
//insert when the button submit is pressed
public void actionPerformed(ActionEvent e)
{
try
{
//try inserting data to database
String JDBC_DRIVER = "org.gjt.mm.mysql.Driver";
String DB_URL = "jdbc:mysql://localhost/Giant_Snail_Grocery";
String UserName = "username";
String UserPass = "password";
Connection conn = null;
Statement statement = null;
Class.forName(JDBC_DRIVER);
System.out.println("Class.forName(driver) accepted....");
conn = DriverManager.getConnection(DB_URL,UserName,UserPass);
System.out.println("Connection Made....");
statement = conn.createStatement();
System.out.println("Statement object created from conn....");
//String sql = "INSERT INTO CUSTOMER " +"VALUES('Todd','Packer','724-345-9876','134 west end road','PA','Pittsburgh','12356','M','12/21/1995','married');";
String sql2 = "INSERT INTO CUSTOMER " + "VALUES("+ FirstNameTextField.getText() + " , " + LastNameTextField.getText() + ", " + PhoneNumTextField.getText() + ", " + StreetAddressTextField.getText() + ", " + StateTextField.getText() + ", " + CityTextField.getText() + ", " + ZipTextField.getText() + "," + GenderTextField.getText() + ", " + DOBTextField.getText() + ", " + MartialStatusTextField.getText() + ");";
statement.executeUpdate(sql2);
System.out.println("Insert successful to database....");
if(statement != null)
{
conn.close();
System.out.println("Connection closed to database....");
}
}
catch(Exception p)
{
//catch any exceptions
System.out.println("Exception thrown: " + p.getMessage());
}
}
//Main
public static void main(String[] args)
{
javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
CreateAndShowContent();
}
});
}
}