私はJavaスイング、JDBC、およびMySQLデータベースを使用して小さな在庫管理プロジェクトを作成しています。プロジェクト。私は3つのボタン、 "購入"、 "セール"と "クリア"を持っています。購入ボタンをクリックすると、商品名、価格、数量などを追加して「商品、購入」テーブルが更新されます。購入ボタンは正常に機能していますが、販売ボタンは機能していません。なぜこのエラーが発生するのですかcom.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 'sdate' 'フィールドリスト'で不明な列
これは私のプロジェクトビューである:
私は販売のボタンをクリックすると、それは私にこの例外を与える:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:不明'フィールドリスト'の列 'sdate' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(ネイティブメソッド) at sun.reflect.NativeConstructorAccessorImpl.newInstance(不明なソース)sun.reflect.DelegatingConstructorAccessorImpl.newInstance(不明なソース)で0 java.lang.reflect.Constructor.newInstanceで (不明なソース)
com.mysql.jdbc.Util.handleNewInstance(Util.java:404)で com.mysql.jdbc.Util.getInstance(Util.java:387) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:942) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java :3966) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2526) com.mysql.jdbc.MysqlIO.sqlQueryDirect (MysqlIO.java:2673) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java: 2549) com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1861) com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1192) com.mysql.jdbc.CallableStatement.execute( com.imp.Inventory $ 3.actionPerformed(Inventory.java:154)javax.swing.AbstractButtonで
でcom.imp.ProductController.SaveSale(ProductController.java:76) でCallableStatement.java:823) 。 fireActionPerformed(Unknown Source) (javax.swing.DefaultButtonModel.setPressed(Unknown))ソース) をjavax.swing.plaf.basic.BasicButtonListener.mouseReleased(不明なソース) をjava.awt.Component.processMouseEvent(不明なソース) をjavax.swing.JComponent.processMouseEvent(不明なソース) at java.awt javaのでjava.awt.Container.dispatchEventImpl(不明なソース) でjava.awt.Component.dispatchEventImpl(不明なソース) でjava.awt.Container.processEvent(不明なソース) で.Component.processEvent(不明なソース) .awt.Component.dispatchEvent(不明なソース) at java.awt.LightweightDispatcher.retargetMouseEvent(不明なソース) at java.awt.LightweightDispatcher.processMouseEvent(不明なソース) at java.awt.LightweightDispatcher .dispatchEvent(不明なソース) at java.awt.Container.dispatchEventImpl(不明なソース) at java.awt.Window.dispatchEventImpl(不明なソース) at java.awt.Component.dispatchEvent(不明なソース) at java.awt .EventQueue.dispatchEventImpl(不明なソース) at java。(未知のソース) at java.security.AccessController.doPrivileged(ネイティブメソッド) )java.awt.EventQueue $ 4.runですべてjava.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(不明なソース) ですべてjava.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(不明なソース) で (不明なソース) いるjava.awtで.EventQueue $ 4.run(不明なソース) java.security.AccessController.doPrivileged(ネイティブメソッド) java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(不明なソース) at java.awt.EventQueue.dispatchEv java.awtでのENT(不明なソース)java.awt.EventDispatchThread.pumpOneEventForFiltersで (不明なソース)java.awt.EventDispatchThread.pumpEventsForFilterで (不明なソース)java.awt.EventDispatchThread.pumpEventsForHierarchyで (不明なソース) 。 EventDispatchThread.pumpEvents(不明なソース)java.awt.EventDispatchThread.pumpEventsで (不明なソース)java.awt.EventDispatchThread.runで (不明なソース)
どのように私はこの問題を解決することができますか?
IMP/SRC/COM/IMP/DAO/DatabaseConnectionHelper.java
package com.imp.dao;
import java.sql.Connection;
import java.sql.DriverManager;
public class DatabaseConnectionHelper {
public static void main(String[] args) throws Exception {
getConnection();
}
public static Connection getConnection() throws Exception {
try {
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/imp";
String username = "root";
String password = "password";
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, username, password);
System.out.println("Database Connected");
return conn;
}
catch (Exception e) {
System.out.println(e);
}
return null;
}
}
/IMP/src/com/imp/ProductController.java
package com.imp;
import java.awt.List;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import com.imp.dao.DatabaseConnectionHelper;
import com.mysql.jdbc.CallableStatement;
public class ProductController {
public static boolean SavePname (String pname) throws SQLException {
Connection myConn = null;
CallableStatement myCsmt = null;
boolean check = true;
try {
myConn = DatabaseConnectionHelper.getConnection();
myCsmt = (CallableStatement) myConn.prepareCall("{ CALL save_product(?) }");
myCsmt.setString(1, pname);
check = myCsmt.execute();
}
catch (Exception exp) {
exp.printStackTrace();
}
finally{
Close (myConn, myCsmt);
}
return check;
}
public static boolean SavePurchase (String pname, String price, String pdate, String qty) throws SQLException {
Connection myConn = null;
CallableStatement myCsmt = null;
boolean check = true;
try {
myConn = DatabaseConnectionHelper.getConnection();
myCsmt = (CallableStatement) myConn.prepareCall("{ CALL save_purchase(getProductid(?), ?, ?, ?) }");
myCsmt.setString(1, pname);
myCsmt.setString(2, price);
myCsmt.setString(3, pdate);
myCsmt.setString(4, qty);
check = myCsmt.execute();
}
catch (Exception exp) {
exp.printStackTrace();
}
finally{
Close (myConn, myCsmt);
}
return check;
}
public static boolean SaveSale (String pname, String price, String Sdate, String qty) throws SQLException {
Connection myConn = null;
CallableStatement myCsmt = null;
boolean check = true;
try {
myConn = DatabaseConnectionHelper.getConnection();
myCsmt = (CallableStatement) myConn.prepareCall("{ CALL save_sale(getProductid(?), ?, ?, ?) }");
myCsmt.setString(1, pname);
myCsmt.setString(2, price);
myCsmt.setString(3, Sdate);
myCsmt.setString(4, qty);
check = myCsmt.execute();
}
catch (Exception exp) {
exp.printStackTrace();
}
finally{
Close (myConn, myCsmt);
}
return check;
}
public static void LoadComboBox (JComboBox combo) throws SQLException {
Connection myConn = null;
CallableStatement myCsmt = null;
ResultSet myRs = null;
try {
myConn = DatabaseConnectionHelper.getConnection();
myCsmt = (CallableStatement) myConn.prepareCall("{ CALL listProduct() }");
myCsmt.execute();
myRs = myCsmt.getResultSet();
ArrayList pList = new ArrayList();
while (myRs.next()) {
pList.add(myRs.getString(1));
}
combo.setModel(new DefaultComboBoxModel(pList.toArray()));
combo.insertItemAt("Select one", 0);
combo.setSelectedIndex(0);
}
catch (Exception exp) {
exp.printStackTrace();
}
finally{
Close (myConn, myCsmt, myRs);
}
}
private static void Close(Connection myConn, CallableStatement myStmt)
throws SQLException {
if (myStmt != null) {
myStmt.close();
}
if (myConn != null) {
myConn.close();
}
}
private static void Close(Connection myConn, CallableStatement myStmt, ResultSet myRs)
throws SQLException {
if (myStmt != null) {
myStmt.close();
}
if (myConn != null) {
myConn.close();
}
if (myRs != null) {
myRs.close();
}
}
}
:ここ
は、私のソースコードです
/IMP/src/com/imp/Inventory.java(これは私のFrameファイルである)
package com.imp;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.SQLType;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import com.mysql.jdbc.CallableStatement;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JComboBox;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.ItemListener;
import java.awt.event.ItemEvent;
import com.imp.dao.DatabaseConnectionHelper;
public class Inventory extends JFrame {
private JPanel contentPane;
private JTextField PriceTextField;
private JTextField QtyTextField;
private JTextField DateTextField;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Inventory frame = new Inventory();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
* @throws SQLException
*/
public Inventory() throws SQLException {
setTitle("Inventory Management System");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 469, 356);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
JLabel lblProductName = new JLabel("Product Name:");
JComboBox comboBox = new JComboBox();
comboBox.setEditable(true);
JLabel lblNewLabel = new JLabel("Available Quantity:");
JLabel lblNewLabel_1 = new JLabel("AVG Purchase Price:");
JLabel lblNewLabel_2 = new JLabel("Price:");
JLabel lblNewLabel_3 = new JLabel("Quantity:");
JLabel lblNewLabel_4 = new JLabel("Date:");
JLabel lbQty = new JLabel("");
JLabel lbPrice = new JLabel("");
PriceTextField = new JTextField();
PriceTextField.setColumns(10);
QtyTextField = new JTextField();
QtyTextField.setColumns(10);
DateTextField = new JTextField();
DateTextField.setColumns(10);
JButton btnPurchase = new JButton("Purchase");
btnPurchase.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
boolean check = false;
if (comboBox.getSelectedIndex() < 0){
try {
ProductController.SavePname(comboBox.getSelectedItem().toString());
}
catch (SQLException e) {
e.printStackTrace();
}
}
try {
check = ProductController.SavePurchase(comboBox.getSelectedItem().toString(),
PriceTextField.getText(), DateTextField.getText(), QtyTextField.getText());
}
catch (SQLException e) {
e.printStackTrace();
}
if (!check){
JOptionPane.showMessageDialog(rootPane, "Purchase Save SuccessFully.....!!....");
// By this method we can load all product from our database
try {
ProductController.LoadComboBox(comboBox);
Clear();
}
catch (SQLException e) {
e.printStackTrace();
}
}
}
private void Clear() {
comboBox.setSelectedIndex(0);
lbQty.setText("");
lbPrice.setText("");
PriceTextField.setText("");
QtyTextField.setText("");
DateTextField.setText("");
}
});
JButton btnSale = new JButton("Sale");
btnSale.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
boolean check = false;
if (comboBox.getSelectedIndex() < 0){
try {
ProductController.SavePname(comboBox.getSelectedItem().toString());
}
catch (SQLException e) {
e.printStackTrace();
}
}
try {
check = ProductController.SaveSale(comboBox.getSelectedItem().toString(),
PriceTextField.getText(), DateTextField.getText(), QtyTextField.getText());
}
catch (SQLException e) {
e.printStackTrace();
}
if (!check){
JOptionPane.showMessageDialog(rootPane, "Sale Save SuccessFully.....!!....");
// By this method we can load all product from our database
try {
ProductController.LoadComboBox(comboBox);
Clear();
}
catch (SQLException e) {
e.printStackTrace();
}
}
}
private void Clear() {
comboBox.setSelectedIndex(0);
lbQty.setText("");
lbPrice.setText("");
PriceTextField.setText("");
QtyTextField.setText("");
DateTextField.setText("");
}
});
comboBox.addItemListener(new ItemListener() {
@SuppressWarnings({ "null", "resource" })
public void itemStateChanged(ItemEvent arg0) {
if (comboBox.getSelectedIndex() > 0) {
Connection myConn = null;
CallableStatement myCsmt = null;
ResultSet myRs = null;
try {
myConn = DatabaseConnectionHelper.getConnection();
myCsmt = (CallableStatement) myConn.prepareCall("{?= call getProductQty(?)}");
myCsmt.registerOutParameter(1, java.sql.Types.INTEGER);
myCsmt.setString(2, comboBox.getSelectedItem().toString());
myCsmt.execute();
int output = myCsmt.getInt(1);
//JLabel lbQty = null;
//JLabel lbPrice = null;
lbQty.setText(String.valueOf(output));
//
myCsmt = (CallableStatement) myConn.prepareCall("{CALL avg_price(getProductid(?))}");
myCsmt.setString(1, comboBox.getSelectedItem().toString());
myCsmt.execute();
myRs = myCsmt.getResultSet();
while (myRs.next()) {
lbPrice.setText(myRs.getString(1));
}
}
catch (Exception e) {
e.printStackTrace();
}
finally{
try {
myConn.close();
myCsmt.close();
myRs.close();
}
catch (SQLException e) {
e.printStackTrace();
}
}
}
}
});
JButton btnClear = new JButton("Clear");
GroupLayout gl_contentPane = new GroupLayout(contentPane);
gl_contentPane.setHorizontalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addContainerGap()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addComponent(lblProductName)
.addComponent(lblNewLabel)
.addComponent(lblNewLabel_1)
.addComponent(lblNewLabel_2)
.addComponent(lblNewLabel_3)
.addComponent(lblNewLabel_4)
.addComponent(btnPurchase))
.addGap(57)
.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
.addComponent(lbPrice, GroupLayout.DEFAULT_SIZE, 241, Short.MAX_VALUE)
.addComponent(lbQty, GroupLayout.DEFAULT_SIZE, 241, Short.MAX_VALUE)
.addComponent(DateTextField, 241, 241, 241)
.addComponent(QtyTextField, 241, 241, 241)
.addComponent(PriceTextField, 241, 241, 241)
.addComponent(comboBox, 0, 241, Short.MAX_VALUE)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(25)
.addComponent(btnSale)
.addPreferredGap(ComponentPlacement.RELATED, 106, Short.MAX_VALUE)
.addComponent(btnClear)))
.addContainerGap(144, Short.MAX_VALUE))
);
gl_contentPane.setVerticalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addContainerGap()
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblProductName)
.addComponent(comboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addPreferredGap(ComponentPlacement.UNRELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel)
.addComponent(lbQty, GroupLayout.PREFERRED_SIZE, 21, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_1)
.addComponent(lbPrice, GroupLayout.PREFERRED_SIZE, 21, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_2)
.addComponent(PriceTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_3)
.addComponent(QtyTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
.addComponent(lblNewLabel_4)
.addComponent(DateTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addPreferredGap(ComponentPlacement.RELATED, 50, Short.MAX_VALUE)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(btnPurchase)
.addComponent(btnClear)
.addComponent(btnSale))
.addGap(48))
);
contentPane.setLayout(gl_contentPane);
// By this method we can load all product from our database
ProductController.LoadComboBox(comboBox);
}
}
がここに私でありますsave_saleストアドプロシージャ構造
タイプはsdateを使用していますが、 – scaisEdge
@scaisEdgeの 'sale'テーブルには' sdate 'があります。 –
コードの量を減らし、このエラーを再現するのに必要な最小値(ストアドプロシージャDDLを含む)のみを表示する必要があります。限り、あなたのストアドプロシージャ( 'save_sale')の1つに、その名前のカラムを持たないテーブルの' sdate'カラムを参照することができます。 –