Java I';即使我';我试过SQL中的代码
我遇到了一个非常奇怪的错误,当我运行连接到SQL的程序时,出现了一个错误,上面写着java.SQL.SQLSyntaxErrorException:语法错误:在第1行第40列遇到了“WHERE” 另一个SQL连接中的代码工作得很好,但这一个的行为非常不同,我在下面分离了不工作的SQL连接 请帮我解决这个问题,它已经伤了我的头两天了Java I';即使我';我试过SQL中的代码,java,mysql,sql,Java,Mysql,Sql,我遇到了一个非常奇怪的错误,当我运行连接到SQL的程序时,出现了一个错误,上面写着java.SQL.SQLSyntaxErrorException:语法错误:在第1行第40列遇到了“WHERE” 另一个SQL连接中的代码工作得很好,但这一个的行为非常不同,我在下面分离了不工作的SQL连接 请帮我解决这个问题,它已经伤了我的头两天了 public void pintransferfunds() { //PIN FRAME enterpinframe = new JFrame("E
public void pintransferfunds() {
//PIN FRAME
enterpinframe = new JFrame("Enter Pin");
enterpinframe.setSize(WIDTH, HEIGHT);
enterpinframe.setVisible(true);
enterpinframe.setResizable(false);
enterpinframe.setLocationRelativeTo(null);
enterpinframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//PIN PANEL
enterpinbg = new JPanel();
enterpinbg.setSize(WIDTH, HEIGHT);
enterpinbg.setBackground(Color.orange);
enterpinbg.setVisible(true);
enterpinbg.setLayout(null);
enterpinframe.add(enterpinbg);
JPasswordField inputpin = new JPasswordField();
inputpin.setFont(new Font("Consolas", Font.BOLD, 20));
inputpin.setForeground(Color.gray);
//Setbounds
inputpin.setBounds(250, 550, 100, 40);
//tester + image
enteryourpin = new ImageIcon(getClass().getResource("Enter yout PIN.png"));
tester = new JLabel(enteryourpin);
tester.setBounds(50, 50, 500, 500);
//enterpin Add
enterpinbg.add(tester);
enterpinbg.add(inputpin);
//exit and option button
OpEx();
this.dispose();
inputpin.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == (KeyEvent.VK_ENTER)) {
String pinx = inputpin.getText();
Connection con = null;
Statement stmt = null;
try {
Class.forName(JDBC_DRIVER1);
Class.forName(JDBC_DRIVER2);
con = DriverManager.getConnection(URL, USER, PASS);
stmt = con.createStatement();
String sql = "SELECT*FROM TBL_BANK WHERE PIN ='" + pinx + "' ";
ResultSet rs = stmt.executeQuery(sql);
while (rs.next()) {
pindb = rs.getString("PIN");
account_name = rs.getString("ACCOUNT_NAME");
balance = rs.getString("BALANCE");
id =rs.getInt("ID");
}
rs.close();
} catch (Exception f) {
System.out.println(f);
}
//if Login Success and Failed
if (pinx.equals(pindb)) {
//BALANCE
//PIN FRAME
frame = new JFrame("OptionFrame");
frame.setSize(WIDTH, HEIGHT);
frame.setVisible(true);
frame.setResizable(false);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//PIN PANEL
panel = new JPanel();
panel.setSize(WIDTH, HEIGHT);
panel.setBackground(Color.cyan);
panel.setVisible(true);
panel.setLayout(null);
username = new JLabel();
username.setBounds(0,0,300,50);
username.setText(" Welcome user:"+account_name);
panel.add(username);
pic = new ImageIcon(getClass().getResource("TranceForm(Sending money).png"));
pictester= new JLabel(pic);
pictester.setBounds(50,50, 500,500);
panel.add(pictester);
//Enter amount text
JLabel transferFunds = new JLabel("Enter Ammount Php:");
transferFunds.setBounds(50,400,200,200);
transferFunds.setFont(new Font("Century Gothic",Font.BOLD,20));
//Enter receiver Id text
JLabel receiverId = new JLabel("Enter Receiver ID:");
receiverId.setBounds(50,450,200,200);
receiverId.setFont(new Font("Century Gothic",Font.BOLD,20));
//Textfield Enter Ammount Php
JTextField transferField = new JTextField();
transferField.setBackground(Color.white);
transferField.setBounds(250,490,200,30);
//TextField Enter receiver Id
JTextField receiverField = new JTextField();
receiverField.setBackground(Color.white);
receiverField.setBounds(250,540,200,30);
amount =transferField.getText();
receive =receiverField.getText();
panel.add(receiverId);
panel.add(receiverField);
panel.add(transferFunds);
panel.add(transferField);
receiverField.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
}
//帮帮我,这是它不起作用的地方
@Override
public void keyPressed(KeyEvent e) {
if(e.getKeyCode()==KeyEvent.VK_ENTER)
{
Connection con = null;
Statement stmt =null;
try
{
Class.forName(JDBC_DRIVER1);
Class.forName(JDBC_DRIVER2);
con= DriverManager.getConnection(URL,USER,PASS);
stmt=con.createStatement();
String receivesql =("UPDATE TBL_BANK SET BALANCE = BALANCE+"+amount+" WHERE ID = "+receive+"");
String sendersql =("UPDATE TBL_BANK SET BALANCE= BALANCE-"+amount+" WHERE ACCOUNT_NAME='"+account_name+"'");
stmt.executeUpdate(receivesql);
stmt.executeUpdate(sendersql);
}
catch(Exception x)
{
System.out.println(x);
}
//结束
if(receiverField.getText().equals(id))
{
showMessageDialog(null,“您不能输入自己的id”);
}
其他的
{
ImageIcon transImg=新的ImageIcon(getClass().getResource(“转换(发送)成功!.png”);
JLabel transimgLoc=新的JLabel(transImg);
过渡位置立根(50,50500500);
面板。添加(transimgLoc);
面板。移除(pictester);
面板。移除(接收方);
面板。移除(接收场);
小组.撤除(转移资金);
面板。移除(转移字段);
panel.repaint();
}
}
}
@凌驾
公共无效密钥已释放(密钥事件e){
}
});
框架。添加(面板);
OpExtrue();
enterpinframe.dispose();
}否则如果(pinx!=(pindb)){
x++;
如果(x=8){
输入pinbg.removeAll();
输入bg.add(inputpin);
inputpin.setText(“”);
系统输出println(x);
PinErrorer=newImageIcon(getClass().getResource(“PinError2(多次).png”));
PinErrorTester=新的JLabel(PinErrorer);
立根(50,50,500,500);
输入pinbg.add(pinerrotester);
输入bg.add(panelOpEx);
输入pinbg.repaint();
}
}
}
}
@凌驾
公共无效密钥已释放(密钥事件e){
}
});
}
试试这个
String receivesql = "UPDATE TBL_BANK SET BALANCE = BALANCE + " + amount + " WHERE ID = " + receive + ";";
String sendersql = "UPDATE TBL_BANK SET BALANCE = BALANCE - " + amount + " WHERE ACCOUNT_NAME = '" + account_name + "';";
stmt.addBatch(receivesql);
stmt.addBatch(sendersql);
stmt.executeBatch();
您也可以尝试这样做,因为您同时执行两个SQL查询
Connection con = null;
Statement stmt = null;
try
{
Class.forName(JDBC_DRIVER1);
Class.forName(JDBC_DRIVER2);
con = DriverManager.getConnection(URL,USER,PASS);
con.setAutoCommit(false);
stmt = con.createStatement();
String receivesql = "UPDATE TBL_BANK SET BALANCE = BALANCE + " + amount + " WHERE ID = " + receive + ";";
String sendersql = "UPDATE TBL_BANK SET BALANCE = BALANCE - " + amount + " WHERE ACCOUNT_NAME = '" + account_name + "';";
stmt.executeUpdate(receivesql);
stmt.executeUpdate(sendersql);
con.commit();
} catch(Exception x)
{
System.out.println(x);
}
试试这个
String receivesql = "UPDATE TBL_BANK SET BALANCE = BALANCE + " + amount + " WHERE ID = " + receive + ";";
String sendersql = "UPDATE TBL_BANK SET BALANCE = BALANCE - " + amount + " WHERE ACCOUNT_NAME = '" + account_name + "';";
stmt.addBatch(receivesql);
stmt.addBatch(sendersql);
stmt.executeBatch();
您也可以尝试这样做,因为您同时执行两个SQL查询
Connection con = null;
Statement stmt = null;
try
{
Class.forName(JDBC_DRIVER1);
Class.forName(JDBC_DRIVER2);
con = DriverManager.getConnection(URL,USER,PASS);
con.setAutoCommit(false);
stmt = con.createStatement();
String receivesql = "UPDATE TBL_BANK SET BALANCE = BALANCE + " + amount + " WHERE ID = " + receive + ";";
String sendersql = "UPDATE TBL_BANK SET BALANCE = BALANCE - " + amount + " WHERE ACCOUNT_NAME = '" + account_name + "';";
stmt.executeUpdate(receivesql);
stmt.executeUpdate(sendersql);
con.commit();
} catch(Exception x)
{
System.out.println(x);
}
导致
UPDATE
对账单出错?更新对账单中的BALANCE+
和BALANCE-
是什么?只需中间的面板,我就可以将资金添加到我发送到的id中,并从活期账户中减去它。这些字段名称正确吗?你仔细检查了吗?导致更新
对账单出错?更新对账单中的余额+
和余额-
是什么?只需中间的面板,我就可以将资金添加到我发送到的id中,并从当前帐户中减去它。这些字段名称正确吗?您仔细检查了吗?我尝试了两种方法,第一种方法是catch语句1 java.sql.BatchUpdateException:Non-atomic batch failure。已提交该批,但该批的单个成员上至少发生了一个异常。使用getNextException()检索特定批处理元素的异常。但是第二个仍然是sameBoth不工作还是只有一个?注释一个查询,并尝试两个查询。如果仍然不工作,则单独进行平衡,并单独进行算术运算(+或-)。然后将其传递给查询。我尝试了两种方法,第一种方法是catch语句1 java.sql.BatchUpdateException:Non-atomic batch failure。已提交该批,但该批的单个成员上至少发生了一个异常。使用getNextException()检索特定批处理元素的异常。但是第二个仍然是sameBoth不工作还是只有一个?注释一个查询,并尝试两个查询。如果仍然不工作,则单独进行平衡,并单独进行算术运算(+或-)。然后将其传递给查询。