[英]Insert a new record to table in GUI java
I am working on the insertion a new data to mysql database. 我正在向MySQL数据库插入新数据。 I got an error says that
我有一个错误说
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '')' at
line 1
Can anybody show me what is wrong with my code? 有人可以告诉我我的代码有什么问题吗? Here is my code:
这是我的代码:
public class ButtonListener implements ActionListener{
public void actionPerformed(ActionEvent e){
String queryString = "";
String queryString2 = "";
String outputString = "";
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/dealer", "root", "admin");
statement = connection.createStatement();
String driverID = driverIdTextField.getText();
String firstName = firstNameTextField.getText();
String lastName = lastNameTextField.getText();
String address = addressTextField.getText();
String phone = phoneTextField.getText();
String license = licenseTextField.getText();
String brand = brandTextField.getText();
String model = modelTextField.getText();
String year = yearTextField.getText();
String selectItem = (String) carStatus.getSelectedItem();
queryString = "insert into person values ('" + (driverID) + "' + '" + (firstName) + "' + '" + (lastName) + "' + '" + (address)
+ "' + '" + (phone) + ")";
queryString2 = "insert into cars values ('" + (license) + "' + '" + (brand) + "' + '" + (model) + "' + '" + (year)
+ "' + '" + (selectItem) + ")";
statement.executeUpdate(queryString);
statement.executeUpdate(queryString2);
connection.close();
} catch (SQLException sqlException){
sqlException.printStackTrace();
} catch ( ClassNotFoundException x ) {
x.printStackTrace();
} catch ( InstantiationException x ) {
x.printStackTrace();
} catch ( IllegalAccessException x ) {
x.printStackTrace();
}
}
Here is my tables. 这是我的桌子。 I have two tables
我有两张桌子
create table person
( driverID int unsigned not null primary key,
firstName char(20) not null,
lastName char(20) not null,
address char(30) not null,
phone int unsigned
);
create table cars
( license char(10) not null primary key,
brand char(20) not null,
model char(20) not null,
year date,
status char(10) not null
);
Thank you for your help! 谢谢您的帮助!
You are missing commas in your INSERT statements (you've used plus signs instead)... 您在INSERT语句中缺少逗号(改为使用加号)...
queryString = "insert into person values ('" + (driverID) + "', '" + (firstName) + "', '" + (lastName) + "', '" + (address)
+ "', '" + (phone) + "')";
(I think you were also missing a close quote on that line) (我认为您在该行上也缺少一个引号)
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