JDBC向数据库插入变量
我正在InsertQuery从用户通过Scanner.
如何将iName,iType等填写到 my 中，iQuery以便将它们插入到我的数据库中？
public void InsertQuery (String iName, String iType, int health_Problem, Date date2, String aRemind, String docName, String docType, String docAdress)
{
final String url = "jdbc:mysql://localhost/ehealthdb?serverTimezone=UTC";
final String DBUSER = "root";
final String DBPSWD = "root";
try {
Connection con = DriverManager.getConnection(url,DBUSER,DBPSWD);
Statement stmt = con.createStatement();
String iQuery = "INSERT into appointment"
+ "(ID, PatientID, Insurance_Name, Insurance_Type, Health_Problem, Appointment_Date, Appointment_Remind, Doctor_Name,Doctor_Type,Doctor_Adress)"
+ "values ('1','1',,'Gesetzlich','5','15.01.2020','1 Week','Musterarzt','Hausarzt','Musterstraße')";
stmt.executeUpdate(iQuery);
} catch (Exception e) {
System.out.println("Something went wrong @InsertQuery");
}
}
回答
最简单的方法可能是使用PreparedStatement：
public void insertQuery
(String iName, String iType, int healthProblem, Date date2, String aRemind, String docName, String docType, String docAddress)
throws SQLException {
final String url = "jdbc:mysql://localhost/ehealthdb?serverTimezone=UTC";
final String DBUSER = "root";
final String DBPSWD = "root";
try (Connection con = DriverManager.getConnection(url,DBUSER,DBPSWD);
PreparedStatement stmt = con.prepareStatement(
"INSERT into appointment" +
"(ID, PatientID, Insurance_Name, Insurance_Type, Health_Problem, Appointment_Date, Appointment_Remind, Doctor_Name, Doctor_Type, Doctor_Adress) " +
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)")) {
stmt.setString(1, iName);
stmt.setString(2, iType);
stmt.setInt(3, healthProblem);
stmt.setTimestamp(4, new Timestamp(date2.getTime()));
stmt.setString(5, aRemind);
stmt.setString(6, docName);
stmt.setString(7, docType);
stmt.setString(8, docAddress);
stmt.executeUpdate();
}
}