java.sql.SQLException：SQL 句子在 org.hsqldb.jdbc.JDBCUtil.sqlException 结束

Question

我正在尝试在我的 HSQLDB 数据库中插入一个新行。我有这个代码：

private final String SQL_CREAR_ATLETA=" INSERT INTO ATLETA (ID_ATLETA, DNI, NOMBRE, APELLIDOS, GENERO, NACIMIENTO, CORREO, TELEFONO, CODIGOFEDERACION) VALUES (?,?,?,?,?,?,?,?,?) ";

@Override
public void crearAtleta(String dni, String nombre, String apellidos, char genero, Date nacimiento, String correo,
        String telefono, String codigoFederacion) throws SQLException {

    try {
        con = Jdbc.getConnection();
        pst = con.prepareStatement(SQL_CREAR_ATLETA);

        Integer idAtleta = calcularIdAtleta(); /*this is not null , it gives the next id , for example if there are 3 athlete in the DB , will return a 4*/

        pst.setString(1, String.valueOf(idAtleta)); // <- the code crash here
        pst.setString(2, nombre);
        pst.setString(3, apellidos);
        pst.setString(4, String.valueOf(genero));
        pst.setDate(5, new java.sql.Date(nacimiento.getTime()));
        pst.setString(6, dni);
        pst.setString(7, correo);
        pst.setString(8, telefono);
        pst.setString(9, codigoFederacion);
        pst.execute();

    } catch (SQLException e) {
        e.printStackTrace();
    }

}

程序在pst.setString(1)行将id设置到sql句时崩溃。 stackTrace 是这个：

java.sql.SQLException: SQL sentence is closed
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatementBase.checkClosed(Unknown Source)
    at org.hsqldb.jdbc.JDBCPreparedStatement.checkSetParameterIndex(Unknown Source)
    at org.hsqldb.jdbc.JDBCPreparedStatement.setParameter(Unknown Source)
    at org.hsqldb.jdbc.JDBCPreparedStatement.setString(Unknown Source)
    at reestructurado.persistencia.impl.AtletasGatewayImpl.crearAtleta(AtletasGatewayImpl.java:50)
    at ui.UInscripcion.actionPerformed(UInscripcion.java:316)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    at java.awt.Component.processMouseEvent(Unknown Source)
    at javax.swing.JComponent.processMouseEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access0(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: org.hsqldb.HsqlException: sentencia SQL está cerrada
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.error.Error.error(Unknown Source)
    ... 43 more

我不明白这个问题。我试图更改数据类型，但似乎没有任何效果。我的 table 是这个：

Answer 1

即使您没有公开所有相关代码，问题很可能是您在不同的方法中重复使用同一个 PreparedStatement 对象。您可能正在使用 pst 查询 calcularIdAtleta() 中的下一个玩家 ID，这将使语句在 calcularIdAtleta() returns 时关闭。你不应该那样做。相反，使用方法局部变量；它们使您的代码更易于阅读且不易出错。

尝试将您的方法改为此方法，本质上是在本地声明 PreparedStatement：

public void crearAtleta(String dni, String nombre, 
        String apellidos, char genero, 
        Date nacimiento, String correo,
        String telefono, String codigoFederacion) throws SQLException {

    PreparedStatement ps = null;

    try {
        ps = Jdbc.getConnection().prepareStatement(SQL_CREAR_ATLETA);

        Integer idAtleta = calcularIdAtleta();

        ps.setString(1, String.valueOf(idAtleta));
        ps.setString(2, nombre);
        ps.setString(3, apellidos);
        ps.setString(4, String.valueOf(genero));
        ps.setDate(5, new java.sql.Date(nacimiento.getTime()));
        ps.setString(6, dni);
        ps.setString(7, correo);
        ps.setString(8, telefono);
        ps.setString(9, codigoFederacion);
        ps.execute();

    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        if (ps != null) {
            ps.close();
        }
    }    
}

java.sql.SQLException：SQL 句子在 org.hsqldb.jdbc.JDBCUtil.sqlException 结束

java.sql.SQLException: SQL sentence is closed at org.hsqldb.jdbc.JDBCUtil.sqlException

java

jdbc

hsqldb