java - 我的代码在 index::12 处缺少 IN 或 OUT 参数是怎么回事

Question

我无法弄清楚这个错误在我的 Java 代码中意味着什么。

private static final String INPUT_FILE = "res/resprop.txt";
private static final String SELECT_MAX_ID = "SELECT MAX(ID) FROM RES";
private static final String INSERT_STMT = "INSERT INTO RES(ID, LEGALDESCRIPTION, ADDRESS, QUADRANT, ZONE, ASKINGPRICE, COMMENTS, AREA, BATHROOMS, BEDROOMS, GARAGE) values(?,?,?,?,?,?,?,?,?,?,?)";
private static final String UPDATE_STMT = "UPDATE RES SET ID = ?, LEGALDESCRIPTION = ?, ADDRESS = ?, QUADRANT = ?, ZONE = ?, ASKINGPRICE = ?, COMMENTS = ?, AREA = ?, BATHROOMS = ?, BEDROOMS = ?, GARAGE = ? where ID = ?";
private static final String SELECT_ID_STMT = "SELECT * FROM RES where ID = ?";
private static final String SELECT_LEGALDESCRIPTION_STMT = "SELECT * FROM RES where LEGALDESCRIPTION = ?";
private static final String SELECT_QUADRANT_STMT = "SELECT * FROM RES where QUADRANT = ?";
private static final String SELECT_PRICE_STMT = "SELECT * FROM RES where ASKINGPRICE = ?";

在以下行“int rowCount = pStat.executeUpdate();”处引发错误

我不确定为什么会出现问题，我从未听说过 in 或 out 参数。另外它被称为java.sql.SQLException。

private boolean updatePreparedStatement(ResidentialProperty rp)
{
    try
    {

        PreparedStatement pStat = conn.prepareStatement(UPDATE_STMT);
        pStat.setLong(1, rp.getId());
        pStat.setString(2, rp.getLegalDescription());
        pStat.setString(3, rp.getAddress());
        pStat.setString(4, rp.getQuadrant());
        pStat.setString(5, rp.getZone());
        pStat.setDouble(6, rp.getAskingPrice());
        pStat.setString(7, rp.getComments());
        pStat.setDouble(8, rp.getArea());
        pStat.setDouble(9, rp.getBathrooms());
        pStat.setInt(10, rp.getBedrooms());
        pStat.setString(11, rp.getGarage()+"");

        int rowCount = pStat.executeUpdate();

        System.out.println("row count = "+ rowCount);
        pStat.close();
        return rowCount == 1;

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

}

java.sql.SQLException: Missing IN or OUT parameter at index:: 12
at oracle.jdbc.driver.OraclePreparedStatement.processCompletedBindRow(OraclePreparedStatement.java:1752)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3444)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3530)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350)
at saitMLS.persistance.property.ResidentialPropertyBroker.updatePreparedStatement(ResidentialPropertyBroker.java:221)
at saitMLS.persistance.property.ResidentialPropertyBroker.persist(ResidentialPropertyBroker.java:263)
at saitMLS.problemDomain.property.UserInterface$1.actionPerformed(UserInterface.java:670)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Answer 1

您需要将第12个参数传递给PreparedStatement以执行更新查询，因此添加如下所示:

pStat.setLong(12, rp.getId());

但是，我建议，更好的方法是，您不需要在 UPDATE_STMT 语句中再次设置 ID(即作为第一个参数)，因此修改代码如下:

    pStat.setString(1, rp.getAddress());
    pStat.setString(2, rp.getQuadrant());
    //add others here
    pStat.setString(10, rp.getGarage()+"");
    pStat.setLong(11, rp. getId());

查询:

UPDATE_STMT = "UPDATE RES SET LEGALDESCRIPTION = ?, 
 ADDRESS = ?, QUADRANT = ?, ZONE = ?, ASKINGPRICE = ?, COMMENTS = ?, 
 AREA = ?, BATHROOMS = ?, BEDROOMS = ?, GARAGE = ? where ID = ?";