Question

我正在将旧版应用程序的spring和hibernate版本从spring 3升级到spring 5，将hibernate3升级到hibernate5。为此，我正在使用spring-boot。我们使用SQLServer作为数据库。其中一个Dao在查询中使用“ bitwise_and”从数据库中获取数据。

但是当它尝试查询时，它将失败，并带有以下异常：-

Caused by: java.sql.SQLException: 'bitwise_and' is not a recognized built-in function name.
    at net.sourceforge.jtds.jdbc.SQLDiagnostic.addDiagnostic(SQLDiagnostic.java:372)
    at net.sourceforge.jtds.jdbc.TdsCore.tdsErrorToken(TdsCore.java:2988)
    at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2421)
    at net.sourceforge.jtds.jdbc.TdsCore.getMoreResults(TdsCore.java:671)
    at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:505)
    at net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeQuery(JtdsPreparedStatement.java:1029)
    at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
    at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:60)
    ... 57 common frames omitted

要启用bitwise_and运算符，将自定义SQLServerDialect配置如下：-

import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.type.IntegerType;

public class CustomSQLServerDialect extends org.hibernate.dialect.SQLServerDialect {

    public CustomSQLServerDialect() {
        super();
        registerFunction("bitwise_and", new StandardSQLFunction("bitwise_and", IntegerType.INSTANCE));
    }
}

此自定义方言也已添加到SessionFactory的hibernateProperties中。

任何帮助将不胜感激。

在SQLServerDialect中启用bitwise_and操作

0 个答案: