1.org.hibernate.MappingException: No Dialect mapping for JDBC type: -9
org.hibernate.MappingException: No Dialect mapping for JDBC type: -9
原因:Hibernate框架的方言(Dialect )没有数据库中数据类型nvarchar的映射,只有varchar类型的映射。所以在启动时出现此异常。
解决方法:
方法一:
将数据库字段的nvarchar类型改为varchar类型。
方法二:
为了指定更加明确的返回值类型,我们可以使用addScalar()方法:
session.createSQLQuery("select * from person_inf") .addScalar("name",StandardBasicTypes.STRING) .addScalar("age",StandardBasicTypes.INT) .list();
方法三:
org.hibernate.MappingException: No Dialect mapping for JDBC type: -9 org.hibernate.MappingException: No Dialect mapping for JDBC type: -15
笔者在做连接SQLServer2008数据库的时候遇到了上述的错误,解决办法如下:
package com.shihuan.core.framework.extend; import java.sql.Types; import org.hibernate.Hibernate; import org.hibernate.dialect.SQLServer2008Dialect; public class SqlServer2008Dialect extends SQLServer2008Dialect { public SqlServer2008Dialect() { super(); registerHibernateType(Types.CHAR, Hibernate.STRING.getName()); registerHibernateType(Types.NCHAR, Hibernate.STRING.getName()); registerHibernateType(Types.NVARCHAR, Hibernate.STRING.getName()); registerHibernateType(Types.LONGNVARCHAR, Hibernate.STRING.getName()); registerHibernateType(Types.DECIMAL, Hibernate.DOUBLE.getName()); } } java.sql.Types对应的值请参考http://blog.sina.com.cn/s/blog_4f925fc30102ep0v.html java.sql.Types对应的sql server2008中的一些值: public final static int BIT = -7; public final static int TINYINT = -6; public final static int SMALLINT = 5; public final static int INTEGER = 4; public final static int BIGINT = -5; public final static int FLOAT = 6; public final static int REAL = 7; public final static int DOUBLE = 8; public final static int NUMERIC = 2; public final static int DECIMAL = 3; public final static int CHAR = 1; public final static int VARCHAR = 12; public final static int LONGVARCHAR = -1; public final static int DATE = 91; public final static int TIME = 92; public final static int TIMESTAMP = 93; public final static int BINARY = -2; public final static int VARBINARY = -3; public final static int LONGVARBINARY = -4; public final static int NULL = 0; public final static int OTHER = 1111; public final static int JAVA_OBJECT = 2000; public final static int DISTINCT = 2001; public final static int STRUCT = 2002; public final static int ARRAY = 2003; public final static int BLOB = 2004; public final static int CLOB = 2005; public final static int REF = 2006; public final static int DATALINK = 70; public final static int BOOLEAN = 16; public final static int ROWID = -8; public static final int NCHAR = -15; public static final int NVARCHAR = -9; public static final int LONGNVARCHAR = -16; public static final int NCLOB = 2011; public static final int SQLXML = 2009;
Hibernate SQL方言(hibernate.dialect):
RDBMS |
Dialect |
DB2 |
org.hibernate.dialect.DB2Dialect |
DB2 AS/400 |
org.hibernate.dialect.DB2400Dialect |
DB2 OS390 |
org.hibernate.dialect.DB2390Dialect |
PostgreSQL |
org.hibernate.dialect.PostgreSQLDialect |
MySQL5 |
org.hibernate.dialect.MySQL5Dialect |
MySQL5 with InnoDB |
org.hibernate.dialect.MySQL5InnoDBDialect |
MySQL with MyISAM |
org.hibernate.dialect.MySQLMyISAMDialect |
Oracle(any version) |
org.hibernate.dialect.OracleDialect |
Oracle 9i |
org.hibernate.dialect.Oracle9iDialect |
Oracle 10g |
org.hibernate.dialect.Oracle10gDialect |
Oracle 11g |
org.hibernate.dialect.Oracle10gDialect |
Sybase |
org.hibernate.dialect.SybaseASE15Dialect |
Sybase Anywhere |
org.hibernate.dialect.SybaseAnywhereDialect |
Microsoft SQL Server 2000 |
org.hibernate.dialect.SQLServerDialect |
Microsoft SQL Server 2005 |
org.hibernate.dialect.SQLServer2005Dialect |
Microsoft SQL Server 2008 |
org.hibernate.dialect.SQLServer2008Dialect |
SAP DB |
org.hibernate.dialect.SAPDBDialect |
Informix |
org.hibernate.dialect.InformixDialect |
HypersonicSQL |
org.hibernate.dialect.HSQLDialect |
H2 Database |
org.hibernate.dialect.H2Dialect |
Ingres |
org.hibernate.dialect.IngresDialect |
Progress |
org.hibernate.dialect.ProgressDialect |
Mckoi SQL |
org.hibernate.dialect.MckoiDialect |
Interbase |
org.hibernate.dialect.InterbaseDialect |
Pointbase |
org.hibernate.dialect.PointbaseDialect |
FrontBase |
org.hibernate.dialect.FrontbaseDialect |
Firebird |
org.hibernate.dialect.FirebirdDialect |
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