org.hibernate.MappingException: No Dialect mapping for JDBC type: -9(-*)

SqlServer 异常类型：

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;

org.hibernate.MappingException: No Dialect mapping for JDBC type: -9

查阅资料，这个是由于JAVA对应数据库类型映射问题，-9是NVARCHAR 类型映射不了，

根据自己的方言加上：

RDBMS方言

DB2	org.hibernate.dialect.DB2Dialect
DB2 AS/400	org.hibernate.dialect.DB2400Dialect
DB2 OS390	org.hibernate.dialect.DB2390Dialect
PostgreSQL	org.hibernate.dialect.PostgreSQLDialect
MySQL	org.hibernate.dialect.MySQLDialect
MySQL with InnoDB	org.hibernate.dialect.MySQLInnoDBDialect
MySQL with MyISAM	org.hibernate.dialect.MySQLMyISAMDialect
Oracle (any version)	org.hibernate.dialect.OracleDialect
Oracle 9i/10g	org.hibernate.dialect.Oracle9Dialect
Sybase	org.hibernate.dialect.SybaseDialect
Sybase Anywhere	org.hibernate.dialect.SybaseAnywhereDialect
Microsoft SQL Server	org.hibernate.dialect.SQLServerDialect
SAP DB	org.hibernate.dialect.SAPDBDialect
Informix	org.hibernate.dialect.InformixDialect
HypersonicSQL	org.hibernate.dialect.HSQLDialect
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

public class SqlServer2008Dialect extends MySQL5Dialect{

     public SqlServer2008Dialect(){

          super();
          registerHibernateType(Types.DECIMAL, Hibernate.BIG_DECIMAL.getName());

          registerHibernateType(-1, Hibernate.STRING.getName());
    }

}

在属性文件配置：

<property name="hibernate.dialect" value="XXXXX(自己的包名.SqlServer2008Dialect)" />

就行了。