使用Hibernate 拦截执行sql语句，并输出sql语句，获取sql语句详解编程语言

package org.hibernate.type.descriptor.sql; 
 
import java.sql.PreparedStatement; 
import java.sql.SQLException; 
 
import org.hibernate.internal.CoreLogging; 
import org.hibernate.type.descriptor.JdbcTypeNameMapper; 
import org.hibernate.type.descriptor.ValueBinder; 
import org.hibernate.type.descriptor.WrapperOptions; 
import org.hibernate.type.descriptor.java.JavaTypeDescriptor; 
import org.jboss.logging.Logger; 
 
public abstract class BasicBinder<J> implements ValueBinder<J>{ 
 
    private static final Logger log = CoreLogging.logger( BasicBinder.class ); 
 
    private static final String BIND_MSG_TEMPLATE = "binding parameter [%s] as [%s] - [%s]"; 
    private static final String NULL_BIND_MSG_TEMPLATE = "binding parameter [%s] as [%s] - [null]"; 
 
	private final JavaTypeDescriptor<J> javaDescriptor; 
	private final SqlTypeDescriptor sqlDescriptor; 
 
	public JavaTypeDescriptor<J> getJavaDescriptor() { 
		return javaDescriptor; 
	} 
 
	public SqlTypeDescriptor getSqlDescriptor() { 
		return sqlDescriptor; 
	} 
 
	public BasicBinder(JavaTypeDescriptor<J> javaDescriptor, SqlTypeDescriptor sqlDescriptor) { 
		this.javaDescriptor = javaDescriptor; 
		this.sqlDescriptor = sqlDescriptor; 
	} 
 
	@Override 
	public final void bind(PreparedStatement st, J value, int index, WrapperOptions options) throws SQLException { 
        final boolean traceEnabled = log.isTraceEnabled(); 
       
        if ( value == null ) { 
            if ( traceEnabled ) { 
                log.trace( 
						String.format( 
								NULL_BIND_MSG_TEMPLATE, 
								index, 
								JdbcTypeNameMapper.getTypeName( getSqlDescriptor().getSqlType() ) 
						) 
				); 
            } 
            st.setNull( index, sqlDescriptor.getSqlType() ); 
        } 
        else { 
            if ( traceEnabled ) { 
                log.trace( 
						String.format( 
								BIND_MSG_TEMPLATE, 
								index, 
								JdbcTypeNameMapper.getTypeName( sqlDescriptor.getSqlType() ), 
								getJavaDescriptor().extractLoggableRepresentation( value ) 
						) 
				); 
            } 
             
            doBind( st, value, index, options ); 
        } 
        
        System.out.println(st.toString()); 
	} 
 
	/** 
	 * Perform the binding.  Safe to assume that value is not null. 
	 * 
	 * @param st The prepared statement 
	 * @param value The value to bind (not null). 
	 * @param index The index at which to bind 
	 * @param options The binding options 
	 * 
	 * @throws SQLException Indicates a problem binding to the prepared statement. 
	 */ 
	protected abstract void doBind(PreparedStatement st, J value, int index, WrapperOptions options) throws SQLException; 
 
 
}