使用mybatis的generator自己主动生成代码，可是oracle数据库中number(6,2)总是自己主动转成BigDecimal。我想要转成的是float类型

这样就写了一个类型转换器，须要继承JavaTypeResolver接口

然后在mybaties配置文件generatorConfig.xml中类型转换配置位置加入上就可以

<javaTypeResolver type="com.generator.MyJavaTypeResolver">

	<property name="forceBigDecimals" value="false" />											<!-- 类型解析器 -->

</javaTypeResolver>

类型转换器MyJavaTypeResolver主要代码

public FullyQualifiedJavaType calculateJavaType(

			IntrospectedColumn introspectedColumn) {

		// TODO Auto-generated method stub

		 FullyQualifiedJavaType answer;

	        JdbcTypeInformation jdbcTypeInformation = typeMap

	                .get(introspectedColumn.getJdbcType());

	        if (jdbcTypeInformation == null) {

	            switch (introspectedColumn.getJdbcType()) {

	            case Types.DECIMAL:

	            case Types.NUMERIC:

	            	if(introspectedColumn.getScale() > 0)

	            	{//假设包括小数点则转换成float

	            		answer = new FullyQualifiedJavaType(Float.class.getName());

	            	}else{

	            		if ( introspectedColumn.getLength() > 18

	            				|| forceBigDecimals) {

	            			answer = new FullyQualifiedJavaType(BigDecimal.class

	            					.getName());

	            		} else if (introspectedColumn.getLength() > 9) {

	            			answer = new FullyQualifiedJavaType(Long.class.getName());

	            		} else if (introspectedColumn.getLength() > 4) {

	            			answer = new FullyQualifiedJavaType(Integer.class.getName());

	            		} else {

	            			answer = new FullyQualifiedJavaType(Short.class.getName());

	            		}

	            	}

	                break;

	            default:

	                answer = null;

	                break;

	            }

	        } else {

	            answer = jdbcTypeInformation.getFullyQualifiedJavaType();

	        }

	        return answer;

	}