org.apache.ibatis.binding.BindingException: Parameter 'param' not found. Available parameters are [param1, form]

	//根據條件查詢hero
	public List<Hero> getHeroInformation(@Param("hero") Hero hero);

傳到Mapper層的是一個物件而我Mapper.xml   where的寫法錯誤示例如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.github.demo.dao.HeroMapper">
	<resultMap type="com.github.demo.vo.Hero" id="heroMapper">
		<id column="id" property="id" jdbcType="BIGINT" />
		<result column="hero_name" property="heroName" jdbcType="VARCHAR"/>
		<result column="hero_skills" property="heroSkills" jdbcType="VARCHAR"/>
		<result column="skill_plus_point" property="skillPlusPoint" jdbcType="VARCHAR"/>
		<result column="hero_out_of_the_pack" property="heroOutOfThePack" jdbcType="VARCHAR"/>
		<result column="hero_legend_story" property="heroLegendStory" jdbcType="VARCHAR"/>
		<result column="hero_orientation" property="heroOrientation" jdbcType="VARCHAR"/>
		<result column="hero_attribute" property="heroAttribute" jdbcType="VARCHAR"/>
   	</resultMap>
	
	<sql id="Hero_Base_Column_List">
		t.id,t.hero_name,t.hero_skills,t.skill_plus_point,t.hero_out_of_the_pack,t.hero_legend_story,t.hero_orientation,t.hero_attribute
	</sql>
	
	<select id="getHeroInformation" parameterType="com.github.demo.vo.Hero" resultMap="heroMapper">
		select 
		<include refid="Hero_Base_Column_List" />
		from mo_hero t where 1=1
					  <!-- 因為傳進來的是物件所以這樣寫是取不到值得 -->
			<if test="heroOrientation!=null  and heroOrientation!=''">   and   t.hero_orientation = #{heroOrientation}  </if>
	    	<if test="heroAttribute!=null  and heroAttribute!=''">   and   t.hero_attribute = #{heroAttribute}  </if>
	</select>
	
</mapper>
 

注意要用物件。屬性   取值