【Mybatis】There is no getter for property named 'type' in 'class java.lang.String'

DAO:

List<String> getNameByType(String type);

原Mapper：

<select id="getNameByType" resultType="String" parameterType="String">select name from t_peoplewhere <if test="type == null">type is null</if><if test="type != null">type = #{type}  </if></select>

如果只传入一个 String 类型的参数，那么应该把 select 配置中所有用到 type 参数的地方都改成 _parameter 

新Mapper：

<select id="getNameByType" resultType="String" parameterType="String">select name from t_peoplewhere <if test="_parameter == null">_parameter is null</if><if test="_parameter != null">type = #{_parameter}  </if></select>

End .