Mybatis中可以傳遞的參數

在mybatis中通常會接受參數，來根據參數限定一些操作數據庫語句。傳遞的參數分類：

1.基本的參數String，int,Date等。在sql語句中通過#（參數名）獲取到參數

<select id="selectPeople" parameterType="int" resultType="com.entry.people">

select * from people where p_id = #{pid}  

</select> 

   2.複雜數據類型：包含JAVA實體類、Map。通過 #{屬性名} 或 #{map的Key值}即可獲取傳入的值

1）java實體類參數傳值

<select id="selectPeople" parameterType="com.entry.people" resultType = "com.entry.people">

select * from people where p_sid = #{pid}

</select>

2) map集合

Map<String,Object> map = new <String,Object> HashMap();

map.put("age",12);

map.put("sex","男");

<select id="selectPeople" parameterType="com.entry.people" resultType = "com.entry.people">

select * from people where p_age = #(age} ande p_sex = #{sex}

</select>