一.入参为List的写法: <select id="queryParamList" resultType="map" parameterType="java.util.List"> select id from static where id in <foreach collection="list" index="index" item="item" open=&qu
mybatis 查询 xml list参数: <select id="getByIds" resultType="string" parameterType="java.util.List"> SELECT a.FENLEINAME from Tab a where a.id in (select b.pid from TB b where b.id in <foreach collection="list"
参数获取 之前我们都是采用#{}的方式进行参数传递,其实MyBatis还有另外的参数传递方式${} 使用方法相同,但是还是有很大区别的 这里做一个测试: <select id="getEmpByMap" resultType="com.figsprite.bean.Employee"> select id,last_name lastName,gender,email from tb_employee where id = ${id} and
Mybatis找不到参数错误:There is no getter for property named 'categoryId' in 'class java.lang.Integer'. 错误List<Post> listPage(Integer categoryId);在测试时报错:There is no getter for property named 'categoryId' in 'class java.lang.Integer' 问题分析:Mybatis默认采用ONGL解析参数
第一种方案 DAO层的函数方法 public User selectUser(String name,String area); 对应的Mapper.xml <select id="selectUser" resultMap="BaseResultMap"> select * from user_user_t where user_name = #{0} and user_area=#{1} </select> 其中,#{0}代表接收的是da
java传递String参数不会改变原String参数,此处传递的是copy package numCombine; public class NumComberAll { public static void main(String[] args) { // TODO Auto-generated method stub String s = "lll"; fun(s); System.out.println(s); } public static void fun(String s
一.单个参数: public List<XXBean> getXXBeanList(String xxCode); <select id="getXXXBeanList" parameterType="java.lang.String" resultType="XXBean"> select t.* from tableName t where t.id= #{id} </select> 其中方法名和ID一致,
一.单个参数: public List<XXBean> getXXBeanList(String xxCode); <select id="getXXXBeanList" parameterType="java.lang.String" resultType="XXBean"> select t.* from tableName t where t.id= #{id} </select> 其中方法名和ID一致,
在使用mybatis时,写了一条sql语句,只有一个String类型的参数, 示例代码 <select id="getApplyNum" parameterType="java.lang.String" resultType="java.util.Map"> SELECT t.activity_id AS "activityId", COUNT(1) AS "count" FROM t_user