mybatis配置错误

Question

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="/"> <select id="findAllUser2" resultType="hashmap"> SELECT * FROM student </select> <select id="findUserByname" parameterType="String" resultType="hashmap">    SELECT * FROM student where name=#{xxx}    </select> <select id="findUserByUsernameAndNumber" parameterType="domain.User" resultType="domain.User">    SELECT * FROM student where name='${name}' and number='${number}'    </select>     <insert id="insertUserByUsernameAndNumber" parameterType="domain.User">    insert into student(name,number)    value(#{name},'${number}')    </insert>        <update id="updateUserByUsernameAndNumber" parameterType="domain.User">   update student set name='${name}' where number=#{number}     </update>         <delete id="deleteUserByUsernameAndNumber" parameterType="string">     delete from student where  name=#{name}     </delete>            <!-- 子查询 -->>    <select id="findOneDepartment" parameterType="int" resultType="domain.Department">    select * from department    where id=#{id}    </select>    <select id="findAllUserSub" resultMap="findAllUserSub">    select * from student    </select>    <resultMap type="domain.User" id="findAllUserSub">    <id property="name" column="name"/>    <result property="number" column="number"/>    <association column="deptid" property="deptid" javaType="domain.Department" select="findOneDepartment">    </association>    </resultMap>        <!--构造查询   -->    <association column="deptid" property="deptid" javaType="domain.Department">    <constructor>    <arg column="id" javaType="int"/>    <arg column="depname" javaType="String"/>     </constructor>    <id column="id" property="id"></id>    <result column="depname" property="dname"></result>    </association>          <!-- 一对多查询 -->>    <select id="findAllUsercollection" resultMap="resultUsers"> select * from student,department where student.deptid=department.id </select> <resultMap id="resultUsers" type="domain.Department"> <id column="id" property="id"></id> <result column="name" property="name"></result> <collection property="users" column="User.name" javaType="ArrayList" ofType="domain.User"> <result column="username" property="name"></result> <result column="password" property="number"></result> <result column="deptid" property="deptid"></result> </collection> </resultMap> </mapper>

Answer 1

注意resultType，parameterType对应的类型不要写错，其他的错误看不出来，能力有限

Answer 2

把错误信息贴出来