Java-bug点滴记录(九)

1.全局配置文件头少写了字母等报错mybatis_config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
     PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
     "http://mybatis.org/dtd/mybatis-3-config.dtd">

<!-- mybatis的全局配置文件 -->

2.Foreach批量查询：id为1,2,3的数据

<select id="queryUsers2" parameterType="Integer" resultType="User">
 SELECT id,NAME,gender,regist_time as registTime
 FROM t_user
 where id in
 <foreach collection="list" open="(" separator="," close=")" item="id" index="ind">
     #{id}
 </foreach>
</select>

List<Integer> list = new A