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studentMapper.insertStudent(student);在执行晚SQL语句之后，记得session.commit(); |
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配置数据库地址时加上编码格式characterEncoding： <property name="url" value="jdbc:mysql://localhost:3306/test?characterEncoding=utf8"/> |
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.sjf.mapper.CourseMapper"><resultMap id = "CourseResultMap" type="com.sjf.bean.Course" ><id property="ID" column="ID"/><result property="name" column="name"/><result property="desc" column="description"/><result property = "startDate" column = "startDate"/><result property = "endDate" column = "endDate"/></resultMap><select id="getCourseByCondation" parameterType="hashmap" resultMap="CourseResultMap">SELECT * FROM CourseWHERE teacherID = #{teacherID}<if test = "courseName != null" >AND NAME = #{courseName}</if><if test = "startDate != null">AND startDate >= #{startDate}</if><if test = "endDate != null">AND endDate <= #{endDate}</if></select></mapper>
| 转义符 | 符号 |
|---|---|
| < | <（小于号） |
| > | >（大于号） |
| & | &（和） |
| ' | ‘（单引号） |
| " | "（双引号） |
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.sjf.mapper.CourseMapper"><resultMap id = "CourseResultMap" type="com.sjf.bean.Course" ><id property="ID" column="ID"/><result property="name" column="name"/><result property="desc" column="description"/><result property = "startDate" column = "startDate"/><result property = "endDate" column = "endDate"/></resultMap><select id="getCourseByCondation" parameterType="hashmap" resultMap="CourseResultMap">SELECT * FROM CourseWHERE teacherID = #{teacherID}<if test = "courseName != null" >AND NAME = #{courseName}</if><if test = "startDate != null"><![CDATA[AND startDate >= #{startDate} ]]></if><if test = "endDate != null"><![CDATA[AND endDate <= #{endDate} ]]></if></select></mapper>
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原文地址：http://blog.csdn.net/sunnyyoona/article/details/50710310
