标签:actor stat url ace into final 指定 ltm config
在C:\Program Files\MySQL\MySQL Server 5.7\bin下面:
首先连接MySQL: mysql -u root -p
/* 建立数据库 */ CREATE DATABASE STUDENT_MANAGER; USE STUDENT_MANAGER; /***** 建立student表 *****/ CREATE TABLE STUDENT_TBL ( STUDENT_ID VARCHAR(255) PRIMARY KEY, STUDENT_NAME VARCHAR(10) NOT NULL, STUDENT_SEX VARCHAR(10), STUDENT_BIRTHDAY DATE, CLASS_ID VARCHAR(255) ); /*插入学生数据*/ INSERT INTO STUDENT_TBL (STUDENT_ID, STUDENT_NAME, STUDENT_SEX, STUDENT_BIRTHDAY, CLASS_ID) VALUES (123456, ‘某某某‘, ‘女‘, ‘1980-08-01‘, 121546 )
创建连接MySql使用的配置文件mysql.properties。
jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/student_manager?user=root&password=limingnihao&useUnicode=true&characterEncoding=UTF-8
package com.deppon.test04.entity; import java.io.Serializable; import java.util.Date; public class StudentEntity implements Serializable { private static final long serialVersionUID = 3096154202413606831L; private Date studentBirthday; private String studentID; private String studentName; private String studentSex; public Date getStudentBirthday() { return studentBirthday; } public String getStudentID() { return studentID; } public String getStudentName() { return studentName; } public String getStudentSex() { return studentSex; } public void setStudentBirthday(Date studentBirthday) { this.studentBirthday = studentBirthday; } public void setStudentID(String studentID) { this.studentID = studentID; } public void setStudentName(String studentName) { this.studentName = studentName; } public void setStudentSex(String studentSex) { this.studentSex = studentSex; } }
Student类对应的dao接口:StudentMapper。
public interface StudentMapper { public StudentEntity getStudent(String studentID); public StudentEntity getStudentAndClass(String studentID); public List<StudentEntity> getStudentAll(); public void insertStudent(StudentEntity entity); public void deleteStudent(StudentEntity entity); public void updateStudent(StudentEntity entity); }
Student类的sql语句文件StudentMapper.xml
resultMap标签:表字段与属性的映射。
Select标签:查询sql。
<?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.deppon.test04.dao.StudentMapper"> <resultMap type="StudentEntity" id="studentResultMap"> <id property="studentID" column="STUDENT_ID"/> <result property="studentName" column="STUDENT_NAME"/> <result property="studentSex" column="STUDENT_SEX"/> <result property="studentBirthday" column="STUDENT_BIRTHDAY"/> </resultMap> <!-- 查询学生,根据id --> <select id="getStudent" parameterType="String" resultType="com.deppon.test04.entity.StudentEntity" resultMap="studentResultMap"> <![CDATA[ SELECT * from STUDENT_TBL ST WHERE ST.STUDENT_ID = #{studentID} ]]> </select> <!-- 查询学生列表 --> <select id="getStudentAll" resultType="com.deppon.test04.entity.StudentEntity" resultMap="studentResultMap"> <![CDATA[ SELECT * from STUDENT_TBL ]]> </select> </mapper>
在src/main/resource中创建MyBatis配置文件:mybatis-config.xml。
typeAliases标签:给类起一个别名。com.manager.data.model.StudentEntity类,可以使用StudentEntity代替。
Mappers标签:加载MyBatis中实体类的SQL映射语句文件。
<?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"> <configuration> <!-- 全局别名设置,在映射文件中只需写别名,而不必写出整个类路径 --> <typeAliases> <typeAlias type="com.deppon.test04.entity.StudentEntity" alias="StudentEntity"/> </typeAliases> <mappers> <mapper resource="src/main/resources/StudentMapper.xml" /> </mappers> </configuration>
主要是添加SqlSession的制作工厂类的bean:SqlSessionFactoryBean,(在mybatis.spring包中)。需要指定配置文件位置和dataSource。
和数据访问接口对应的实现bean。通过MapperFactoryBean创建出来。需要执行接口类全称和SqlSession工厂bean的引用
mybatis 学习二 MyBatis简介与配置MyBatis+Spring+MySql
标签:actor stat url ace into final 指定 ltm config
原文地址:http://www.cnblogs.com/liufei1983/p/7469521.html