mybatis (2) 的配置文件及简单的 test

1...pom.xml 配置文件

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5     <modelVersion>4.0.0</modelVersion>
 6 
 7     <groupId>com.wsc.mybatis</groupId>
 8     <artifactId>testMybatis05</artifactId>
 9     <version>1.0-SNAPSHOT</version>
10 
11 
12     <properties>
13         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
14         <maven.compiler.source>1.8</maven.compiler.source>
15         <maven.compiler.target>1.8</maven.compiler.target>
16     </properties>
17     <dependencies>
18         <dependency>
19             <groupId>junit</groupId>
20             <artifactId>junit</artifactId>
21             <version>4.12</version>
22         </dependency>
23         <dependency>
24            <groupId>MysqL</groupId>
25             <artifactId>mysql-connector-java</artifactId>
26             <version>5.1.6</version>
27         </dependency>
28         <dependency>
29             <groupId>org.mybatis</groupId>
30             <artifactId>mybatis</artifactId>
31             <version>3.4.5</version>
32         </dependency>
33         <dependency>
34             <groupId>log4j</groupId>
35             <artifactId>log4j</artifactId>
36             <version>1.2.17</version>
37         </dependency>
38     </dependencies>
39 </project>

pom.xml

2...jdbc.properties

1 jdbc.driver=com.MysqL.jdbc.Driver
2 jdbc.url=jdbc:MysqL://localhost:3306/studentdb
3 jdbc.name=root
4 jdbc.password=wsc

jdbc.properties

3...sqlMapperConfig.xml

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2         <!DOCTYPE configuration
 3                 PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
 4                 "http://mybatis.org/dtd/mybatis-3-config.dtd">
 5 <configuration>
 6 <!--    引入外部文件-->
 7 <properties resource="jdbc.properties"></properties>
 8 <!--    插件-->
 9 <!--    <plugins>-->
10 <!--        <plugin interceptor=""></plugin>-->
11 <!--    </plugins>-->
12 
13 <!--    类型转换-->
14 <!--    <typeHandlers></typeHandlers>-->
15 
16     <!--类别名映射 <typeAliases type="com.wsc.domain.User" alias=User">
17        包的映射 引入包中所有的pojo 类型  配置别名  ：简单类名  不区分大小写
18     -->
19     <typeAliases>
20         <package name="com.wsc.domain"/>
21     </typeAliases>
22 <environments default="development">
23 
24 
25     <environment id="development">
26 
27         <transactionManager type="JDBC"/>
28         <dataSource type="POOLED">
29             <property name="driver" value="${jdbc.driver}"/>
30             <property name="url" value="${jdbc.url}"/>
31             <property name="username" value="${jdbc.name}"/>
32             <property name="password" value="${jdbc.password}"/>
33         </dataSource>
34     </environment>
35 </environments>
36 <mappers>
37     <mapper resource="com/wsc/dao/StudentMapper.xml"/>
38 </mappers>
39 </configuration>

sqlMapperConfig.xml

4...StudentMapper.xml

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE mapper
 3         PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 4         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 5 <mapper namespace="StudentDao">
 6     <select id="find" resultType="Student">
 7         select * from student;
 8     </select>
 9     <!--    通过id查询-->
10     <select id="selectById" resultType="Student" parameterType="java.lang.Integer">
11         SELECT * FROM student where studentNo=#{studentNo};
12     </select>
13     <!--    删除通过id-->
14     <delete id="drop"  parameterType="java.lang.Integer">
15        Delete from student where studentNo=#{studentNo};
16     </delete>
17     <!--    添加-->
18     <insert id="add" parameterType="Student">
19             insert into student values (null,#{studentName},#{age},#{boreDate},#{classNo});
20     </insert>
21     <!--    修改数据-->
22     <update id="change" parameterType="Student" >
23         update student set studentName=#{studentName},age=#{age},boreDate=#{boreDate},classNo=#{classNo}  where studentNo=#{studentNo};
24     </update>
25     <!--    模糊查询-->
26     <select id="queryByName"  resultType="Student" parameterType="java.lang.String">
27         select * from student where studentName like "%"#{studentName}"%";
28     </select>
29 </mapper>

StudentMapper.xml

5...dao层

 1 package com.wsc.dao;
 2 
 3 import com.wsc.domain.Student;
 4 
 5 import java.util.List;
 6 
 7 
 8 /**
 9  * @version 1.0
10  * @ClassName StudentDao
11  * @Description Todo
12  * @Author WSC
13  * @Date 2019/7/1 14:32
14  **/
15 public interface StudentDao {
16     /**
17      * 查询所有数据
18      * @return 数据集合
19      */
20     public List<Student> find();
21     /**
22      * 通过id删除
23      * @param id
24      */
25     public void drop(Integer id);
26 
27     /**
28      * 通过id 查询
29      * @param id
30      */
31     public List<Student> selectById(Integer id);
32 
33     /**
34      * 通过对象 添加数据
35      * @param student
36      */
37     public void add(Student student);
38 
39     /**
40      * 模糊查询
41      * @param name
42      */
43     public List<Student> queryByName(String name);
44 
45     /**
46      * 通过id 修改数据
47      *
48      */
49     public void change(Student student);
50 }

StudentDao

6...test

 1 package com.wsc.testMybatis;
 2 
 3 import com.wsc.dao.StudentDao;
 4 import com.wsc.domain.Student;
 5 import org.apache.ibatis.session.sqlSession;
 6 import org.apache.ibatis.session.sqlSessionFactory;
 7 import org.apache.ibatis.session.sqlSessionFactoryBuilder;
 8 import org.junit.Before;
 9 import org.junit.Test;
10 
11 import java.util.Date;
12 import java.util.List;
13 
14 /**
15  * @version 1.0
16  * @ClassName TestStudent
17  * @Description Todo
18  * @Author WSC
19  * @Date 2019/7/1 14:43
20  **/
21 public class TestStudent {
22     public sqlSessionFactory sqlSessionFactory;
23     @Before
24     public void init(){
25         sqlSessionFactory = new sqlSessionFactoryBuilder().build(this.getClass().getClassLoader().getResourceAsstream("sqlMapperConfig.xml"));
26     }
27 
28     /**
29      * 查询所有
30      */
31     @Test
32     public void selectAll(){
33         sqlSession sqlSession = sqlSessionFactory.openSession();
34         StudentDao mapper = sqlSession.getMapper(StudentDao.class);
35         List<Student> all = mapper.find();
36         for(Student student:all){
37             System.out.println(student);
38         }
39         sqlSession.close();
40     }
41 
42     /**
43      * 删除通过id
44      */
45     @Test
46     public void dropStudent(){
47         sqlSession sqlSession = sqlSessionFactory.openSession();
48         StudentDao mapper = sqlSession.getMapper(StudentDao.class);
49         mapper.drop(15);
50         sqlSession.commit();
51         sqlSession.close();
52     }
53     @Test
54     public void addStudent(){
55         sqlSession sqlSession = sqlSessionFactory.openSession();
56         StudentDao mapper = sqlSession.getMapper(StudentDao.class);
57         Student student = new Student();
58         student.setStudentName("sqwe国");
59         student.setAge(20);
60         Date date = new Date();
61 //        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH-mm-ss");
62 //        String format = simpleDateFormat.format(date);
63 //        try {
64 //            Date parse = simpleDateFormat.parse(format);
65 //            System.out.println(parse);
66 //            student.setBoreDate(parse);
67 //        } catch (ParseException e) {
68 //            e.printstacktrace();
69 //        }
70         student.setBoreDate(date);
71         student.setClassNo(1);
72         mapper.add(student);
73         sqlSession.commit();
74         sqlSession.close();
75     }
76 }

test

mybatis (2) 的配置文件 及 简单的 test

相关推荐

mybatis (2) 的配置文件及简单的 test