springboot第一个项目【mybatis】

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
">
<!-- 自动扫描com.zll.springboot.demo包，包中用了@controller注解的类是控制器 -->
<context:component-scan base-package="com.zll.springboot.demo" />
<!--引入数据库配置文件-->
<import resource="spring-db.xml"/>
</beans>

 1 #数据库连接：地址、用户名、密码
 2 #数据库地址后加上一些编码格式，使得不出现乱码
 3 spring.datasource.url=jdbc:mysql://url:port/database_name?useUnicode=true&characterEncoding=utf8&useOldAliasMetadataBehavior=true&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true
 4 spring.datasource.username=user_name
 5 spring.datasource.password=user_password
 6 #driver
 7 spring.datasource.driverClassName=com.mysql.jdbc.Driver
 8 #映射文件所在地址，表示resources/mapper/*.xml
 9 mybatis.mapperLocations=classpath:mapper/*.xml
10 server.port=8011
11 server.session.timeout=10
12 server.tomcat.uri-encoding=UTF-8

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3 xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
 4 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
 5 http://www.springframework.org/schema/context
 6 http://www.springframework.org/schema/context/spring-context-3.2.xsd
 7 http://www.springframework.org/schema/tx
 8 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
 9 
10 <!-- 加载配置JDBC文件 -->
11 <context:property-placeholder location="classpath:application.properties" />
12 <!-- 数据源 ${jdbc.url}这个要和上面application.properties中的一样 -->
13 <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
14 <property name="driverClassName">
15 <value>${jdbc.driverClassName}</value>
16 </property>
17 <property name="url">
18 <value>${jdbc.url}</value>
19 </property>
20 <property name="username">
21 <value>${jdbc.username}</value>
22 </property>
23 <property name="password">
24 <value>${jdbc.password}</value>
25 </property>
26 </bean>
27 
28 <!-- 开启注解配置 即Autowried -->
29 <!-- <context:annotation-config/> -->
30 <!--其实component-scan 就有了annotation-config的功能即把需要的类注册到了spring容器中 -->
31 <context:component-scan base-package="cn.zll.springboottest.dao" />
32 
33 <!-- 在使用mybatis时 spring使用sqlsessionFactoryBean 来管理mybatis的sqlsessionFactory -->
34 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
35 <property name="dataSource" ref="dataSource" />
36 <!-- mybatis配置文件路径 -->
37 <property name="configLocation" value="" />
38 <!-- 实体类映射文件路径,这里只有一个就写死了，多个可以使用mybatis/*.xml来替代 -->
39 <property name="mapperLocations" value="classpath:mapper/*.xml" />
40 </bean>
41 
42 <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
43 <constructor-arg index="0">
44 <ref bean="sqlSessionFactory" />
45 </constructor-arg>
46 </bean>
47 
48 <!--动态代理实现 不用写dao的实现 -->
49 <bean id="MapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
50 <!-- 这里的basePackage 指定了dao层接口路劲，这里的dao接口不用自己实现 -->
51 <property name="basePackage" value="com.wacai.qa.springboot.demo" />
52 <!-- 如果只有一个数据源的话可以不用指定，但是如果有多个数据源的话必须要指定 -->
53 <!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> -->
54 <!--直接制定了sqlsessionTemplate名称，这个和上面的其实是一样的 -->
55 <property name="sqlSessionTemplateBeanName" value="sqlSession" />
56 </bean>
57 
58 <!--事务管理器 -->
59 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
60 <property name="dataSource" ref="dataSource" />
61 </bean>
62 <!-- 使用全注释事务 -->
63 <tx:annotation-driven transaction-manager="transactionManager" />
64 </beans>

 1 <dependency>
 2     <groupId>org.springframework</groupId>
 3     <artifactId>spring-jdbc</artifactId>
 4     <version>5.0.1.RELEASE</version>
 5 </dependency>
 6 <dependency>
 7     <groupId>org.mybatis</groupId>
 8     <artifactId>mybatis</artifactId>
 9     <version>3.4.0</version>
10 </dependency>
11 <dependency>
12     <groupId>org.mybatis</groupId>
13     <artifactId>mybatis-spring</artifactId>
14     <version>1.3.0</version>
15 </dependency>

1 <dependency>
2     <groupId>mysql</groupId>
3     <artifactId>mysql-connector-java</artifactId>
4     <version>6.0.4</version>
5 </dependency>

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 3 <!--命名空间dao-->
 4 <mapper namespace="com.springboot.demo.dao.UserDao">
 5     <!--sql结果与entity的映射-->
 6     <resultMap id="userResult" type="com.springboot.demo.entity.User">
 7         <id column="id" property="id" jdbcType="BIGINT"/>
 8         <result column="nick_name" property="nickName" jdbcType="VARCHAR"/>
 9         <result column="email" property="email" jdbcType="VARCHAR"/>
10         <result column="phone_number" property="phoneNumber" jdbcType="VARCHAR"/>
11     </resultMap>
12     <!--数据库基本字段-->
13     <sql id="Base_Column_List">
14     id, nick_name, email, phone_number
15     </sql>
16     <!--写sql语句，不同的方法用不同标签，如insert/select/delete等-->
17     <insert id="insert">
18         INSERT INTO user (nick_name, email, phone_number) VALUES ( #{nickName},#{email}, #{phoneNumber})
19     </insert>
20     <!--select会返回结果-->
21     <select id="query" resultMap="userResult">
22         SELECT
23         <include refid="Base_Column_List"/>
24         from user where id=#{id}
25     </select>
26 </mapper>    

1 <plugin>
2     <groupId>org.mybatis.generator</groupId>
3     <artifactId>mybatis-generator-maven-plugin</artifactId>
4     <version>1.3.5</version>
5     <configuration>
6         <verbose>true</verbose>
7         <overwrite>true</overwrite>
8     </configuration>
9 </plugin>

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE generatorConfiguration
 3 PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
 4 "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 5 <generatorConfiguration>
 6     <!--mysql 连接数据库jar 这里选择自己本地位置，可以在external Libraries中查找位置和版本-->
 7     <classPathEntry location="/Users/zll/.m2/repository/mysql/mysql-connector-java/5.1.39/mysql-connector-java-5.1.39.jar" />
 8     <context id="testTables" targetRuntime="MyBatis3">
 9         <commentGenerator>
10             <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
11             <property name="suppressAllComments" value="true" />
12         </commentGenerator>
13         <!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
14         <jdbcConnection driverClass="com.mysql.jdbc.Driver"
15 connectionURL="jdbc:mysql://url:port/databasename" userId="user_name"
16 password="user_password">
17         </jdbcConnection>
18         <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和NUMERIC 类型解析为java.math.BigDecimal -->
19         <javaTypeResolver>
20             <property name="forceBigDecimals" value="false" />
21         </javaTypeResolver>
22 
23         <!--下面是几个要生成的文件的位置配置-->
24         <!--生成entity，位置targetProject/targetPackage -->
25         <javaModelGenerator targetPackage="com.zll.springboot.demo.entity" targetProject="src/main/java">
26             <!-- enableSubPackages:是否让schema作为包的后缀 -->
27             <property name="enableSubPackages" value="false" />
28             <!-- 从数据库返回的值被清理前后的空格 -->
29             <property name="trimStrings" value="true" />
30         </javaModelGenerator>
31         <!-- targetProject:mapper映射文件生成的位置。如果maven工程只是单独的一个工程，targetProject="src/main/java"。若果maven工程是分模块的工程，targetProject="所属模块的名称"，例如：targetProject="ecps-manager-mapper"，下同-->
32         <sqlMapGenerator targetPackage="com.zll.springboot.demo.persistence"
33 targetProject="src/main/java">
34             <!-- enableSubPackages:是否让schema作为包的后缀 -->
35             <property name="enableSubPackages" value="false" />
36         </sqlMapGenerator>
37         <!-- targetPackage：mapper接口生成的位置 -->
38         <javaClientGenerator type="XMLMAPPER" targetPackage="com.zll.springboot.demo.persistence" targetProject="src/main/java">
39             <!-- enableSubPackages:是否让schema作为包的后缀 -->
40             <property name="enableSubPackages" value="false" />
41         </javaClientGenerator>
42         <!-- 指定数据库表 这里写要转换的表名，比如下面写了baidu_region，那就会将这个表转换过来-->
43         <table schema="" tableName="baidu_region"></table>
44     </context>
45 </generatorConfiguration>