Spring的环境配置

忘是亡心i 2023-10-01 19:03 4阅读 0赞

1.  依赖注入
    
        
                <dependency>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                    <version>4.13.1</version>
                    <scope>test</scope>
                </dependency>
        
                <dependency>
                    <groupId>mysql</groupId>
                    <artifactId>mysql-connector-java</artifactId>
                    <version>8.0.15</version>
                </dependency>
        
                <dependency>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis</artifactId>
                    <version>3.5.7</version>
                </dependency>
        
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-webmvc</artifactId>
                    <version>5.3.15</version>
                </dependency>
        
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-jdbc</artifactId>
                    <version>5.3.15</version>
                </dependency>
        
                <dependency>
                    <groupId>org.aspectj</groupId>
                    <artifactId>aspectjweaver</artifactId>
                    <version>1.9.7</version>
                </dependency>
        
                <dependency>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis-spring</artifactId>
                    <version>2.0.6</version>
                </dependency>
        
                <dependency>
                    <groupId>org.projectlombok</groupId>
                    <artifactId>lombok</artifactId>
                    <version>1.18.20</version>
                </dependency>
            </dependencies>
        
            
            <build>
                <resources>
                    <resource>
                        <directory>src/main/resources</directory>
                        <includes>
                            <include>**/*.properties</include>
                            <include>**/*.xml</include>
                        </includes>
                    </resource>
                    <resource>
                        <directory>src/main/java</directory>
                        <includes>
                            <include>**/*.properties</include>
                            <include>**/*.xml</include>
                        </includes>
                        <filtering>true</filtering>
                    </resource>
                </resources>
            </build>
2.  创建实体类
    
        //使用lombok的注解进行开发
        @Data
        @AllArgsConstructor
        public class User {
              
            private int id;
            private String name;
            private String pwd;
        }
3.  创建Dao层接口
    
        public interface UserMapper {
              
            public List<User> queryUser();
            public int addUser(User user);
            public int deleteUser(int id);
        }
4.  创建Dao层接口xml配置文件
    
        <?xml version="1.0" encoding="UTF8" ?>
        <!DOCTYPE mapper
                PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
        
        <mapper namespace="com.lzj.dao.UserMapper">
            
            
            <select id="queryUser" resultType="user">
                select * from mybatis.user
            </select>
            <insert id="addUser" parameterType="com.lzj.entity.User">
                insert into mybatis.user (id,name,pwd) value(#{id},#{name},#{pwd})
            </insert>
            <delete id="deleteUser" parameterType="int">
                delete from mybatis.user where id=#{id}
            </delete>
        </mapper>
5.  创建Dao层接口实现类
    
        //通过继承SqlSessionDaoSupport的方式来获取sqlSession
        public class UserMapperImpl extends SqlSessionDaoSupport implements UserMapper{
              
            @Override
            public List<User> queryUser() {
              
                User user = new User(7, "小磊", "12346");
                UserMapper mapper = getSqlSession().getMapper(UserMapper.class);
                mapper.addUser(user);
                mapper.deleteUser(7);
                return mapper.queryUser();
        
            }
        
            @Override
            public int addUser(User user) {
              
                return getSqlSession().getMapper(UserMapper.class).addUser(user);
            }
        
            @Override
            public int deleteUser(int id) {
              
                return getSqlSession().getMapper(UserMapper.class).deleteUser(id);
            }
        }
6.  创建配置文件mybatis-config
    
        <?xml version="1.0" encoding="UTF8" ?>
        <!DOCTYPE configuration
                PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
                "http://mybatis.org/dtd/mybatis-3-config.dtd">
        <configuration>
            <settings>
        
                <setting name="logImpl" value="STDOUT_LOGGING"/>
        
                <setting name="cacheEnabled" value="true"/>
        
        
                <setting name="mapUnderscoreToCamelCase" value="true"/>
            </settings>
        
            <typeAliases>
                <package name="com.lzj.entity"/>
            </typeAliases>
        </configuration>
7.  创建配置文件spring-dao.xml
    
        <?xml version="1.0" encoding="UTF-8"?>
        <beans xmlns="http://www.springframework.org/schema/beans"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
               xsi:schemaLocation="http://www.springframework.org/schema/beans
               http://www.springframework.org/schema/beans/spring-beans.xsd
               http://www.springframework.org/schema/tx
               http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
        
        
            <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
                <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
                <property name="url"
                          value="jdbc:mysql://localhost:3306/mybatis?useSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            </bean>
        
        
            <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
                <property name="dataSource" ref="dataSource" />
        
                <property name="configLocation" value="classpath:mybatis-config.xml"/>
                <property name="mapperLocations" value="classpath:com/lzj/dao/*.xml"/>
            </bean>
        
        
            <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        
                <constructor-arg index="0" ref="sqlSessionFactory"/>
            </bean>
        
        
            <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                <constructor-arg ref="dataSource" />
            </bean>
        
        
            <tx:advice id="txAdvice" transaction-manager="transactionManager">
                <tx:attributes>
                    <tx:method name="add" propagation="REQUIRED"/>
                    <tx:method name="delete" propagation="REQUIRED"/>
                    <tx:method name="update" propagation="REQUIRED"/>
                    <tx:method name="query" read-only="true"/>
                    <tx:method name="*" propagation="REQUIRED"/>
                </tx:attributes>
            </tx:advice>
        
            <aop:config>
                <aop:pointcut id="txPointCut" expression="execution(* com.lzj.dao.*.*(..))"/>
                <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
            </aop:config>
        
        </beans>
8.  创建配置文件mybatis-config.xml
    
        <?xml version="1.0" encoding="UTF8"?>
        <beans xmlns="http://www.springframework.org/schema/beans"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xmlns:context="http://www.springframework.org/schema/context"
               xsi:schemaLocation="http://www.springframework.org/schema/beans
                https://www.springframework.org/schema/beans/spring-beans.xsd
                http://www.springframework.org/schema/context
                https://www.springframework.org/schema/context/spring-context.xsd">
        
            
            <context:component-scan base-package="com.lzj.dao"></context:component-scan>
        
            <context:annotation-config/>
        
            <import resource="spring-dao.xml"></import>
        
        
            <bean id="userMapper" class="com.lzj.dao.UserMapperImpl">
                <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
            </bean>
        
        </beans>
9.  测试
    
        public class MyTest {
              
            @Test
            public void queryUserTest2(){
              
                ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
                UserMapper userMapper = context.getBean("userMapper", UserMapper.class);
                List<User> users = userMapper.queryUser();
                for (User user : users) {
              
                    System.out.println(user);
                }
            }
        }