spring mvc 整合mybatis

spring mvc 整合mybatis

1. application.properties
# jdbc configure
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/xxx?characterEncoding=utf-8&useUnicode=true&autoReconnect=true&
jdbc.username=root
jdbc.password=root

2.spring-demo.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:util="http://www.springframework.org/schema/util" xmlns:task="http://www.springframework.org/schema/task"
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 http://www.springframework.org/schema/aop/spring-aop.xsd
          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
          http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
          http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
          http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
          http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd">



<!-- 引入mvc配置 -->
<import resource="classpath:META-INF/configuration/spring-demo-mvc.xml" />

<!-- 引入数据库的配置文件 -->
<context:property-placeholder ignore-resource-not-found="true"
location="classpath:/META-INF/configuration/environments/application.properties" />




<!-- 数据库连接配置 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>

<!--把mybatis SqlSessionFactory的创建交由spring管理 -->
<!-- mybatis配置 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:META-INF/configuration/mapper/mybatis-config.xml" />
<property name="dataSource" ref="dataSource" />
<property name="typeAliasesPackage" value="com.xyh.demo.entity" />
<property name="mapperLocations">
<list>
<value>classpath:/META-INF/configuration/mapper/*Mapper.xml</value>
</list>
</property>
</bean>

<!--把mybatis的事务交由spring去管理 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" /><!--注意：此处的数据源要与sqlSessionFactory中的dataSource相同 -->
</bean>

<!-- scan for mappers and let them be autowired -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.xyh.demo.modules.mybatis*" /><!---根据自己的项目路径配置 -->
</bean>


<!--启用spring @Transactional注解 -->

<tx:annotation-driven />


</beans>

3.spring-demo-mvc.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd">


<!-- 将在Controller返回的ModelAndView的基础上,加上目录前缀/WEB-INF/views/, 加后文件名称后缀.jsp,由此等待下个页面如/WEB-INF/views/showCats.jsp -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="contentType" value="text/html" />
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>


<!-- 基于注解的配置 -->
<mvc:annotation-driven />


<!-- 在xml配置了这个标签后，spring可以自动去扫描base-pack下面或者子包下面的java文件，如果扫描到有@Component @Controller@Service等这些注解的类，则把这些类注册为bean 注意：如果配置了<context:component-scan>那么<context:annotation-config/>标签就可以不用再xml中配置了，因为前者包含了后者。 -->
<context:component-scan base-package="com.xyh.demo" />
</beans>

4.mybatis-config.xml
<?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>
<!-- <properties resource="jdbc.properties" /> -->
<settings>
<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。默认：true -->
<setting name="lazyLoadingEnabled" value="true" />
<!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载 -->
<setting name="aggressiveLazyLoading" value="false" />
</settings>

<!--//此处的配置不再需要 <environments>...</environments> -->



</configuration>

5. User 实体
/**
* 用户实体
*
* @author Administrator
*
*/
public class User extends IdEndity {
// table中
private String name;
private String pass;
private String avatarUrl;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getPass() {
return pass;
}

public void setPass(String pass) {
this.pass = pass;
}

public String getAvatarUrl() {
return avatarUrl;
}

public void setAvatarUrl(String avatarUrl) {
this.avatarUrl = avatarUrl;
}

}

6. /**
* 用户的mybatis
*
* @author Administrator
*
*/
public interface UserRepository {
User getUserByUserName(@Param("name") String name);
}
7.UserMapper.xml

<?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.xyh.demo.modules.mybatis.UserRepository">

<select id="getUserByUserName" parameterType="string" resultType="User">
select
u.name as name,
u.pass as pass,
u.avatar_url as avatarUrl
from t_user u
where u.name = #{name}
</select>
</mapper>

8.controller

@Controller
@RequestMapping("/general")
public class GeneralController {
@Autowired
private UserService userService;

@RequestMapping(value = "hello")
public String hello(Model model) {
String name = "admin";
User user = userService.getUserByName(name);

model.addAttribute("hello", "Hi,SpringMVC");
if (null == user) {
model.addAttribute("userName", "user is null");
} else {
model.addAttribute("userName", user.getName());
}

return "/general/hello";

}

}
9.service
public interface UserService {
User getUserByName(String name);

}
10.serviceImpl
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserRepository userRepository;

public User getUserByName(String name) {
User user = userRepository.getUserByUserName(name);
return user;
}
}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xyh.study</groupId>
<artifactId>demo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>demo Maven Webapp</name>
<url>http://maven.apache.org</url>

<dependencies>
<!-- 测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- spring jar包,只需要写一个spring-webmvc 就可以把相关的jar 下载下来 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<!-- spring 的测试 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>

<!-- jstl jar包 ,支持在jsp中的c标签 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>

<!-- servlet,支持写jsp -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>

<!-- jackson的jar包 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.8</version>
<type>jar</type>
<scope>compile</scope>
</dependency>

<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-lgpl</artifactId>
<version>1.9.8</version>
<type>jar</type>
<scope>compile</scope>
</dependency>

<!-- commons lang -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.0</version>
</dependency>

<!-- 日志 -->

<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.9</version>
</dependency>

<!-- 数据库 -->

<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>



<!-- 与shiro 集成 -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.2.3</version>
</dependency>

<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<!-- spring 与mybatis 集成 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>


</dependencies>


<build>
<finalName>demo</finalName>
</build>
</project>