1.Spring和MyBatis整合 1)导入spring-mybatis.jar 2)整合 a)org.mybatis.spring.SqlSessionFactoryBean 1)dataSource 2)myBatis的配置文件 3)事务管理器用DataSourceTransctionManager 4)dao层 1)SqlSessoinTemplate 2)SqlSessionDaoSupport 5)自动生成dao层的代理类 1)org.mybatis.spring.mapper.MapperScannerConfigurer 1)接口的全全类名 2)配置sqlSessionFactory名字
开发一个全新的项目
1、导入jar包
Mybatis的jar包
asm-4.2.jar
cglib-3.1.jar
commons-logging-1.2.jar
log4j-1.2.17.jar
log4j-api-2.2.jar
log4j-core-2.2.jar
mybatis-3.3.0.jar
mysql-connector-java.jar
slf4j-api-1.7.12.jar
slf4j-log4j12-1.7.12.jar
Spring+SpringMVC+ORM
spring-beans-3.2.0.RELEASE.jar
spring-context-3.2.0.RELEASE.jar
spring-core-3.2.0.RELEASE.jar
spring-expression-3.2.0.RELEASE.jar
spring-jdbc-3.2.0.RELEASE.jar
spring-orm-3.2.0.RELEASE.jar
spring-test-3.2.0.RELEASE.jar
spring-web-3.2.0.RELEASE.jar
spring-webmvc-3.2.0.RELEASE.jar
aop+tx
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.aspectj.tools-1.6.6.RELEASE.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
spring-aop-3.2.0.RELEASE.jar
spring-aspects-3.2.0.RELEASE.jar
spring-tx-3.2.0.RELEASE.jar
jackson
jackson-annotations-2.5.4.jar
jackson-core-2.5.4.jar
jackson-databind-2.5.4.jar
spring和mybatis整合需要的jar包
mybatis-spring-1.2.0.jar
c3p0连接池
com.springsource.com.mchange.v2.c3p0-0.9.1.2.jar
文件上传
com.springsource.org.apache.commons.fileupload-1.2.0.jar
com.springsource.org.apache.commons.io-1.4.0.jar
2、导入相关的配置文件
3、关键配置
(1) web.xml:配置过滤器,监听器,核心控制器,
<filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 确定Spring配置文件的位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 在Web容器启动的时候初始化Spring容器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 指定SpringMVC的配置文件路径 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-servlet.xml</param-value> </init-param> <!-- 加载servlet优先级,数值越小优先级越高 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
(2)springmvc.xml:
1.指定需要扫描的控制器
2.配置视图解析器
3.文件上传解析器
4.json解析器
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 开启注解驱动 --> <mvc:annotation-driven /> <!-- 忽略静态资源 --> <mvc:resources location="/js/*" mapping="/js/**"></mvc:resources> <!-- 开启包扫描 --> <context:component-scan base-package="com.qf"></context:component-scan> <!-- 配置视图解析器 --> <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 用jstl事务解析器 --> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <!-- 将视图名 渲染后视图的前缀 --> <property name="prefix" value="/" /> <!-- 渲染后视图的后缀 --> <property name="suffix" value=".jsp" /> </bean> <!-- 文件上传配置 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 设置编码格式 --> <property name="defaultEncoding" value="utf-8"></property> <!-- 设置文件大小 --> <property name="maxUploadSize" value="20971520"></property> </bean> <!-- 配置支持JSON格式的转换器 --> <bean id="jsonConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" /> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="jsonConverter" /> </list> </property> </bean> </beans>
(3)applicationContext.xml:
开启包扫描
配置数据源,
整合mybatis,
扫描Service
Dao(采用注解方式实现依赖),
配置事务管理器
事务的策略
事务范围
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 注解实现必须要开启包扫描 --> <context:component-scan base-package="com.qf"></context:component-scan> <context:property-placeholder location="classpath:jdbc.properties" /> <!-- 实例化数据源 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <!-- ${属性文件中的key} --> <property name="user" value="${jdbc.name}"></property> <property name="password" value="${jdbc.password}"></property> <property name="jdbcUrl" value="${jdbc.url}"></property> <property name="driverClass" value="${jdbc.driver}"></property> </bean> <!-- Spring整合MyBatis --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 数据源 --> <property name="dataSource" ref="dataSource"></property> <!-- 指定MyBatis配置文件 --> <property name="configLocation" value="classpath:mybatis-config.xml"></property> </bean> <!-- 定义事务管理器 --> <bean id="tx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 事务的策略 --> <tx:advice id="txAdvice" transaction-manager="tx"> <tx:attributes> <tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED" /> <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" /> <tx:method name="delete*" isolation="DEFAULT" propagation="REQUIRED" /> <tx:method name="save*" isolation="DEFAULT" propagation="REQUIRED" /> <tx:method name="create*" isolation="DEFAULT" propagation="REQUIRED" /> <tx:method name="find*" isolation="DEFAULT" propagation="REQUIRED" read-only="true"/> <tx:method name="get*" isolation="DEFAULT" propagation="REQUIRED" read-only="true"/> <tx:method name="select*" isolation="DEFAULT" propagation="REQUIRED" read-only="true"/> </tx:attributes> </tx:advice> <!-- 事务范围 --> <aop:config> <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.qf.service..*.*(..))" /> </aop:config> </beans>
(4)spring整合mybatis
导入mybatis-spring-1.2.0.jar
mybatis-config.xml 配置别名
<?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> <typeAliases> <package name="com.qf.entity"/> </typeAliases> </configuration>
0.数据库
1.创建项目
2.建包建配置文件
com.qf.entity
com.qf.dao
com.qf.mapper
com.qf.utils
mybatis-config.xml
3.con.qf.entity包中创建实体类
package com.qf.entity; import java.security.KeyStore.PrivateKeyEntry; public class User { private Integer id; private String name; private String password;
package com.qf.entity; public class Account { private Integer id; private String name; private Double balance; private String inName; private String outName; private Double money; }
package com.qf.entity; import java.util.List; public class Page { /** * 当前页 */ private Integer currentPage = 1; /** * 每页显示的行数 */ private Integer pageSize = 3; /** * 总页数 */ private Integer totalPage; /** * 总条数 */ private Integer totalCount; /** * 展示数据 */ private List<?> list; /** * 查询路径 */ private String url; public void setTotalCount(Integer totalCount) { this.totalCount = totalCount; this.totalPage = totalCount % pageSize == 0 ? totalCount / pageSize : (totalCount/ pageSize) + 1; } }
4.con.qf.dao包中创建接口
公共接口
package com.qf.dao; import java.util.List; public interface IBaseDao<T> { public int add(T t); public int update(T t); public int delete(Integer ID); public T getById(Integer id); public int getCount(); public List<T> getList(Integer startIndex,Integer size); }
package com.qf.dao; import com.qf.entity.User; public interface IUserDao extends IBaseDao<User>{ }
package com.qf.dao; import com.qf.entity.Account; public interface IAccountDao extends IBaseDao<Account> { /** * 进账 * @param name 用户名 * @param moeny 金额 */ public void in(String name,Double moeny); /** * 出账 * @param name 用户名 * @param moeny 金额 */ public void out(String name,Double moeny); }
5.con.qf.dao.impl包创建dao层的实现层
公共实现类
package com.qf.dao.impl; import java.lang.reflect.ParameterizedType; import java.lang.reflect.Type; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionTemplate; import org.mybatis.spring.support.SqlSessionDaoSupport; import org.springframework.beans.factory.annotation.Autowired; import com.qf.dao.IBaseDao; public class BaseDaoImpl<T> extends SqlSessionDaoSupport implements IBaseDao<T> { private Class<T> entity; public BaseDaoImpl() { ParameterizedType parameterizedType = (ParameterizedType) this.getClass().getGenericSuperclass(); Type[] actualTypeArguments = parameterizedType.getActualTypeArguments(); entity = (Class<T>) actualTypeArguments[0]; } @Override public int add(T t) { return getSqlSession().insert("com.qf.dao.I" + entity.getSimpleName() + "Dao.add", t); } @Override public int update(T t) { return getSqlSession().update("com.qf.dao.I" + entity.getSimpleName() + "Dao.update", t); } @Override public int delete(Integer id) { return getSqlSession().delete("com.qf.dao.I" + entity.getSimpleName() + "Dao.delete", id); } @Override public T getById(Integer id) { return getSqlSession().selectOne("com.qf.dao.I" + entity.getSimpleName() + "Dao.getById", id); } @Override public int getCount() { return getSqlSession().selectOne("com.qf.dao.I" + entity.getSimpleName() + "Dao.getCount"); } @Override public List<T> getList(Integer startIndex, Integer size) { Map<String, Object> map = new HashMap<String, Object>(); map.put("startIndex", startIndex); map.put("size", size); return getSqlSession().selectList("com.qf.dao.I" + entity.getSimpleName() + "Dao.getList", map); } }
package com.qf.dao.impl; import org.apache.ibatis.session.SqlSessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.qf.dao.IUserDao; import com.qf.entity.User; @Repository public class UserDaoImpl extends BaseDaoImpl<User> implements IUserDao { @Autowired @Override public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) { super.setSqlSessionFactory(sqlSessionFactory); } }
package com.qf.dao.impl; import org.apache.ibatis.session.SqlSessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.qf.dao.IAccountDao; import com.qf.entity.Account; @Repository public class AccountDaoImpl extends BaseDaoImpl<Account> implements IAccountDao { @Override public void in(String name, Double moeny) { } @Override public void out(String name, Double moeny) { } @Autowired @Override public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) { super.setSqlSessionFactory(sqlSessionFactory); } }
6.con.qf.biz包中创建接口
公共接口
7.con.qf.biz.impl包创建biz层的实现层
公共实现类
8.com.qf.contrlller包
9.配置jdbc.properties配置文件
10配置mybatis-config.xml配置文件
11.com.qf.mapper包创建接口的映射文件
12.在mybatis-config.xml里面读取Mapper文件
13.com.qf.util工具类
14.页面