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详解spring+springmvc+mybatis整合注解

2019年07月22日  | 移动技术网IT编程  | 我要评论

每天记录一点点，慢慢的成长，今天我们学习了ssm，这是我自己总结的笔记，大神勿喷！谢谢，主要代码！！ !

spring&springmvc&mybatis整合（注解）

1.jar包

2.引入web.xml文件

<context-param>
    <param-name>contextconfiglocation</param-name>
    <param-value>classpath:applicationcontext.xml</param-value>
  </context-param>
  <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>
    <init-param>
      <param-name>contextconfiglocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>*.action</url-pattern>
</servlet-mapping>

3.创建实体类

4.引入一个（类名）dao.xml

<update id="update" parametertype="accounting" >
    update accounting set money=#{money} where name=#{name}
  </update>
  <select id="findmoneybyname" parametertype="string" resulttype="accounting">
    select * from accounting where name=#{name}
</select>

5.创建一个（类名）dao

public void update(accounting a);
public accounting findmoneybyname(string name);

6.写service

public void remit(string from,string to,double money);

7.写serviceimpl

@service
public class accountserviceimpl implements accountservice {
  @autowired
  private accountdao ad;
  @override
  public void remit(string from, string to, double money) {
    accounting fromaccount=ad.findmoneybyname(from);
    fromaccount.setmoney(fromaccount.getmoney()-money);
    ad.update(fromaccount);
    accounting toaccount=ad.findmoneybyname(to);
    toaccount.setmoney(toaccount.getmoney()+money);
    ad.update(toaccount);
  }

}

8.引入applicationcontext.xml

<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemalocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.2.xsd 
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

  <!-- 加载db.properties文件中的内容，db.properties文件中key命名要有一定的特殊规则 -->
  <context:property-placeholder location="classpath:db.properties" />
  <!-- 配置数据源 ，dbcp -->

  <bean id="datasource" class="org.apache.commons.dbcp.basicdatasource"
    destroy-method="close">
    <property name="driverclassname" value="${jdbc.driver}" />
    <property name="url" value="${jdbc.url}" />
    <property name="username" value="${jdbc.username}" />
    <property name="password" value="${jdbc.password}" />
    <property name="maxactive" value="30" />
    <property name="maxidle" value="5" />
  </bean>
  <!-- sqlsessionfactory -->
  <bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean">
    <!-- 数据库连接池 -->
    <property name="datasource" ref="datasource" />
    <!-- 加载mybatis的全局配置文件 -->
    <property name="configlocation" value="classpath:sqlmapconfig.xml" />
  </bean>


  <bean id="transactionmanager" class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
    <property name="datasource" ref="datasource"/>
  </bean>
  <tx:advice id="txadvice" transaction-manager="transactionmanager">
    <tx:attributes>
      <tx:method name="*" propagation="required"/>
    </tx:attributes>
  </tx:advice>
  <aop:config>
    <aop:advisor advice-ref="txadvice" pointcut="execution(* service..*.*(..))"/>
  </aop:config>


  <!-- mapper扫描器 -->
  <bean class="org.mybatis.spring.mapper.mapperscannerconfigurer">
    <!-- 扫描包路径，如果需要扫描多个包，中间使用半角逗号隔开 -->
    <property name="basepackage" value="dao"></property>
    <property name="sqlsessionfactorybeanname" value="sqlsessionfactory" />
  </bean>

</beans>

9.引入db.properties文件和log4j.properties文件

10.引入springmvc.xml文件

<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemalocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.2.xsd 
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">
  <mvc:annotation-driven></mvc:annotation-driven>
  <context:component-scan base-package="action"></context:component-scan>
  <context:component-scan base-package="service"></context:component-scan>
</beans>

11.jsp页面编写

//index.jsp:
 <form action="account_execute.action" method="post">
  汇款人：<input type="text" name="from"/>
  收款人：<input type="text" name="to"/>
  钱数：<input type="text" name="money"/>
  <input type="submit"/>
 </form>
//message.jsp
${message }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。

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