记录一下Maven整合spring，hibernate，strusts2我程序中出的bug
记录一下Maven整合spring，hibernate，strusts2我程序中出的bug
action类如下
package com.itheima.movenweb.action; import java.util.List; import org.apache.struts2.ServletActionContext; import org.junit.Test; import com.itheima.movenweb.domain.Dep; import com.itheima.movenweb.service.Service; import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven; public class Action extends ActionSupport { private Service service; public Service getService() { return service; } public void setService(Service service) { this.service = service; } public String findDepList(){ System.out.println(1); List<Dep> list = service.dolist(); System.out.println(service); ServletActionContext.getRequest().setAttribute("list", list); return "success"; } }
serviceImpl如下：
package com.itheima.movenweb.serviceImpl; import java.util.List; import org.junit.Test; import com.itheima.movenweb.dao.Dao; import com.itheima.movenweb.domain.Dep; import com.itheima.movenweb.service.Service; public class ServiceImpl implements Service { private Dao dao; public Dao getDao() { return dao; } public void setDao(Dao dao) { this.dao = dao; } @Override public List<Dep> dolist() { System.out.println(2); List<Dep> list = dao.dolist(); return list; } }
daoImpl如下：
package com.itheima.movenweb.daoImpl; import java.util.List; import org.springframework.orm.hibernate5.support.HibernateDaoSupport; import com.itheima.movenweb.dao.Dao; import com.itheima.movenweb.domain.Dep; public class DaoImpl extends HibernateDaoSupport implements Dao{ @Override public List<Dep> dolist() { System.out.println(3); List<Dep> list = (List<Dep>) this.getHibernateTemplate().find("from Dep"); return list; } }
applicationContext.xml 如下：
<?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: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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.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 "> <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"/> </bean> <!-- 在这里方法上开启事务，不要搞错了 --> <tx:advice id="advice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="do*" propagation="REQUIRED" /> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="update*" propagation="REQUIRED"/> <tx:method name="save*" propagation="REQUIRED"/> <tx:method name="delete*" propagation="REQUIRED"/> <tx:method name="list" propagation="REQUIRED"/> <tx:method name="*" read-only="true"/> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="serviceMethod" expression="execution(* com.itheima.movenweb.serviceImpl.*.*(..))"/> <aop:advisor pointcut-ref="serviceMethod" advice-ref="advice" /> </aop:config> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <!-- <property name="url" value="jdbc:mysql://127.0.0.1:3306/movenwebtest?useUnicode=true&characterEncoding=UTF8"/> --> <property name="url" value="jdbc:mysql:///movenwebtest11?useUnicode=true&characterEncoding=UTF8"/> <property name="username" value="root"/> <property name="password" value="123"/> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">false</prop> </props> </property> <property name="mappingLocations"> <value>classpath:com/itheima/movenweb/domain/*.hbm.xml</value> </property> </bean> <!-- 部门数据访问类 --> <bean id="depDao" class="com.itheima.movenweb.daoImpl.DaoImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 部门业务逻辑类 --> <bean id="depService" class="com.itheima.movenweb.serviceImpl.ServiceImpl"> <property name="dao" ref="depDao"></property> </bean> <!-- 部门action --> <bean id="depAction" class="com.itheima.movenweb.action.Action"> <property name="service" ref="depService"></property> </bean> </beans>
struts.xml 如下：
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="default" namespace="/" extends="struts-default"> <action name="index" class="depAction" method="findDepList"> <result name="success">/success.jsp</result> </action> </package> </struts>
还有hibernate的配置文件，我报错的原因和他没有关系，我就不放在这里了；以上的代码是修改后正确的代码；
下面我放入我错误的代码，第一个错误在struts2的配置文件，我将class的配置信息配成了类的全路径，然后报空指针异常，这里class的路径应该写已经配置在applicationContext.xml中的action的id的值
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="default" namespace="/" extends="struts-default">
<action name="index" class="com.itheima.movenweb.domain.Dep" method="findDepList">
<result name="success">/success.jsp</result>
</action>
</package>
</struts>
然后又出了一个问题：如下
我的action中的输出语句输出了，但是我的数据库没有连接上，我去查询我的数据库，发现我的数据库名字是“mavenwebtest11；” 对，你没有看错，我的数据库名字多加了“；”我发现我在创建数据库后本来是想加上英文状态的结束符号，结果加成了中文的结束符号，然后就被一起写进了数据库的名字中，大写的尴尬呀，作为我的第一篇博客，谨以此来激励自己不断学习，不断成长
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