总结一下最近整合spring4和hibernate4遇到的问题

刚开始学习javaee,把自己遇到的主要问题总结一下,做个笔记,也希望给别人带来帮助,spring和hibernate均是>基于当前最新版本的上一个版本.4.3.7和4.3.11

遇到的问题:

配置文件问题

在配置hibernate的session工厂的时候,读取不到.hbm.xml文件的原因大致如下:

这是我的配置
<property name="mappingLocations" value="classpath:estate/entity/database/*.hbm.xml"/>

1. 少加了classpath:
2. 如果是用的maven进行项目的依赖管理的话,检查maven是否将资源文件放入了输出目录里面,即需要对pom.xml文件进行如下配置,(我是这个问题).

  <build>
        <finalName>testfinalName>
        <resources>
            <resource>
                <directory>src/main/resourcesdirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                    <include>**/*.tldinclude>
                includes>
                <filtering>falsefiltering>
            resource>
            <resource>
                <directory>src/main/javadirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                    <include>**/*.tldinclude>
                includes>
                <filtering>falsefiltering>
            resource>
        resources>
    build>

spring不能对hibernate进行事务管理:我百度后发现出现这个问题的原因很多
1. 没有在web.xml里面配置OpenSessionInViewFilter拦截器将请求的url和hibernate会话绑定在一起
2. 在配置spring-servlet扫描的报的时候将事务管理的包页扫描进去了,导致spring不能进行事务管理,(好像是新版本的问题)需要进行如下配置

    <context:component-scan base-package="estate">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        <context:exclude-filter type="regex" expression=".*ServiceImpl"/>
    context:component-scan>

代码编写问题

spring事务管理后抛出的异常不能再service和dao里面捕捉到
我的解决方案是在控制器里面加入捕捉异常的代码:

try
        {
            noticeService.add(noticeEntity);
        }
        catch (Exception e)
        {
            LogUtil.E("上传公告图片写入数据库失败");
            basicJson.getErrorMsg().setCode("100103");
            basicJson.getErrorMsg().setDescription("公告增加失败,请检查您的输入");
            return basicJson;
        }

google了一下,发现有其他的方法可以在service和dao里面捕捉异常,但是我觉得spring这样的设计比较合理,在业务逻辑层进行处理,而service只提供业务逻辑需要调用的方法.

参考

项目目录结构

配置文件

web.xml

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:config/applicationContext*.xmlparam-value>
    context-param>
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListenerlistener-class>
    listener>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

    
    <context-param>
        <param-name>webAppRootKeyparam-name>
        <param-value>WEB.ROOTparam-value>
    context-param>
    <listener>
        <listener-class>org.springframework.web.util.WebAppRootListenerlistener-class>
    listener>

    
    <servlet>
        <servlet-name>estateOAservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:config/spring-servlet.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>estateOAservlet-name>
        <url-pattern>/url-pattern>
    servlet-mapping>

    
    <filter>
        <filter-name>openSessionfilter-name>
        <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilterfilter-class>
        <init-param>
            <param-name>singleSessionparam-name>
            <param-value>trueparam-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>openSessionfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

    
    <filter>
        <filter-name>springSecurityFilterChainfilter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxyfilter-class>
    filter>
    <filter-mapping>
        <filter-name>springSecurityFilterChainfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

web-app>

spring上下文

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.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-3.0.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    
    <import resource="validator-bean.xml"/>

    <context:component-scan base-package="estate"/>

    
    <context:property-placeholder location="classpath:config/db.properties"/>

    
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="${jdbcUrl}"/>
        <property name="driverClass" value="${driverClass}"/>
        <property name="user" value="${dbuser}"/>
        <property name="password" value="${password}"/>
        <property name="initialPoolSize" value="${initialPoolSize}"/>
        <property name="minPoolSize" value="${minPoolSize}"/>
        <property name="maxPoolSize" value="${maxPoolSize}"/>
        <property name="acquireIncrement" value="${acquireIncrement}"/>
        <property name="maxStatements" value="${maxStatements}"/>
        <property name="maxStatementsPerConnection" value="${maxStatementsPerConnection}"/>
        <property name="maxIdleTime" value="${maxIdleTime}"/>
    bean>

    
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource">
        property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialectprop>
                <prop key="hibernate.show_sql">trueprop>
                <prop key="hibernate.format_sql">trueprop>
                <prop key="hibernate.hbm2ddl.auto">updateprop>
            props>
        property>
        <property name="mappingLocations" value="classpath:estate/entity/database/*.hbm.xml"/>
    bean>

    
    <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    bean>

    
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="get*" read-only="true"/>
            <tx:method name="save*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="add" propagation="REQUIRED"/>
        tx:attributes>
    tx:advice>

    
    <aop:config>
        <aop:pointcut id="txPoint" expression="execution(* estate.service.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
    aop:config>
beans>

spring-servlet.xml

 
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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
        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">

    <context:annotation-config/>

    
    <context:component-scan base-package="estate">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        <context:exclude-filter type="regex" expression=".*ServiceImpl"/>
    context:component-scan>

    <mvc:annotation-driven/>
    <mvc:resources mapping="/view/**" location="/view/"/>
    <mvc:resources mapping="/file/**" location="/file/"/>

    
    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="order" value="1"/>
        <property name="mediaTypes">
            <map>
                <entry key="json" value="application/json"/>
                <entry key="xml" value="application/xml"/>
                <entry key="html" value="text/html"/>
            map>
        property>
        <property name="defaultViews">
            <list>
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"/>
            list>
        property>
    bean>

    
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    bean>

    
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="10485760"/>
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="resolveLazily" value="true"/>
    bean>

beans>

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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0modelVersion>

    <groupId>groupIdgroupId>
    <artifactId>estateOAartifactId>
    <version>1.0-SNAPSHOTversion>


    <dependencies>
        <dependency>
            <groupId>org.hibernategroupId>
            <artifactId>hibernate-coreartifactId>
            <version>4.3.11.Finalversion>
        dependency>
        <dependency>
            <groupId>org.hibernategroupId>
            <artifactId>hibernate-validatorartifactId>
            <version>5.1.3.Finalversion>
        dependency>
        <dependency>
            <groupId>javax.validationgroupId>
            <artifactId>validation-apiartifactId>
            <version>1.1.0.Finalversion>
        dependency>
        <dependency>
            <groupId>com.google.code.gsongroupId>
            <artifactId>gsonartifactId>
            <version>2.3.1version>
        dependency>
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>5.1.34version>
        dependency>


        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-contextartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-coreartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-txartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-ormartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-expressionartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aopartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aspectsartifactId>
            <version>4.1.7.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.aspectjgroupId>
            <artifactId>aspectjweaverartifactId>
            <version>1.7.4version>
        dependency>
        <dependency>
            <groupId>cglibgroupId>
            <artifactId>cglibartifactId>
            <version>2.2version>
        dependency>

        <dependency>
            <groupId>org.apache.logging.log4jgroupId>
            <artifactId>log4j-apiartifactId>
            <version>2.3version>
        dependency>
        <dependency>
            <groupId>org.apache.logging.log4jgroupId>
            <artifactId>log4j-coreartifactId>
            <version>2.3version>
        dependency>
        <dependency>
            <groupId>org.apache.tomcatgroupId>
            <artifactId>tomcat-catalinaartifactId>
            <version>8.0.22version>
        dependency>
        <dependency>
            <groupId>commons-codecgroupId>
            <artifactId>commons-codecartifactId>
            <version>1.6version>
        dependency>
        <dependency>
            <groupId>commons-logginggroupId>
            <artifactId>commons-loggingartifactId>
            <version>1.1.1version>
        dependency>
        <dependency>
            <groupId>commons-httpclientgroupId>
            <artifactId>commons-httpclientartifactId>
            <version>3.0.1version>
        dependency>
        <dependency>
            <groupId>dom4jgroupId>
            <artifactId>dom4jartifactId>
            <version>1.6.1version>
        dependency>
        <dependency>
            <groupId>jaxengroupId>
            <artifactId>jaxenartifactId>
            <version>1.1.1version>
        dependency>

        <dependency>
            <groupId>c3p0groupId>
            <artifactId>c3p0artifactId>
            <version>0.9.1.2version>
        dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.coregroupId>
            <artifactId>jackson-databindartifactId>
            <version>2.5.4version>
        dependency>
        <dependency>
            <groupId>commons-fileuploadgroupId>
            <artifactId>commons-fileuploadartifactId>
            <version>1.3.1version>
        dependency>


    dependencies>

    <build>
        <finalName>testfinalName>
        <resources>
            <resource>
                <directory>src/main/resourcesdirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                    <include>**/*.tldinclude>
                includes>
                <filtering>falsefiltering>
            resource>
            <resource>
                <directory>src/main/javadirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                    <include>**/*.tldinclude>
                includes>
                <filtering>falsefiltering>
            resource>
        resources>
    build>
project>