一个Spring应用程序中具有不同上下文的多个servlet

时间：2016-01-27 09:20:14

标签： java spring hibernate spring-mvc servlets

我有一个Spring应用程序，它必须有两个servlet（dispatcherMain和dispatcherCatalog）通过Hibernate（finance和finances_global）处理不同的数据库。

首先，在web.xml我定义：

  1. 父上下文配置位置（application-config.xml）
  2. servlets和他们自己的：
    • 上下文配置位置（dispatcherMain-servlet.xml，dispatcherCatalog-servlet.xml）
    • Hibernate数据源配置文件（databaseConfigMain.xml，databaseConfigCatalog.xml）。

    3. 第二次，在每个servlet的配置文件中，我创建了一个bean MainConfig，它读取资源包 - 为每个servlet（mainServlet.properties和{{1}分开}）。

    但事实证明，配置文件永远不会被读取，因此部署失败。在日志文件中，我有很多catalogServlet.properties和java.lang.RuntimeException: Can't read property "server.redis"。

    我做错了什么？

    这是我的配置。

    Caused by: java.lang.NullPointerException at klab.backend.utils.MainConfig.get(MainConfig.java:351)：

    web.xml

    <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> ... <!-- Configurations for the root application context (parent context) --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/application-config.xml </param-value> </context-param> <!-- Configurations for the DispatcherServlet application contexts (child contexts) --> <!-- Configurations for servlet "dispatcherMain" --> <servlet> <servlet-name>dispatcherMain</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/dispatcherMain-servlet.xml /WEB-INF/databaseConfigMain.xml </param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherMain</servlet-name> <url-pattern>/rest/api/finance/*</url-pattern> </servlet-mapping> <filter> <filter-name>hibernateFilterForFinanceMain</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> <init-param> <param-name>sessionFactoryBeanName</param-name> <param-value>sessionFactory1</param-value> </init-param> </filter> <filter-mapping> <filter-name>hibernateFilterForFinanceMain</filter-name> <url-pattern>/rest/api/finance/*</url-pattern> </filter-mapping> <!-- Configurations for servlet "dispatcherCatalog" --> <servlet> <servlet-name>dispatcherCatalog</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/dispatcherCatalog-servlet.xml /WEB-INF/databaseConfigCatalog.xml </param-value> </init-param> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherCatalog</servlet-name> <url-pattern>/rest/api/finance-global/*</url-pattern> </servlet-mapping> <filter> <filter-name>hibernateFilterForFinanceCatalog</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> <init-param> <param-name>sessionFactoryBeanName</param-name> <param-value>sessionFactory</param-value> </init-param> </filter> <filter-mapping> <filter-name>hibernateFilterForFinanceCatalog</filter-name> <url-pattern>/rest/api/finance-global/*</url-pattern> </filter-mapping> </web-app> ：

    application-config.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:mvc="http://www.springframework.org/schema/mvc" 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"> <mvc:annotation-driven /> <context:component-scan base-package="klab.finance.system"/> <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"/> <bean class="org.springframework.validation.beanvalidation.MethodValidationPostProcessor"> <property name="validator" ref="validator"/> </bean> <bean name="CorsFilter" class="klab.backend.filter.CorsFilter" /> <bean id="swagger2Config" class="klab.finance.config.SwaggerConfig"/> </beans> ：

    dispatcherMain-servlet.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:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation= "http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd 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"> <bean class="klab.backend.utils.MainConfig" id="mainConfigMain"> <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/> <property name="locations"> <list> <value>/WEB-INF/mainServlet.properties</value> <value>/WEB-INF/build.properties</value> </list> </property> </bean> <bean class="klab.backend.controller.base.DefaultController" /> <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="writeAcceptCharset" value="true"/> </bean> <bean class="klab.backend.utils.json.JacksonView2HttpMessageConverter"> <property name="objectMapper"> <bean class="klab.backend.utils.json.KJsonMapper"> </bean> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="writeAcceptCharset" value="true"/> </bean> <bean class="klab.backend.utils.json.JacksonView2HttpMessageConverter"> <property name="objectMapper"> <bean class="klab.backend.utils.json.KJsonMapper"> </bean> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> <context:component-scan base-package="klab.finance.main"/> </beans> ：

    dispatcherCatalog-servlet.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:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation= "http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd 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"> <bean class="klab.backend.utils.MainConfig" id="mainConfig"> <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/> <property name="locations"> <list> <value>/WEB-INF/catalogServlet.properties</value> <value>/WEB-INF/build.properties</value> </list> </property> </bean> <bean class="klab.backend.controller.base.DefaultController" /> <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="writeAcceptCharset" value="true"/> </bean> <bean class="klab.backend.utils.json.JacksonView2HttpMessageConverter"> <property name="objectMapper"> <bean class="klab.backend.utils.json.KJsonMapper"> </bean> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> <context:component-scan base-package="klab.finance.catalog"/> </beans> ：

    databaseConfigMain.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: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/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <bean id="sessionFactory1" name="sessionFactory1" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="packagesToScan"> <list> <value>klab.finance.main.entity</value> <value>klab.backend.entity.finance.main</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQL81Dialect</prop> <prop key="hibernate.show_sql" >${jdbc.debug}</prop> <prop key="hibernate.use_sql_comments">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="jdbc.batch_size">20</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> </props> </property> </bean> <bean id="dataSource" class="klab.backend.utils.hibernate.RoutingDataSource"> <property name="poolProperties"> <props> <prop key="max_size">3</prop> <prop key="min_size">1</prop> </props> </property> </bean> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory1"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> </beans> ：

    databaseConfigCatalog.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: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/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <bean id="sessionFactory" name="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="packagesToScan"> <list> <value>klab.backend.entity.finance.catalog</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQL81Dialect</prop> <prop key="hibernate.show_sql" >${jdbc.debug}</prop> <prop key="hibernate.use_sql_comments">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="jdbc.batch_size">20</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> </props> </property> </bean> <bean id="dataSource" class="klab.backend.utils.hibernate.RoutingDataSource"> <property name="poolProperties"> <props> <prop key="max_size">3</prop> <prop key="min_size">1</prop> </props> </property> </bean> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> </beans> ：

    mainServlet.properties

    sql.settings.limit = 1000 jdbc.debug = true server.redis = 192.168.1.56 db.default = jdbc:postgresql://192.168.1.56/finances?user=admin&password=aFdD4aEcf5j7Cia; callback.default = http://192.168.1.57/rest/api auto.restart=1 context.count=3 rabbit.host = 192.168.1.56 rabbit.port = 5672 rabbit.user = guest rabbit.password = guest monitoring.query.size = 10 monitoring.enabled = 1 application.version = ${build.number} ：

    catalogServlet.properties

0 个答案:

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