[英]Spring ApplicationContext with multiple XML Files from Jar
[英]Spring ApplicationContext with multiple context xml files from different projects in an application
我的應用程序中有兩個不同的項目:數據,Web
我想自動連接Web應用程序層中我的數據中定義的dao。
所以我在web中創建了一個主applicationContext.xml文件,並導入了如下所示的整個Spring bean文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<import resource="data/src/main/resources/spring/applicationContext-data.xml"/>
<import resource="applicationContext.xml"/>
</beans>
@Configuration("file:**/Master-Module.xml")
public class MyService{
@Autowired
public IMyDAO myDao;
Practice practice1 = myDao.findById("3900");
接口IMyDAO在applicationContext-data.xml中定義
當我將應用程序部署到Websphere並運行它時,我得到一個NULL指針異常。
Id存在於數據庫中。
它作為獨立項目運行時在Maven中成功構建。
以下是我得到的錯誤:
2/28/15 12:45:13:902 EST] 0000009d ServletWrappe I com.ibm.ws.webcontainer.servlet.ServletWrapper init SRVE0242I: [webapp-7_0-SNAPSHOT_war] [/web] [/WEB-INF/views/common/footer.jsp]: Initialization successful.
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R java.lang.NullPointerException
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R at cic.web.service.MyPracticeService.retrievPracticeDetails(MyPracticeService.java:51)
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R at cic.web.controllers.MyPracticeController.practicesList(MyPracticeController.java:42)
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
[2/28/15 12:45:13:762 EST] 0000009d SystemErr R at java.lang.reflect.Method.invoke(Method.java:611)
您可以在web.xml
加載聲明的多個spring上下文
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
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