maven整合CXF WebService+Spring @Resource無法注入問題解決方法
阿新 • • 發佈：2019-01-06
筆者是一個出道不長的小碼農.工作中需要用的maven 結合jetty容器進行開發的前提背景下
廢話不多說直接上程式碼
更改前的web.xml
更改前的beans.xml(spring配置檔案)<?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" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name>cxf</display-name> <!-- 配置spring框架 beans.xml --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:beans.xml</param-value> </context-param> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:cxf-servlet.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置cxf框架 cxf-servlet.xml --> <servlet> <servlet-name>cxf</servlet-name> <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class> <init-param> <param-name>config-location</param-name> <param-value>classpath:cxf-servlet.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>cxf</servlet-name> <url-pattern>/cxf/*</url-pattern> </servlet-mapping> </web-app>
更改前的 cxf-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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:task="http://www.springframework.org/schema/task" 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-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"> <context:annotation-config/> <context:component-scan base-package="com"/> </beans>
<?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:jaxws="http://cxf.apache.org/jaxws" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd"> <import resource="classpath:META-INF/cxf/cxf.xml"/> <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/> <!-- 載入提供的服務 --> <jaxws:endpoint id="helloService" address="/hi" implementor="cn.HelloService"> <!-- 配置攔截器 --> <jaxws:inInterceptors> <bean class="org.apache.cxf.interceptor.LoggingInInterceptor"/> </jaxws:inInterceptors> <jaxws:outInterceptors> <bean class="org.apache.cxf.interceptor.LoggingOutInterceptor"/> </jaxws:outInterceptors> </jaxws:endpoint> </beans>
相信很多剛接觸webService cxf框架的小夥伴都是這麼配置的.在頁面訪問也是成功的.小白我也是這樣.單純的以為能出頁面就是大功告成了.
整合到專案中發現 @Resource 無法依賴注入.很是費解.因為已經 啟用spring註解<context:annotation-config/>和掃描包<context:component-scan base-package="com"/>但是依舊是 null；
撈乾的直接上改後代碼+分析
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" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>cxf</display-name>
<!-- 配置spring框架 beans.xml -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:beans.xml</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:cxf-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置cxf框架 cxf-servlet.xml -->
<servlet>
<servlet-name>cxf</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
<init-param>
<param-name>config-location</param-name>
<param-value>classpath:beans.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>cxf</servlet-name>
<url-pattern>/cxf/*</url-pattern>
</servlet-mapping>
</web-app>
<?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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
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/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<context:annotation-config/>
<context:component-scan base-package="com"/>
<import resource="cxf-servlet.xml" />
</beans><?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:jaxws="http://cxf.apache.org/jaxws"
xsi:schemaLocation=" http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">
<import resource="classpath:META-INF/cxf/cxf.xml"/>
<import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>
<!-- 載入提供的服務 -->
<jaxws:endpoint id="helloService" address="/hi" implementor="cn.HelloService">
<!-- 配置攔截器 -->
<jaxws:inInterceptors>
<bean class="org.apache.cxf.interceptor.LoggingInInterceptor"/>
</jaxws:inInterceptors>
<jaxws:outInterceptors>
<bean class="org.apache.cxf.interceptor.LoggingOutInterceptor"/>
</jaxws:outInterceptors>
</jaxws:endpoint>
</beans>更改內容分別在web.xml與beans.xml，未進行更改cxf-servlet.xml
更改之前是web.xml-->beans.xml
web.xml-->cxf-servlet.xml
更改之後是web.xml-->beans.xml-->cxf-servlet.xml
更改之前兩個配置檔案相互獨立.啟動時載入beans.xml訪問加在cxf-servlet.xml.這個時候Spring的依賴注入並沒有啟動完全.且並沒有報錯.所以錯誤不是特別明顯
更改一下配置檔案的執行順序就能有效解決Spring @Resource註解無法注入的問題了