修改struts2 2.3.32版本后，导致依赖注入的对象为null

Question

添加的：struts2-core-2.3.32.jar，struts2-json-plugin-2.3.32.jar，xwork-core-2.3.32.jar，struts2-spring-plugin-2.3.32.jar
添加commons-lang3-3.2.jar，commons-lang-2.4.jar，添加javassist-3.11.0.GA.jar，commons-fileupload-1.3.2.jar，commons-io-2.2.jar，ognl-3.0.19.jar
，freemarker-2.3.22.jar，asm-3.3.1.jar,asm-common-3.3.jar,asm-tree-3.3.jar

Answer 1

@Autowired
private UserService userService;

<bean id="userService" class="com.bg.security.service.impl.UserServiceImpl" />