我有一个自定义的EndpointInterceptor
实现;
@Component
public class MyEndpointInterceptor implements EndpointInterceptor {
@Autowired
private Jaxb2Marshaller marshaller;
@Override
public boolean handleRequest(MessageContext messageContext, Object o) throws Exception {
return true;
}
@Override
public boolean handleResponse(MessageContext messageContext, Object o) throws Exception {
return true;
}
@Override
public boolean handleFault(MessageContext messageContext, Object o) throws Exception {
return true;
}
@Override
public void afterCompletion(MessageContext messageContext, Object o, Exception e) throws Exception {
// ... do stuff with marshaller
}
}
拦截器被添加到扩展WsConfigurerAdapter
;的config类中。
@Configuration
@EnableWs
public class MyWebServiceConfiguration extends WsConfigurerAdapter {
@Bean(name = "marshaller")
public Jaxb2Marshaller createJaxb2Marshaller() {
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
return marshaller;
}
@Override
public void addInterceptors(List<EndpointInterceptor> interceptors)
{
// Register interceptor
interceptors.add(new MyEndpointInterceptor());
}
}
,但是marshaller
对象是null
。
这时我还有什么想念的吗?
答案 0 :(得分:2)
您的问题是您不让Spring管理MyEndpointInterceptor。使用Spring时,不应直接使用构造函数。但是让Spring为您构建bean。
您的配置应如下所示:
@Configuration
@EnableWs
public class MyWebServiceConfiguration extends WsConfigurerAdapter {
@Bean(name = "marshaller")
public Jaxb2Marshaller createJaxb2Marshaller() {
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
return marshaller;
}
@Autowired
private MyEndpointInterceptor myEndpointInterceptor;
@Override
public void addInterceptors(List<EndpointInterceptor> interceptors)
{
// Register interceptor
interceptors.add(myEndpointInterceptor);
}
}
答案 1 :(得分:0)
如果使用构造方法注入而不是字段注入,您可能会得到一个非常有用的异常,我只能猜测,但是似乎Spring在Spring Context中没有Marshaller,因此您需要在某个地方提供@Bean方法,例如
@Bean
public Jaxb2Marshaller jaxb2Marshaller () {
return new Jaxb2Marshaller(foo, bar, ..);
}
您可以在此处阅读为什么要避免使用场注入的原因: https://www.vojtechruzicka.com/field-dependency-injection-considered-harmful/