Jersey 2.x 自定义注入注解 NULL [英] Jersey 2.x Custom Injection annotation NULL

问题描述

我正在关注 22.1.实现自定义注入提供程序段落

I'm following the 22.1. Implementing Custom Injection Provider paragraph

https://jersey.java.net/documentation/latest/user-guide.html#deployment

我定义了我的类如下:

public class PrincipalConfig extends ResourceConfig {   

  public PrincipalConfig() {    
    packages("com.vex.klopotest.secured,com.klopotek.klas.auth.injection");         
        register(new MyBinder());
    }
}

MyBinder 在哪里:

Where MyBinder is :

Public class MyBinder extends AbstractBinder implements Factory<KasPrincipal> {


@Override
protected void configure() {

    bindFactory(this).to(MyInjectable.class).in(RequestScoped.class);                
    bind(KasPersistenceDaoInjectionResolver.class)
         .to(new TypeLiteral<InjectionResolver<KasPersistenceDaoAnnot>>(){})
         .in(Singleton.class);

    }

    @Override
    public MyInjectable provide() {
    // TODO Auto-generated method stub
        return new MyInjectable();
    }

    @Override
    public void dispose(MyInjectable instance) {
        // TODO Auto-generated method stub

    }
}

这是我的简单注释:

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface MyAnnot {

}

我想在我的资源服务中使用注释:

i wanto to use the annotation in my res service:

@Path("modelORA")
public class ModelRetrieverORA {

   @Context
   SecurityContext securityContext;

    @Context
    private UriInfo uriInfo;

    @MyAnnot    
    private Myinjectable Principal;

在我的 web.xml 中，我通过以下配置代码部署了 Jersey servlet 容器(我错了)和 javax.ws.rs.Application:

in my web.xml i deployed Jersey servlet container (am i wrong) and javax.ws.rs.Application by this configuration code:

<servlet>
    <servlet-name>com.my.package.injection.PrincipalConfig</servlet-name>
</servlet>

<servlet-mapping>
    <servlet-name>com.my.package.injection.PrincipalConfig</servlet-name>
    <url-pattern>/rest</url-pattern>
</servlet-mapping>

进入调试模式时，我看到在调用我的休息服务时，provide 方法从未被调用......确实始终为空.

Going into debug mode i see that when invoking my rest service the provide method is never called... indeed is always null.

我错在哪里?我正在开发 jboss Wildfly 9.0 并使用 Jersey 2.21 库

Where am i wrong? I m working on a jboss Wildfly 9.0 and using Jersey 2.21 library

推荐答案

我找到了解决方案:

1) 在 web.xml 添加:

1) In web.xml add:

<context-param>
    <param-name>resteasy.scan</param-name>
    <param-value>false</param-value>
</context-param>
<context-param>
    <param-name>resteasy.scan.providers</param-name>
    <param-value>false</param-value>
</context-param>
<context-param>
    <param-name>resteasy.scan.resources</param-name>
    <param-value>false</param-value>
</context-param>

这样我就可以排除resteasy扫描我的战争.

this way i can exclude resteasy from scanning my war.

然后使用这些部署说明:

Then use these deployment instructions:

<servlet>
    <servlet-name>Jersey REST Service</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param> 
        <param-name>javax.ws.rs.Application</param-name>
        <param-value>com.klopotek.klas.auth.injection.PrincipalConfig</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Jersey REST Service</servlet-name>
    <url-pattern>/rest/*</url-pattern>
</servlet-mapping>

这是因为之前的部署方法是针对 Servlet 规范 3.0.

This is because the previous deployment method was for Servlet specs 3.0.

注射现在起作用了.

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