MoS*_*She 4 java rest jax-rs jersey jersey-2.0
我试图获取 ContainerRequestFilter 对象中的方法注释。
控制器:
@GET
@RolesAllowed("ADMIN")
public String message() {
return "Hello, rest12!";
}
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容器请求过滤器:
@Provider
public class SecurityInterceptor implements javax.ws.rs.container.ContainerRequestFilter {
@Override
public void filter(ContainerRequestContext requestContext) {
//Here I need To get the @RolesAllowed("ADMIN") annotation value
}
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应用 :
@ApplicationPath("/rest")
public class ExpertApp extends Application {
private final HashSet<Object> singletons = new LinkedHashSet<Object>();
public ExpertApp() {
singletons.add(new SecurityInterceptor());
}
@Override
public Set<Object> getSingletons() {
return singletons;
}
public Set<Class<?>> getClasses() {
return new HashSet<Class<?>>(Arrays.asList(UserControler.class, SearchController.class));
}
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}
网页.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!-- Servlet declaration can be omitted in which case it would be automatically
added by Jersey -->
<servlet>
<servlet-name>javax.ws.rs.core.Application</servlet-name>
</servlet>
<servlet-mapping>
<servlet-name>javax.ws.rs.core.Application</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
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如何获取 @RolesAllowed("ADMIN") 值,
注入到您的过滤器中@Context ResourceInfo,如此处所示,并从Method
RolesAllowed annot = resourceInfo.getResourceMethod().getAnnotation(RolesAllowed.class);
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Jersey 已经有一个RolesAllowedDynamicFeature实现注释@RolesAllowed、@PermitAll和的访问控制@DenyAll。您只需在您的应用程序中注册该功能
在ResourceConfig
public class MyApplication extends ResourceConfig {
public MyApplication() {
super(MyResource.class);
register(RolesAllowedDynamicFeature.class);
}
}
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在web.xml
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>
org.glassfish.jersey.server.filter.RolesAllowedDynamicFeature
</param-value>
</init-param>
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或者在您的Application子类中,您可以将其添加到您的getSingletons()或getClasses()集中。选哪一个并没有多大区别。不会发生注入,因此只需实例化它并将其添加到单例中是安全的。
注意:第一个选项可以在任何 JAX-RS 2.0 应用程序中完成,而第二个选项是 Jersey 特定的。
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