作者:袁韦伦世彦琬育 | 来源:互联网 | 2023-05-29 13:38
1> Paul Samsoth..:
你可以使用ContainterRequestContext.setProperty(String, Object)
.然后注入ContainerRequestContext
@Override
public void filter(ContainerRequestContext crc) throws IOException {
MyObject obj = new MyObject();
crc.setProperty("myObject", myObject);
}
@POST
public Response getResponse(@Context ContainerRequestContext crc) {
return Response.ok(crc.getProperty("myObject")).build();
}
MyObject
直接注入的另一个选择是使用Jersey 2提供的HK2功能.
创建工厂注入ContainerRequestContext
并返回MyObject
.例如
import javax.inject.Inject;
import javax.ws.rs.container.ContainerRequestContext;
import jetty.plugin.test.domain.MyObject;
import org.glassfish.hk2.api.Factory;
public class MyObjectFactory implements Factory {
private final ContainerRequestContext context;
@Inject
public MyObjectFactory(ContainerRequestContext context) {
this.cOntext= context;
}
@Override
public MyObject provide() {
return (MyObject)context.getProperty("myObject");
}
@Override
public void dispose(MyObject t) {}
}
然后你需要绑定工厂:
public class InjectApplication extends ResourceConfig {
public InjectApplication() {
...
register(new AbstractBinder(){
@Override
protected void configure() {
bindFactory(MyObjectFactory.class)
.to(MyObject.class)
.in(RequestScoped.class);
}
});
}
}
随着财产如上面的例子过滤器相同的设置,则可以只注射MyObject
用@Context
@GET
public Response getTest(@Context MyObject myObject) {
return Response.ok(myObject.getMessage()).build();
}
更多信息请访问 Custom Injection
UPDATE
有关此实现的问题,请参阅此问题.
也可以看看:
如果您使用的是web.xml而不是ResourceConfig