can't inject(?) spring @Service bean into jsf @Named managed bean via SpringBeanAutowiringSupport and @Autowired - Stack

admin管理员组

文章数量:1024945

spring and jsf both work on their own without any issues so I'm only including code which is relevant for the spring-jsf connection.

managed bean:

import jakarta.annotation.PostConstruct;
import jakarta.faces.view.ViewScoped;
import jakarta.inject.Named;
import .springframework.beans.factory.annotation.Autowired;
import .springframework.web.context.support.SpringBeanAutowiringSupport;

import java.io.Serializable;

@Named
@ViewScoped
public class ZManagedBean extends SpringBeanAutowiringSupport implements Serializable{
    private static final long serialVersionUID = 1L;

    @PostConstruct
    public void init() {
        System.out.println(getzService());
    }

    @Autowired
    ZService zService;

    public ZService getzService() {return zService;}
    public void setzService(ZService zService) {this.zService = zService;}


    public void register() {
        System.out.println("jsf alone works");
        zService.checkInjection();
    }

} 

its deploying successfully but gives an error when calling register().

important logs:

[INFO] [] [jakarta.enterprise.logging.stdout] [tid: _ThreadID=73 _ThreadName=admin-listener(3)] [levelValue: 800] [[
  .demoNoBoot2.zdemo.ZService@2816d266]]

first time initializing the managed bean, the service is injected successfully within the PostConstruct, but calling register() gives nullptrexc

[FATAL] [faces.context.exception.handler.log] [jakarta.enterprise.resource.webcontainer.faces.context] [tid: _ThreadID=59 _ThreadName=http-listener-1(3)] [levelValue: 1100] [[
  Cannot invoke ".demoNoBoot2.zdemo.ZService.checkInjection()" because "this.zService" is null]]

as the managed bean gets instantiated again (ViewScoped), injection fails (also in PostConstruct).

Making the managed bean @ApplicationScoped doesn't fix the problem (it still prints the zService address in the logs and also prints it again later (I think when I first call the page) but this time with zService address null)

spring and jsf both work on their own without any issues so I'm only including code which is relevant for the spring-jsf connection.

managed bean:

import jakarta.annotation.PostConstruct;
import jakarta.faces.view.ViewScoped;
import jakarta.inject.Named;
import .springframework.beans.factory.annotation.Autowired;
import .springframework.web.context.support.SpringBeanAutowiringSupport;

import java.io.Serializable;

@Named
@ViewScoped
public class ZManagedBean extends SpringBeanAutowiringSupport implements Serializable{
    private static final long serialVersionUID = 1L;

    @PostConstruct
    public void init() {
        System.out.println(getzService());
    }

    @Autowired
    ZService zService;

    public ZService getzService() {return zService;}
    public void setzService(ZService zService) {this.zService = zService;}


    public void register() {
        System.out.println("jsf alone works");
        zService.checkInjection();
    }

} 

its deploying successfully but gives an error when calling register().

important logs:

[INFO] [] [jakarta.enterprise.logging.stdout] [tid: _ThreadID=73 _ThreadName=admin-listener(3)] [levelValue: 800] [[
  .demoNoBoot2.zdemo.ZService@2816d266]]

first time initializing the managed bean, the service is injected successfully within the PostConstruct, but calling register() gives nullptrexc

[FATAL] [faces.context.exception.handler.log] [jakarta.enterprise.resource.webcontainer.faces.context] [tid: _ThreadID=59 _ThreadName=http-listener-1(3)] [levelValue: 1100] [[
  Cannot invoke ".demoNoBoot2.zdemo.ZService.checkInjection()" because "this.zService" is null]]

as the managed bean gets instantiated again (ViewScoped), injection fails (also in PostConstruct).

Making the managed bean @ApplicationScoped doesn't fix the problem (it still prints the zService address in the logs and also prints it again later (I think when I first call the page) but this time with zService address null)

本文标签：