详解 Spring注解的（List&Map）特殊注入功能

@Autowired
private List<DemoService> demoServices;

@Autowired
private Map<String,DemoService> demoServiceMap;

package com.secbro.learn.service;

import org.springframework.stereotype.Service;

/**
 * Created by zhuzs on 2017/5/8.
 */
@Service
public class DemoService {

  public void test(){
    System.out.println("我被调用了");
  }

}

package com.secbro.learn.controller;

import com.secbro.learn.service.DemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;
import java.util.Map;

/**
 * Created by zhuzs on 2017/5/8.
 */
@Controller
@RequestMapping(value = "/demo")
public class DemoController {

  @Autowired
  private List<DemoService> demoServices;

  @Autowired
  private Map<String,DemoService> demoServiceMap;

  @ResponseBody
  @RequestMapping(value = "/test")
  public String test(){
    for(Map.Entry<String,DemoService> entry : demoServiceMap.entrySet()){
      entry.getValue().test();
    }
    System.out.println("===============分割线=============");
    for(DemoService demoService : demoServices){
      demoService.test();
    }

    return "success";
  }
}

我被调用了
===============分割线=============
我被调用了