Spring Mvc 一个接口多个继承; (八)

在 spring 注解实现里，一个接口一般是不能多继承的!

除非在 bean 配置文件里有 针对这个 实现类的配置:

<beans:bean id="icService" class="multimpl.serviceImpl.AICserviceImpl"></beans:bean>

接口与服务实现类 目录结构:

serviceImpl 下两个  实现类 都继承 自 service 下的 ICServic.java 接口;

如果没有做上面的配置，会提示 No unique bean of type [multiimpl.service.ICService] is defined: expected single match bean but found 2;

xxxController.java 文件内，Autowired 的使用:

package com.study.interceptor.controller;

import multimpl.service.ICService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class WelcomeController {
    
    @Autowired
    private ICService icService;

    @RequestMapping(value = "welcome")
    public String welcome(Model model) {
        model.addAttribute("Welcome", "Welcome To Custom Interceptor!");
        
        String str = "Go Where!";
        String result = icService.commonService(str);
        model.addAttribute("mutlservice", result);
        
        return "welcome"; 
    }
}