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"; } }