HTTP Status 500 - No bean named

HTTP Status 500 - No bean named 'controller' is defined

type Exception report

message No bean named 'controller' is defined

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'controller' is defined
org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:660)
org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1157)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:280)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)
com.imooc.smm.global.DispatcherServlet.service(DispatcherServlet.java:44)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.imooc.smm.global.encodingFilter.doFilter(encodingFilter.java:19)

月鑫 2019-03-06

源自：项目：人员管理系统开发 4-3 部门管理实现-界面

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1回答

chrismorgen 2019-03-06 19:00:07

你好同学，如下报错提示是在spring容器中找不到名为contrller这个bean对象，建议你在当前项目中有没有名为controller这个bean呢？主要检查代码中的controller是否有@Controller("controller")这个注解呢，祝学习愉快~

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提问者月鑫 #1

我有啊 package com.imooc.smm.controller; import com.imooc.smm.entity.Department; import com.imooc.smm.service.DepartmentService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.List; @Controller("departmentController") public class DepartmentController { @Autowired private DepartmentService departmentService; public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { List<Department> list = departmentService.selectall(); request.setAttribute("LIST",list); request.getRequestDispatcher("../Department_list.jsp").forward(request,response); } }

2019-03-08 09:41:14
chrismorgen 回复提问者月鑫 #2

你好同学，建议你粘贴一下pom文件中的代码，我需要先核对一下你pom文件中是否缺少相应的springjar包，另外建议同学不要将代码粘贴到回复中，否则会失去代码格式，而要粘贴到回答中，祝学习愉快~

2019-03-08 14:47:21