Java SpringMVC控制器bean配置

我正在使用SpringMVC进行一个项目，我解决了一个问题，即启动服务器时自动生成处理程序

代码如下：

控制器

@Controller
@RequestMapping(value="userstory/{projectid}/{sprintid}/")
@SessionAttributes(value = "user")
public class UserstoryController {
    private ISprintService sprintService;
    private IUserStoryService userStoryService;
    private IProjectService projectService;
    private IBurnDownChartService burnDownChartService;
    private ITaskService taskService;

    public void setSprintService(ISprintService sprintService) {
        this.sprintService = sprintService;
    }

    public void setUserStoryService(IUserStoryService userStoryService) {
        this.userStoryService = userStoryService;
    }

    public void setProjectService(IProjectService projectService) {
        this.projectService = projectService;
    }

    public void setBurnDownChartService(IBurnDownChartService burnDownChartService) {
        this.burnDownChartService = burnDownChartService;
    }

    public void setTaskService(ITaskService taskService) {
        this.taskService = taskService;
    }

    @RequestMapping(method=RequestMethod.GET)
    public String getUserstoryPage(@PathVariable("projectid") int pid, @PathVariable("sprintid") int sid,  @ModelAttribute("user") SerializablePerson user) {
        if (user.getId() != 0) {
            Project p = this.projectService.findProjectById(pid);
            if (p == null) {
                throw new ResourceNotFoundException(pid);
            }
            if (user.getRole().equals("User")) {
                return "userstory/user_userstory";
            }
            else {
                return "userstory/admin_userstory";
            }
        }
        return "redirect:../../../login";
    }

}

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
    <bean id="personServiceImpl" class="ch.bsgroup.scrumit.service.impl.PersonServiceImpl" />
    <bean id="projectServiceImpl" class="ch.bsgroup.scrumit.service.impl.ProjectServiceImpl" />
    <bean id="sprintServiceImpl" class="ch.bsgroup.scrumit.service.impl.SprintServiceImpl" />
    <bean id="userStoryServiceImpl" class="ch.bsgroup.scrumit.service.impl.UserStoryServiceImpl" />
    <bean id="taskServiceImpl" class="ch.bsgroup.scrumit.service.impl.TaskServiceImpl" />

    <bean id="projectService" class="ch.bsgroup.scrumit.service.impl.ProjectServiceImpl" />
    <bean id="personService" class="ch.bsgroup.scrumit.service.impl.PersonServiceImpl" />

    <bean id="sprintService" class="ch.bsgroup.scrumit.service.impl.SprintServiceImpl" />
    <bean id="userStoryService" class="ch.bsgroup.scrumit.service.impl.UserStoryServiceImpl" />
    <bean id="burnDownChartService" class="ch.bsgroup.scrumit.service.impl.BurnDownChartServiceImpl" />
    <bean id="taskService" class="ch.bsgroup.scrumit.service.impl.TaskServiceImpl" />

    <bean id="sprintUserstoryController" class="ch.bsgroup.scrumit.controller.SprintUserstoryController">
        <property name="sprintService">
            <ref local="sprintService"/>
        </property>
        <property name="userStoryService">
            <ref local="userStoryService"/>
        </property>
        <property name="projectService">
            <ref local="projectService"/>
        </property>
        <property name="burnDownChartService">
            <ref local="burnDownChartService"/>
        </property>
        <property name="taskService">
            <ref local="taskService"/>
        </property>
    </bean>

    <bean id="boardController" class="ch.bsgroup.scrumit.controller.BoardController">
        <property name="sprintService">
            <ref local="sprintService"/>
        </property>
        <property name="projectService">
            <ref local="projectService"/>
        </property>
        <property name="userStoryService">
            <ref local="userStoryService"/>
        </property>
        <property name="taskService">
            <ref local="taskService"/>
        </property>
        <property name="burnDownChartService">
            <ref local="burnDownChartService"/>
        </property>
    </bean>

    <bean name="register.jsp" id="registerController" class="ch.bsgroup.scrumit.controller.RegisterController">
        <property name="personService">
            <ref local="personService"/>
        </property>
    </bean>

    <bean id="loginController" class="ch.bsgroup.scrumit.controller.LoginController" >
        <property name="personService">
            <ref local="personService"/>
        </property>
    </bean>

    <bean id="adminProjectController" class="ch.bsgroup.scrumit.controller.AdminProjectController">
        <property name="projectService">
            <ref local="projectService"/>
        </property>
        <property name="personService">
            <ref local="personService"/>
        </property>
    </bean>

    <bean id="userProjectController" class="ch.bsgroup.scrumit.controller.UserProjectController">
        <property name="projectService">
            <ref local="projectService"/>
        </property>
    </bean>

    <bean id="adminPersonController" class="ch.bsgroup.scrumit.controller.AdminPersonController">
        <property name="projectService">
            <ref local="projectService"/>
        </property>
        <property name="personService">
            <ref local="personService"/>
        </property>
    </bean>

    <bean id="manageProjectMemberController" class="ch.bsgroup.scrumit.controller.ManageProjectMemberController">
        <property name="projectService">
            <ref local="projectService"/>
        </property>
        <property name="personService">
            <ref local="personService"/>
        </property>
    </bean>

    <bean id="manageUserstoryController" class="ch.bsgroup.scrumit.controller.UserstoryController">
        <property name="sprintService">
            <ref local="sprintService"/>
        </property>
        <property name="userStoryService">
            <ref local="userStoryService"/>
        </property>
        <property name="projectService">
            <ref local="projectService"/>
        </property>
        <property name="burnDownChartService">
            <ref local="burnDownChartService"/>
        </property>
        <property name="taskService">
            <ref local="taskService"/>
        </property>
    </bean>
</beans>

错误是：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Cannot map handler 'manageUserstoryController' to URL path [/userstory/{projectid}/{sprintid}/]: There is already handler of type [class ch.bsgroup.scrumit.controller.UserstoryController] mapped.

由于UserstoryController的存在，程序不允许我将UserstoryController映射到manageUserstoryController

有人能给我解释一下为什么会生成userstoryController，以及如何正确地映射它吗。

---

提前感谢。

问题如下。这个元素

<context:component-scan base-package="ch.bsgroup.scrumit.controller" />

可替换为字段上相应的

@Autowired

注释。你甚至不需要接球手和接球手。比如说

@Controller
@RequestMapping(value="userstory/{projectid}/{sprintid}/")
@SessionAttributes(value = "user")
public class UserstoryController {
    @Autowired
    private ISprintService sprintService;

    @Autowired
    private IUserStoryService userStoryService;

    @Autowired
    private IProjectService projectService;

    @Autowired
    private IBurnDownChartService burnDownChartService;

    @Autowired
    private ITaskService taskService;

    @RequestMapping(method=RequestMethod.GET)
    public String getUserstoryPage(@PathVariable("projectid") int pid, @PathVariable("sprintid") int sid,  @ModelAttribute("user") SerializablePerson user) {
        if (user.getId() != 0) {
            Project p = this.projectService.findProjectById(pid);
            if (p == null) {
                throw new ResourceNotFoundException(pid);
            }
            if (user.getRole().equals("User")) {
                return "userstory/user_userstory";
            }
            else {
                return "userstory/admin_userstory";
            }
        }
        return "redirect:../../../login";
    }
}

以下是一些相关文档：

---

请出示你的web.xml.hi@SotiriosDelimanolis，我已经在帖子中添加了web.xml。你的

app-config.xml

与你的

beans.xml

相同吗？嗨，app-config.xml在不同的文件中。我已经用app-config.xml内容更新了帖子。如果我能提供你所需要的所有信息那就太好了。嗨，非常感谢你的回答。我已经解决了这个问题。我只是有一个关于自动连线的小问题：如果我将自动连线添加到其他控制器，我根本不需要beans.xml，对吗？@lightbringer如果您为

服务

包添加组件扫描，并用

@service

注释所有服务类，那么，不，你不需要它。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Cannot map handler 'manageUserstoryController' to URL path [/userstory/{projectid}/{sprintid}/]: There is already handler of type [class ch.bsgroup.scrumit.controller.UserstoryController] mapped.

<context:component-scan base-package="ch.bsgroup.scrumit.controller" />

<bean id="boardController" class="ch.bsgroup.scrumit.controller.BoardController">
    <property name="sprintService">
        <ref local="sprintService"/>
    </property>
    <property name="projectService">
        <ref local="projectService"/>
    </property>
    <property name="userStoryService">
        <ref local="userStoryService"/>
    </property>
    <property name="taskService">
        <ref local="taskService"/>
    </property>
    <property name="burnDownChartService">
        <ref local="burnDownChartService"/>
    </property>
</bean>

@Controller
@RequestMapping(value="userstory/{projectid}/{sprintid}/")
@SessionAttributes(value = "user")
public class UserstoryController {
    @Autowired
    private ISprintService sprintService;

    @Autowired
    private IUserStoryService userStoryService;

    @Autowired
    private IProjectService projectService;

    @Autowired
    private IBurnDownChartService burnDownChartService;

    @Autowired
    private ITaskService taskService;

    @RequestMapping(method=RequestMethod.GET)
    public String getUserstoryPage(@PathVariable("projectid") int pid, @PathVariable("sprintid") int sid,  @ModelAttribute("user") SerializablePerson user) {
        if (user.getId() != 0) {
            Project p = this.projectService.findProjectById(pid);
            if (p == null) {
                throw new ResourceNotFoundException(pid);
            }
            if (user.getRole().equals("User")) {
                return "userstory/user_userstory";
            }
            else {
                return "userstory/admin_userstory";
            }
        }
        return "redirect:../../../login";
    }
}