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引起：java.lang.IllegalStateException：找到模糊映射。无法映射'appController'bean方法

本文介绍了引起：java.lang.IllegalStateException：找到模糊映射。无法映射'appController'bean方法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

早上好，我正在处理一个模糊映射，我无法解码...
我使用Spring mvc 4.0.6和hibernate 4.3.6
我得到这个错误

  ERROR [localhost-startStop-2]：上下文初始化失败
 org.springframework。 beans.factory.BeanCreationException：类org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfigurationrequestMappingHandlerMapping定义错误创建与名称豆：init方法的调用失败;嵌套异常是java.lang.IllegalStateException：找到模糊映射。无法映射'appController'bean方法
 public java.lang.String it.besmart.controller.AppController.newClient（org.springframework.ui.ModelMap）
 to {[// new]，methods = [ POST]，params = []，headers = []，consumes = []，生产= []，custom = []}：已经有'appController'bean方法
 public java.lang.String it.besmart .controller.AppController.saveClient（it.besmart.models.Client，org.springframework.validation.BindingResult，org.springframework.ui.ModelMap）映射。在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1553）
 
在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:539）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:475）
在org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject 
（AbstractBeanFactory.java:302 ）美元，org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:228 b $ b）
在org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:298 ）
处org.springframework.beans.factory.support.DefaultListableBeanFactory org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:193）
。 preInstantiateSingletons（DefaultListableBeanFactory.java:703）
 at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:760）
 at org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext。 Java的：482），美元，org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:403 b $ b）
在org.springframework.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:306）在org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:106）
 
在org.apache.catalina.core.StandardContext.listenerStart（StandardContext.java:4727）
在org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5167）
在org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
在org.apache .catalina.core.ContainerBase.addChi ldInternal（ContainerBase.java:725）
在org.apache.catalina.core.ContainerBase.addChild（ContainerBase.java:701）
在org.apache.catalina.core.StandardHost.addChild（StandardHost。 Java的：在org.apache.catalina.startup.HostConfig.deployWAR（HostConfig.java:945 717）
）
在org.apache.catalina.startup.HostConfig $ DeployWar.run（HostConfig.java： 1768）
在java.util.concurrent.Executors $ RunnableAdapter.call（Executors.java:511）
在java.util.concurrent.FutureTask.run（FutureTask.java:266）
在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）
在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:617）
在java.lang.Thread中.run（Thread.java:744）
引起：java.lang.IllegalStateException：找到模糊映射。无法映射'appController'bean方法
 public java.lang.String it.besmart.controller.AppController.newClient（org.springframework.ui.ModelMap）
 to {[// new]，methods = [ POST]，params = []，headers = []，consumes = []，生产= []，custom = []}：已经有'appController'bean方法
 public java.lang.String it.besmart .controller.AppController.saveClient（it.besmart.models.Client，org.springframework.validation.BindingResult，org.springframework.ui.ModelMap）映射。在org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod（AbstractHandlerMethodMapping.java:192）
 
在org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods（AbstractHandlerMethodMapping.java:164） 
 at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods（AbstractHandlerMethodMapping.java:124）
 at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet（AbstractHandlerMethodMapping.java:103） 
在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet（RequestMappingHandlerMapping.java:126）
在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory。 java：1612）
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFa ctory.java:1549）
 ... 25 more

我不明白为什么我收到这个错误。 AppController非常直观 

  package it.besmart.controller; 
导入it.besmart.models.Client; 
导入it.besmart.service.ClientService; 
 import java.util.List; 
 import java.util.Locale; 
 import javax.validation.Valid; 
 import org.springframework.beans.factory.annotation.Autowired; 
 import org.springframework.context.MessageSource; 
 import org.springframework.stereotype.Controller; 
 import org.springframework.ui.ModelMap; 
 import org.springframework.validation.BindingResult; 
 import org.springframework.validation.FieldError; 
 import org.springframework.web.bind.annotation.PathVariable; 
 import org.springframework.web.bind.annotation.RequestMapping; 
 import org.springframework.web.bind.annotation.RequestMethod; 
 
 @Controller 
 @RequestMapping（/）
公共类AppController {
 $ b $ @Autowired 
 ClientService clientService; 
 
 @Autowired 
 MessageSource messageSource; 
 
 @RequestMapping（value = {/，/ list}，method = RequestMethod.GET）
 public String listClients（ModelMap model）{
 List< Client> clients = clientService.findAllClients（）; 
 model.addAttribute（clients，clients）; 
返回allclients; 
 
 $ b @RequestMapping（value = {/ new}，method = RequestMethod.POST）
 public String newClient（ModelMap model）{
 Client client =新客户端（）; 
 model.addAttribute（client，client）; 
 model.addAttribute（edit，false）; 
返回注册; 
 
 
 $ b @RequestMapping（value = {/ new}，method = RequestMethod.POST）
 public String saveClient（@Valid客户端客户端，BindingResult结果，ModelMap模型）{
 if（result.hasErrors（））{
 returnregistration; 
} 
 
 
 clientService.saveClient（client）; 
 model.addAttribute（success，Client+ client.getNomeClient（）+registrato correttamente）; 
 
返回成功; 
 
 
 
 $ b @RequestMapping（value = {/ edit- {name} -client}，method = RequestMethod.POST）
 public字符串updateClient（@Valid客户端客户端，BindingResult结果，ModelMap模型，@PathVariable字符串名称）{
 if（result.hasErrors（））{
 returnregistration; 
 
 $ b $ if（！clientService.isClientNameUnique（client.getIdClient（），client.getNomeClient（）））{
 FieldError idErr = new FieldError（client，name ，messageSource.getMessage（non.unique.nome_client，new String [] {client.getNomeClient（）}，Locale.getDefault（）））; 
 result.addError（idErr）; 
返回注册; 
} 
 clientService.saveClient（client）; 
 model.addAttribute（success，Client+ client.getNomeClient（）+aggiornato correttamente）; 
 
返回成功; 
 
 
 $ b @RequestMapping（value = {/ delete- {id} -client}，method = RequestMethod.GET）
 public String deleteClient（@ PathVariable int id）{
 clientService.deleteClientById（id）; 
返回redirect：/ list; 
} 
 
 
}

ClientService.java 

  package it.besmart.service; 
 
导入it.besmart.models.Client; 
 
 import java.util.List; 
 
 public interface ClientService {
 
客户端findById（int id）; 
 
 void saveClient（客户端客户端）; 
 
 void updateClient（客户端客户端）; 
 
 void deleteClientById（int id）; 
 
列表< Client> findAllClients（）; 
 
客户端findClientByName（String name）; 
 
 boolean isClientNameUnique（Integer id，String name）; 
 
 
 $ / code>

它看起来对我来说很简单，我对这种应用程序很陌生。
Thanks

解决方案

这是您收到的错误消息：

它告诉你你正在映射多个方法来处理 POST 到URL / new 。如果Web浏览器向URL / new 发出 POST 请求，那么您的哪些方法应该处理它？

以下是两个违规方法： 

  @RequestMapping（value = { / new}，method = RequestMethod.POST）
 public String newClient（ModelMap model）{
 Client client = new Client（）; 
 model.addAttribute（client，client）; 
 model.addAttribute（edit，false）; 
返回注册; 
 
 
 $ b @RequestMapping（value = {/ new}，method = RequestMethod.POST）
 public String saveClient（@Valid客户端客户端，BindingResult结果，ModelMap模型）{
 if（result.hasErrors（））{
 returnregistration; 
} 
 
 
 clientService.saveClient（client）; 
 model.addAttribute（success，Client+ client.getNomeClient（）+registrato correttamente）; 
 
返回成功; 
 
}

我怀疑第一个是不正确的;您可能希望使用 RequestMethod.GET 代替 RequestMethod.POST 。


Good morning all, i'm dealing with an Ambiguous mapping i cannot decode...I'm using Spring mvc 4.0.6 and hibernate 4.3.6I'm getting this error while launching the war in tomcat:

ERROR [localhost-startStop-2]: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping found. Cannot map 'appController' bean method
public java.lang.String it.besmart.controller.AppController.newClient(org.springframework.ui.ModelMap)
to {[//new],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already 'appController' bean method
public java.lang.String it.besmart.controller.AppController.saveClient(it.besmart.models.Client,org.springframework.validation.BindingResult,org.springframework.ui.ModelMap) mapped.
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4727)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5167)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:945)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1768)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.IllegalStateException: Ambiguous mapping found. Cannot map 'appController' bean method
public java.lang.String it.besmart.controller.AppController.newClient(org.springframework.ui.ModelMap)
to {[//new],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already 'appController' bean method
public java.lang.String it.besmart.controller.AppController.saveClient(it.besmart.models.Client,org.springframework.validation.BindingResult,org.springframework.ui.ModelMap) mapped.
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod(AbstractHandlerMethodMapping.java:192)
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods(AbstractHandlerMethodMapping.java:164)
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:124)
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:103)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:126)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
    ... 25 more

I can't understand why i'm getting this error. AppController is quite straight

package it.besmart.controller;
import it.besmart.models.Client;
import it.besmart.service.ClientService;
import java.util.List;
import java.util.Locale;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
@RequestMapping("/")
public class AppController {

    @Autowired
    ClientService clientService;

    @Autowired
    MessageSource messageSource;

    @RequestMapping(value = { "/", "/list" }, method = RequestMethod.GET)
    public String listClients(ModelMap model){
        List<Client> clients = clientService.findAllClients();
        model.addAttribute("clients", clients);
        return "allclients";
    }

    @RequestMapping(value = {"/new"}, method = RequestMethod.POST)
    public String newClient(ModelMap model){
        Client client = new Client();
        model.addAttribute("client", client);
        model.addAttribute("edit", false);
        return "registration";

    }

    @RequestMapping(value = {"/new"}, method = RequestMethod.POST)
    public String saveClient(@Valid Client client, BindingResult result, ModelMap model){
        if(result.hasErrors()){
            return "registration";
        }


        clientService.saveClient(client);
        model.addAttribute("success", "Client" + client.getNomeClient() + "registrato correttamente");

        return "success";

    }


    @RequestMapping(value = { "/edit-{name}-client"}, method = RequestMethod.POST)
    public String updateClient(@Valid Client client, BindingResult result, ModelMap model, @PathVariable String name ){
        if(result.hasErrors()){
            return "registration";
        }

        if(!clientService.isClientNameUnique(client.getIdClient(), client.getNomeClient())){
            FieldError idErr = new FieldError("client", "name", messageSource.getMessage("non.unique.nome_client", new String[]{client.getNomeClient()}, Locale.getDefault()));
            result.addError(idErr);
            return "registration";
        }
        clientService.saveClient(client);
        model.addAttribute("success", "Client" + client.getNomeClient() + "aggiornato correttamente");

        return "success";

    }

    @RequestMapping(value = { "/delete-{id}-client" }, method = RequestMethod.GET)
        public String deleteClient(@PathVariable int id){
        clientService.deleteClientById(id);
        return "redirect:/list";
    }


    }

ClientService.java

package it.besmart.service;

import it.besmart.models.Client;

import java.util.List;

public interface ClientService {

    Client findById(int id);

    void saveClient(Client client);

    void updateClient(Client client);

    void deleteClientById(int id);

    List <Client> findAllClients();

    Client findClientByName(String name);

    boolean isClientNameUnique(Integer id, String name);

}

It looks to me like it's quite straight everything... I'm quite new to this kind of application..Thanks

解决方案

This is the error message you are getting:

It's telling you you're mapping more than one method to handle a POST to the URL /new. If the web browser makes a POST request to the URL /new, which of your methods should handle it?

Here are the two offending methods:

    @RequestMapping(value = {"/new"}, method = RequestMethod.POST)
    public String newClient(ModelMap model){
        Client client = new Client();
        model.addAttribute("client", client);
        model.addAttribute("edit", false);
        return "registration";

    }

    @RequestMapping(value = {"/new"}, method = RequestMethod.POST)
    public String saveClient(@Valid Client client, BindingResult result, ModelMap model){
        if(result.hasErrors()){
            return "registration";
        }


        clientService.saveClient(client);
        model.addAttribute("success", "Client" + client.getNomeClient() + "registrato correttamente");

        return "success";

    }

I suspect that the first of these is incorrect; you probably want to use RequestMethod.GET instead of RequestMethod.POST for that.

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08-18 17:56
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