Spring Social—是否可能，如果可能，如何覆盖ConnectController中的方法？
我试图实现的是，如果没有可用的会话，那么在尝试连接到服务提供商时，首先创建一个会话，然后创建第二个会话，因为我的客户端不是浏览器而是HttpClient，我希望connectionStatus方法返回json而不是html 我尝试直接从ConnectController扩展，但我怀疑幕后发生了很多事情，因此不太清楚错误到底告诉了我什么：Spring Social—是否可能，如果可能，如何覆盖ConnectController中的方法？,spring,spring-social,Spring,Spring Social,我试图实现的是，如果没有可用的会话，那么在尝试连接到服务提供商时，首先创建一个会话，然后创建第二个会话，因为我的客户端不是浏览器而是HttpClient，我希望connectionStatus方法返回json而不是html 我尝试直接从ConnectController扩展，但我怀疑幕后发生了很多事情，因此不太清楚错误到底告诉了我什么： @Controller @RequestMapping("/connect") public class MyConnectController exten
@Controller
@RequestMapping("/connect")
public class MyConnectController extends ConnectController {
@Inject
public MyConnectController(
ConnectionFactoryLocator connectionFactoryLocator,
ConnectionRepository connectionRepository) {
super(connectionFactoryLocator, connectionRepository);
// TODO Auto-generated constructor stub
}
@RequestMapping(value = "/{providerId}", method = RequestMethod.GET)
public String get(@PathVariable String providerId, NativeWebRequest request) {
return "I'll return a json string here, OK?";
}
@Override
@RequestMapping(value = "/{providerId}", method = RequestMethod.POST)
public RedirectView connect(@PathVariable String providerId,
NativeWebRequest request) {
System.out.println("I'll create a new session here, OK?");
return super.connect(providerId, request);
}
}
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/web/servlet/config/annotation/DelegatingWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping found. Cannot map 'myConnectController' bean method
public java.lang.String org.springframework.social.connect.web.ConnectController.connectionStatus(java.lang.String,org.springframework.web.context.request.NativeWebRequest,org.springframework.ui.Model)
to {[/connect/{providerId}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already 'myConnectController' bean method
public org.springframework.web.servlet.view.RedirectView com.buzz.social.connect.MyConnectController.get(java.lang.String,org.springframework.web.context.request.NativeWebRequest) mapped.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1486)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.IllegalStateException: Ambiguous mapping found. Cannot map 'myConnectController' bean method
public java.lang.String org.springframework.social.connect.web.ConnectController.connectionStatus(java.lang.String,org.springframework.web.context.request.NativeWebRequest,org.springframework.ui.Model)
to {[/connect/{providerId}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already 'myConnectController' bean method
public org.springframework.web.servlet.view.RedirectView com.buzz.social.connect.MyConnectController.get(java.lang.String,org.springframework.web.context.request.NativeWebRequest) mapped.
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod(AbstractHandlerMethodMapping.java:171)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods(AbstractHandlerMethodMapping.java:145)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:107)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:87)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:163)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1483)
... 22 more
问题的原因是，在中已经存在与您的
get（…）connectionStatus@RequestMapping(value="/{providerId}", method=RequestMethod.GET)
public String connectionStatus(@PathVariable String providerId, NativeWebRequest request, Model model) {
....
}
将
get（…）myConnectController