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[英]org.springframework.beans.factory.BeanCreationException problem
[英]org.springframework.beans.factory.BeanCreationException & org.springframework.beans.BeanInstantiationException,No default constructor found
如果我想將Facebook參數注入構造函數,則嘗試使用facebook api使用spring + thymeleaf + hibernate創建一個Facebook應用程序
它顯示以下錯誤
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'facebookController' defined in file [D:\ff-sdefault constructor found; nested exception is java.lang.NoSuchMethodException: com.ff.FacebookController$$EnhancerByCGLIB$$80bb261.<init>()
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1030)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:975)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:665)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext.refresh(AnnotationConfigEmbeddedWebApplicationContext.java:193)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:514)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:281)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:697)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:686)
at com.fff.Application.main(Application.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.ff.FacebookController$$EnhancerByCGLIB$$80bb261]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.fff.FacebookController$$EnhancerByCGLIB$$80bb261.<init>()
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:85)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1023)
... 21 more
Caused by: java.lang.NoSuchMethodException: com.fff.FacebookController$$EnhancerByCGLIB$$80bb261.<init>()
at java.lang.Class.getConstructor0(Class.java:2800)
at java.lang.Class.getDeclaredConstructor(Class.java:2043)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:80)
... 22 more
2013-11-04 16:30:27.157 INFO 5132 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
這是代碼
package com.fff;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.social.facebook.api.Facebook;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import javax.inject.Inject;
@Controller
@RequestMapping("/facebook")
@Configuration
@ComponentScan("com.fff.service")
public class FacebookController {
private Facebook facebook;
@Autowired
private RegisterUserService registerUserService;
@Inject
public FacebookController(Facebook facebook) {
this.facebook = facebook;
}
@RequestMapping(value = "/register", method = RequestMethod.GET)
public String register(Model model) {
if (!facebook.isAuthorized()) {
return "redirect:/connect/facebook";
}
String email = facebook.userOperations().getUserProfile().getEmail();
String name = facebook.userOperations().getUserProfile().getName();
String firstName = facebook.userOperations().getUserProfile().getFirstName();
String lastName = facebook.userOperations().getUserProfile().getLastName();
String middleName = facebook.userOperations().getUserProfile().getMiddleName();
String dateOfBirth = facebook.userOperations().getUserProfile().getBirthday();
String userName = facebook.userOperations().getUserProfile().getUsername();
String gender = facebook.userOperations().getUserProfile().getGender();
String religion = facebook.userOperations().getUserProfile().getReligion();
model.addAttribute("user", new User(name, firstName, lastName));
return "registration";
}
@RequestMapping(value = "/save", method = RequestMethod.POST)
public String save(Model model, User user) {
registerUserService.registerUser(user);
return "redirect:/";
}
}
您的“ FacebookController”沒有默認構造函數public FacebookController()
,Spring需要它來創建一個新的bean。 當您聲明構造函數public FacebookController(Facebook facebook)
,您將告訴Spring僅現有的構造函數接收一個參數。
您可以讓默認的構造函數像
@Autowire
private Facebook facebook;
public FacebookController() { }
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