获取GroovyCastException:无法将类为“java.lang.String”的对象“chand”强制转换为grails应用程序中的类“com.vproc.member.MyUserDetails”

我正在使用grails应用程序，作为管理员，我可以将订阅者添加到我的应用程序中。当我尝试通过subscriber/create添加新订阅者时，一封邮件将转到提供的电子邮件id，然后订阅者必须单击电子邮件中提供的链接。但当订户填写所有信息并单击时，我得到以下错误

Cannot cast object 'chand' with class 'java.lang.String' to class 'com.vproc.member.MyUserDetails'. Stacktrace follows:
org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'chand' with class 'java.lang.String' to class 'com.vproc.member.MyUserDetails'

从SubscriberService.groovy获取以下方法时出错

package com.vrpoc.service.member

import grails.plugin.springsecurity.SpringSecurityUtils;
import org.springframework.dao.DataAccessException;
import org.springframework.security.core.authority.GrantedAuthorityImpl;
import org.springframework.security.core.userdetails.UserDetails;

import com.vproc.member.Customer;
import com.vproc.member.MyUserDetails;
import com.vproc.member.Organization;
import com.vproc.member.Person;
import com.vproc.member.Subscriber;
import com.vproc.member.SubscriberRole;

@Transactional
class MyUserDetailsService implements UserDetailsService{

    def springSecurityServivce

    static final List NO_ROLES = [new GrantedAuthorityImpl(SpringSecurityUtils.NO_ROLE)]

    UserDetails loadUserByUsername(String username, boolean loadRoles) throws UsernameNotFoundException {
        return loadUserByUsername(username)
    }


    UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        Subscriber.withTransaction {
            status ->

            Person user = Person.findByUsername(username)
            if (!user)
                throw new UsernameNotFoundException( 'User not found', username)

            def session = RequestContextHolder.currentRequestAttributes().session
            def params = RequestContextHolder.currentRequestAttributes().params
            def newOrgId = params["orgId"]

            List<Subscriber> subscribers = []
            List<Organization> orgs = []
            def currentSubscriber = null
            if ( session["orgs"] == null && newOrgId == null){
                subscribers = Subscriber.findAllByParty( user) // get all subscribers for this person

                subscribers.each {  orgs.add(it.customer.party ) }  // get all customer and then orgs for subscribers
                session["orgs"] = orgs   // add orgs to session
                session["currentOrg"] = orgs.get(0);

                currentSubscriber = subscribers.get(0)
                currentSubscriber.contacts.size()

            }else if ( newOrgId){

                def currentOrgId = newOrgId
                Organization organization = Organization.get(currentOrgId)
                session["currentOrg"] = organization;
                Customer customer = Customer.findByParty( organization)
                currentSubscriber = Subscriber.findByCustomerAndParty( customer, user)
            }

        println  currentSubscriber.customer.party.orgName

            /*
            def newContextOrgId = session["currentOrgId"]
            def currentSubscriber = session["currentSubscriber"]
            if ( newContextOrgId == null ){
                def customer = Customer.findByParty( Organization.get(newContextOrgId))
                def person  = Person.get(springSecurityServivce.principal.id );
                subscriber = Subscriber.findByPartyAndCustomer( person, customer)
                session["currentSubscriber"] = subscriber
            } */


            def authorities = SubscriberRole.findAllBySubscriber(currentSubscriber).collect  {
                new GrantedAuthorityImpl(it.role.authority)
            } as Set

            return new MyUserDetails(user.username, user.password, user.enabled, !user.accountExpired, !user.passwordExpired, !user.accountLocked,
                                        authorities ?: NO_ROLES, user.id, user.firstName , user.lastName,  currentSubscriber )
        }
    }

}

MyUserDetailsService.groovy

package com.vrpoc.service.member

import grails.plugin.springsecurity.SpringSecurityUtils;
import org.springframework.dao.DataAccessException;
import org.springframework.security.core.authority.GrantedAuthorityImpl;
import org.springframework.security.core.userdetails.UserDetails;

import com.vproc.member.Customer;
import com.vproc.member.MyUserDetails;
import com.vproc.member.Organization;
import com.vproc.member.Person;
import com.vproc.member.Subscriber;
import com.vproc.member.SubscriberRole;

@Transactional
class MyUserDetailsService implements UserDetailsService{

    def springSecurityServivce

    static final List NO_ROLES = [new GrantedAuthorityImpl(SpringSecurityUtils.NO_ROLE)]

    UserDetails loadUserByUsername(String username, boolean loadRoles) throws UsernameNotFoundException {
        return loadUserByUsername(username)
    }


    UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        Subscriber.withTransaction {
            status ->

            Person user = Person.findByUsername(username)
            if (!user)
                throw new UsernameNotFoundException( 'User not found', username)

            def session = RequestContextHolder.currentRequestAttributes().session
            def params = RequestContextHolder.currentRequestAttributes().params
            def newOrgId = params["orgId"]

            List<Subscriber> subscribers = []
            List<Organization> orgs = []
            def currentSubscriber = null
            if ( session["orgs"] == null && newOrgId == null){
                subscribers = Subscriber.findAllByParty( user) // get all subscribers for this person

                subscribers.each {  orgs.add(it.customer.party ) }  // get all customer and then orgs for subscribers
                session["orgs"] = orgs   // add orgs to session
                session["currentOrg"] = orgs.get(0);

                currentSubscriber = subscribers.get(0)
                currentSubscriber.contacts.size()

            }else if ( newOrgId){

                def currentOrgId = newOrgId
                Organization organization = Organization.get(currentOrgId)
                session["currentOrg"] = organization;
                Customer customer = Customer.findByParty( organization)
                currentSubscriber = Subscriber.findByCustomerAndParty( customer, user)
            }

        println  currentSubscriber.customer.party.orgName

            /*
            def newContextOrgId = session["currentOrgId"]
            def currentSubscriber = session["currentSubscriber"]
            if ( newContextOrgId == null ){
                def customer = Customer.findByParty( Organization.get(newContextOrgId))
                def person  = Person.get(springSecurityServivce.principal.id );
                subscriber = Subscriber.findByPartyAndCustomer( person, customer)
                session["currentSubscriber"] = subscriber
            } */


            def authorities = SubscriberRole.findAllBySubscriber(currentSubscriber).collect  {
                new GrantedAuthorityImpl(it.role.authority)
            } as Set

            return new MyUserDetails(user.username, user.password, user.enabled, !user.accountExpired, !user.passwordExpired, !user.accountLocked,
                                        authorities ?: NO_ROLES, user.id, user.firstName , user.lastName,  currentSubscriber )
        }
    }

}

---

不知道为什么会这样。请告诉我您需要在此处显示更多代码。

尝试使用springSecurityService.currentUser代替springSecurityService.principalhi@tim_yates，尽管新订户已成功添加到系统中。但首先我必须从应用程序中注销，然后我可以使用新的subscrberon本地主机登录。嗨，@tim_yates根据你的建议，我甚至无法登录到我的应用程序。还有其他建议吗你也可以添加MyUserDetails吗？嗨@dmahapatro，我已经更新了我的问题。请看一看。