Spring mvc hibernate多租户数据库方法

Dispatcher-servlet.xml

com.afflatus.edu.thoth.entity ${hibernate.dial} ${hibernate.show_sql} ${hibernate.dbm2ddl} 数据库 com.afflatus.edu.thoth.connection.MultiTenantConnectionProviderImpl com.afflatus.edu.thoth.context.MultiTenantIdentifier ResolveRimpl

这是我从中获取值的当前租户标识符代码 作为租户的spring上下文

这是主数据库源

package com.domain.master；
导入org.springframework.jdbc.datasource.driverManager数据源；
导入javax.sql.DataSource；
导入java.util.HashMap；
公共级万事达服务{
公共静态HashMap getDataSourceHashMap（）{
DriverManager数据源dataSource=新的DriverManager数据源（）；
setDriverClassName（“com.mysql.jdbc.Driver”）；
setUrl（“jdbc:mysql://localhost:3306/multiten");
dataSource.setUsername（“根”）；
dataSource.setPassword（“根”）；
DriverManager数据源dataSource1=新的DriverManager数据源（）；
dataSource1.setDriverClassName（“com.mysql.jdbc.Driver”）；
dataSource1.setUrl（“jdbc:mysql://localhost:3306/multiten_1");
dataSource1.setUsername（“根”）；
dataSource1.setPassword（“根”）；
HashMap HashMap=新的HashMap（）；
hashMap.put（“tenantId1”，数据源）；
hashMap.put（“kartiktamta@gmail.com“，数据源1）；
返回hashMap；
}
}

使用springsecurity身份验证上下文获取值，并在登录geetting null指针错误后将其指定给租户。somenone能帮我吗先生请帮我

<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
   <property name="autodetectDataSource" value="false" />
   <property name="sessionFactory" ref="sessionFactory" />
</bean

package com.domain.multitenancy;

import org.hibernate.context.spi.CurrentTenantIdentifierResolver;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

public class CurrentTenantIdentifierResolverimpl implements CurrentTenantIdentifierResolver {

    @Override
    public String resolveCurrentTenantIdentifier() {
        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
        String tenantId = auth.getName(); 
        if (tenantId==null){
            
            return "tenantId1";
        }
        
        
        return tenantId;
    }

    @Override
    public boolean validateExistingCurrentSessions() {
        // TODO Auto-generated method stub
        return false;
    }

package com.domain.multitenancy;

import javax.sql.DataSource;

import 
org.hibernate.engine.jdbc.connections.spi.AbstractDataSourceBasedMultiTenantConnectionProviderImpl;

import com.domain.master.MasterService;



    public class MultiTenantConnectionprovideImpl extends
            AbstractDataSourceBasedMultiTenantConnectionProviderImpl  {

        @Override
        protected DataSource selectAnyDataSource() {
         return MasterService.getDataSourceHashMap().get("tenantId1");
        }

        @Override
        protected DataSource selectDataSource(String tenantIdentifier) {
        
        return MasterService.getDataSourceHashMap().get(tenantIdentifier);
        }
       
        
    

    
}

package com.domain.master;

import org.springframework.jdbc.datasource.DriverManagerDataSource;
import javax.sql.DataSource;
import java.util.HashMap;



public class MasterService {
    
     public static HashMap<String, DataSource> getDataSourceHashMap() {
         
            DriverManagerDataSource dataSource = new DriverManagerDataSource();
            dataSource.setDriverClassName("com.mysql.jdbc.Driver");
            dataSource.setUrl("jdbc:mysql://localhost:3306/multiten");
            dataSource.setUsername("root");
            dataSource.setPassword("root");
            
            DriverManagerDataSource dataSource1 = new DriverManagerDataSource();
            dataSource1.setDriverClassName("com.mysql.jdbc.Driver");
            dataSource1.setUrl("jdbc:mysql://localhost:3306/multiten_1");
            dataSource1.setUsername("root");
            dataSource1.setPassword("root");
            
            HashMap<String, DataSource> hashMap = new HashMap<String, DataSource>();
            hashMap.put("tenantId1", dataSource);
            hashMap.put("kartiktamta@gmail.com", dataSource1);
            return hashMap;
        }

    }