通过Field-SpringBoot表示的不满足依赖应用程序、组件和测试类都在同一个包中

Question

我的理解是SpringBootApplication注释包括ComponentScan

https://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-using-springbootapplication-annotation.html

bean是在application.main（）中发现并打印的，为什么单元测试没有找到它？

此单元测试失败的原因是：

org.springframework.beans.factory.unsatisfieddependencyException：创建名为“com.pds.pdssr.etlfile.etlfileServiceStest”的bean时出错：通过字段“etl fileServices”表示的不满足的依赖项；嵌套异常为org.springframework.beans.factory.noSuchBeanDefinitionException：没有“com.pds.pdssr.etlfile.etlfileServices”类型的合格bean可用：应至少有一个合格的自动候选bean。依赖项注释：{@org.SpringFramework.Beans.Factory.Annotation.AutoWired(required=true)}

[错误]getAll（com.pds.pdssr.etlfile.etlfileServiceStest）已用时间：0.007s<<<错误！org.springframework.beans.factory.unsatisfieddependencyException：创建名为“com.pds.pdssr.etlfile.etlfileServiceStest”的bean时出错：通过字段“etl fileServices”表示的不满足的依赖项；嵌套异常为org.springframework.beans.factory.noSuchBeanDefinitionException：没有“com.pds.pdssr.etlfile.etlfileServices”类型的合格bean可用：应至少有一个合格的自动候选bean。依赖项批注：{@org.springframework.beans.factory.annotation.AutoWired(required=true)}导致得原因：org.springframework.beans.factory.NoSuchBeanDefinitionException：没有“com.pdssr.etlfile.etlfileServices”类型得合格bean可用：应至少有一个合格得自动连接候选bean.依赖项注释：{@org.SpringFramework.Beans.Factory.Annotation.AutoWired(required=true)}

应用程序：

package com.pds.pdssr.bootstrap;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;

//@EnableJpaRepositories("com.pds.pdsssr.jpa")
@SpringBootApplication
// @EntityScan("com.pds.pdssr.models")
public class Application {

    private static final Logger logger = LoggerFactory.getLogger(Application.class);

    public static void main(String[] args) {
        ApplicationContext applicationContext = SpringApplication.run(Application.class, args);
        for (String name : applicationContext.getBeanDefinitionNames()) {
            logger.info("bean: " + name);
        }
    }
}

组件：

import java.util.List;

import javax.persistence.EntityManagerFactory;
import javax.transaction.Transactional;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.pds.pdssr.models.EtlFile;

@Repository
public class EtlFileServices {

    @Autowired
    private static EntityManagerFactory entityManagerFactory;

    public SessionFactory getSessionFactory() {
        SessionFactory sessionFactory = null;
        if (entityManagerFactory == null) {
            throw new IllegalStateException("entityManagerFactory is null");
        }
        sessionFactory = entityManagerFactory.unwrap(SessionFactory.class);
        if (sessionFactory == null) {
            throw new NullPointerException("factory is not a hibernate factory");
        }
        return sessionFactory;
    }


    @SuppressWarnings("unchecked")
    public List<EtlFile> getAll() {
        return getAll("etlFile",getSessionFactory().getCurrentSession());
    }

    @SuppressWarnings("rawtypes")
    protected List getAll(String tableName, Session session) {
        String queryText = "from " + tableName;
        return getList(tableName, queryText, session);
    }


    @SuppressWarnings("rawtypes")
    protected List getList(String tableName, String queryText, Session session) {
        long start = System.nanoTime();

        Query query = session.createQuery(queryText);
        List result = query.list();
        long end = System.nanoTime();
        long millis = (end - start) / 1000000;
        //logger.debug("table: " + tableName + " millis " + millis + " rows:  " + result.size());
        return result;
    }


}

测试类：

import java.util.List;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.junit4.SpringRunner;

import com.pds.pdssr.bootstrap.EtlFileServices;
import com.pds.pdssr.models.EtlFile;

@RunWith(SpringRunner.class)
public class EtlFileServicesTest {
    @Autowired
    private EtlFileServices etlFileServices;

    @Test 
    public void getAll() {
        List<EtlFile>  etlFiles = etlFileServices.getAll();
        assertNotNull(etlFiles);
    }

}

Answer 1

原答案：

你需要

@RunWith(SpringRunner.class)
@SpringBootTest(classes = YourMainClass.class)

在您的测试类中。

spring.jpa.properties.hibernate.current_session_context_class = org.springframework.orm.hibernate5.SpringSessionContext