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

已发现bean并将其打印在Application.main（）中，为什么单元测试找不到它？

该单元测试失败，并显示：

org.springframework.beans.factory.UnsatisfiedDependencyException：创建名称为'com.pds.pdssr.etlfile.EtlFileServicesTest'的bean时出错：通过字段'etlFileServices'表示的不满意的依赖关系；嵌套的异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：没有类型为com.pds.pdssr.etlfile.EtlFileServices的合格Bean：应该至少有1个有资格作为自动装配候选的Bean。依赖注释：{@ org.springframework.beans.factory.annotation.Autowired（required = true）}

通过适当级别的调试，即“ org.springframework.context.annotation” =“ debug”，我可以看到在组件扫描期间发现了该bean。

尽管如此，单元测试的结果是：

[错误] getAll（com.pds.pdssr.etlfile.EtlFileServicesTest）经过的时间：0.007 s <<<错误！ org.springframework.beans.factory.UnsatisfiedDependencyException：创建名称为'com.pds.pdssr.etlfile.EtlFileServicesTest'的bean时出错：通过字段'etlFileServices'表示的不满意依赖关系；嵌套的异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：没有类型为com.pds.pdssr.etlfile.EtlFileServices的合格Bean：应该至少有1个有资格作为自动装配候选的Bean。依赖项注释：{@ org.springframework.beans.factory.annotation.Autowired（required = true）} 由以下原因导致：org.springframework.beans.factory.NoSuchBeanDefinitionException：没有类型为“ com.pds.pdssr.etlfile.EtlFileServices”的合格Bean：预计至少有1个有资格作为自动装配候选的Bean。依赖注释：{@ 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：

包com.pds.pdssr.bootstrap;

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

原始答案：

您需要

echo '<td><img src="' . base_url('uploads/' . $row->filename) . '" alt="" width="100%" height="100%"></td>';

在您的测试课程中。

基于评论的其他答案

如果您确实想在项目中使用nota_35="Acoustic Bass Drum" nota_36="Bass Drum 1" nota_37="Side Stick" nota_38="Acoustic Snare" nota_39="Hand Clap" Notas=((nota_35,'Acoustic Bass Drum'),(nota_36,'Bass Drum 1'),(nota_37,'Side Stick'),(nota_38,'Acoustic Snare'),(nota_39,'Hand Clap')) notas=models.CharField(max_length=20, choices=Notas)，则需要告诉spring框架明确拥有SessionContext。可以通过添加

来完成

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

到您的配置文件。 Here's a working example for your problem。

HTH

通过字段表示的不满意的依赖关系-Springboot应用程序，组件和测试类都在同一个包中

1 个答案: