Freemarker Junit 测试中没有可用的 'javax.persistence.EntityManagerFactory' 类型的合格 Bean

问：

我尝试使用 Spring 和 Freemarker 模板解决方案生成 pdf 文档。当我尝试使用Junit测试运行文档生成时，我有一个关于上下文加载的错误，说：

没有“javax.persistence.EntityManagerFactory”类型的限定 Bean 可用

我的项目不使用 Spring Boot，而只使用 Spring Core 和 Spring MVC。任何人都可以帮助我解决我的问题，因为我被卡住了。

Freemarker 配置 ：

package com.omb;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
import org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = {"com.omb"})
public class FreeMarkerConfiguration implements WebMvcConfigurer {

    @Bean
    public FreeMarkerViewResolver freemarkerViewResolver() {
        FreeMarkerViewResolver resolver = new FreeMarkerViewResolver();
        resolver.setCache(true);
        resolver.setPrefix("");
        resolver.setSuffix(".ftl");
        return resolver;
    }

    @Bean
    public FreeMarkerConfigurer freemarkerConfig() {
        FreeMarkerConfigurer configurer = new FreeMarkerConfigurer();
        configurer.setTemplateLoaderPath("/WEB-INF/freemarker");
        return configurer;
    }
}

Junit 测试

package com.omb.test;

import freemarker.template.TemplateException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.HashMap;
import java.util.Map;



@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes= FreeMarkerConfiguration.class)
@WebAppConfiguration
public class DocGeneratorTest {


    @Test
    public void testGenerateDoc() throws IOException, TemplateException {
        Map params = Map.of(PAGE_SIZE, PRINTER);
        Map<String, Object> map = new HashMap<>();
        byte[] content = DocGeneratorUtils.generateDoc("TEMPLATE_NAME", Files.readString(Path.of("./src/test/resources/model/template.html")), map, params);
        try (FileOutputStream fos = new FileOutputStream(name + ".pdf")) {
            fos.write(content);
        }
    }

}

叠：

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManagerFactory' available
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1221)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:565)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:528)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:696)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:669)
    at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:228)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessProperties(PersistenceAnnotationBeanPostProcessor.java:348)
    ... 43 more