导入Spring整合Junit的jar包，Junit必须在4.11版本以上
<dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.0.2.RELEASE</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13</version> <scope>test</scope> </dependency> </dependencies>
使用Junit提供的注解把原有的main方法替换成spring提供的main方法@RunWith(SpringJUnit4ClassRunner.class)
告知spring运行器，spring和ioc创建是基于xml配置还是注解配置，并且说明位置。@ContextConfiguration
属性：location指定xml文件的位置，加上classpath，标识在类路径下；classes指定注解类所在的位置
package com.mypro.test; ? import com.mypro.entity.Words; import com.mypro.service.WordsService; import com.mypro.service.impl.WordsServiceImpl; import config.SpringConfiguration; import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationContext; import org.springframework.context.annotation.AnnotationConfigApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; ? import java.util.Date; import java.util.List; ? @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(classes = SpringConfiguration.class) public class WordsServiceTest { // 完成以上步骤才可以自动注入 @Autowired private WordsService wordsService; ? @Test public void testFindAll(){ List<Words> all = wordsService.findAll(); for (Words words : all) { System.out.println(words); } } } ?
原文：https://www.cnblogs.com/aitiknowledge/p/12718170.html