Spring对JUnit4和junit5的支持-编程知识

Spring对JUnit4和junit5的支持

Junit4支持

第一步：准备工作：
引入JUnit4的依赖，Spring对JUnit支持的依赖还是：spring-test，如下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.powernode</groupId><artifactId>spring6-015-junit</artifactId><version>1.0-SNAPSHOT</version><packaging>jar</packaging><!--仓库--><repositories><!--spring里程碑版本的仓库--><repository><id>repository.spring.milestone</id><name>Spring Milestone Repository</name><url>https://repo.spring.io/milestone</url></repository></repositories><dependencies><!--spring context依赖--><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>6.0.10</version></dependency><!--spring对junit的支持相关依赖--><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>6.0.10</version></dependency><!--junit4依赖--><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13.2</version><scope>test</scope></dependency></dependencies><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target></properties></project>

第二步：创建配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"><!--组件扫描--><context:component-scan base-package="com.powernode.spring6.service"/><!--开启aspect的自动代理--><aop:aspectj-autoproxy proxy-target-class="true"/>
</beans>

第三步：单元测试：

package com.powernode.spring6.test;import com.powernode.spring6.bean.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;/*** @author * @version 1.0* @className SpringJUnit4Test* @since 1.0**/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:spring.xml")
public class SpringJUnit4Test {@Autowiredprivate User user;@Testpublic void testUser(){System.out.println(user.getName());}
}

测试就不需要一直写注释掉的那两行了，可以直接用
在这里插入图片描述

Junit5支持

对junit5的支持即引入junit5的依赖就可以了，将版本换成5点几就好了

    <dependency><groupId>org.junit.jupiter</groupId><artifactId>junit-jupiter</artifactId><version>5.9.0</version><scope>test</scope></dependency>

单元测试类中，其余的没变，但是@RunWith（SpringJunit4ClassRunner.class）变成了@ExtendWith(SpringExtention.class)


@ExtendWith(SpringExtension.class)
@ContextConfiguration("classpath:spring.xml")
public class SpringJUnit5Test {@Autowiredprivate User user;@Testpublic void testUser(){System.out.println(user.getName());}
}