Spring——整合junit4、junit5使用方法

spring需要创建spring容器，每次创建容器

单元测试是测试单元代码

junit4

依赖

<?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">
    <parent>
        <artifactId>02-Spring</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>023-jUnit</artifactId>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>6.0.4</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>6.0.4</version>
        </dependency>
    </dependencies>
</project>

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.xsd
                            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<!--    开启扫描-->
    <context:component-scan base-package="com.powernode.spring6.bean"/>
</beans>

实体类

package com.powernode.spring6.bean;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

/**
 * @BelongsProject: 02-Spring
 * @BelongsPackage: com.powernode.spring6.bean
 * @Author: dengLiMei
 * @CreateTime: 2023-02-21  09:07
 * @Description: TODO
 * @Version: 1.0
 */
@Component
public class User {
    @Value("张三")
    private String name;

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                '}';
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

主函数

没有使用junit4之前

public class SpringJunit4Test {
    @Test
    public void testUser(){
        ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
        User user = context.getBean("user", User.class);
        System.out.println(user.getName());
    }

    public void testUser1(){
        ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
        User user = context.getBean("user", User.class);
        System.out.println(user.getName());
    }

    public void testUser2(){
        ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
        User user = context.getBean("user", User.class);
        System.out.println(user.getName());
    }
}
}

使用junit4之后

//Spring对Junit4的支持
@RunWith(SpringRunner.class)
@ContextConfiguration("classpath:spring.xml")
public class SpringJunit4Test {
    @Autowired
    private User user;

    @Test
    public void testUser() {
        System.out.println(user.getName());
    }

    public void testUser1() {
        System.out.println(user.getName());
    }

    public void testUser2() {
        System.out.println(user.getName());
    }

通过一张图我们来对比一下更直观，如下图：

junit5

依赖

<?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">
    <parent>
        <artifactId>02-Spring</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>023-jUnit5</artifactId>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>6.0.4</version>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>5.9.2</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>6.0.4</version>
        </dependency>
    </dependencies>
</project>

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.xsd
                            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!--    开启扫描-->
    <context:component-scan base-package="bean"/>
</beans>

实体类

package bean;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

/**
 * @BelongsProject: 02-Spring
 * @BelongsPackage: com.powernode.spring6.bean
 * @Author: dengLiMei
 * @CreateTime: 2023-02-21  09:07
 * @Description: TODO
 * @Version: 1.0
 */
@Component
public class User {
    @Value("张三")
    private String name;

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                '}';
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

主函数

import bean.User;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit.jupiter.SpringExtension;

/**
 * @BelongsProject: 02-Spring
 * @BelongsPackage: PACKAGE_NAME
 * @Author: dengLiMei
 * @CreateTime: 2023-02-21  11:18
 * @Description: TODO
 * @Version: 1.0
 */
@ExtendWith(SpringExtension.class)
@ContextConfiguration("classpath:spring.xml")
public class Main {

    @Autowired
    private User user;

    @Test
    public void testUser() {
        System.out.println(user.getName());
    }

    public void testUser1() {
        System.out.println(user.getName());
    }

    public void testUser2() {
        System.out.println(user.getName());
    }
}

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Spring——整合junit4、junit5使用方法

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