1.  建立一個目錄，右鍵--  設定為測試目錄

2.  maven專案中，需要重新新增依賴

如果新增失敗，報錯的話，可能是複製過去，報錯，直接複製下面的網址，找到對應的版本去重新拿到依賴的那個

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>RELEASE</version>
    <scope>test</scope>
</dependency>
<!--  https://mvnrepository.com/artifact/junit/junit  -->
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>test</scope>
</dependency>
<!--  https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
    <groupId>org.springframewomework</groupId>
    <artifactId>spring-test</artifactId>
    <version>4.3.3.RELEASE</version>
    <scope>test</scope>
</dependency>
 

gradle 專案中：

dependencies {
    compile spring_core,spring_web,mybatis
    compile jdbc,json,logging,apache_commons

    providedCompile servlet

    testCompile group: 'junit', name: 'junit', version: '4.12'
    testCompile group:'org.springframework', name:'spring-test', version:'4.3.3.RELEASE'

}
 

3. 建立的測試類中，添加註釋：（對應的包和註釋，這是放在類前面的）

import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {
        "classpath:application-context.xml"
})
public   class  TestMeng{  }