修正

springboot_04_junit/src/test/java/com/yv/Springboot04JunitApplicationTests.java

@@ -5,17 +5,21 @@ import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
+/**
+ * @RunWith(设置运行器)
+ * @ContextConfiguration(classes)
+ */
 @SpringBootTest
 class Springboot04JunitApplicationTests {
 
-	//1.注入你要测试的对象
-	@Autowired
-	private BookDao bookDao;
+    //1.注入你要测试的对象
+    @Autowired
+    private BookDao bookDao;
 
-	@Test
-	void contextLoads() {
-		//2.执行要测试的对象对应的方法
-		bookDao.save();
-	}
+    @Test
+    void contextLoads() {
+        //2.执行要测试的对象对应的方法
+        bookDao.save();
+    }
 
 }