[英]Junit tests in Java (Spring, MVC) for DAO and Service
我想給DAO寫一個Junit測試。 項目本身。 所有類和方法都有效。 測試中的所有數據正確無誤。 為什么不好?
例外是---無法自動連線字段:private com.epam.edu.jtc.dao.CoursesDAOImpl com.epam.edu.jtc.test.CourseTest.coursesDao; 嵌套的異常是org.springframework.beans.factory.NoSuchBeanDefinitionException:沒有找到類型為[com.epam.edu.jtc.dao.CoursesDAOImpl]的合格Bean作為依賴項:至少應有1個可作為該依賴項的自動裝配候選的bean。 依賴項注釋:{@ org.springframework.beans.factory.annotation.Autowired(required = true)}
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:test-context.xml" })
public class CourseTest
{
@Autowired
private CoursesDAOImpl coursesDao;
@Test
public void testFindCourseById()
{
Course course = coursesDao.findCourseById(322);
Assert.assertEquals("Python", course.getName());
Assert.assertEquals("Development Manager", course.getCategory());
Assert.assertEquals("python.com", course.getLinks());
return;
}
}
test-context.xml
<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"
xmlns:security="http://www.springframework.org/schema/security"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
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-3.2.xsd">
<!-- the test application context definition for the jdbc based tests -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close"
p:driverClassName="org.h2.Driver"
p:url="jdbc:h2:tcp://localhost:9092/~/QWE;INIT=create schema if not exists QWE\;"
p:username="sa"
p:password=""
/>
課程DAO.java
public interface CoursesDAO {
public Course findCourseById(Integer key);
}
課程DAOImpl.java
@Repository
public class CoursesDAOImpl implements CoursesDAO {
@Autowired
private SessionFactory sessionFactory;
public Course findCourseById(Integer id) {
Session session = sessionFactory.getCurrentSession();
session.beginTransaction();
Course course = (Course) session.get(Course.class, id);
session.getTransaction().commit();
return course;
}
您應該自動連接接口,而不是實現類,如下所示:
@Autowired
private CoursesDAO coursesDao;
希望能幫助到你。
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