Question

我在@Autowired注释中遇到问题

autoWiredLocallyTest（）传递

autoWireAtClassTest（）失败

以下是我的测试用例：

    /**
   * Spring Autowired test.
   */
   @ContextConfiguration(locations = {"classpath:applicationContext.xml"})
   @RunWith(SpringJUnit4ClassRunner.class)
   public class AutowiredTest {
    @Autowired
    private ActionBeans localBeans;

    @Test
    public void autoWiredLocallyTest(){
        //pre-test
        Assert.assertNotNull(localBeans);
    }

    @Test
    public void autoWireAtClassTest(){
        TestClazz t = new TestClazz();
        boolean isAutoWiredFromClass =  t.isAutowired();
        Assert.assertTrue(isAutoWiredFromClass);
    }
   }

TestClazz是：

public class TestClazz {
    @Autowired
    @Qualifier("actions")
    private ActionBeans tempowieBiny;

    public boolean isAutowired(){
        return(this.tempowieBiny!=null);
    }
}

的applicationContext.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <import resource="actions.xml" />
    <import resource="datasources.xml" />
</beans>

actions.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id='actions' class="net.virtalab.jsonio.configuration.actions.ActionBeans" scope="singleton">
        <qualifier value="actions" />
    </bean>

</beans>

错误或未完成，但需要做什么？

我使用Spring 3.2.5-RELEASE。

Answer 1

您正在使用新运算符（TestClazz）实例化TestClazz t = new TestClazz();。如果希望正确初始化@autowired bean，则需要从spring上下文加载它。

尝试：

@Autowired
ApplicationContext testContext;


@Test
public void autoWireAtClassTest(){
    // TestClazz t = new TestClazz();
    TestClazz t = (TestClazz)testContext.getBean(TestClazz.class);
    boolean isAutoWiredFromClass =  t.isAutowired();
    Assert.assertTrue(isAutoWiredFromClass);
}

Answer 2

这里的问题是你每次都在创建新的TestClazz对象。自动换行：

 @ContextConfiguration(locations = {"classpath:applicationContext.xml"})
   @RunWith(SpringJUnit4ClassRunner.class)
   public class AutowiredTest {
    @Autowired
    private ActionBeans localBeans;

    // Added here
    @Autowired
    private TestClazz t;

    @Test
    public void autoWiredLocallyTest(){
        //pre-test
        Assert.assertNotNull(localBeans);
    }

    @Test
    public void autoWireAtClassTest(){
        //TestClazz t = new TestClazz(); COMMENTED OUT
        boolean isAutoWiredFromClass =  t.isAutowired();
        Assert.assertTrue(isAutoWiredFromClass);
    }
   }

@Autowired在课堂上

2 个答案: