Spring @Autowired字段为空。我在不同的班级使用@AutoWired Fields

时间:2015-12-24 08:37:58

标签: java spring autowired

以下是我的代码,其中@Autowired字段位于其中:

种皮

@ContextConfiguration("classpath:spring.xml")
public abstract class TestA extends AbstractTestNGSpringContextTests {

    @Autowired
    @Value("#{environment.username}")
    public String username;

    @Autowired
    @Value("#{environment.password}")
    public String password;

    @Autowired
    @Value("#{environment.passwordtoken}")
    public String passwordToken;
}

这是我尝试使用上述字符串变量的另一个类

public class TestData extends TestA {

    ForceApi api;


    public void setApi() {
        // Instantiating api by setting username and pwd
        System.out.println("In getApi");
        ApiConfig ac = new ApiConfig();
        ac.setUsername(username);
        ac.setPassword(passwordToken);             ac.setLoginEndpoint("https://login.salesforce.com/services/Soap/u/34.0/");

        api = new ForceApi(ac);
    }

    public void pTestData() {

        setApi();
        // Create test data for play group admin
        String idSoql = "SELECT id FROM PlayGroup__c";

        List<Map> mapResults = api.query(idSoql).getRecords();
    }
}

尝试使用以下类执行测试:

public class TestB extends TestA{
    @Test(dataProvider="browsers")
    public void test1(){
        TestData td = new TestData();
        td.pTestData();
    }

}

请帮我确定一下我做错了什么。我在这一行得到Null Pointer异常:

List<Map> mapResults = api.query(idSoql).getRecords();

1 个答案:

答案 0 :(得分:1)

我自己解决了上述问题。

我在使用@Autowired字段的类中使用了@Service(“testdata”)

@Service("testdata")
public class TestData extends TestA {

ForceApi api;


public void setApi() {
    // Instantiating api by setting username and pwd
    System.out.println("In getApi");
    ApiConfig ac = new ApiConfig();
    ac.setUsername(username);
    ac.setPassword(passwordToken);             ac.setLoginEndpoint("https://login.salesforce.com/services/Soap/u/34.0/");

    api = new ForceApi(ac);
}

public void pTestData() {

    setApi();
    // Create test data for play group admin
    String idSoql = "SELECT id FROM PlayGroup__c";

    List<Map> mapResults = api.query(idSoql).getRecords();
}

}

并在TestB中更改如下

public class TestB extends TestA{
@Test(dataProvider="browsers")
public void test1(){
    TestData td = (TestData )applicationContext.getBean("testdata");
    td.pTestData();
}

}

并在spring.xml中添加了bean,如下所示

<bean id="testdata" class="data.TestData"/> 

用Null指针Exception解决了我的问题。