Spring转换服务未正确初始化以进行测试

Question

我正在使用spring Boot1.5.9编写一个小型rest服务器。我刚开始使用初始化代码，就被这种奇怪的行为卡住了。

我有个小测试-

@RunWith(SpringRunner.class)
@SpringBootTest
public class TestMongo {

    @Autowired
    private MongoOperations mongoOps; 

    @Test
    public void testMongoConnection() {
        assertFalse(mongoOps.collectionExists("test"));
    }
}

最初，Application.Properties被忽略。在我添加了@SpringBootTest注释之后，application.properties被读取，但开始出现以下错误。

配置bean如下所示-

@Configuration
@EnableConfigurationProperties(MongoProperties.class)
public class SpringConfiguration {

    private MongoProperties mongoPropertiesConfiguration;

    public MongoProperties getMongoConfiguration() {
        return mongoPropertiesConfiguration;
    }


    @Autowired
    public void setMongoConfiguration(MongoProperties mongoConfiguration) {
        this.mongoPropertiesConfiguration = mongoConfiguration;
    }



    public @Bean MongoClient mongoClient() {
        return new MongoClient(mongoPropertiesConfiguration.getHost(), mongoPropertiesConfiguration.getPort());
    }

    public @Bean MongoDbFactory mongoDbFactory() {
        return new SimpleMongoDbFactory(mongoClient(), mongoPropertiesConfiguration.getDb());
    }

    public @Bean MongoOperations mongoOperations() {
        return new MongoTemplate(mongoDbFactory());
    }
}

而且

@ConfigurationProperties(prefix="mongo")
public class MongoProperties {

    private String host;
    private Integer port;
    private String db;

    public String getHost() {
        return host;
    }
    public void setHost(String host) {
        this.host = host;
    }
    public Integer getPort() {
        return port;
    }
    public void setPort(Integer port) {
        this.port = port;
    }
    public String getDb() {
        return db;
    }
    public void setDb(String db) {
        this.db = db;
    }

}

我确实使用@EnableAutoConfiguration注释而不是@SpringBootTest运行了测试。但这只对其中一个测试有效。我认为测试在哪个包中很重要，我认为@EnableAutoConfiguration可能不是正确的方法。

mongo.host=localhost
mongo.port=${mongo.port:27017}
mongo.db=${mongo.db:synctool}

Answer 1

我不知道你的语法

mongo.port=${mongo.port:27017}

spring尝试将${Mongo.Port:27017}转换为MongoProperties.Port整数属性