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我Jackson2ObjectMapperBuilder在我的主要 Spring Boot 应用程序类中进行了自定义，如下所示。

public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
}

@Autowired
public void configureJackson(Jackson2ObjectMapperBuilder builder) {
    builder.filters( new SimpleFilterProvider().addFilter( "customFilter", new ExampleFilter() ) );
}

ExampleFilter的扩展在哪里SimpleBeanPropertyFilter。我的 POJO 用 Ja​​ckson 的@JsonFilter("customFilter").
我已经使用@RestController和@GetMapping注释通过 HTTP 公开了 POJO。这可以正常工作，并且当我运行应用程序并访问端点时会调用自定义过滤器。

现在我有一个如下编写的集成测试。

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class IntegrationTest {

    @LocalServerPort
    private int port;

    @Autowired
    private TestRestTemplate restTemplate;

    @Test
    public void getUser() throws Exception {
        POJO obj = this.restTemplate.getForObject("http://localhost:" + this.port + "/pojo", POJO.class);

        Assertions.assertThat(obj).isNotNull();
        Assertions.assertThat(obj.getFirstName()).isEqualTo("Jane");
        Assertions.assertThat(obj.getLastName()).isEqualTo("Doe");
        Assertions.assertThat(obj.getAge()).isEqualTo("24");
    }
}

当我运行测试时，obj 为 null，我看到一个错误no FilterProvider configured

Failed to write HTTP message: org.springframework.http.converter.HttpMessageNotWritableException: Could not write content: Can not resolve PropertyFilter with id 'customFilter'; no FilterProvider configured; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not resolve PropertyFilter with id 'customFilter'; no FilterProvider configured

我做错了什么，我该如何纠正？

我的文件夹结构是：
src/main/java/com/a/b/c/Application.java
src/main/java/com/a/b/c/controller/ControllerA.java

src/test/java/com/a/b/c/controller/IntegrationTest.java

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2

我通过Jackson2ObjectMapperBuilder在主应用程序文件中以稍微不同的方式进行配置来完成这项工作，如下所示。但我仍然不知道为什么自动装配方法不起作用。

@Bean
public Jackson2ObjectMapperBuilder objectMapperBuilder() {
    Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
    builder.filters( new SimpleFilterProvider().addFilter( "customFilter", new ExampleFilter() ) );
    return builder;
}

我仍然想知道在测试上下文中，为什么在用作品Jackson2ObjectMapperBuilder替换它时没有选择自动配置进行自定义。@Bean

于 2017-04-21T16:17:57.160 回答