org.springframework.beans.propertyeditors.StringTrimmerEditor#org.springframework.format.support.DefaultFormattingConversionService源码实例Demo

@Test
public void resolveOptional() {
	MethodParameter param = this.testMethod.annot(requestAttribute().name("foo")).arg(Optional.class, Foo.class);
	Mono<Object> mono = this.resolver.resolveArgument(param, new BindingContext(), this.exchange);

	assertNotNull(mono.block());
	assertEquals(Optional.class, mono.block().getClass());
	assertFalse(((Optional<?>) mono.block()).isPresent());

	ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
	initializer.setConversionService(new DefaultFormattingConversionService());
	BindingContext bindingContext = new BindingContext(initializer);

	Foo foo = new Foo();
	this.exchange.getAttributes().put("foo", foo);
	mono = this.resolver.resolveArgument(param, bindingContext, this.exchange);

	assertNotNull(mono.block());
	assertEquals(Optional.class, mono.block().getClass());
	Optional<?> optional = (Optional<?>) mono.block();
	assertTrue(optional.isPresent());
	assertSame(foo, optional.get());
}
 

@SuppressWarnings("unchecked")
@Test
public void resolveOptional() {
	MethodParameter param = initMethodParameter(3);
	Optional<Object> actual = (Optional<Object>) this.resolver
			.resolveArgument(param, new BindingContext(), this.exchange).block();

	assertNotNull(actual);
	assertFalse(actual.isPresent());

	ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
	initializer.setConversionService(new DefaultFormattingConversionService());
	BindingContext bindingContext = new BindingContext(initializer);

	Foo foo = new Foo();
	given(this.session.getAttribute("foo")).willReturn(foo);
	actual = (Optional<Object>) this.resolver.resolveArgument(param, bindingContext, this.exchange).block();

	assertNotNull(actual);
	assertTrue(actual.isPresent());
	assertSame(foo, actual.get());
}
 

@Before
@SuppressWarnings("resource")
public void setup() throws Exception {
	AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
	context.refresh();
	ReactiveAdapterRegistry adapterRegistry = ReactiveAdapterRegistry.getSharedInstance();
	this.resolver = new RequestHeaderMethodArgumentResolver(context.getBeanFactory(), adapterRegistry);

	ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
	initializer.setConversionService(new DefaultFormattingConversionService());
	this.bindingContext = new BindingContext(initializer);

	Method method = ReflectionUtils.findMethod(getClass(), "params", (Class<?>[]) null);
	this.paramNamedDefaultValueStringHeader = new SynthesizingMethodParameter(method, 0);
	this.paramNamedValueStringArray = new SynthesizingMethodParameter(method, 1);
	this.paramSystemProperty = new SynthesizingMethodParameter(method, 2);
	this.paramResolvedNameWithExpression = new SynthesizingMethodParameter(method, 3);
	this.paramResolvedNameWithPlaceholder = new SynthesizingMethodParameter(method, 4);
	this.paramNamedValueMap = new SynthesizingMethodParameter(method, 5);
	this.paramDate = new SynthesizingMethodParameter(method, 6);
	this.paramInstant = new SynthesizingMethodParameter(method, 7);
	this.paramMono = new SynthesizingMethodParameter(method, 8);
}
 

@SuppressWarnings("unchecked")
@Test
public void resolveOptional() {
	MethodParameter param = initMethodParameter(3);
	Optional<Object> actual = (Optional<Object>) this.resolver
			.resolveArgument(param, new BindingContext(), this.exchange).block();

	assertNotNull(actual);
	assertFalse(actual.isPresent());

	ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
	initializer.setConversionService(new DefaultFormattingConversionService());
	BindingContext bindingContext = new BindingContext(initializer);

	Foo foo = new Foo();
	when(this.session.getAttribute("foo")).thenReturn(foo);
	actual = (Optional<Object>) this.resolver.resolveArgument(param, bindingContext, this.exchange).block();

	assertNotNull(actual);
	assertTrue(actual.isPresent());
	assertSame(foo, actual.get());
}
 

@Bean
public OpenFeignSpringMvcContract feignSpringMvcContract(
    @Autowired(required = false) List<AnnotatedParameterProcessor> parameterProcessors,
    List<ConversionService> conversionServices) {
    if (conversionServices.size() == 0) {
        throw new IllegalStateException("ConversionService can not be NULL");
    }
    ConversionService conversionService = null;
    if (conversionServices.size() == 1) {
        conversionService = conversionServices.get(0);
    } else {
        // 如果有多个实例，优先使用找到的第一个DefaultFormattingConversionService，如果没有，则使用FormattingConversionService
        conversionService = conversionServices.stream().filter(c -> c instanceof DefaultFormattingConversionService)
            .findFirst().orElseGet(() -> conversionServices.stream()
                .filter(c -> c instanceof FormattingConversionService).findFirst().get());
    }
    if (null == parameterProcessors) {
        parameterProcessors = new ArrayList<>();
    }
    return new OpenFeignSpringMvcContract(parameterProcessors, conversionService);
}
 

@Test
public void testConversionWithInappropriateStringEditor() {
	DataBinder dataBinder = new DataBinder(null);
	DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
	dataBinder.setConversionService(conversionService);
	dataBinder.registerCustomEditor(String.class, new StringTrimmerEditor(true));

	NameBean bean = new NameBean("Fred");
	assertEquals("ConversionService should have invoked toString()", "Fred", dataBinder.convertIfNecessary(bean, String.class));
	conversionService.addConverter(new NameBeanConverter());
	assertEquals("Type converter should have been used", "[Fred]", dataBinder.convertIfNecessary(bean, String.class));
}
 

/**
 * Return a {@link FormattingConversionService} for use with annotated controllers.
 * <p>See {@link #addFormatters} as an alternative to overriding this method.
 */
@Bean
public FormattingConversionService webFluxConversionService() {
	FormattingConversionService service = new DefaultFormattingConversionService();
	addFormatters(service);
	return service;
}
 

@Test
public void createBinderWithGlobalInitialization() throws Exception {
	ConversionService conversionService = new DefaultFormattingConversionService();
	bindingInitializer.setConversionService(conversionService);

	MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/"));
	BindingContext context = createBindingContext("initBinder", WebDataBinder.class);
	WebDataBinder dataBinder = context.createDataBinder(exchange, null, null);

	assertSame(conversionService, dataBinder.getConversionService());
}
 

@Before
public void setup() throws Exception {

	ReactiveAdapterRegistry adapterRegistry = ReactiveAdapterRegistry.getSharedInstance();
	this.resolver = new RequestParamMethodArgumentResolver(null, adapterRegistry, true);

	ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
	initializer.setConversionService(new DefaultFormattingConversionService());
	this.bindContext = new BindingContext(initializer);
}
 

@Test
public void resolveArgumentWrappedAsOptional() {
	Map<String, String> uriTemplateVars = new HashMap<>();
	uriTemplateVars.put("name", "value");
	this.exchange.getAttributes().put(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE, uriTemplateVars);

	ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
	initializer.setConversionService(new DefaultFormattingConversionService());
	BindingContext bindingContext = new BindingContext(initializer);

	Mono<Object> mono = this.resolver.resolveArgument(this.paramOptional, bindingContext, this.exchange);
	Object result = mono.block();
	assertEquals(Optional.of("value"), result);
}
 

/**
 * Return a {@link FormattingConversionService} for use with annotated controllers.
 * <p>See {@link #addFormatters} as an alternative to overriding this method.
 */
@Bean
public FormattingConversionService mvcConversionService() {
	FormattingConversionService conversionService = new DefaultFormattingConversionService();
	addFormatters(conversionService);
	return conversionService;
}
 

@Before
public void setup() {
	this.conversionService = new DefaultFormattingConversionService();
	DataBinder dataBinder = new DataBinder(null);
	dataBinder.setConversionService(conversionService);

	this.redirectAttributes = new RedirectAttributesModelMap(dataBinder);
}
 

@InitBinder
public void initBinder(WebDataBinder binder) {
	binder.initDirectFieldAccess();
	binder.setConversionService(new DefaultFormattingConversionService());
	LocalValidatorFactoryBean vf = new LocalValidatorFactoryBean();
	vf.afterPropertiesSet();
	binder.setValidator(vf);
}
 

@Test
@SuppressWarnings("deprecation")
public void dateConversion() throws Exception {
	String rfc1123val = "Thu, 21 Apr 2016 17:11:08 +0100";
	servletRequest.addHeader("name", rfc1123val);

	ConfigurableWebBindingInitializer bindingInitializer = new ConfigurableWebBindingInitializer();
	bindingInitializer.setConversionService(new DefaultFormattingConversionService());
	Object result = resolver.resolveArgument(paramDate, null, webRequest,
			new DefaultDataBinderFactory(bindingInitializer));

	assertTrue(result instanceof Date);
	assertEquals(new Date(rfc1123val), result);
}
 

@Test
public void instantConversion() throws Exception {
	String rfc1123val = "Thu, 21 Apr 2016 17:11:08 +0100";
	servletRequest.addHeader("name", rfc1123val);

	ConfigurableWebBindingInitializer bindingInitializer = new ConfigurableWebBindingInitializer();
	bindingInitializer.setConversionService(new DefaultFormattingConversionService());
	Object result = resolver.resolveArgument(paramInstant, null, webRequest,
			new DefaultDataBinderFactory(bindingInitializer));

	assertTrue(result instanceof Instant);
	assertEquals(Instant.from(DateTimeFormatter.RFC_1123_DATE_TIME.parse(rfc1123val)), result);
}
 

@Test
public void createBinderWithGlobalInitialization() throws Exception {
	ConversionService conversionService = new DefaultFormattingConversionService();
	bindingInitializer.setConversionService(conversionService);

	WebDataBinderFactory factory = createFactory("initBinder", WebDataBinder.class);
	WebDataBinder dataBinder = factory.createBinder(this.webRequest, null, null);

	assertSame(conversionService, dataBinder.getConversionService());
}
 

/**
 * Create a {@link FormattingConversionService} which use ISO date format, instead of the localized one.
 * @return the {@link FormattingConversionService}.
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a {@link FormattingConversionService} which use ISO date format, instead of the localized one.
 * @return the {@link FormattingConversionService}.
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a {@link FormattingConversionService} which use ISO date format, instead of the localized one.
 * @return the {@link FormattingConversionService}.
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}
 

@Test
public void testConversionWithInappropriateStringEditor() {
	DataBinder dataBinder = new DataBinder(null);
	DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
	dataBinder.setConversionService(conversionService);
	dataBinder.registerCustomEditor(String.class, new StringTrimmerEditor(true));

	NameBean bean = new NameBean("Fred");
	assertEquals("ConversionService should have invoked toString()", "Fred", dataBinder.convertIfNecessary(bean, String.class));
	conversionService.addConverter(new NameBeanConverter());
	assertEquals("Type converter should have been used", "[Fred]", dataBinder.convertIfNecessary(bean, String.class));
}
 

/**
 * Return a {@link FormattingConversionService} for use with annotated controllers.
 * <p>See {@link #addFormatters} as an alternative to overriding this method.
 */
@Bean
public FormattingConversionService webFluxConversionService() {
	FormattingConversionService service = new DefaultFormattingConversionService();
	addFormatters(service);
	return service;
}
 

/**
 * Create a FormattingConversionService which use ISO date format, instead of the localized one.
 * @return the FormattingConversionService
 */
public static FormattingConversionService createFormattingConversionService() {
    DefaultFormattingConversionService dfcs = new DefaultFormattingConversionService ();
    DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
    registrar.setUseIsoFormat(true);
    registrar.registerFormatters(dfcs);
    return dfcs;
}