SpringBoot3.x学习

SpringBoot3.x支持了很多新的特性：native/JDK17/WebClient/RestClient/HTTP Interface等等。

总结一些问题：

RestClient乱码

final RestClient client = RestClient.builder().baseUrl("https://www.acgist.com")
    .messageConverters((list) -> {
        list.forEach(v -> {
            if(v instanceof StringHttpMessageConverter x) {
                x.setDefaultCharset(StandardCharsets.UTF_8);
            }
        });
    })
.build();

WebClient/RestClient/RestTemplate

@Bean
@ConditionalOnMissingBean
RestClient.Builder restClientBuilder(RestClientBuilderConfigurer restClientBuilderConfigurer) {
    final RestClient.Builder builder = RestClient.builder()
        .baseUrl("https://www.acgist.com")
        .requestFactory(ClientHttpRequestFactories.get(ClientHttpRequestFactorySettings.DEFAULTS));
    return restClientBuilderConfigurer.configure(builder);
}

@Bean
public HttpClient httpClient(RestClient.Builder builder) {
    final RestClient client = builder.build();
    final RestClientAdapter adapter = RestClientAdapter.create(client);
    final HttpServiceProxyFactory factory = HttpServiceProxyFactory.builderFor(adapter).build();
    return factory.createClient(HttpClient.class);
}

@Bean
public HttpClient httpClientWeb() {
    final WebClient client = WebClient.builder().baseUrl("https://www.acgist.com").build();
    final WebClientAdapter adapter = WebClientAdapter.create(client);
    final HttpServiceProxyFactory factory = HttpServiceProxyFactory.builderFor(adapter).build();
    return factory.createClient(HttpClient.class);
}

@Bean
public HttpClient httpClientRest() {
    final RestTemplate restTemplate = new RestTemplate();
    restTemplate.setUriTemplateHandler(new DefaultUriBuilderFactory("https://www.acgist.com"));
    restTemplate.getMessageConverters().forEach(v -> {
        if(v instanceof StringHttpMessageConverter x) {
            x.setDefaultCharset(StandardCharsets.UTF_8);
        }
    });
    final RestTemplateAdapter adapter = RestTemplateAdapter.create(restTemplate);
    final HttpServiceProxyFactory factory = HttpServiceProxyFactory.builderFor(adapter).build();
    return factory.createClient(HttpClient.class);
}