Spring Boot中具有内容类型application/x-www-form-urlencoded的请求的自定义反序列化程序

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpInputMessage;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
import org.springframework.util.MultiValueMap;

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.List;

public class CustomFormHttpMessageConverter implements HttpMessageConverter<MultiValueMap<String, String>> {

    private final AllEncompassingFormHttpMessageConverter delegate;

    public CustomFormHttpMessageConverter() {
        this.delegate = new AllEncompassingFormHttpMessageConverter();
    }

    @Override
    public boolean canRead(Class<?> clazz, MediaType mediaType) {
        return MultiValueMap.class.isAssignableFrom(clazz) && mediaType != null &&
                mediaType.includes(MediaType.APPLICATION_FORM_URLENCODED);
    }

    @Override
    public MultiValueMap<String, String> read(Class<? extends MultiValueMap<String, String>> clazz,
                                              HttpInputMessage inputMessage) throws IOException {
        return delegate.read(clazz, inputMessage);
    }

    @Override
    public boolean canWrite(Class<?> clazz, MediaType mediaType) {
        return delegate.canWrite(clazz, mediaType);
    }

    @Override
    public void write(MultiValueMap<String, String> map, MediaType contentType, HttpOutputMessage outputMessage)
            throws IOException {
        delegate.write(map, contentType, outputMessage);
    }

    @Override
    public List<MediaType> getSupportedMediaTypes() {
        return delegate.getSupportedMediaTypes();
    }

    @Override
    public MultiValueMap<String, String> read(Type type, Class<?> contextClass, HttpInputMessage inputMessage)
            throws IOException {
        return delegate.read(type, contextClass, inputMessage);
    }

    @Override
    public void write(MultiValueMap<String, String> map, Type type, MediaType contentType,
                      HttpOutputMessage outputMessage) throws IOException {
        delegate.write(map, type, contentType, outputMessage);
    }
}

import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        converters.add(new CustomFormHttpMessageConverter());
    }
}