springboot-base/src/main/java/cn/efunbox/base/configuration/WebApiConfig.java

package cn.efunbox.base.configuration;

import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Configuration
public class WebApiConfig extends WebMvcConfigurationSupport  {


   /* @Bean
    public MappingJackson2HttpMessageConverter customJackson2HttpMessageConverter() {
        MappingJackson2HttpMessageConverter jsonConverter = new MappingJackson2HttpMessageConverter();
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.configure(
                DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        objectMapper.getSerializerProvider().setNullValueSerializer(
                new JsonSerializer<Object>() {
                    @Override
                    public void serialize(Object value, JsonGenerator jgen,
                                          SerializerProvider provider) throws IOException,
                            JsonProcessingException {
                        jgen.writeString("");
                    }
                });
        // 进行HTML解码
        objectMapper.registerModule(new SimpleModule().addSerializer(
                String.class, new JsonSerializer<String>() {
                    @Override
                    public void serialize(String value, JsonGenerator jgen,
                                          SerializerProvider provider) throws IOException,
                            JsonProcessingException {
                        jgen.writeString(StringEscapeUtils.unescapeHtml4(value));
                    }
                }));
        jsonConverter.setObjectMapper(objectMapper);
        return jsonConverter;
    }*/

    @Override
    public void configureMessageConverters(
            List<HttpMessageConverter<?>> converters) {

        super.addDefaultHttpMessageConverters(converters);
    }

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("GET", "POST", "PUT", "OPTIONS", "DELETE", "PATCH")
                .allowCredentials(true).maxAge(3600);
    }

    /**
     * 配置servlet处理
     */
    @Override
    public void configureDefaultServletHandling(
            DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}