package com.estate.expert.admin.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.ResourceHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import javax.annotation.Resource;
import java.util.List;

/**
 * 很奇怪，需要自定义一个WebMvcConfig，才能让Jackson2HttpMessageConverter生效
 * https://www.cnblogs.com/joeblackzqq/p/17716810.html
 */
@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

    @Resource
    private ObjectMapper objectMapper;

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        converters.removeIf(o -> o instanceof MappingJackson2HttpMessageConverter);
        converters.add(new MappingJackson2HttpMessageConverter(objectMapper));
        converters.add(new ResourceHttpMessageConverter());
    }
}