com.iiifi.kite.boot.web.servlet.config.KiteMessageConfiguration Maven / Gradle / Ivy

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Spring Cloud Core Component Extension.

There is a newer version: 1.2.4.RELEASE

package com.iiifi.kite.boot.web.servlet.config;

import java.util.List;
import lombok.AllArgsConstructor;
import java.nio.charset.StandardCharsets;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.iiifi.kite.boot.properties.KiteJacksonProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import com.iiifi.kite.common.jackson.MappingApiJackson2HttpMessageConverter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;

/**
 * 消息转换器
 * @author [email protected] 花朝
 * @date 2018/8/18 13:46
 */
@Configuration
@AllArgsConstructor
@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.SERVLET)
public class KiteMessageConfiguration implements WebMvcConfigurer {

	private final KiteJacksonProperties properties;
	private final ObjectMapper objectMapper;

	/**
	 * 消息转换，内置断点续传，下载和字符串
	 *
	 * @param converters 转换器
	 */
	@Override
	public void configureMessageConverters(List> converters) {
		converters.removeIf(x -> x instanceof StringHttpMessageConverter || x instanceof AbstractJackson2HttpMessageConverter);
		converters.add(new StringHttpMessageConverter(StandardCharsets.UTF_8));
		// 如果需要将 null 转为 空
		if (properties.getNullToEmpty()) {
			converters.add(new MappingApiJackson2HttpMessageConverter(objectMapper));
		} else {
			converters.add(new MappingJackson2HttpMessageConverter(objectMapper));
		}
	}
}