SpringBoot+FastJson 配置

package com.zit.config;

import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

import javax.annotation.Resource;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.context.request.RequestContextListener;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import com.zit.cac.interceptor.LoginInterceptor;

/**
* 
Title: WebMvcConfig
* 
Description: 与spring-mvc.xml对应
* @date   2019年4月14日
*/
@Configuration
@EnableWebMvc
public class WebMvcConfig implements WebMvcConfigurer {
	static Logger logger = LogManager.getLogger(WebMvcConfig.class);
    @Resource
    private MappingJackson2HttpMessageConverter converter;

    @Override
    public void configureViewResolvers(ViewResolverRegistry registry) {
        registry.jsp("/WEB-INF/view/", ".jsp");
    }

    @Override
    public void configureMessageConverters(List> converters) {
    	//1.定义一个convert转换消息对象--字符串解析器
        StringHttpMessageConverter converter  = new StringHttpMessageConverter(Charset.forName("UTF-8"));
        //2.将convert添加到converters中并设置优先级
        converters.add(0,converter);

        //1.定义一个convert转换消息对象--json解析器
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        //2.1添加fastjson的配置信息
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(
                SerializerFeature.WriteMapNullValue,
                SerializerFeature.WriteNullStringAsEmpty,
                SerializerFeature.WriteNullListAsEmpty,
                SerializerFeature.WriteDateUseDateFormat);
        //2.2处理中文乱码问题
        List fastMediaTypes = new ArrayList<>();
        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
        fastConverter.setSupportedMediaTypes(fastMediaTypes);
        //3.在convert中添加配置信息
        fastConverter.setFastJsonConfig(fastJsonConfig);
        //4.将convert添加到converters中并设置优先级
        converters.add(1,fastConverter);
    }

    @Bean
    public RequestContextListener requestContextListener(){
        return new RequestContextListener();
    }
    
    @Override
	public void addInterceptors(InterceptorRegistry registry) {
    	
    	registry.addInterceptor(new LoginInterceptor());
    	
    }

}