从所周知 spring boot 框架默认json解析为jackjson，若想使用第三方的json解析，该怎么办呢？

直接进入正题,在pom文件中加入如下配置。

          
     
      com.alibaba
           
     
      fastjson
           
     
      1.2.15
         
    

spring boot 启动类继承WebMvcConfigurerAdapter，然后重写configureMessageConverters此方法。

package com.demo;import com.alibaba.fastjson.serializer.SerializerFeature;import com.alibaba.fastjson.support.config.FastJsonConfig;import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.http.MediaType;import org.springframework.http.converter.HttpMessageConverter;import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;import java.util.ArrayList;import java.util.List;/** * Created by Administrator on 2017/3/19. */@SpringBootApplicationpublic class Application extends WebMvcConfigurerAdapter {    @Override    public void configureMessageConverters(List
    
     > converters) {        super.configureMessageConverters(converters);        /*         * 1. 需要先定义一个convert转换器对象         * 2. 配置添加fastjson的配置信息, 比如: 是否要格式化返回的json数据;         * 3. 把配置信息添加到convert转换器对象中;         * 4. 解决中文乱码         * 5. 将convert添加到转换器对象当中;         */        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();        FastJsonConfig fastJsonConfig = new FastJsonConfig();        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);        //4. 解决中文乱码问题        List
     
       fastMediaTypes = new ArrayList
      
       ();        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);        fastJsonHttpMessageConverter.setSupportedMediaTypes(fastMediaTypes);        converters.add(fastJsonHttpMessageConverter);    }    public static void main(String[] args) {        SpringApplication.run(Application.class,args);    }}