1、在pom.xml中引入fastJson依赖库
<!-- 添加fastjson 依赖包. -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.15</version>
</dependency>
2、配置fastJson
(1)方法一:启动类继承WebMvcConfigurerAdapter,然后覆盖方法configureMessageConverters
(2)方法二:在启动类中注入Bean: HttpMessageConverters
3、测试实践
4、处理中文乱码问题
FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
//解决中文乱码问题
List<MediaType> fastMediaTypes = new ArrayList<>();
fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
fastConverter.setSupportedMediaTypes(fastMediaTypes);