Springboot 解决返回中文乱码问题

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package com.caib.commons.handlerInterceptor;

import org.springframework.context.annotation.Bean;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

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

/**
 * @Author 荡漾
 * @email [email protected]
 * @description: 配置拦截器
 * @create 2018-11-20 16:14
 */
@Component
public class MvcConfigurer extends WebMvcConfigurationSupport {
    //解决中文乱码问题
    @Bean
    public HttpMessageConverter<String> responseBodyConverter() {
        StringHttpMessageConverter converter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
        return converter;
    }

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
        converters.add(responseBodyConverter());
    }
    
    
    /**
     * 注册 拦截器
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new SecurityHandlerInterceptor())
                //添加过滤url ** 代表所有
                .addPathPatterns("/**")
                //添加排除过滤url 
				.excludePathPatterns(
				        "/swagger-resources/**"
                        , "/webjars/**"
                        , "/v2/**"
                        , "/swagger-ui.html/**"
                        ,"/register"
                        ,"/login"
                        ,"/**/error");
;
        super.addInterceptors(registry);
    }

    /**
     * 解决resources下面静态资源无法访问
     * @param registry
     */
   /* @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("swagger-ui.html")
                .addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**")
                .addResourceLocations("classpath:/META-INF/resources/webjars/");
        registry.addResourceHandler("classpath:/gen","classpath:application.yml","classpath:logback.xml");
        super.addResourceHandlers(registry);
    }*/

 /*   @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")//设置允许跨域的路径
                .allowedOrigins("*")//设置允许跨域请求的域名
                .allowCredentials(true)//是否允许证书 不再默认开启
                .allowedMethods("POST")//设置允许的方法"GET", "POST", "PUT", "DELETE"
                .maxAge(3600);//跨域允许时间
    }*/
}

 直接在你的拦截器里添加如下代码即可

//解决中文乱码问题
    @Bean
    public HttpMessageConverter<String> responseBodyConverter() {
        StringHttpMessageConverter converter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
        return converter;
    }

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
        converters.add(responseBodyConverter());
    }