springboot2.0controller中⽂问号或者乱码的解决办法
开发过程中中⽂⼀直是显⽰，根据⽹上的帖⼦修改配置⽂件后也没有效果。后来偶然间看到⼀篇⽂章，把fastjson改为默认序列化插件，加⼊后就没有问题了。
1package com.leenleda.ward.tv.admin.interceptor;
2
3import com.alibaba.fastjson.serializer.SerializerFeature;
4import com.alibaba.fig.FastJsonConfig;
5import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
6import com.leenleda.fig.LeenledaConfig;
7import org.springframework.beans.factory.annotation.Autowired;
8import t.annotation.Configuration;
9import org.springframework.http.MediaType;
10import org.verter.HttpMessageConverter;
11import org.verter.json.MappingJackson2HttpMessageConverter;
12import org.springframework.fig.annotation.EnableWebMvc;
13import org.springframework.fig.annotation.InterceptorRegistry;
14import org.springframework.fig.annotation.ResourceHandlerRegistry;
15import org.springframework.fig.annotation.WebMvcConfigurer;
springboot中文
16
17import javax.annotation.Resource;
18import java.util.ArrayList;
19import java.util.Arrays;
20import java.util.List;
21
22
23/**
24 * @Author: pengbenlei
25 * @Date: 2020/2/19 11:22
26 * @Description:
27*/
28@Configuration
29@EnableWebMvc
30public class CustomMVCConfiguration implements WebMvcConfigurer {
31
32    @Resource
33    LoginInterceptor loginInterceptor;
34
35    @Autowired
36    LeenledaConfig leenledaConfig;
37
38    @Override
39public void addInterceptors(InterceptorRegistry registry) {
40//登录
41        registry.addInterceptor(loginInterceptor).addPathPatterns("/admin/**").excludePathPatterns(Arrays.asList("/file/**"));
42    }
43
44/**
45    * 添加静态资源⽂件，外部可以直接访问地址
46    *
47    * @param registry
48*/
49    @Override
50public void addResourceHandlers(ResourceHandlerRegistry registry) {
51        String locationPath = "file:" + LeenledaUploadRoot() + "/leenleda/application/";
52        registry.addResourceHandler("/file/**")
53                .addResourceLocations(locationPath);
54    }
55
56    @Override
57public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
58
59for (int i = converters.size() - 1; i >= 0; i--) {
60if ((i) instanceof MappingJackson2HttpMessageConverter) {
61                ve(i);
62            }
63        }
64        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
65        FastJsonConfig config = new FastJsonConfig();
66        config.setSerializerFeatures(
67                SerializerFeature.WriteMapNullValue,        // 是否输出值为null的字段，默认为false
68                SerializerFeature.WriteNullListAsEmpty,    // 将Collection类型字段的字段空值输出为[]
69                SerializerFeature.WriteNullStringAsEmpty,  // 将字符串类型字段的空值输出为空字符串
70                SerializerFeature.WriteNullNumberAsZero,    // 将数值类型字段的空值输出为0
71                SerializerFeature.WriteDateUseDateFormat,
72                SerializerFeature.DisableCircularReferenceDetect    // 禁⽤循环引⽤
73        );
74        fastJsonHttpMessageConverter.setFastJsonConfig(config);
75// 添加⽀持的MediaTypes；不添加时默认为*/*，也就是默认⽀持全部
76// 但是MappingJackson2HttpMessageConverter⾥⾯⽀持的MediaTypes为application/json
77// 参考它的做法, fastjson也只添加application/json的MediaType
78        List<MediaType> fastMediaTypes = new ArrayList<>();
79        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
80        fastJsonHttpMessageConverter.setSupportedMediaTypes(fastMediaTypes);
81        converters.add(fastJsonHttpMessageConverter);
82    }
83
84 }
WebMvcConfigurer

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