SpringBoot几种中文乱码解决办法

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@RequestMapping(value = "/upload")
public String upload(@RequestParam("file1") MultipartFile file) {
if (file.isEmpty()) {
return "文件为空";
}
// 获取文件名
String fileName = file.getOriginalFilename();
System.out.println("上传的文件名为：" + fileName);
// 获取文件的后缀名
String suffixName = fileName.substring(fileName.lastIndexOf("."));
System.out.println("上传的后缀名为：" + suffixName);
// 文件上传后的路径
String filePath = "D:/backgroundimagefroidea/";
// 解决中文问题，liunx下中文路径，图片显示问题
// fileName = UUID.randomUUID() + suffixName;
File dest = new File(filePath + fileName);
// 检测是否存在目录
if (!dest.getParentFile().exists()) {
dest.getParentFile().mkdirs();
}
try {
file.transferTo(dest);
return "上传成功";
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return "上传失败";
}

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@Configuration
@EnableWebMvc
public class CustomMvcConfiguration1 implements WebMvcConfigurer {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
registry.addResourceHandler("/file/**").addResourceLocations("file:///D:/backgroundimagefroidea/");
}
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOrigins("*")
.allowedMethods("GET", "POST", "PUT", "DELETE")
.allowCredentials(true)
.maxAge(3600)
.allowedHeaders("Authorization", "content-type", "x-requested-with")
.exposedHeaders("X-Sample");
/*
注意exposeHeaders为暴露header,前端可以通过ajax的方式获取response中暴露的header
success: function(data, textStatus, request){
console.log(data);
console.log(request.getResponseHeader("X-Sample"));
console.log(request.getResponseHeader("content-type"));
},
*/
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
StringHttpMessageConverter converter = new StringHttpMessageConverter(
Charset.forName("UTF-8"));
converters.add(converter);
}
}

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@RequestMapping(value = "/getBook")
public Object getBook(HttpServletRequest request) {
Enumeration<String> headerNames = request.getHeaderNames();
while (headerNames.hasMoreElements()) {
String key = headerNames.nextElement();
System.out.println(key + ":" + request.getHeader(key));
}
Book b = new Book();
b.setId("1111");
b.setName("西游记");
b.setAuthor("罗贯中");
return b;
}

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@Configuration
@EnableWebMvc
public class CustomMvcConfiguration1 implements WebMvcConfigurer {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
registry.addResourceHandler("/file/**").addResourceLocations("file:///D:/backgroundimagefroidea/");
}
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOrigins("*")
.allowedMethods("GET", "POST", "PUT", "DELETE")
.allowCredentials(true)
.maxAge(3600)
.allowedHeaders("Authorization", "content-type", "x-requested-with")
.exposedHeaders("X-Sample");
/*
注意exposeHeaders为暴露header,前端可以通过ajax的方式获取response中暴露的header
success: function(data, textStatus, request){
console.log(data);
console.log(request.getResponseHeader("X-Sample"));
console.log(request.getResponseHeader("content-type"));
},
*/
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
StringHttpMessageConverter converter = new StringHttpMessageConverter(
Charset.forName("UTF-8"));
converters.add(converter);
//1.需要定义一个convert转换消息的对象;
FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
//2.添加fastJson的配置信息，比如：是否要格式化返回的json数据;
FastJsonConfig fastJsonConfig = new FastJsonConfig();
fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat,
SerializerFeature.WriteMapNullValue,
SerializerFeature.WriteNullStringAsEmpty,
SerializerFeature.DisableCircularReferenceDetect,
SerializerFeature.WriteNullListAsEmpty,
SerializerFeature.WriteDateUseDateFormat);
//3处理中文乱码问题
List<MediaType> fastMediaTypes = new ArrayList<>();
fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
//4.在convert中添加配置信息.
fastJsonHttpMessageConverter.setSupportedMediaTypes(fastMediaTypes);
fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);
//5.将convert添加到converters当中.
converters.add(fastJsonHttpMessageConverter);
}
}

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mvn spring-boot:run -Dspring-boot.run.jvmArguments="-Dserver.port=8081 -Dfile.encoding=UTF-8"