Spring Boot Webflow-Set UTF-8编码 [英] Spring Boot Webflux - Set UTF-8 Encoding
本文介绍了Spring Boot Webflow-Set UTF-8编码的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我一直在使用Spring Boot 2.0.0.RC1
并使用spring-boot-starter-webflux
来构建返回大量文本数据的REST控制器。
@GetMapping(value = "/")
public Flux<String> getData(){
return Flux.interval(Duration.ofSeconds(2))
.map(l -> "Some text with umlauts (e.g. ä, ö, ü)...");
}
由于文本数据包含一些元音(例如ä,ö,ü),我希望将响应的Content-Type标头从text/event-stream
更改为text/event-stream;charset=UTF-8
。因此,我尝试了包装成ResponseEntity
。如下所示:
@GetMapping(value = "/")
public ResponseEntity<Flux<String>> getData(){
return ResponseEntity
.ok()
.contentType(MediaType.parseMediaType("text/event-stream;charset=UTF-8"))
.body(Flux.interval(Duration.ofSeconds(2))
.map(l -> "Some text with umlauts (e.g. ä, ö, ü)..."));
}
现在,向端点发出cURL请求会显示Content-Type保持不变:
< HTTP/1.1 200 OK
< transfer-encoding: chunked
< Content-Type: text/event-stream
<
data:Some text with umlauts (e.g. ├ñ, ├Â, ├╝)...
我怀疑MediaType.parseMediaType()
方法有问题,但媒体类型解析正确(如此截图所示):
然而,参数charset
似乎被忽略。如何将编码更改为UTF-8,以便浏览器正确解释元音字符?
编辑:GetMapping
批注中的produces
字段设置也不起作用。
@GetMapping(value = "/", produces = "text/event-stream;charset=UTF-8")
public ResponseEntity<Flux<String>> getData(){
return ResponseEntity
.accepted()
.contentType(MediaType.parseMediaType("text/event-stream;charset=UTF-8"))
.body(Flux.interval(Duration.ofSeconds(2))
.map(l -> "Some text with umlauts (e.g. ä, ö, ü)..."));
}
推荐答案
您可以在返回到浏览器之前创建筛选器和处理响应
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.core.Ordered;
// esse filtro foi criado pra converter para UTF-8 o response do Flux<ServerSentEvent<String>>
// this filter was created to convert all responses to UTF8, including Flux<ServerSentEvent<String>>
@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class FluxPreProcessorFilter implements Filter {
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
response.setCharacterEncoding("UTF-8");
chain.doFilter(request, response);
}
}
这篇关于Spring Boot Webflow-Set UTF-8编码的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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