Spring Boot Mvc实现国际化面临的问题

Question

在访问网址时，我得到以下异常。

org.springframework.web.util.NestedServletExc0019：请求处理失败；嵌套异常是java.lang.不支持操作异常：不能更改HTTP接受标头-使用不同的区域设置解析策略org.springframework.web.servlet.FrameworkServlet.process请求（FrameworkServlet.java:1014）org.springframework.web.servlet.FrameworkServlet.do获取（FrameworkServlet.java:898）javax.servlet.http.HttpServlet.service（HttpServlet.java:626）org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:883）javax.servlet.http.HttpServlet.service（HttpServlet.java:733）org.apache.tomcat.websocket.server.WsFilter.do过滤器（WsFilter.java:53）org. springframework. web. filter.@no___________________________________________________________________________________________________________________. doFilter（OncePerrecestFilter. java： 119）org. springframework. web. filter.OncePer刚需过滤器. doFilter（OncePer刚需过滤器. java： 103）org. springframework. web. filter.OncePer刚需过滤器. doFilter（OncePer刚需过滤器. java： 103）org. springframework. boot. web. servlet. support.错误PageFilter.转发ToErrorPage（ErrorPageFilter. java： 193）org. springframework. boot. web. servlet. support.错误PageFilter. handleExc0019（ErrorPageFilter. java： 178）org. springframework. boot. web. servlet. support.错误PageFilter. doFilter（错误PageFilter. java： 145）org. springframework. boot. web. servlet. support.访问0美元（错误PageFilter. java： 66）org. springframework. boot. web. servlet. support.错误PageFilter1美元。OncePer刚需过滤器. doFilter（OncePer刚需过滤器. java： 119）org. springframework. boot. web. servlet. support.错误PageFilter. doFilter（错误PageFilter. java： 121）org. springframework. web. filter.Filter. doFilter内部（特征EncodingFilter. java： 201）org. springframework. web. filter.根原因

JAVAlang.UnsupportedOperationException:无法更改HTTP accept标头-请使用其他区域设置解析策略。springframework。网状物servlet。i18n。AcceptHeaderLocaleResolver。setLocale（AcceptHeaderLocaleResolver.java:142）org。springframework。网状物servlet。i18n。LocaleChangeInterceptor。preHandle（localechangereceptor.java:154）org。springframework。网状物servlet。HandlerExecutionChain。applyPreHandle（HandlerExecutionChain.java:141）org。springframework。网状物servlet。调度员服务。doDispatch（DispatcherServlet.java:1035）org。springframework。网状物servlet。调度员服务。doService（DispatcherServlet.java:943）org。springframework。网状物servlet。FrameworkServlet。processRequest（FrameworkServlet.java:1006）org。springframework。网状物servlet。FrameworkServlet。doGet（FrameworkServlet.java:898）javax。servlet。http。HttpServlet。服务（HttpServlet.java:626）org。springframework。网状物servlet。FrameworkServlet。服务（FrameworkServlet.java:883）javax。servlet。http。HttpServlet。服务（HttpServlet.java:733）组织。阿帕奇。公猫websocket。服务器WsFilter。doFilter（WsFilter.java:53）org。springframework。网状物滤器RequestContextFilter。doFilterInternal（RequestContextFilter.java:100）org。springframework。网状物滤器OncePerRequestFilter。doFilter（OncePerRequestFilter.java:119）org。springframework。网状物滤器OncePerRequestFilter。doFilter（OncePerRequestFilter.java:103）org。springframework。网状物滤器OncePerRequestFilter。doFilter（OncePerRequestFilter.java:103）org。springframework。靴子网状物servlet。支持错误页面过滤器。forwardToErrorPage（ErrorPageFilter.java:193）org。springframework。靴子网状物servlet。支持错误页面过滤器。handleException（ErrorPageFilter.java:178）org。springframework。靴子网状物servlet。支持错误页面过滤器。doFilter（ErrorPageFilter.java:145）org。springframework。靴子网状物servlet。支持错误页面过滤器。访问$000（ErrorPageFilter.java:66）org。springframework。靴子网状物servlet。支持ErrorPageFilter 1美元。doFilterInternal（ErrorPageFilter.java:103）org。springframework。网状物滤器OncePerRequestFilter。doFilter（OncePerRequestFilter.java:119）org。springframework。靴子网状物servlet。支持错误页面过滤器。doFilter（ErrorPageFilter.java:121）org。springframework。网状物滤器字符编码过滤器。doFilterInternal（CharacterEncodingFilter.java:201）org。springframework。网状物滤器OncePerRequestFilter。doFilter（OncePerRequestFilter.java:119）
我的配置类如下所示：

package com.spring.mvc.messenger.config;

import java.util.Locale;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
import org.springframework.web.servlet.i18n.SessionLocaleResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
public class MessengerConfig implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/files/**").addResourceLocations("/WEB-INF/pdf/");
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(getLocaleChangeInterceptor());
    }

    @Bean
    public LocaleChangeInterceptor getLocaleChangeInterceptor() {
        LocaleChangeInterceptor localChangeInterceptor = new LocaleChangeInterceptor();
        localChangeInterceptor.setParamName("lang");
        return localChangeInterceptor;
    }

    @Bean
    public ViewResolver getViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/jsp/");
        resolver.setSuffix(".jsp");
        resolver.setOrder(0);
        return resolver;
    }

    @Bean
    public LocaleResolver getLocaleResolver() {
        SessionLocaleResolver localeResolver = new SessionLocaleResolver();
        localeResolver.setDefaultLocale(new Locale("en", "US"));
        return localeResolver;
    }

}

我的message.properties文件有以下细节：

#labels
name=Name

#button
save.changes=Save Changes

我的message_es.properties文件有以下细节：

#labels
name=Nombre   

#button
save.changes=Guardar cambios

我的Jsp文件是

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>

<!DOCTYPE html>

<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    <h1>Welcome Home Jsp</h1>
    <spring:message code="name" />
</body>
</html>

我的控制器类

package com.spring.mvc.messenger.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/")
public class MessengerController {

    @GetMapping
    public ModelAndView getHomePage(Model model) {
        return new ModelAndView("WelcomeHome");
    }

    @GetMapping(value = "/home")
    public ModelAndView homePage(Model model) {
        return new ModelAndView("WelcomeHome");
    }

}

我的应用程序类是

package com.spring.mvc.messenger;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

@SpringBootApplication
public class MessengerApplication extends SpringBootServletInitializer {

    public static void main(String[] args) {
        SpringApplication.run(MessengerApplication.class, args);
    }

}

有人能帮我解决这个问题吗...我尝试使用不同的语言环境。但类似的反应仍然得到了

Answer 1

有时错误可能是因为没有添加注释“@EnableWebMvc”