MyWebMvcConfig.java

package com.kwan.springbootkwan.config;

import org.springframework.boot.validation.MessageInterpolatorFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.format.FormatterRegistry;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.validation.MessageCodesResolver;
import org.springframework.validation.Validator;
import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.config.annotation.*;

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

/**
 * 全局webconfig-跨域配置
 *
 * @author : qinyingjie
 * @version : 2.2.0
 * @date : 2022/12/19 16:11
 */
@Configuration
public class MyWebMvcConfig extends WebMvcConfigurationSupport implements WebMvcConfigurer {

    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        // 解决controller返回字符串中文乱码问题
        for (HttpMessageConverter<?> converter : converters) {
            if (converter instanceof StringHttpMessageConverter) {
                ((StringHttpMessageConverter) converter).setDefaultCharset(StandardCharsets.UTF_8);
            } else if (converter instanceof MappingJackson2HttpMessageConverter) {
                ((MappingJackson2HttpMessageConverter) converter).setDefaultCharset(StandardCharsets.UTF_8);
            }
        }
    }

    @Override
    public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
        WebMvcConfigurer.super.configureHandlerExceptionResolvers(resolvers);
    }

    @Override
    public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
        WebMvcConfigurer.super.extendHandlerExceptionResolvers(resolvers);
    }

    @Override
    public Validator getValidator() {
        ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
        messageSource.setDefaultEncoding("utf-8");// 读取配置文件的编码格式
        messageSource.setCacheMillis(-1);// 缓存时间，-1表示不过期
        messageSource.setBasename("ValidationMessages");// 配置文件前缀名，设置为Messages,那你的配置文件必须以Messages.properties/Message_en.properties...

        LocalValidatorFactoryBean factoryBean = new LocalValidatorFactoryBean();
        MessageInterpolatorFactory interpolatorFactory = new MessageInterpolatorFactory();
        factoryBean.setMessageInterpolator(interpolatorFactory.getObject());
        factoryBean.setValidationMessageSource(messageSource);
        return factoryBean;
    }

    @Override
    public MessageCodesResolver getMessageCodesResolver() {
        return WebMvcConfigurer.super.getMessageCodesResolver();
    }

    /**
     * 配置静态资源
     *
     * @param registry
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/static/**")
                .addResourceLocations("classpath:/static/");
    }

    @Override
    public void configurePathMatch(PathMatchConfigurer configurer) {
        WebMvcConfigurer.super.configurePathMatch(configurer);
    }

    @Override
    public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
        WebMvcConfigurer.super.configureContentNegotiation(configurer);
    }

    @Override
    public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
        WebMvcConfigurer.super.configureAsyncSupport(configurer);
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        WebMvcConfigurer.super.configureDefaultServletHandling(configurer);
    }

    @Override
    public void addFormatters(FormatterRegistry registry) {
        WebMvcConfigurer.super.addFormatters(registry);
    }

    /**
     * 配置拦截器
     *
     * @param registry
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new MyInterceptor())
                .addPathPatterns("/**")
                .excludePathPatterns("/hello");
    }

    /**
     * 配置全局跨域
     *
     * @param registry
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/book/**")
                .allowedHeaders("*")
                .allowedMethods("*")
                .maxAge(1800)
                .allowedOrigins("http://localhost:8081");
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        WebMvcConfigurer.super.addViewControllers(registry);
    }

    @Override
    public void configureViewResolvers(ViewResolverRegistry registry) {
        WebMvcConfigurer.super.configureViewResolvers(registry);
    }

    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
        WebMvcConfigurer.super.addArgumentResolvers(resolvers);
    }

    @Override
    public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> handlers) {
        WebMvcConfigurer.super.addReturnValueHandlers(handlers);
    }

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