WebMvcConfig.java

package io.hmit.modules.security.config;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import io.hmit.common.utils.DateUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.ByteArrayHttpMessageConverter;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.ResourceHttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.text.SimpleDateFormat;
import java.util.List;
import java.util.TimeZone;

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

    @Value("${QR.download-path}")
    private String QRPath;

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/swagger2/**").addResourceLocations("classpath:/swagger2/");
        registry.addResourceHandler("/static/**").addResourceLocations("file:" + QRPath);
    }

    @Override
    public void addCorsMappings(CorsRegistry registry) {

        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowCredentials(true)
                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                .maxAge(3600);
    }

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {

        converters.add(new ByteArrayHttpMessageConverter());
        converters.add(new StringHttpMessageConverter());
        converters.add(new ResourceHttpMessageConverter());
        converters.add(new AllEncompassingFormHttpMessageConverter());
        converters.add(new StringHttpMessageConverter());
        converters.add(jackson2HttpMessageConverter());
    }

    @Bean
    public MappingJackson2HttpMessageConverter jackson2HttpMessageConverter() {

        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        ObjectMapper mapper = new ObjectMapper();

        //日期格式转换
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        mapper.setDateFormat(new SimpleDateFormat(DateUtils.DATE_TIME_PATTERN));
        mapper.setTimeZone(TimeZone.getTimeZone("GMT+8"));

        //Long类型转String类型
        SimpleModule simpleModule = new SimpleModule();
        simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
        simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
        mapper.registerModule(simpleModule);

        converter.setObjectMapper(mapper);
        return converter;
    }

}