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package cn.chnmuseum.party.conf;
import cn.chnmuseum.party.common.util.MyLocalDateSerializer;
import cn.chnmuseum.party.common.util.MyLocalDateTimeSerializer;
import com.alibaba.fastjson.PropertyNamingStrategy;
import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.ByteArrayHttpMessageConverter;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.nio.charset.StandardCharsets;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
/**
* MVC配置
*/
@Configuration
public class MvcConfiguration extends WebMvcConfigurationSupport {
/**
* 后置跨域支持【当出现跨域请求,此处会放在拦截器最后执行，CORS失效】
*
* @param registry
*/
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOriginPatterns("*")
.allowedHeaders("*")
.allowedMethods("*")
.allowCredentials(true)
.maxAge(3600);
}
/**
* 配置消息转换器
*
* @param converters
*/
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
//0.先移除jackson转换器,springBoot1.x可以不排除
converters.removeIf(converter -> converter instanceof MappingJackson2HttpMessageConverter);
//1.需要定义一个convert转换消息的对象;
FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter();
ByteArrayHttpMessageConverter byteArrayHttpMessageConverter = new ByteArrayHttpMessageConverter();
//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, // 结果格式化
SerializerFeature.WriteMapNullValue, // 输出空值字段
SerializerFeature.WriteNullStringAsEmpty, // String如果为null，输出为""，而不是null
SerializerFeature.DisableCircularReferenceDetect, // 消除对同一对象循环引用的问题
SerializerFeature.WriteNullListAsEmpty, // List集合如果为null，输出为[]，而不是null
// SerializerFeature.BrowserCompatible, // 将中文都会序列化为[\u0000]格式，字节数虽然会多一些，但是能兼容IE 6
SerializerFeature.WriteDateUseDateFormat); // 全局修改日期格式
// 设置编码
fastJsonConfig.setCharset(StandardCharsets.UTF_8);
fastJsonConfig.setDateFormat("yyyy-MM-dd");
// 设置数字转化问题
SerializeConfig serializeConfig = SerializeConfig.globalInstance;
// serializeConfig.put(BigInteger.class, ToStringSerializer.instance);
// serializeConfig.put(Long.class, ToStringSerializer.instance);
// serializeConfig.put(Long.TYPE, ToStringSerializer.instance);
serializeConfig.setPropertyNamingStrategy(PropertyNamingStrategy.CamelCase);
serializeConfig.put(LocalDateTime.class, new MyLocalDateTimeSerializer("yyyy-MM-dd HH:mm:ss"));
serializeConfig.put(LocalDate.class, new MyLocalDateSerializer("yyyy-MM-dd"));
fastJsonConfig.setSerializeConfig(serializeConfig);
//3.处理中文乱码问题
List<MediaType> fastMediaTypes = new ArrayList<>();
fastMediaTypes.add(MediaType.APPLICATION_JSON);
fastMediaTypes.add(MediaType.TEXT_PLAIN);
fastMediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);
fastMediaTypes.add(MediaType.TEXT_HTML);
fastMediaTypes.add(MediaType.MULTIPART_FORM_DATA);
//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(0, fastJsonHttpMessageConverter);
converters.add(0, stringHttpMessageConverter);
converters.add(0, byteArrayHttpMessageConverter);
}
/**
* 启用@EnableWebMvc后，properties文件中的静态路径失效，必须覆盖后重新制定
* 配置静态访问资源
*
* @param registry
*/
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
// swagger2配置
registry.addResourceHandler("/swagger-ui.html")
.addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/");
// 静态资源拦截
registry.addResourceHandler("/**")
.addResourceLocations("classpath:/META-INF/")
.addResourceLocations("classpath:/META-INF/resources/")
.addResourceLocations("classpath:/resources/")
.addResourceLocations("classpath:/static/")
.addResourceLocations("classpath:/public/")
.addResourceLocations("classpath:/statics/")
.addResourceLocations("classpath:/template/")
.addResourceLocations("classpath:/");
}
/**
* 添加自定义的拦截器
* @author fxbin
* @param registry
*/
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new MyInterceptor()).addPathPatterns("/**");
}
/**
* 拦截器
* @author fxbin
* @version v1.0
* @since 2018/11/7 1:25
*/
class MyInterceptor extends HandlerInterceptorAdapter {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("Interceptor preHandler method is running !");
return super.preHandle(request, response, handler);
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
System.out.println("Interceptor postHandler method is running !");
super.postHandle(request, response, handler, modelAndView);
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
System.out.println("Interceptor afterCompletion method is running !");
super.afterCompletion(request, response, handler, ex);
}
@Override
public void afterConcurrentHandlingStarted(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("Interceptor afterConcurrentHandlingStarted method is running !");
super.afterConcurrentHandlingStarted(request, response, handler);
}
}
}