package com.terra.common.config;
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import com.alibaba.fastjson2.JSONReader;
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import com.alibaba.fastjson2.JSONWriter;
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import com.alibaba.fastjson2.support.config.FastJsonConfig;
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import com.alibaba.fastjson2.support.spring.http.converter.FastJsonHttpMessageConverter;
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import com.terra.common.interceptor.AuthInterceptor;
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import com.terra.common.service.CommonService;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.Ordered;
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import org.springframework.http.MediaType;
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import org.springframework.http.converter.HttpMessageConverter;
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import org.springframework.util.AntPathMatcher;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import org.springframework.web.servlet.config.annotation.*;
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import javax.annotation.Resource;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.util.Collections;
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import java.util.List;
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/**
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* WebConfig：通过实现该接口并重写方法来扩展Spring MVC配置，不会覆盖默认配置。
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*/
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@Configuration
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public class WebConfig implements WebMvcConfigurer {
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@Resource
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CommonService commonService;
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@Override
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public void addViewControllers(ViewControllerRegistry registry) {
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// 设置访问路径为 “/” 跳转到指定页面
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registry.addViewController("/").setViewName("redirect:/sign/toIndex");
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// 设置为最高优先级
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registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
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}
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/**
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* 获取拦截器对象
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*/
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public AuthInterceptor getAuthBean() {
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return new AuthInterceptor(commonService);
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}
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/**
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* swagger控制
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*/
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@Override
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public void addResourceHandlers(ResourceHandlerRegistry registry) {
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registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
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//registry.addResourceHandler("swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
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registry.addResourceHandler("/swagger-ui/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
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registry.addResourceHandler("/druid/**").addResourceLocations("classpath:/META-INF/resources/druid/");
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registry.addResourceHandler("/**").addResourceLocations("classpath:/static/");
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}
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/**
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* 忽略url地址大小写
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*/
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@Override
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public void configurePathMatch(PathMatchConfigurer configurer) {
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AntPathMatcher matcher = new AntPathMatcher();
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matcher.setCaseSensitive(false);
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configurer.setPathMatcher(matcher);
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}
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@Override
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public void addInterceptors(InterceptorRegistry registry) {
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registry.addInterceptor(getAuthBean())
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//.excludePathPatterns("/v3/api-docs")
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.addPathPatterns("/**");
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}
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/**
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* 处理json格式，值null的转换为""
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*/
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@Override
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public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
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//FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
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FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter() {
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@Override
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protected void writeInternal(Object object, org.springframework.http.HttpOutputMessage outputMessage)
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throws IOException, org.springframework.http.converter.HttpMessageNotWritableException {
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ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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if (attributes != null) {
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String requestURI = attributes.getRequest().getRequestURI();
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if ("/v3/api-docs".equals(requestURI)) { // 排除 /v3/api-docs 路径
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// 使用默认的 JSON 序列化（如 Jackson），这里需要手动处理，不能直接调用 super.writeInternal
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outputMessage.getBody().write(String.valueOf(object).getBytes());
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return;
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}
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}
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super.writeInternal(object, outputMessage); // 其他路径使用 Fastjson2 处理
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}
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};
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converter.setFastJsonConfig(getFastJsonConfig());
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converter.setDefaultCharset(StandardCharsets.UTF_8);
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converter.setSupportedMediaTypes(Collections.singletonList(
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MediaType.APPLICATION_JSON
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));
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converters.add(0, converter);
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}
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private static FastJsonConfig getFastJsonConfig() {
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FastJsonConfig config = new FastJsonConfig();
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// 配置序列化特征
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config.setWriterFeatures(
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JSONWriter.Feature.WriteNullListAsEmpty,
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//JSONWriter.Feature.WriteNullBooleanAsFalse,
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//JSONWriter.Feature.WriteNullNumberAsZero,
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//JSONWriter.Feature.PrettyFormat, // 格式化输出
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JSONWriter.Feature.WriteMapNullValue // 输出空字段
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);
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// 反序列化特性配置
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config.setReaderFeatures(
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JSONReader.Feature.FieldBased,
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JSONReader.Feature.SupportArrayToBean
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);
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return config;
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}
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}
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