package org.jeecg.config;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.boot.actuate.trace.http.InMemoryHttpTraceRepository;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Conditional;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.http.converter.HttpMessageConverter;
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import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
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import org.springframework.web.cors.CorsConfiguration;
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import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
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import org.springframework.web.filter.CorsFilter;
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import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
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import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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import java.util.List;
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/**
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* Spring Boot 2.0 解决跨域问题
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*
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* @Author qinfeng
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*
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*/
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@Configuration
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public class WebMvcConfiguration implements WebMvcConfigurer {
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@Value("${jeecg.path.upload}")
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private String upLoadPath;
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@Value("${jeecg.path.webapp}")
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private String webAppPath;
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@Value("${spring.resource.static-locations}")
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private String staticLocations;
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/**
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* 静态资源的配置 - 使得可以从磁盘中读取 Html、图片、视频、音频等
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*/
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@Override
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public void addResourceHandlers(ResourceHandlerRegistry registry) {
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registry.addResourceHandler("/**")
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//update-begin-author:taoyan date:20211116 for: jeecg.path.webapp配置无效 #3126
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.addResourceLocations("file:" + upLoadPath + "//")
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.addResourceLocations("file:" + webAppPath + "//")
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//update-end-author:taoyan date:20211116 for: jeecg.path.webapp配置无效 #3126
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.addResourceLocations(staticLocations.split(","));
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}
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/**
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* 方案一： 默认访问根路径跳转 doc.html页面 （swagger文档页面）
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* 方案二： 访问根路径改成跳转 index.html页面 （简化部署方案： 可以把前端打包直接放到项目的 webapp，上面的配置）
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*/
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@Override
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public void addViewControllers(ViewControllerRegistry registry) {
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registry.addViewController("/").setViewName("doc.html");
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}
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@Bean
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@Conditional(CorsFilterCondition.class)
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public CorsFilter corsFilter() {
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final UrlBasedCorsConfigurationSource urlBasedCorsConfigurationSource = new UrlBasedCorsConfigurationSource();
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final CorsConfiguration corsConfiguration = new CorsConfiguration();
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//是否允许请求带有验证信息
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corsConfiguration.setAllowCredentials(true);
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// 允许访问的客户端域名
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corsConfiguration.addAllowedOrigin("*");
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// 允许服务端访问的客户端请求头
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corsConfiguration.addAllowedHeader("*");
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// 允许访问的方法名,GET POST等
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corsConfiguration.addAllowedMethod("*");
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urlBasedCorsConfigurationSource.registerCorsConfiguration("/**", corsConfiguration);
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return new CorsFilter(urlBasedCorsConfigurationSource);
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}
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/**
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* 添加Long转json精度丢失的配置
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* @Return: void
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*/
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@Override
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public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
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MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
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ObjectMapper objectMapper = new ObjectMapper();
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SimpleModule simpleModule = new SimpleModule();
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simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
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simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
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objectMapper.registerModule(simpleModule);
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jackson2HttpMessageConverter.setObjectMapper(objectMapper);
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converters.add(jackson2HttpMessageConverter);
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}
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/**
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* SpringBootAdmin的Httptrace不见了
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* https://blog.csdn.net/u013810234/article/details/110097201
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*/
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@Bean
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public InMemoryHttpTraceRepository getInMemoryHttpTrace(){
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return new InMemoryHttpTraceRepository();
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}
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}
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