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src/main/java/com/rock/geological/config/WebConfig.java

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+package com.rock.geological.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.filter.CorsFilter;
+
+@Configuration
+public class WebConfig {
+    private CorsConfiguration buildConfig() {
+        CorsConfiguration corsConfiguration = new CorsConfiguration();
+        // 1允许服务端访问
+        corsConfiguration.addAllowedOrigin("*");
+        // 1.1允许本地访问
+        corsConfiguration.addAllowedOrigin("http://localhost:4200");
+        // 2允许任何头
+        corsConfiguration.addAllowedHeader("*");
+        // 3允许任何方法（post、get等）
+        corsConfiguration.addAllowedMethod("*");
+        // 4 允许withCredentials报文头
+        corsConfiguration.setAllowCredentials(true);
+        return corsConfiguration;
+    }
+
+    @Bean
+    public CorsFilter corsFilter() {
+        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+        source.registerCorsConfiguration("/**", buildConfig());
+        return new CorsFilter(source);
+    }
+}