fix: make JsonUtils.objectMapper the default mapper for de/serialization

Author: ludomikula

server/api-service/lowcoder-server/src/main/java/org/lowcoder/api/framework/configuration/CustomWebFluxConfigurationSupport.java

@@ -1,16 +1,33 @@
 package org.lowcoder.api.framework.configuration;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.RequiredArgsConstructor;
 import org.lowcoder.api.framework.plugin.endpoint.ReloadableRouterFunctionMapping;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.codec.ServerCodecConfigurer;
+import org.springframework.http.codec.json.Jackson2JsonDecoder;
+import org.springframework.http.codec.json.Jackson2JsonEncoder;
 import org.springframework.web.reactive.config.WebFluxConfigurationSupport;
 import org.springframework.web.reactive.function.server.support.RouterFunctionMapping;
 
+@RequiredArgsConstructor
 @Configuration
 public class CustomWebFluxConfigurationSupport extends WebFluxConfigurationSupport
 {
+	private final ObjectMapper objectMapper;
+
 	@Override
 	protected RouterFunctionMapping createRouterFunctionMapping() 
 	{
 		return new ReloadableRouterFunctionMapping();
 	}
+
+
+	@Override
+	protected void configureHttpMessageCodecs(ServerCodecConfigurer configurer) {
+		configurer.defaultCodecs()
+				.jackson2JsonDecoder(new Jackson2JsonDecoder(objectMapper));
+		configurer.defaultCodecs()
+				.jackson2JsonEncoder(new Jackson2JsonEncoder(objectMapper));
+	}
 }