去除多余的null的key ，修正kafka的broker地址

src/main/java/com/gzzn/omms/msgexchangeapi/config/JacksonConfig.java

@@ -0,0 +1,23 @@
+package com.gzzn.omms.msgexchangeapi.config;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.annotation.JsonInclude;
+
+@Configuration
+public class JacksonConfig {
+
+	@Bean
+    @Primary
+    @ConditionalOnMissingBean(ObjectMapper.class)
+    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
+        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
+        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+        return objectMapper;
+    }
+}

src/main/java/com/gzzn/omms/msgexchangeapi/config/KafkaProducerConfig.java

@@ -27,6 +27,8 @@ public class KafkaProducerConfig {
     private int linger;
     @Value("${kafka.producer.buffer.memory}")
     private int bufferMemory;
+    @Value("${kafka.producer.max.request.size}")
+    private int maxRequestSzie;
 
 
     public Map<String, Object> producerConfigs() {
@@ -36,6 +38,7 @@ public class KafkaProducerConfig {
         props.put(ProducerConfig.BATCH_SIZE_CONFIG, batchSize);
         props.put(ProducerConfig.LINGER_MS_CONFIG, linger);
         props.put(ProducerConfig.BUFFER_MEMORY_CONFIG, bufferMemory);
+        props.put(ProducerConfig.MAX_REQUEST_SIZE_CONFIG,maxRequestSzie);
         props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
         props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
         return props;