还原配置

epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/security/config/WebMvcConfig.java

@@ -81,41 +81,6 @@ public class WebMvcConfig implements WebMvcConfigurer {
         simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
         mapper.registerModule(simpleModule);
 
-        mapper.getSerializerProvider().setNullValueSerializer(new JsonSerializer<Object>() {
-            @Override
-            public void serialize(Object value, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
-
-                String fieldName = jsonGenerator.getOutputContext().getCurrentName();
-                Field field = null;
-                try {
-                    //反射获取字段类型
-                    field = jsonGenerator.getCurrentValue().getClass().getDeclaredField(fieldName);
-                } catch (NoSuchFieldException e) {
-                    e.printStackTrace();
-                }
-
-                if (null != field) {
-                    if (Objects.equals(field.getType(), String.class)) {
-                        // 字符串型空值""
-                        jsonGenerator.writeString(StringUtils.EMPTY);
-                        return;
-                    } else if (Objects.equals(field.getType(), List.class)) {
-                        // 列表型空值返回[]
-                        jsonGenerator.writeStartArray();
-                        jsonGenerator.writeEndArray();
-                        return;
-                    } else if (Objects.equals(field.getType(), Map.class)) {
-                        // map型空值返回{}
-                        jsonGenerator.writeStartObject();
-                        jsonGenerator.writeEndObject();
-                        return;
-                    }
-                }
-
-                // 默认返回""
-                jsonGenerator.writeString(StringUtils.EMPTY);
-            }
-        });
         converter.setObjectMapper(mapper);
         return converter;
     }