前端发送参数后端接收不到

后端QUERY 代码(省略不相干的参数， 只保留接收不到的参数)：

public class DataResourceTableInfo {
  ...
  protected String sTableName;
  ...
  public String getSTableName() {
        return sTableName;
  }

   public void setSTableName(String sTableName) {
     this.sTableName = sTableName;
  }
...
}

前端发送参数

 {
  ...
   sTableName : 'someValue'，
  ...
 }

这样子后端就收不到参数，也不报错
注：（set get 方法为我司自有框架生成）
跟踪springMVC代码，在

package org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter
...
import com.fasterxml.jackson.databind.ObjectMapper;
...
public abstract class AbstractJackson2HttpMessageConverter extends AbstractGenericHttpMessageConverter<Object> {
...
    protected ObjectMapper objectMapper;
...
    private Object readJavaType(JavaType javaType, HttpInputMessage inputMessage) {
        try {
            if (inputMessage instanceof MappingJacksonInputMessage) {
                Class<?> deserializationView = ((MappingJacksonInputMessage) inputMessage).getDeserializationView();
                if (deserializationView != null) {
                    return this.objectMapper.readerWithView(deserializationView).forType(javaType).
                            readValue(inputMessage.getBody());
                }
            }
            // 在这进行string json 转javaObj 操作，（其实是byte数组）
            return this.objectMapper.readValue(inputMessage.getBody(), javaType);
        }
        catch (JsonProcessingException ex) {
            throw new HttpMessageNotReadableException("JSON parse error: " + ex.getOriginalMessage(), ex);
        }
        catch (IOException ex) {
            throw new HttpMessageNotReadableException("I/O error while reading input message", ex);
        }
    }
...
}

这个json转换工具识别的set get 方法的规则和我司框架生成的不一致 因此在子类增加get set方法

 public String getsTableName() {
     return sTableName;
 }

 public void setsTableName(String sTableName) {
      super.setSTableName(sTableName);
 }