是否有可能使json4s不会抛出异常,当需要的领域缺失?是否有可能让json4s在必填字段丢失时不会抛出异常?
当从原料JSON字符串我“提取”的对象,它抛出这样一个
org.json4s.package$MappingException: No usable value for pager
No usable value for rpp
Did not find value which can be converted into byte
at org.json4s.reflect.package$.fail(package.scala:98)
at org.json4s.Extraction$ClassInstanceBuilder.org$json4s$Extraction$ClassInstanceBuilder$$buildCtorArg(Extraction.scala:388)
at org.json4s.Extraction$ClassInstanceBuilder$$anonfun$11.apply(Extraction.scala:396)
异常是否有可能只是让它为空?