我在執(zhí)行下面的代碼時(shí)遇到com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No value type configured for ObjectReader問題杰克遜版本是jackson-databind-2.9.9.jarpublic <T> T parsingData(String body) {  try {    return getObjectMapper().reader().readValue(body);  } catch (IOException ioe) {     ioe.printStackTrace();  }}在我進(jìn)入的確切異常下方printStackTrace，可以找到String body異常中公開的內(nèi)容。com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No value type configured for ObjectReaderat [Source: (String)"{     "timestamp": "2019-06-04T09:36:50.086+02:00",     "path": "/api/check/85358/checking/246syb-f3f2-4756-91da-dae3e8ce774b/test/22462da-c4e2-45ca-bd27-246/rows/8bc3965a-ae22-4d7f-b770-262sgs24/port",     "status": 400,     "error": "Internal Server Error",     "message": "[owner.firstName2:size:1:30, owner.lastName2:size:1:30]",     "errorCode": 200000    }    "; line: 1, column: 1]更新：您能解釋一下為什么我會(huì)收到此異常嗎？這是因?yàn)槲覜]有提供Class還是TypeReference？