Question

我尝试过：

options.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver()

但是网络核心3初创公司不支持此分配

Answer 1

.Net核心现在使用System.Text.Json，但您仍然可以使用Newtonsoft。在您的startup.cs文件中，在ConfigureServices方法中添加以下内容。

library(data.table)
packageVersion('data.table')
#[1] ‘1.12.8’

#the empty table to be filled
DT <- data.table(
  "ID" = c("a", "b", "c", "d"),
  "A" = numeric(4),
  "B" = numeric(4),
  "C" = numeric(4)
)
#   ID A B C
#1:  a 0 0 0
#2:  b 0 0 0
#3:  c 0 0 0
#4:  d 0 0 0

#table with part of the results
DT_short <- data.table(
  "ID" = c("a", "b", "d"),
  "A" = 1:3,
  "B" = 1:3
)
#   ID A B
#1:  a 1 1
#2:  b 2 2
#3:  d 3 3

#table with part of the results 2
DT_shorter <- data.table(
  "ID" = c("c"),
  "A" = 7,
  "B" = 70,
  "C" = 3.14
)
#   ID A  B    C
#1:  c 7 70 3.14


DT[match(DT_short$ID, DT$ID), match(names(DT_short), names(DT))] <- DT_short
DT[match(DT_shorter$ID, DT$ID), match(names(DT_shorter), names(DT))] <- DT_shorter
DT
#   ID A  B    C
#1:  a 1  1 0.00
#2:  b 2  2 0.00
#3:  c 7 70 3.14
#4:  d 3  3 0.00

应该这样做

我无法在Net Core 3 Startap中使用ContractResolver

1 个答案: