如何使用GSON+java在json字符串中插入转义符，即“\n”[duplicate]

Question

我正在使用SpringBoot和Java使用第三方API，他们的要求是以以下格式发送JSON。

"{\n" + 
            "  \"scheduleAt\": \"2020-01-16T09:45:29.361Z\",\n" + 
            "  \"serviceType\": \"TRUCK\",\n" + 
            "  \"stops\": [\n" + 
            "    {\n" + 
            "      \"location\": {\n" + 
            "        \"lat\": \"109.063753\",\n" + 
            "        \"lng\": \"312.998866\"\n" + 
            "      },\n" + 
            "      \"addresses\": {\n" + 
            "        \"en_IN\": {\n" + 
            "          \"displayString\": \"Please bring the BAG\",\n" + 
            "          \"country\": \"IN\"\n" + 
            "        }\n" + 
            "      }\n" + 
            "    }\n" + 
            "  ]\n" + 
            " }";

{
  "scheduleAt": "2020-01-16T09:45:29.361Z",
  "serviceType": "TRUCK",
  "stops": [
    {
      "location": {
        "lat": "109.063753",
        "lng": "312.998866"
      },
      "addresses": {
        "en_IN": {
          "displayString": "Please bring the BAG",
          "country": "TH"
        }
      }
    }
  ]
 }

{\n \"scheduleAt\": \"2018-12-31T14:30:00.00Z\",\n \"serviceType\": \"MOTORCYCLE\",\n \"requesterContact\": { \"name\": \"Peter Pan\", \"phone\": \"232\" },\n \"stops\": [\n {\n \"location\": { \"lat\": \"-6.255431000000001\", \"lng\": \"106.60114290000001\" },\n \"addresses\": {\n \"en_ID\": {\n \"displayString\":\n \"Jl. Perum Dasana Indah No.SD 3/ 17-18, RT.3/RW.1, Bojong Nangka, Klp. Dua, Tangerang, Banten 15810, Indonesia\",\n \"country\": \"ID\"\n }\n }\n },\n {\n \"location\": { \"lat\": \"-6.404722800000001\", \"lng\": \"106.81902130000003\" },\n \"addresses\": {\n \"en_ID\": {\n \"displayString\": \"Jl. Kartini, Ruko No. 1E, Depok, Pancoran MAS, Kota Depok, Jawa Barat 16431, Indonesia\",\n \"country\": \"ID\"\n }\n }\n }\n ],\n \"deliveries\": [\n {\n \"toStop\": 1,\n \"toContact\": {\n \"name\": \"mm\",\n \"phone\": \"9999999\"\n }\n }\n ]\n}\n'

但实际上我通过GSON得到的是以下内容：（当前）

{
  "scheduleAt": "2020-01-16T09:45:29.361Z",
  "serviceType": "TRUCK",
  "stops": [
    {
      "location": {
        "lat": "109.063753",
        "lng": "312.998866"
      },
      "addresses": {
        "en_IN": {
          "displayString": "Please bring the BAG",
          "country": "TH"
        }
      }
    }
  ]
 }

Answer 1

我能够直接处理引用的文本，而不需要任何附加设置或更改：

import com.google.gson.Gson;

public class GSONTest {

    public String value;

    public static void main(String[] args) {
        Gson g = new Gson();
        GSONTest gt = new GSONTest();
        gt.value = "Test using \"quoted\" strings.";
        System.out.println("String: " + gt.value);
        System.out.println("JSON: " + g.toJson(gt));
    }
}

输出：

String: Test using "quoted" strings.
JSON: {"value":"Test using \"quoted\" strings."}