如何使用fs.writeFile将文本存入JSON文件的属性键中

方法一：手动编辑JSON文件 #

如果只是单次操作，直接手动修改最快捷：

• 打开你的JSON文件（比如命名为data.json）
• 找到示例里的"userTest": ""这一行
• 把你提供的长文本直接粘贴到两个双引号之间（你的文本里没有双引号，不需要转义处理）
• 保存文件即可。最终的JSON结构如下：

{
    "userTest": "pozBpk8zf06uxvZmseZo-E99TgYOYH87FUZeCDyZmqnJOHb9u0ovW8gN1hYBFCc4MSw1Ne9FETFn112XWptkyV3stDIwaanLdP8SbrdrrPclWhWZKMeDb8DGzzM=oAwxro2UFmaWdCB0jexR5qgpszRWo7DstAFtTNyv4h5rFxIrSBBI8ukwkbxgk1C3w=WtvZ3EXYJwxEcbcyaEPtkfU0nO2ZyzbEtS7WtgSYPUUd6_=Pjea0bwSxEEY4sCoU5IEiqgKdziTE0StGkS7UD3PLJk9AasZiJJLECMh5f9ZNrGfEj-pTvcB=Vfx6jNUwD6g03gwJwn2KPR9M5gTnMF3UnKlevoEoKf6j=8Yt63CS498RHnu0Yf3jePokFZOYb6YJB=EEEJwE0Rfoab5LyvYvF9rJSJagw1whrPep966Zyzw0NOh4NG55Zo3A=2ZB0jYd5AcWgEvsUh=e4zG1GJZnNpF-6PW4_WVEoblmX4T17PPgkhPjcK919a46nOlTiz-Ol-2gGRYXbV3Z8vjuOHq=MWp-a0F0v3LnouPEWykv1oWcb0peBCJ=54Hlv2--DMp72vY-bYtF8BEuZLcyaGXpo_VhviCoZkB3GcZjerDw47by7=FJ8xsEkeL7z9c1YF79=TAP1uqkTOFIk59mq-L7nyn=tXhx9B3etxatgCBGzsHJVc52B0uq0BKJeUzB7IAex-HpE-GS31=zujnpwR75gu7sjKDmVBoi2RgGqMrBSPgyhCXcZVMFGcdt_riDcbGKF-hgITAGhdZacpZGfVdF-sSCX4HEV2C3PGypo1DZDgP3mTSsxhiCAlZzXE03pnEzVtYHqXzea0lO3kdqBbESHBH_HzcHin-j8KpsVAOqHLEuP1TAD1UOwfK3DfAPB5e8C0SVFLtzB=59BEgp-vvFpDKWYw9lXj9aB72Hg5PBBunlM1U-K1aKsJk-iyxMToh=EDK_ps7lyh36mLOeg_tbHi5vwrWiBvfmRSaibAC4bLjwMdNWVPh2LRido8L84vr7SNuwIB2fN22ZGw17tkj6KJTIBlqNK2d6Wk8_dEdPHAGholEdgPV0p7IEXdJseoK0q5sJNGhKECIxwIAlLp0JWmVgC1HPBWGDHljVWt3_nKYudJy6DHIHlew2huBtxy-xgEGwe8d=OwOXcez9nct0WjmY5Usqtid9JuFGp3nLtcW-Dpm6da6O=Cau2gt_bLo6A21=tod=HupF4bMgEPOAsG2YmAS7hS0=J-YMalGVVjdsS4_UVj6awBDgt1=TF5vGUZDjbZrDcb-v0ty3pqCOYTkGuEzUZRX6C2htE_5U3Fzu18Yk29XezGcsxbK=sd1XVK1sbK4HUZmPABAE4Em9GVM70SunOx8e=7doyu5KLnVibOwOyK=rOtbEpP=W6E=A9DDMB971_ABUy_LX2POg7Oufn7UU8R1PPDDgEBl=TNVxWIhFuLq_esXlaw3cBPXDpMFp_Cv1XVUvhFtmARcVZwFKfGOJT5o1TmefG4YOiO3Y9Hejdxsxxx8Hcrzxg0TkVy3E0lub4WU0b4gkw53BoeJOrqLemqHcwb06VfKi_Fq5a=T_RRtjfKROrGjHrRHn8RO74_mdFn_G3ScD5TeCcXxyZaEvbNBcawWSYN=_tdZBdzPGJPIGtM46yFTVR-VUS7ooONiVVjqvP7vffy-aeGuYrhPOSmfa3tw7ObwnYu6oU0bhKwjSlptpOw4F-6dvS4aUjJjp0qD6Xpjbw_oU7Vz0sH0r2h9iLEcNj-fTkyY6rHTtC4V-DXGukOpDw26AX-bHv5Kz0hpHZYh-6=DlOJG7jsIlAAILaBRp3x3IPdR2YGUjcA8bGjqWSuOyZ=PzxawCvvwj-ntBOa41kKtW6xlNevvLJCU_ArZNRxo--4PfT0b_YXazG0ReS3yXdKwxFgttuly"
}

方法二：用代码自动实现 #

如果需要批量或程序化操作，可以用脚本完成：

Python 实现 #

import json

# 你的目标文本
target_text = "pozBpk8zf06uxvZmseZo-E99TgYOYH87FUZeCDyZmqnJOHb9u0ovW8gN1hYBFCc4MSw1Ne9FETFn112XWptkyV3stDIwaanLdP8SbrdrrPclWhWZKMeDb8DGzzM=oAwxro2UFmaWdCB0jexR5qgpszRWo7DstAFtTNyv4h5rFxIrSBBI8ukwkbxgk1C3w=WtvZ3EXYJwxEcbcyaEPtkfU0nO2ZyzbEtS7WtgSYPUUd6_=Pjea0bwSxEEY4sCoU5IEiqgKdziTE0StGkS7UD3PLJk9AasZiJJLECMh5f9ZNrGfEj-pTvcB=Vfx6jNUwD6g03gwJwn2KPR9M5gTnMF3UnKlevoEoKf6j=8Yt63CS498RHnu0Yf3jePokFZOYb6YJB=EEEJwE0Rfoab5LyvYvF9rJSJagw1whrPep966Zyzw0NOh4NG55Zo3A=2ZB0jYd5AcWgEvsUh=e4zG1GJZnNpF-6PW4_WVEoblmX4T17PPgkhPjcK919a46nOlTiz-Ol-2gGRYXbV3Z8vjuOHq=MWp-a0F0v3LnouPEWykv1oWcb0peBCJ=54Hlv2--DMp72vY-bYtF8BEuZLcyaGXpo_VhviCoZkB3GcZjerDw47by7=FJ8xsEkeL7z9c1YF79=TAP1uqkTOFIk59mq-L7nyn=tXhx9B3etxatgCBGzsHJVc52B0uq0BKJeUzB7IAex-HpE-GS31=zujnpwR75gu7sjKDmVBoi2RgGqMrBSPgyhCXcZVMFGcdt_riDcbGKF-hgITAGhdZacpZGfVdF-sSCX4HEV2C3PGypo1DZDgP3mTSsxhiCAlZzXE03pnEzVtYHqXzea0lO3kdqBbESHBH_HzcHin-j8KpsVAOqHLEuP1TAD1UOwfK3DfAPB5e8C0SVFLtzB=59BEgp-vvFpDKWYw9lXj9aB72Hg5PBBunlM1U-K1aKsJk-iyxMToh=EDK_ps7lyh36mLOeg_tbHi5vwrWiBvfmRSaibAC4bLjwMdNWVPh2LRido8L84vr7SNuwIB2fN22ZGw17tkj6KJTIBlqNK2d6Wk8_dEdPHAGholEdgPV0p7IEXdJseoK0q5sJNGhKECIxwIAlLp0JWmVgC1HPBWGDHljVWt3_nKYudJy6DHIHlew2huBtxy-xgEGwe8d=OwOXcez9nct0WjmY5Usqtid9JuFGp3nLtcW-Dpm6da6O=Cau2gt_bLo6A21=tod=HupF4bMgEPOAsG2YmAS7hS0=J-YMalGVVjdsS4_UVj6awBDgt1=TF5vGUZDjbZrDcb-v0ty3pqCOYTkGuEzUZRX6C2htE_5U3Fzu18Yk29XezGcsxbK=sd1XVK1sbK4HUZmPABAE4Em9GVM70SunOx8e=7doyu5KLnVibOwOyK=rOtbEpP=W6E=A9DDMB971_ABUy_LX2POg7Oufn7UU8R1PPDDgEBl=TNVxWIhFuLq_esXlaw3cBPXDpMFp_Cv1XVUvhFtmARcVZwFKfGOJT5o1TmefG4YOiO3Y9Hejdxsxxx8Hcrzxg0TkVy3E0lub4WU0b4gkw53BoeJOrqLemqHcwb06VfKi_Fq5a=T_RRtjfKROrGjHrRHn8RO74_mdFn_G3ScD5TeCcXxyZaEvbNBcawWSYN=_tdZBdzPGJPIGtM46yFTVR-VUS7ooONiVVjqvP7vffy-aeGuYrhPOSmfa3tw7ObwnYu6oU0bhKwjSlptpOw4F-6dvS4aUjJjp0qD6Xpjbw_oU7Vz0sH0r2h9iLEcNj-fTkyY6rHTtC4V-DXGukOpDw26AX-bHv5Kz0hpHZYh-6=DlOJG7jsIlAAILaBRp3x3IPdR2YGUjcA8bGjqWSuOyZ=PzxawCvvwj-ntBOa41kKtW6xlNevvLJCU_ArZNRxo--4PfT0b_YXazG0ReS3yXdKwxFgttuly"

# 构建JSON数据结构
json_data = {
    "userTest": target_text
}

# 将数据写入JSON文件
with open("data.json", "w", encoding="utf-8") as f:
    json.dump(json_data, f, indent=4)

Node.js 实现 #

const fs = require('fs');

// 你的目标文本
const targetText = "pozBpk8zf06uxvZmseZo-E99TgYOYH87FUZeCDyZmqnJOHb9u0ovW8gN1hYBFCc4MSw1Ne9FETFn112XWptkyV3stDIwaanLdP8SbrdrrPclWhWZKMeDb8DGzzM=oAwxro2UFmaWdCB0jexR5qgpszRWo7DstAFtTNyv4h5rFxIrSBBI8ukwkbxgk1C3w=WtvZ3EXYJwxEcbcyaEPtkfU0nO2ZyzbEtS7WtgSYPUUd6_=Pjea0bwSxEEY4sCoU5IEiqgKdziTE0StGkS7UD3PLJk9AasZiJJLECMh5f9ZNrGfEj-pTvcB=Vfx6jNUwD6g03gwJwn2KPR9M5gTnMF3UnKlevoEoKf6j=8Yt63CS498RHnu0Yf3jePokFZOYb6YJB=EEEJwE0Rfoab5LyvYvF9rJSJagw1whrPep966Zyzw0NOh4NG55Zo3A=2ZB0jYd5AcWgEvsUh=e4zG1GJZnNpF-6PW4_WVEoblmX4T17PPgkhPjcK919a46nOlTiz-Ol-2gGRYXbV3Z8vjuOHq=MWp-a0F0v3LnouPEWykv1oWcb0peBCJ=54Hlv2--DMp72vY-bYtF8BEuZLcyaGXpo_VhviCoZkB3GcZjerDw47by7=FJ8xsEkeL7z9c1YF79=TAP1uqkTOFIk59mq-L7nyn=tXhx9B3etxatgCBGzsHJVc52B0uq0BKJeUzB7IAex-HpE-GS31=zujnpwR75gu7sjKDmVBoi2RgGqMrBSPgyhCXcZVMFGcdt_riDcbGKF-hgITAGhdZacpZGfVdF-sSCX4HEV2C3PGypo1DZDgP3mTSsxhiCAlZzXE03pnEzVtYHqXzea0lO3kdqBbESHBH_HzcHin-j8KpsVAOqHLEuP1TAD1UOwfK3DfAPB5e8C0SVFLtzB=59BEgp-vvFpDKWYw9lXj9aB72Hg5PBBunlM1U-K1aKsJk-iyxMToh=EDK_ps7lyh36mLOeg_tbHi5vwrWiBvfmRSaibAC4bLjwMdNWVPh2LRido8L84vr7SNuwIB2fN22ZGw17tkj6KJTIBlqNK2d6Wk8_dEdPHAGholEdgPV0p7IEXdJseoK0q5sJNGhKECIxwIAlLp0JWmVgC1HPBWGDHljVWt3_nKYudJy6DHIHlew2huBtxy-xgEGwe8d=OwOXcez9nct0WjmY5Usqtid9JuFGp3nLtcW-Dpm6da6O=Cau2gt_bLo6A21=tod=HupF4bMgEPOAsG2YmAS7hS0=J-YMalGVVjdsS4_UVj6awBDgt1=TF5vGUZDjbZrDcb-v0ty3pqCOYTkGuEzUZRX6C2htE_5U3Fzu18Yk29XezGcsxbK=sd1XVK1sbK4HUZmPABAE4Em9GVM70SunOx8e=7doyu5KLnVibOwOyK=rOtbEpP=W6E=A9DDMB971_ABUy_LX2POg7Oufn7UU8R1PPDDgEBl=TNVxWIhFuLq_esXlaw3cBPXDpMFp_Cv1XVUvhFtmARcVZwFKfGOJT5o1TmefG4YOiO3Y9Hejdxsxxx8Hcrzxg0TkVy3E0lub4WU0b4gkw53BoeJOrqLemqHcwb06VfKi_Fq5a=T_RRtjf