我需要从 JSON 对象中删除特定标签

Question

我有一个 JSON 对象如下

{

    "mandator":"GB0010001",

    "debitAccount":"81884",

    "creditAccount":"82918",

    "trustedBeneficiary":"false",

    "localCurrencyAmount":35,

    "transactionReference":"omega7.1.1",

    "debitAccountASPSP":"t24",

    "currencyAmount":35,

    "executionDate":"20180102",

    "creditAccountASPSP":"t24",

    "transactionType":"Contactless payment",

    "trustedPSP":"false",

    "jsonErrorResponse":{

        "errorCount":0,

        "errors":[

        ]

    },

    "currency":"USD",

    "company":"GB0010001"

}

我需要删除"jsonErrorResponse":{"errorCount":0,"errors":[]}，我用过JSONobject.remove("jsonErrorResponse").toString()

但它给了我输出{"errorCount":0,"errors":[]}而不是

{

    "mandator":"GB0010001",

    "debitAccount":"81884",

    "creditAccount":"82918",

    "trustedBeneficiary":"false",

    "localCurrencyAmount":35,

    "transactionReference":"omega7.1.1",

    "debitAccountASPSP":"t24",

    "currencyAmount":35,

    "executionDate":"20180102",

    "creditAccountASPSP":"t24",

    "transactionType":"Contactless payment",

    "trustedPSP":"false",

    "currency":"USD",

    "company":"GB0010001"

}

Answer 1

JSONobject.remove("jsonErrorResponse")返回被移除的东西。您正在调用toString您刚刚“删除”的部分。简单地不要链接方法调用。JSONobject.remove("jsonErrorResponse"); String newJson = JSONobject.toString()

Answer 2

由于您正在处理，因此JSONobject您正在从该对象中删除内容。您需要调用toString().JSONobjectString str = "{\"mandator\":\"GB0010001\",\"debitAccount\":\"81884\",\"creditAccount\":\"82918\",\"trustedBeneficiary\":\"false\",\"localCurrencyAmount\":35,\"transactionReference\":\"omega7.1.1\",\"debitAccountASPSP\":\"t24\",\"currencyAmount\":35,\"executionDate\":\"20180102\",\"creditAccountASPSP\":\"t24\",\"transactionType\":\"Contactless payment\",\"trustedPSP\":\"false\",\"jsonErrorResponse\":{\"errorCount\":0,\"errors\":[]},\"currency\":\"USD\",\"company\":\"GB0010001\"}"JSONObject jsonObject = new JSONObject(str);jsonObject.remove("jsonErrorResponse");jsonObject.toString();

Answer 3

remove 方法很可能返回被删除的对象。您需要对从中删除的对象执行 toString