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().JSONobject

String 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