Question

我想将所有Json内容放在String变量中，格式如下。

String inputJSON = "{
\"billingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"},
\"shippingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"},
\"personAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"},
\"customerStatus\":\"\",
\"createdDate\":\""+((String)globalMap.get("Json.Date"))+"\"";

我是否知道为什么在完整的双引号中出现错误？我认为整个字符串是用双引号完成或覆盖的。我想把我的json放在这种格式中，请问我有什么遗漏或做错了吗？

Answer 1

您需要在每行的末尾添加String s = "abcdef"; String s = "abc"+"def"; String s = "abc"+ "def";，以便以有效的方式加入它们：

这三个是相同的：

String s =
    "{ "+
    "\"billingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"},"+
    "\"shippingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"},"+
    "\"personAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"},"+
    "\"customerStatus\":\"\","+
    "\"createdDate\":\""+((String)globalMap.get("Json.Date"))+"\"}";

所以对你来说：

此外，您最后错过了{ "billingAddress": { "city": "", "country": "", "postalCode": "", "state": "", "streetAddress": "" }, "shippingAddress": { "city": "", "country": "", "postalCode": "", "state": "", "streetAddress": "" }, "personAddress": { "city": "", "country": "", "postalCode": "", "state": "", "streetAddress": "" }, "customerStatus": "", "createdDate": "pop" }以获得有效的JSON字符串

如果你打印出上面的字符串，你会得到（一旦格式化）

private Entity e;

Answer 2

遗憾的是，Java不支持多行String声明。您需要使用+来连接行

String inputJSON = "{"
    + "\"billingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"}," 
    + "\"shippingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"}," 
    + "\"personAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"}," 
    + "\"customerStatus\":\"\",\"createdDate\":\""+((String)globalMap.get("Json.Date"))+"\"";

Answer 3

Java不支持多行字符串文字（尚未）。因此，每行必须是一个完整的字符串，用双引号括起来，每行需要使用＆＃39; +＆＃39;连接。

    final String inputJSON = "{" +
    "\"billingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"}," +
    "\"shippingAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"}," +
    "\"personAddress\":{\"city\":\"\",\"country\":\"\",\"postalCode\":\"\",\"state\":\"\",\"streetAddress\":\"\"}," +
    "\"customerStatus\":\"\"," +
    "\"createdDate\":\""+((String)globalMap.get("Json.Date"))+"\"";

也许更具可读性：

final String inputJSON =
    "{" +
    "    \"billingAddress\": {" +
    "        \"city\":\"\"," +
    "        \"country\":\"\"," +
    "        \"postalCode\":\"\"," +
    "        \"state\":\"\"," +
    "        \"streetAddress\":\"\"" +
    "    }," +
    "    \"shippingAddress\": {" +
    "        \"city\":\"\"," +
    "        \"country\":\"\"," +
    "        \"postalCode\":\"\"," +
    "        \"state\":\"\"," +
    "        \"streetAddress\":\"\"" +
    "    }," +
    "    \"personAddress\": {" +
    "        \"city\":\"\"," +
    "        \"country\":\"\"," +
    "        \"postalCode\":\"\"," +
    "        \"state\":\"\"," +
    "        \"streetAddress\":\"\"" +
    "    }," +
    "    \"customerStatus\":\"\"," +
    "    \"createdDate\": \"" + ((String)globalMap.get("Json.Date")) + "\"" +
    "}";

使用这种格式，很容易看到结束＆＃39;}＆＃39;也失踪了。

祝你好运。

将json放在String变量中

3 个答案: