在 Java 中使用 GSON 验证 JSON
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Validating JSON using GSON in java
提问by Mr37037
I'm using GSON to validate a string which is in JSON format:
我正在使用 GSON 来验证 JSON 格式的字符串：
String json="{'hashkey':{'calculatedHMAC':'f7b5addd27a221b216068cddb9abf1f06b3c0e1c','secretkey':'12345'},operation':'read','attributes':['name','id'],'otid':'12'}";
Gson gson=new Gson();
Response resp = new Response();
RequestParameters para = null;
try{
para = gson.fromJson(json, RequestParameters.class);
}catch(Exception e){
System.out.println("invalid json format");
}
Its doing good but when I remove the quotes like below, I have removed from hashkey:
它做得很好，但是当我删除如下引号时，我已从哈希键中删除：
"{hashkey':{'calculatedHMAC':'f7b5addd27a221b216068cddb9abf1f06b3c0e1c','secretkey':'12345'},operation':'read','attributes':['name','id'],'otid':'12'}"
It's still validating it as a proper JSONformat and not throwing any exception and not going in catch body. Any reason why it is doing so? How would I solve this?
它仍然将其验证为正确的 JSON 格式，并且不会抛出任何异常并且不会进入 catch 主体。有什么理由这样做吗？我将如何解决这个问题？
RequestParameters class:
请求参数类：
public class RequestParameters {
HashKey hashkey;
String operation;
int count;
int otid;
String[] attributes;
}
回答by Braj
Now it will treat second quote as part of hashkey. Have a look at below json string that is get back from the object.
现在它会将第二个引号视为哈希键的一部分。看看下面从对象返回的 json 字符串。
I tested it at jsonlint
我在jsonlint 上测试过
{
"hashkey\u0027": {
"calculatedHMAC": "f7b5addd27a221b216068cddb9abf1f06b3c0e1c",
"secretkey": "12345"
},
"operation\u0027": "read",
"attributes": [
"name",
"id"
],
"otid": "12"
}
sample code:
示例代码：
String json = "{hashkey':{'calculatedHMAC':'f7b5addd27a221b216068cddb9abf1f06b3c0e1c','secretkey':'12345'},operation':'read','attributes':['name','id'],'otid':'12'}";
Gson gson = new Gson();
try {
Object o = gson.fromJson(json, Object.class);
System.out.println(new GsonBuilder().setPrettyPrinting().create().toJson(o));
} catch (Exception e) {
System.out.println("invalid json format");
}
Is there quote needed around JSON string against keys?
JSON 字符串周围是否需要针对键的引号？
