英文:
Is JSONObject supported in OpenJDK 8?
问题
我在类路径中有一个名为 json-lib-2.2-jdk15.jar 的库，但在以下代码中它的效果与预期不符：
JSONObject jsonObj = new JSONObject(); // 我将其导入为 org.json.JSONObject;
jsonObj.put("UserName", "PETER");
jsonObj.put("Age", "20");
sName = jsonObj.toString();
writeLog(logFile, "JSON 值为：" + sName + "\n");
它返回 sName = null，但我预期它应返回 sName = {"UserName":"PETER","Age":"20"}。
代码有问题吗？或者 JSONObject 在 OpenJDK 8 中不起作用吗？
英文:
I have a json-lib-2.2-jdk15.jar library on my classpath, but it does not work as expected in the following code:
JSONObject jsonObj = new JSONObject(); // I import this as org.json.JSONObject;
jsonObj.put("UserName", "PETER");
jsonObj.put("Age", "20");
sName = jsonObj.toString();
writeLog(logFile, "JSON value is:" + sName + "\n");
It returns sName = null while I expect it to return sName = {"UserName":"PETER","Age":"20"}.
Is the code wrong or does JSONObject not work with OpenJDK 8?
答案1
得分: 2
Your json-lib-2.2-jdk15.jar是一个发布于2008年的版本，非常老旧，并且不再受支持。
您可以使用JSON-Java（参考实现）代替（如果您不想使用Jackson、GSON或其他更流行的库），并且这段代码：
JSONObject jsonObj = new JSONObject();
jsonObj.put("UserName", "PETER");
jsonObj.put("Age", "20");
String sName = jsonObj.toString();
System.out.println(sName);
将输出：
{"UserName":"PETER","Age":"20"}
如果您想要下载JSON-Java的.jar文件，您可以从这里下载。
英文:
Your json-lib-2.2-jdk15.jar is a release of 2008, which is very old, and which is no longer supported.
You can use JSON-Java (reference implementation) instead (if you do not want to use Jackson, GSON or something more popular), and this code:
JSONObject jsonObj = new JSONObject();
jsonObj.put("UserName", "PETER");
jsonObj.put("Age", "20");
String sName = jsonObj.toString();
System.out.println(sName);
will output:
{"UserName":"PETER","Age":"20"}
<sub>If you want to download the .jar file alternative of the JSON-Java, you can do it from here.</sub>
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