1.代码如下：

import org.json.JSONObject;
import org.json.JSONException; 

public class testJson{
    
    public static void jsonObjectTest() {
        JSONObject studentJSONObject = new JSONObject();  
        try {  
            studentJSONObject.put("name", "Jason");  
            studentJSONObject.put("id", 20130001);  
            studentJSONObject.put("phone", "13579246810");  
        } catch (JSONException e) {  
            e.printStackTrace();  
        }          
    };

    public static void main (String[] args){
        System.out.println("test json:");
    }
}

截图：

2.执行方式：
已下载java-json.jar 包，编译通过，但执行报错
在 cmd 内执行

3.错误文本：

D:\javaCode\testJSON>javac -cp java-json.jar testJson.java

D:\javaCode\testJSON>java testJson Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONException         at java.lang.Class.getDeclaredMethods0(Native Method)         at java.lang.Class.privateGetDeclaredMethods(Unknown Source)         at java.lang.Class.privateGetMethodRecursive(Unknown Source)         at java.lang.Class.getMethod0(Unknown Source)         at java.lang.Class.getMethod(Unknown Source)         at sun.launcher.LauncherHelper.validateMainClass(Unknown Source)         at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source) Caused by: java.lang.ClassNotFoundException: org.json.JSONException         at java.net.URLClassLoader.findClass(Unknown Source)         at java.lang.ClassLoader.loadClass(Unknown Source)         at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)         at java.lang.ClassLoader.loadClass(Unknown Source)         ... 7 more

4.请问：
(1)不加try catch 报错，网上其他人的怎么不用？
(2)加上了try catch 后程序怎么调通？

(3)缺少包？配置不对？搞不定了，请指教，谢谢