将JSON值转换为适当的数据类型

Question

我有一些Json数据，我需要将每个值作为字符串或数字或返回的数据类型返回。 但是我面临着java.lang.ClassNotFoundException：验证     在java.net.URLClassLoader.findClass（未知来源）

  public class Validation {
        public void readJSON() throws Exception {
                File file = new File("myJSONFile.txt");
                String content = FileUtils.readFileToString(file, "utf-8");

                // Convert JSON string to JSONObject
                JSONObject tomJsonObject = new JSONObject(content);
                System.out.println(tomJsonObject);
                System.out.println(tomJsonObject.getString("age"));
                validateByType(tomJsonObject, "age", null);
            }

            public void validateByType(JSONObject jsonString, String pathString, String typeString)
                    throws JSONException, ClassNotFoundException, NoSuchFieldException, SecurityException {
                String jsonField = jsonString.getString(pathString);
                // pathString = "age";
                // typeString ="number";

                Class<?> c = Class.forName("Validation");
                Field f = c.getField(jsonField);
                System.out.format("Type: %s%n", f.getType());
                System.out.format("GenericType: %s%n", f.getGenericType());

            }

            public static void main(String[] args) {
                // TODO Auto-generated method stub
                System.out.println("Test");
                Validation v = new Validation();
                try {
                    v.readJSON();

                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }

        }

Answer 1

在传递类的简单名称导致ClassNotFoundException时，Class.forName（）方法将类的完全限定名称作为参数。