反射模擬--Listusers-----JSON

反射--簡單模擬，有不完善的地方還請大家諒解

public String ObjToJson(Object Obj) {


String JsonObjString = "";
// ------------------------------------ 取得本類的全部屬性和getters
Field[] field = Obj.getClass().getDeclaredFields();
Method method = null;
for (int i = 0; i < field.length; i++) {


try {
method = Obj.getClass().getMethod(
"get"
+ field[i].getName().substring(0, 1)
.toUpperCase()
+ field[i].getName().substring(1));
JsonObjString += "'" + field[i].getName() + "':'"
+ method.invoke(Obj) + "',";
} catch (Exception e) {
e.printStackTrace();
}


}


return "{" + JsonObjString.substring(0, JsonObjString.length() - 1) + "}";
}

public String ListoJson(List<?>list){

String JsonListString="";

for (Object object : list) {
JsonListString+=this.ObjToJson(object)+",";
}
return "["+JsonListString.substring(0,JsonListString.length()-1)+"]";
}

輸出結果：[{'name':'msz','age':'1'},{'name':'msz','age':'1'}]