python自動生成bean類


近期在學習python,一直在和java做對比,目前沒有發現有通過字段自動生成getter setter方法,故此自己寫了一個類,可以通過__init__方法傳入類名和字段數組,再調用內部的方法,就可以自動生成一個bean類,代碼如下:

代碼很簡單,但還有許多可以完善的地方,比較空格符,參數是否為保留字,append方法中通過+號連接的字符串等,有強迫症的碼友可以加以完善。

class ConvertBean:
def __init__(self, className, parameters):
self.__className = className
self.__parameters = parameters

def convert(self):
classStr = "class {0}:\n def __init__(self,{1}):\n{2}\n\n{3}\n{4}"
propertyStr = "@property"
setterStr = ".setter"
initParms = []
initParmsAss = []
initParmsGetter = []
initParmsSetter = []
size = len(self.__parameters)
for i in range(size):
__parm = self.__parameters[i]
initParms.append(__parm)
initParmsAss.append(" self.__" + __parm + " = " + __parm)
initParmsGetter.append(
" " + propertyStr + "\n def " + __parm + "(self):\n return self.__" + __parm + "\n")
initParmsSetter.append(
" @" + __parm + setterStr + "\n def " + __parm + "(self, " + __parm + "):\n self.__" + __parm + " = " + __parm + "\n")
__initParmsForInitParms = ",".join(initParms) # 填充構造函數參數
__initParmsForAssignment = "\n".join(initParmsAss) # 參數賦值
__initParmsForGetter = "\n".join(initParmsGetter) # 生成getter
__initParmsForSetter = "\n".join(initParmsSetter) # 生成setter

print(classStr.format(self.__className, __initParmsForInitParms, __initParmsForAssignment, __initParmsForGetter,
__initParmsForSetter))


bean = ConvertBean("Student", ["name", "age", "phone"])
bean.convert()




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