from flask importFlask,request,render_templatefrom flask_sqlalchemy importSQLAlchemy

app= Flask(__name__)

app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db' #这里用这个是不行的　注意修改为ｍｙｓｑｌ　才可以正常使用db=SQLAlchemy(app)

@app.route("/listModel", methods=["GET"])deflistModel():

dbName= request.args.get("dbname","ｘｘ")

tableStr= """select table_name,table_comment from information_schema.tables where TABLE_TYPE='BASE TABLE' and table_schema='{}'""".format(

dbName)

resultList=db.engine.execute(tableStr)

_infoList=[]ifresultList:for index, result inenumerate(resultList):

tableName=result[0]

filedStr= """select ORDINAL_POSITION,column_name,COLUMN_COMMENT,DATA_TYPE,CHARACTER_MAXIMUM_LENGTH,numeric_precision,numeric_scale,COLUMN_KEY,COLUMN_DEFAULT,IS_NULLABLE from information_schema.columns where table_schema='{}' and table_name='{}'""".format(

dbName, tableName)

filedList=db.engine.execute(filedStr)

_infolist=[]iffiledList:for field infiledList:if field[5]:

CHARACTER_MAXIMUM_LENGTH= field[5]elif field[4]:

CHARACTER_MAXIMUM_LENGTH= field[4]else:

CHARACTER_MAXIMUM_LENGTH=0if field[9] == "YES":

IS_NULLABLE= "Y"

else:

IS_NULLABLE= "N"_infoDict={"ORDINAL_POSITION": field[0],"column_name": field[1],"COLUMN_COMMENT": field[2],"DATA_TYPE": field[3],"CHARACTER_MAXIMUM_LENGTH": CHARACTER_MAXIMUM_LENGTH,"numeric_scale": field[6] if field[6] else0,"COLUMN_KEY": "Y" if field[7] else "","COLUMN_DEFAULT": field[8] if field[8] else "","IS_NULLABLE": IS_NULLABLE,

}

_infolist.append(_infoDict)

infoDict={"index": index + 1,"tableName": tableName,"table_comment": result[1],"fields": _infolist

}

_infoList.append(infoDict)return render_template("demos.html", rows=_infoList,dbName=dbName)if __name__ == '__main__':

app.run()