Python SQL查询并生成json文件操作示例

 import datetime import os import mssqlhelper ms = mssqlhelper.MSSQL(host="192.168.0.108", user="sa", pwd="sa", db="ComPrject") def getAreas(cityid): arealist=ms.ExecQuery("select *From dbo.areas where cityid='%s' " % cityid) return arealist def getCity(provinces): citylist=ms.ExecQuery("select *From dbo.cities where provinceid='%s'" % provinces) return citylist def getProvinces(): provlist=ms.ExecQuery("select *From dbo.provinces") return provlist def createFileJson(): date=datetime.datetime.now().strftime('%Y-%m-%d') path=date+'-provinces.json' return path def writeJson(path): provlist=getProvinces() with open(path,"w+",encoding="utf-8") as f: f.write("[") lp = 0 for p in provlist: if lp>0: f.write(",\n") else: f.write("\n") f.write("{\n") f.write('"Code":"%s"\n'% p[1]) f.write(',"Name":"%s"\n'% p[2]) f.write(',Nodes:[\n') citylist=getCity(p[1]) lc = 0 for c in citylist: if lc>0: f.write("\t,\n") else: f.write("\n") f.write("\t{\n") f.write('\t"Code":"%s"\n'% c[1]) f.write('\t,"Name":"%s"\n'% c[2]) f.write('\t,Nodes:[\n') arealist = getAreas(c[1]) la = 0 for a in arealist: if la>0: f.write("\t\t,\n") else: f.write("\n") f.write("\t\t{\n") f.write('\t\t"Code":"%s"\n'% a[1]) f.write('\t\t,"Name":"%s"\n'% a[2]) f.write("\t\t}\n") la += 1 f.write("\t]\n") f.write("\t}\n") lc += 1 f.write("]\n") f.write("}\n") lp += 1 f.write("]\n") if __name__ == '__main__': path=createFileJson() writeJson(path)