python3.4.3 调用http接口 解析response xml后插入数据库

工作中需要调用一个http的接口，等不及java组开发，就试着用python去调用。Python版本3.4.3

完整的流程包括：从sqlServer取待调用的合同列表 -> 循环调用http接口 -> 将response写入xml文件 -> 解析xml -> 插入oracle数据库

要去公司旅游了，先把代码放着，以后再详细解释记录一下。

#!/usr/bin/python3
import time
import pymssql
import urllib.parse
import httplib2
import os.path
import xml.etree.ElementTree
import cx_Oracle

v_curr_datetime = time.strftime('%Y%m%d%H%M%S', time.localtime(time.time()))
print ('Step1: ' + v_curr_datetime)

##连接sqlServer，获得请求xml，写入txt文件#########################
#conn_req = pymssql.connect(host="***",user="***",password="***",database="***",charset = "utf8")
conn_req = pymssql.connect(host="***",user="",password="",database="ods",charset = "utf8")
cur_req = conn_req.cursor()

v_file_name_req = 'requestList.txt'
f_req = open(v_file_name_req, 'w')
f_req = open(v_file_name_req, 'r+')
f_req.truncate()

v_sql_req = "SELECT Loan_No,request_xml FROM if_haier_loan_contract_list"
cur_req.execute(v_sql_req)
rows = cur_req.fetchall()
for row_req in rows:
    #row_req = row_req[0]+'||'+row_req[1]+'\n'
    row_req = row_req[0] + '||' + 'kfs;serv10000100056;' + row_req[1] + '\n'
    print(row_req)
    f_req.write(row_req)

f_req.close()
cur_req.close()
conn_req.close()

print ('Step2: ' +  time.strftime('%Y%m%d%H%M%S', time.localtime(time.time())))

##循环得到的xml文件，逐个调用还款计划接口，解析后存到数据库##############
f_read = open('requestList.txt', 'r')
for v_row_read in f_read:
    v_row_read = v_row_read.split('||')
    print ('当前调用xml: ' + v_row_read[1])
    http = httplib2.Http()
    url = 'http://***'   

    #body_str ='kfs;serv10000100056; <?xml version="1.0" encoding="gb2312" standalone="yes"?><msgbody><serviceId>serv10000100056</serviceId><GEN_GL_NO>1257393</GEN_GL_NO><LOAN_NO>HCF-CSCP20150708702904001</LOAN_NO><APP_USER_ID>01400515</APP_USER_ID><APP_USER_NAME>xxx</APP_USER_NAME><APP_USER_ORG_NO>0010</APP_USER_ORG_NO><ENQ_TYP>ALL</ENQ_TYP></msgbody>'
    body_str = v_row_read[1]
    headers = {'Content-type': 'application/x-www-form-urlencoded'}
    print ('*'*30)
    ##请求接口数据#################
    response, content = http.request(url, 'POST', headers=headers, body=body_str)
    ##将xml头的gb2312替换成utf-8###
    print ('*'*20)
    v_response = content.decode("utf-8").replace('encoding=\"gb2312\"','encoding=\"utf-8\"')

    ##将response生成xml文件#######
    v_file_name = v_row_read[0] + '.xml'
    f = open(v_file_name, 'w')
    f.truncate()
    f.write(v_response)
    f.write('\n')
    f.close()

    ##读取xml####################
    root=xml.etree.ElementTree.parse(v_file_name)
    ##连接数据库##################
    connMAPP = cx_Oracle.connect("user","password","tnsname")
    cur1 = connMAPP.cursor()

    ##将数据写入数据库#############
    #book=root.findall('MX')
    book=root.iter('MX')
    for book_list in book:
        #print ('='*20)
        v_row = []
        for note in book_list:
            v_temp = v_row.append(note.text)
        #v_row = v_row.split(',')
        #print (v_row)

        v_sql = " insert into temp_py values (%(v0)s,to_date(\'%(v1)s\','YYYY-MM-DD')) "%{'v0':v_row[0],'v1':v_row[1]}
        #print (v_sql)
        cur1.execute(v_sql)

    ##commit后关闭数据库连接
    connMAPP.commit()
    cur1.close()
    connMAPP.close()
    print ('Step3: ' +  time.strftime('%Y%m%d%H%M%S', time.localtime(time.time())))