Python實現把json格式轉換成文本或sql檔案

python如何將json格式的資料快速的轉化成指定格式的資料呢？或者轉換成sql檔案？

下面的例子是將json格式的資料准換成以#_#分割的文本資料，也可用於產生sql檔案。

[root@bogon tutorial]# vi json2txt.py #-*- coding: UTF-8 -*-import jsondata = []with open('./tencent_test.json') as f:  for line in f:    data.append(json.loads(line))#print json.dumps(data, ensure_ascii=False)import codecsfile_object = codecs.open('tencent.txt', 'w' ,"utf-8")str = "\r\n"splitstr = "#_#"for item in data:  #print json.dumps(item)  #str = str + "insert into tencent(name,catalog,workLocation,recruitNumber,detailLink,publishTime) values "  #str = str + "'%s','%s','%s','%s','%s'\r\n" % (item['parentTitle'],item['parentLink'],item['author'],item['link'],item['title'])  #print json.loads(item['author']) + "\r\n"  str = "%s#_#%s#_#%s#_#%s#_#%s\r\n" % (item['parentTitle'],item['parentLink'],item['author'],item['link'],item['title'].strip())  file_object.write(str)#import codecs#file_object = codecs.open('tencent.txt', 'w' ,"utf-8")#file_object.write(str)file_object.close()print "success"

註：如果資料量過大不宜全部放在str裡一次性寫入檔案。可以考慮逐行寫入，或者到達一定程度時批量寫入。

另外：python通過strip(rm)替換字串，當rm為空白時，預設刪除空白符（包括'\n', '\r', '\t', ' ')。

測試：

json格式的資料

[root@bogon tutorial]# vi tencent_test.json {"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}{"author": "作者", "parentTitle": "父標題", "title": "標題", "pageUrl": "pageurl", "link": "linkurl", "parentLink": "parenturl"}

運行python json2txt.py

[root@bogon tutorial]# python json2txt.py success[root@bogon tutorial]# more tencent.txt 父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題父標題#_#parenturl#_#作者#_#linkurl#_#標題

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