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in Technique[技术] by (71.8m points)

通过Python将Json数据导入MongoDB

首先数据是以标准的json格式的文本。然后想要通过python脚本来导入Mongodb中。
json

{
    "service": "http", 
    "datetime": "2017-03-28 17:23:19", 
    "starttime": "1490692810", 
    "endtime": "1490692999", 
    "port": 80
}{  
    "service": "ewall", 
    "datetime": "2017-03-28 17:23:19",
    "starttime": "1490692810", 
    "endtime": "1490692999", 
    "port": 1328
}

python部分代码:

with open(filen, 'r') as f:
        while 1:
            try:
                jsonstr = f.readline().strip()
                # print jsonstr 可以输出整个json的内容
                if not jsonstr:
                    break
                try:
                    j = json.loads(jsonstr) #这里好像不处理的问题
                    
                except:
                    continue
                jsonlist.append(j)
            except:
                break

请问这个情况要怎么解决呢?谢谢


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1 Answer

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by (71.8m points)

@sheep3 的回答是对的。

如果你直接把JSON放MongoDB里你可以用mongoimport (https://docs.mongodb.com/manu...

你还想处理数据的话可以用这样的代码:

import json
filename = 'test.json'

with open(filename, 'r') as f:
    content = json.load(f)

如果JSON文件的内容比内存大你应该通过streaming方式把JSON文件打开。你可以用ijson包(https://pypi.python.org/pypi/...)。用法也比较简单:

import ijson

with open('test.json') as fp:
    objects = ijson.items(fp, "item")
    for object in objects:
        print(object)

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