python\u4e2d\u81ea\u5e26\u4e86\u5904\u7406python\u7684\u6a21\u5757\uff0c\u4f7f\u7528\u65f6\u5019\u76f4\u63a5import json\u5373\u53ef\u3002\u4f7f\u7528loads\u65b9\u6cd5\u5373\u53ef\u5c06json\u5b57\u7b26\u4e32\u8f6c\u6362\u6210python\u5bf9\u8c61\u3002<\/p>\n
\u4e00\u3001\u4f46\u5728\u4f7f\u7528json\u6a21\u5757\u7684\u65f6\u5019\u9700\u8981\u6ce8\u610f\u7684\u662f\u5bf9\u4e2d\u6587\u7684\u5904\u7406\uff0cloads\u65b9\u6cd5\u5982\u679c\u4f20\u5165\u7684\u5b57\u7b26\u4e32\u7684\u7f16\u7801\u4e0d\u662fUTF-8\u7684\u8bdd\uff0c\u9700\u8981\u7528encoding\u6307\u5b9a\u5b57\u7b26\u7f16\u7801<\/p>\n
#!\/usr\/bin\/env python\n# -*- coding:utf-8 -*-\nimport json\njs = json.loads('{\"insun\": \"\u6cf0\u56e7 \/ \u4eba\u5728\u56e7\u90142 \/ Lost in Thailand \"}')\nprint json.dumps(js)\nprint json.dumps(js,ensure_ascii=False)<\/pre>\n\u6253\u5370\u6548\u679c\u5982\u4e0b\uff1a
\n{“insun”: “u6cf0u56e7 \/ u4ebau5728u56e7u90142 \/ Lost in Thailand “}
\n{“insun”: “\u6cf0\u56e7 \/ \u4eba\u5728\u56e7\u90142 \/ Lost in Thailand “}<\/p>\n
\u4e8c\u3001\u5982\u679c\u4f20\u5165\u7684\u5b57\u7b26\u4e32\u7684\u7f16\u7801\u4e0d\u662fUTF-8\u7684\u8bdd\uff0c\u9700\u8981\u7528encoding\u6307\u5b9a\u5b57\u7b26\u7f16\u7801\u3002\u5bf9\u4e8e\uff1a
\ndataDict = json.loads(dataJsonStr);
\n\u5176\u4e2ddataJsonStr\u662fjson\u5b57\u7b26\u4e32\uff0c\u5982\u679c\u5176\u7f16\u7801\u672c\u8eab\u662f\u975eUTF-8\u7684\u8bdd\uff0c\u6bd4\u5982\u662fGB2312\u7684\uff0c\u90a3\u4e48\u4e0a\u8ff0\u4ee3\u7801\uff0c\u5c31\u4f1a\u5bfc\u81f4\u51fa\u9519\u3002\u6539\u4e3a\u5bf9\u5e94\u7684\uff1a
\ndataDict = json.loads(dataJsonStr, encoding=”GB2312”);
\n\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
\u6b64\u5904\uff0c\u5373\u5bf9\u5e94\u7740\u4e0a\u9762\u51fd\u6570\u89e3\u91ca\u4e2d\u7684\uff1a<\/p>\n
If s is a str instance and is encoded with an ASCII based encoding other than UTF-8 (e.g. latin-1), then an appropriate encoding name must be specified.<\/p><\/blockquote>\n
\u4e09\u3001\u5982\u679c\u8981\u89e3\u6790\u7684\u5b57\u7b26\u4e32\uff0c\u672c\u8eab\u7684\u7f16\u7801\u7c7b\u578b\uff0c\u4e0d\u662f\u57fa\u4e8eASCII\u7684\uff0c\u90a3\u4e48\uff0c\u8c03\u7528json.loads\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5c06\u5bf9\u5e94\u5b57\u7b26\u4e32\uff0c\u8f6c\u6362\u4e3aUnicode\u7c7b\u578b\u3002
\n\u8fd8\u662f\u4ee5\u4e0a\u8ff0\u7684\uff1a
\ndataDict = json.loads(dataJsonStr, encoding=”GB2312″);
\n\u4e3a\u4f8b\uff0c\u5373\u4f7f\u4f60\u6b64\u5904\u7684\u5b57\u7b26\u4e32dataJsonStr\uff0c\u5df2\u7ecf\u901a\u8fc7encoding\u6307\u5b9a\u4e86\u5408\u9002\u7684\u7f16\u7801\uff0c\u4f46\u662f\u7531\u4e8e\u5176\u4e2d\uff0c\u5305\u542b\u4e86\u5176\u4ed6\u7684\u7f16\u7801\u7684\u5b57\u7b26\uff0c\u6bd4\u5982\u6211\u672c\u8eab dataJsonStr \u662fGB2312\u7684\u5b57\u7b26\uff0c\u4f46\u662f\u5176\u4e2d\u53c8\u5305\u542b\u4e86\u7684\u4e00\u4e9b\u65e5\u6587\u5b57\u7b26\uff0c\u6b64\u65f6\uff0cjson.loads\u8fd8\u662f\u4f1a\u51fa\u9519\uff0c\u56e0\u4e3a\u6b64\u5904\u7684 dataJsonStr \u4e0d\u662f\u4ee5ASCII\u4e3a\u57fa\u7840\u7684\u5b57\u7b26\u7f16\u7801\uff0c\u6240\u4ee5\uff0c\u9700\u8981\u5148\u53bb\u5c06dataJsonStr\u8f6c\u6362\u4e3aUnicode\uff0c\u7136\u540e\u518d\u8c03\u7528 json.loads\uff0c\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
dataJsonStrUni = dataJsonStr.decode(\"GB2312\");\ndataDict = json.loads(dataJsonStrUni, encoding=\"GB2312\");<\/pre>\n <\/p>\n
\u5b98\u7f51\uff1a
\n18.2. json \u2014 JSON encoder and decoder
\nhttp:\/\/docs.python.org\/2\/library\/json.html<\/a><\/p>\njson.dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True,cls=None, indent=None, separators=None, encoding=”utf-8″, default=None, sort_keys=False, **kw)
\njson.loads(s[, encoding[, cls[, object_hook[, parse_float[, parse_int[, parse_constant[,object_pairs_hook[, **kw]]]]]]]])<\/p>\n
\u53c2\u8003\uff1a<\/p>\n
\n- Python JSON\u6a21\u5757\u89e3\u7801\u4e2d\u6587\u7684BUG http:\/\/www.douban.com\/note\/214822809\/<\/a><\/li>\n
- \u4f7f\u7528python\u5904\u7406json http:\/\/www.giser.net\/?p=990<\/a><\/li>\n
- python\u4e0b\u8c03\u7528json.dumps\u4e2d\u6587\u663e\u793a\u95ee\u9898\u89e3\u51b3\u529e\u6cd5 http:\/\/blog.csdn.net\/sagittar\/article\/details\/6169605<\/a><\/li>\n
- Python\u89e3\u6790json\u6570\u636e\u7ed3\u6784\u8303\u4f8b http:\/\/hi.baidu.com\/leejun_2005\/item\/fc688affc196f8723c198b7c<\/a><\/li>\n
- Python\u4e2djson.loads\u89e3\u6790\u5305\u542bn\u7684\u5b57\u7b26\u4e32\u4f1a\u51fa\u9519 http:\/\/www.crifan.com\/use_python_json_loads_parse_string_contain_newline_will_fail_error\/<\/a><\/li>\n<\/ul>\n
————————-<\/p>\n
Python\u89e3\u6790json\u6570\u636e\u7ed3\u6784\u8303\u4f8b
\n\u4e00\u3001JSON\u7684\u683c\u5f0f:<\/p>\n
1,\u5bf9\u8c61:
\n{name:”Peggy”,email:”peggy@gmail.com”,homepage:”http:\/\/www.peggy.com”}
\n{ \u5c5e\u6027 : \u503c , \u5c5e\u6027 : \u503c , \u5c5e\u6027 : \u503c }<\/p>\n
2,\u6570\u7ec4\u662f\u6709\u987a\u5e8f\u7684\u503c\u7684\u96c6\u5408\u3002\u4e00\u4e2a\u6570\u7ec4\u5f00\u59cb\u4e8e”[“\uff0c\u7ed3\u675f\u4e8e”]”\uff0c\u503c\u4e4b\u95f4\u7528”,”\u5206\u9694\u3002
\n[
\n{name:”Peggy”,email:”peggy@gmail.com”,homepage:”http:\/\/www.peggy.com”}, {name:”Peggy”,email:”peggy@gmail.com”,homepage:”http:\/\/www.peggy.com”},
\n{name:”Peggy”,email:”peggy@gmail.com”,homepage:”http:\/\/www.peggy.com”}
\n]<\/p>\n
3, \u503c\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u3001true\u3001false\u3001null\uff0c\u4e5f\u53ef\u4ee5\u662f\u5bf9\u8c61\u6216\u6570\u7ec4\u3002\u8fd9\u4e9b\u7ed3\u6784\u90fd\u80fd\u5d4c\u5957\u3002<\/p>\n
4,json\u793a\u4f8b\uff1a<\/p>\n
import json\n# Converting Python to JSON\njson_object = json.write( python_object )\n# Converting JSON to Python\npython_object = json.read( json_object )<\/pre>\n5,simplejson \u793a\u4f8b\uff1a<\/p>\n
import simplejson\n# Converting Python to JSON\njson_object = simplejson.dumps( python_object )\n# Converting JSON to Python\npython_object = simplejson.loads( json_object )<\/pre>\n\u4e8c\u3001python\u4eceweb\u63a5\u53e3\u4e0a\u67e5\u8be2\u4fe1\u606f<\/p>\n
1\uff0c\u5148\u770b\u4e2a\u4f8b\u5b50
\n>>> import urllib
\n>>> url=’http:\/\/www.example.com\/’
\n>>> page=urllib.urlopen(url)
\n>>> data=page.read()
\n>>> print data \/\/\u8fd9\u4e2a\u5c31\u662fjson\u7684\u6570\u636e\u7ed3\u6784\uff0cstr\u7c7b\u578b
\n{“total”:1,”data”:[{“oume”:””,”asNum”:”33333″,”cabinet”:”22″,”dMel”:”rr”,”hostname”:”h1.bkeep.com”,”logicSite”:”99″,”menfo”:{“amount”:4,”size”:8192},”ip”:”2.16.20.13″,”isOnline”:true,”useState”:”888″,”serviceTag”:”222X”,”cpuInfo”:{“amount”:2,”masterFrequency”:1995,”model”:”Intel(R) Xeon(R) CPU E5405 @ 2.00GHz”,”coreNum”:8,”l2CacheSize”:6144},”cabinetPositionNum”:””,”buyTime”:”2009-06-29″,”manageIp”:”2.31.58.223″,”idc”:”\u817e\u8baf\u673a\u623f”,”resperson”:”\u9a6c\u5316\u817e”}],”errorMsg”:””,”isSuccess”:true}<\/p>\n
>>> type(data)
\n<type ‘str’><\/p>\n
2\uff0c\u6709\u4e86json\u6570\u636e\u7ed3\u6784\uff0c\u6211\u5374\u4e0d\u77e5\u9053\u600e\u4e48\u628a\u5b83\u89e3\u6790\u51fa\u6765\uff0c\u5e78\u4e8f\u6709\u4e86\u674e\u5efa\u8f89\u7684\u6307\u5bfc\u3002\u5927\u6982\u601d\u8def\u662f\uff1a<\/p>\n
\u9996\u5148\uff0cjson\u57fa\u672c\u4e0a\u662fkey\/value\u7684\uff0cpython\u4e2d\u5c31\u53eb\u5b57\u5178\u3002\u65e2\u7136\u662f\u5b57\u5178\uff0c\u90a3\u5c31\u5e94\u8be5\u5b89\u7167\u8bfb\u5b57\u5178\u7684\u65b9\u5f0f\u53bb\u8bfb\u3002<\/span>
\n\u5c06\u4e0a\u9762\u7684data\u8f6c\u4e3a\u5b57\u5178\u7c7b\u578b\uff0c\u8fd9\u91cc\u7528json\u6a21\u5757\u7684read\u65b9\u6cd5\u3002<\/span><\/p>\n>>> import json
\n>>> ddata=json.read(data)
\n>>> ddata
\n{‘isSuccess’: True, ‘errorMsg’: ”, ‘total’: 1, ‘data’: [{‘isOnline’: True, ‘idc’: ‘xe6x9dxadxe5xb7f’, ‘assetsNum’: ‘227003’, ‘responsibilityPerson’: ‘xe4xb9’, ‘deviceModel’: ‘a 1950’, ‘serviceTag’: ‘233’, ‘ip’: ‘2.1.20.163’, ‘hostname’: ‘h.bkeep.com’, ‘manageIp’: ‘2.31.58.223’, ‘cabinet’: ‘H05’, ‘buyTime’: ‘2009-06-29’, ‘useState’: ‘xe4xbd’, ‘memoryInfo’: {‘amount’: 4, ‘size’: 8192}, ‘cpuInfo’: {‘coreNum’: 8, ‘l2CacheSize’: 6144, ‘amount’: 2, ‘model’: ‘Intel(R) Xeon(R) CPU E5405 @ 2.00GHz’, ‘mastncy’: 1995}, ‘cabineionNum’: ”, ‘outGuime’: ”, ‘logicSite’: ‘xe46x969’}]}
\n>>><\/p>\n
\u770b\u770bddata\u5df2\u7ecf\u662fdict\u7c7b\u578b\u4e86
\n>>> type(ddata)
\n<type ‘dict’><\/p>\n
\u5176\u6b21\uff0c\u6211\u4eec\u4ee5\u8bfb\u5b57\u5178\u4e2dkey \u4e3a\u201ddata\u201d\u5bf9\u5e94\u7684\u952e\u503c
\n>>> ddata[‘data’] \/\/\u67e5\u770b\u5b57\u5178\u7684\u65b9\u6cd5\uff01
\n[{‘isOnline’: True, ‘idc’: ‘xe6x9dxadxee6x88xbf’, ‘assetsNum’: ‘B50070100007003’, ‘responsibilityPerson’: ‘xe5xafx9a’, ‘deviceModel’: ‘PowerEdge 1950’, ‘serviceTag’: ‘7292X’, ‘ip’: ‘2.16.20.163’, ‘hostname’: ‘h1.bkeep.com’, ‘manageIp’: ‘2.31.58.223’, ‘cabinet’: ‘H05’, ‘buyTime’: ‘2009-06-29’, ‘useState’: ‘xe4xbdxbfe4xb8xad’, ‘memoryInfo’: {‘amount’: 4, ‘size’: 8192}, ‘cpuInfo’: {‘coreNum’: 8, ‘l2Caze’: 6144, ‘amount’: 2, ‘model’: ‘Intel(R) Xeon(R) CPU E5405 @ 2.00GHz’, ‘masterFrequency’: 1995}, ‘cabinetonNum’: ”, ‘outeTime’: ”, ‘logicSite’: ’87xe7xabx99′}]<\/p>\n
>>>type(ddata[\u2018data\u2019])
\n<type ‘list’><\/p>\n
\u53d1\u73b0ddata[\u2018data\u2019]\u662f\u4e00\u4e2a\u5217\u8868\uff0c\u5217\u8868\u5c31\u8981\u7528\u5e8f\u53f7\u6765\u67e5\u8be2<\/span>
\n>>> ddata[‘data’][0] \/\/\u67e5\u770b\u5217\u8868\u7684\u65b9\u6cd5\uff01
\n{‘isOnline’: True, ‘idc’: ‘xe6x9d’, ‘assetsNum’: ‘07003’, ‘resposon’: ‘xe5xbc\\xafx9a’, ‘deviceModel’: ‘PowerEdge 1950’, ‘serviceTag’: ‘7002X’, ‘ip’: ‘2.16.20.163’, ‘hostname’: ‘h1.bkeep.com’, ‘manageIp’: ‘2.31.58.223’, ‘cabinet’: ‘H05’, ‘buyTime’: ‘2009-06-29’, ‘useState’: ‘x94xa8xe4x8xad’, ‘memoryInfo’: {‘amount’: 4, ‘size’: 8192}, ‘cpuInfo’: {‘coreNum’: 8, ‘l2CacheSize’: 6144, ‘amount’: 2, ‘model’: ‘Intel(R) Xeon(R) CPU E5405 @ 2.00GHz’, ‘masterFrequency’: 1995}, ‘cabinetPx99’}
\n>>><\/p>\n\u5475\u5475\uff0cddata[\u2018data\u2019]\u5217\u8868\u76840\u53f7\u5143\u7d20\u662f\u4e2a\u5b57\u5178\u3002\u3002<\/p>\n
\u597d\uff0c\u90a3\u6211\u4eec\u67e5\u67e5key\u4e3aidc\u7684\u952e\u503c\u662f\u591a\u5c11
\n>>> ddata[‘data’][0][‘idc’] \/\/\u67e5\u770b\u5b57\u5178\u7684\u65b9\u6cd5\uff01
\n‘xe6x8xbf’<\/p>\n
>>> print ddata[‘data’][0][‘idc’]
\n\u6df1\u5733\u817e\u8baf\u673a\u623f<\/p>\n
\u770b\u5230\u8fd9\u91cc\u7ec8\u4e8e\u660e\u767d\u600e\u4e48\u89e3\u6790json\u6570\u636e\u7ed3\u6784\u4e86\u3002\u3002\u3002\u90a3\u5c31\u662f\u201c\u4e00\u5c42\u4e00\u5c42\u5f80\u4e0b\u5265<\/strong>\u201d<\/span><\/p>\n