基于 Serverless 快速实现简单版查询工具

朋友的单位有一个小型的图书室，图书室中摆放了很多的书，每本书都被编号放在对应的区域，为了让大家更快、更容易找到这些书，他联系我，让我帮他弄一个图书查询系统，通过用户输入能模糊匹配到对应的结果，并且提供书籍对应的地点。

功能设计

• 让朋友把书籍整理并存储到一个 Excel 表格中；
• 将 Excel 表放到对象存储中，云函数读取这个文件并解析；
• 根据词语的相似寻找相似的图书；
• 前端页面通过 MUI 制作，放在对象存储中，并且使用对象存储的 Website 功能；

整体实现

数据形态

Excel 样式主要包括书名和编号，同时下面包括分类的 tab：

基于函数的搜索功能

核心代码实现：

 复制代码

importjieba
importopenpyxl
fromgensimimportcorpora, models, similarities
fromcollectionsimportdefaultdict
importurllib.request

withopen("/tmp/book.xlsx","wb")asf:
f.write(
urllib.request.urlopen("https://********").read()
)


top_str ="abcdefghijklmn"
book_dict = {}
book_list = []
wb = openpyxl.load_workbook('/tmp/book.xlsx')
sheets = wb.sheetnames
foreve_sheetinsheets:
print(eve_sheet)
sheet = wb.get_sheet_by_name(eve_sheet)
this_book_name_index =None
this_book_number_index =None
foreve_headerintop_str:
ifsheet[eve_header][0].value ==" 书名 ":
this_book_name_index = eve_header
ifsheet[eve_header][0].value ==" 编号 ":
this_book_number_index = eve_header
print(this_book_name_index, this_book_number_index)
ifthis_book_name_indexandthis_book_number_index:
this_book_list_len = len(sheet[this_book_name_index])
foriinrange(1, this_book_list_len):
add_key ="%s_%s_%s"% (
sheet[this_book_name_index][i].value, eve_sheet, sheet[this_book_number_index][i].value)
add_value = {
"category": eve_sheet,
"name": sheet[this_book_name_index][i].value,
"number": sheet[this_book_number_index][i].value
}
book_dict[add_key] = add_value
book_list.append(add_key)


defgetBookList(book, book_list):
documents = []
foreve_sentenceinbook_list:
tempData =" ".join(jieba.cut(eve_sentence))
documents.append(tempData)
texts = [[wordforwordindocument.split()]fordocumentindocuments]
frequency = defaultdict(int)
fortextintexts:
forwordintext:
frequency[word] +=1
dictionary = corpora.Dictionary(texts)
new_xs = dictionary.doc2bow(jieba.cut(book))
corpus = [dictionary.doc2bow(text)fortextintexts]
tfidf = models.TfidfModel(corpus)
featurenum = len(dictionary.token2id.keys())
sim = similarities.SparseMatrixSimilarity(
tfidf[corpus],
num_features=featurenum
)[tfidf[new_xs]]
book_result_list = [(sim[i], book_list[i])foriinrange(0, len(book_list))]
book_result_list.sort(key=lambdax: x[0], reverse=True)
result = []
foreveinbook_result_list:
ifeve[0] >=0.25:
result.append(eve)
returnresult


defmain_handler(event, context):
try:
print(event)
name = event["body"]
print(name)
base_html ='''
{{book_name}}
 分类：{{book_category}}
 编号：{{book_number}}
'''
result_str =""
foreve_bookingetBookList(name, book_list):
book_infor = book_dict[eve_book[1]]
result_str = result_str + base_html.replace("{{book_name}}", book_infor['name']) \
.replace("{{book_category}}", book_infor['category']) \
.replace("{{book_number}}", book_infor['number']ifbook_infor['number']else"")
ifresult_str:
returnresult_str
exceptExceptionase:
print(e)
return'''
 未找到图书信息，请您重新搜索。
'''

同时配置 APIGW：

功能页面

 复制代码

html,
body{
background-color:#efeff4;
}


functiongetResult(){
varUTFTranslate = {
Change:function(pValue){
returnpValue.replace(/[^\u0000-\u00FF]/g,function($0){
returnescape($0).replace(/(%u)(\w{4})/gi,"&#x$2;")
});
},
ReChange:function(pValue){
returnunescape(pValue.replace(/&#x/g,'%u').replace(/\\u/g,'%u').replace(/;/g,''));
}
};

varxmlhttp;
if(window.XMLHttpRequest) {
// IE7+, Firefox, Chrome, Opera, Safari 浏览器执行代码
xmlhttp =newXMLHttpRequest();
}else{
// IE6, IE5 浏览器执行代码
xmlhttp =newActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange =function(){
if(xmlhttp.readyState ==4&& xmlhttp.status ==200&& xmlhttp.responseText) {
document.getElementById("result").innerHTML = UTFTranslate.ReChange(xmlhttp.responseText).slice(1,-1).replace("\"",'"');
}
}
xmlhttp.open("POST","https://********",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send(document.getElementById("book").value);
}




图书检索系统