1.如果用jquery请求不同服务的数据，或出现跨域 的问题，浏览器会阻止数据成功返回，下面是解决跨域的ajax请求：
varxhrurl ='http://127.0.0.1:5000/getfunc?content=今天天气很好，但是心情很糟糕，就是因为没有钱';
$.ajax({
type:"get",
async:false,
url:xhrurl,
cache:false,
dataType:"jsonp",
jsonp:"callbackparam",
jsonpCallback:"jsonpCallback1",
success:function(json){
alert(json);
},
error:function(e){
alert("error");
}
});
functionjsonpCallback1(data) {
alert(data);
}
Python代码需要做如下处理:
# -*- coding: utf-8 -*-
from snownlp import SnowNLP
import json
from flask import Flask, render_template, request, jsonify,Response
app = Flask(__name__)
# @app.route('/')
@app.route('/getfunc', methods=['POST', 'GET'])
def getfunc():
#data = json.loads(request.form.get('data'))
# resp = Response(data)
#Response.headers['Access-Control-Allow-Origin'] = '*'
# data = json.loads(request.get_json())
# story_data = json.loads(request.get_data().decode('utf-8'))
#context = data['lesson']
jsonp_callback = request.args.get('callback', 'jsonpCallback1') # 这里的callback对应的值需要和ajax请求的callback保持一致。
context = request.values['content']
print(context)
s = SnowNLP(context)
'''
s = SnowNLP("是不是还不是就这样子了，完全不行，我觉得这车完全不行！")
'''
arry = []
'''' for sentence in s.sentences:
#print(sentence)
'''
'''
s0 = SnowNLP(s.sentences[0])
s1 = SnowNLP(s.sentences[1])
s2 = SnowNLP(s.sentences[2])
s3 = SnowNLP(s.sentences[3])
s4 = SnowNLP(s.sentences[4])
'''
_snownlpNum = 0
for k in s.sentences:
print(k)
_snownlpvalue = SnowNLP(k)
print(_snownlpvalue.sentiments)
arry.insert(_snownlpNum, _snownlpvalue.sentiments)
_snownlpNum + 1
'''
print(s0.sentiments)
print(s1.sentiments)
print(s2.sentiments)
print(s3.sentiments)
print(s4.sentiments)
arry.insert(0,s0.sentiments)
arry.insert(1,s1.sentiments)
arry.insert(2,s2.sentiments)
arry.insert(3,s3.sentiments)
arry.insert(4,s4.sentiments)
print(arry)
s2 = SnowNLP(sentence[1])
print("s2:"+s2.sentiments)
'''
positive = []
negative = []
value = 0
value1 = 0
num = 0
for i in arry:
# print(i)
if (i < 0.5):
print("负面词：" + str(i))
value += i
positive.insert(num, i)
num + 1
elif (i > 0.5):
print("正面词：" + str(i))
value1 += i
negative.insert(num, i)
num + 1
# ("负面词结果:" + str(value / 2))
# print("正面词结果:" + str(value1 / 3))
# print("正面词结果1:" + str((0.8342 + 0.8584 + 0.6251) / 3))
# print("负面词结果1:" + str((0.3280 + 0.3281) / 2))
print(negative)
print(positive.__len__())
print(positive)
# _result_positive = 0
# np.positive()
_result_positive = sum(positive)
_result_negative = sum(negative)
'''
print(_result_positive/positive.__len__())
print(_result_negative/negative.__len__())
print(_result_positive)
print(_result_negative)
'''
print(_result_positive / (_result_positive + _result_negative))
print(_result_negative / (_result_positive + _result_negative))
'''
_data_result1 = [{"_result_positive": _result_positive / (_result_positive + _result_negative),
"_result_negative": _result_negative / (_result_positive + _result_negative)},
{"_result_positive_len": positive.__len__(),
"_result_negative_len": negative.__len__()}]
_data_result = {"_result_positive":_result_positive/(_result_positive+_result_negative),"_result_negative":_result_negative/(_result_positive+_result_negative)}
'''
jsondate = {'_result_positive':_result_positive / (_result_positive + _result_negative),
'_result_negative':_result_negative / (_result_positive + _result_negative),
'_result_positive_len':positive.__len__(),
'_result_negative_len':negative.__len__()}
return Response( # return的时候需要通过response返回数据并且将callback一并返回给客户端，这样才能请求成功。
"%s(%s);" % (jsonp_callback, json.dumps({'ok': True, 'data': jsondate})),
mimetype="text/javascript"
)
