selenium配合phantomjs实现爬虫功能，并把抓取的数据写入excel

# -*- coding: UTF-8 -*-
‘‘‘
Created on 2016年5月13日

@author: csxie
‘‘‘
import datetime
from Base import BasePage
import ExcelOperation as excel
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support.expected_conditions import text_to_be_present_in_element
import unittest
class JobLog(BasePage):
    url=""#目标url
    def setUp(self):
        BasePage.setUP(self)
    def tearDown(self):
        BasePage.tearDown(self)
        
              
    def test_querysql(self):
        """
        查询到符合条件的信息并写入excel
        """
        driver=self.driver 
        driver.get(self.url)
        ‘‘‘
        设置参数
        start:起始日期
        end:截止日期
        user:查询人员                
        ‘‘‘
        end=datetime.date.today()
        start=end+datetime.timedelta(days=-6)
        user=None
        #起始日期        
        txtStart=driver.find_element_by_id("ctl01_txtSelectDateFrom")
        txtStart.clear()
        txtStart.send_keys(start)
        #截止日期
        txtEnd=driver.find_element_by_id("ctl01_txtSelectDateTo")
        txtEnd.clear()
        txtEnd.send_keys(end)
        #查询人员
        if(user!=None):
            txtuser=driver.find_element_by_id("ctl01_txtUser")
            txtuser.clear()
            txtuser.send_keys(user)
        #查询按钮
        btnQueryInfo=driver.find_element_by_id("ctl01_btnQueryInfo")
        btnQueryInfo.click()
        #总页数
        totalPages=int(driver.find_element_by_id("ctl01_uc_CommonPager_lb_TotalPages").text)
        i=1
        while(i<=totalPages):
            #table的xpath
            listTable=self.getTableData(".//*[@id=‘ctl01__wrLogList_gvlist‘]",colNO=9,loop=i)
            #当前页数
            currentPage=int(driver.find_element_by_id("ctl01_uc_CommonPager_lb_PageNum").text)
            if(currentPage==1):
                excel.save_to_excel_newsheet(listTable,excelPath=‘joblog.xls‘)
            else:
                excel.save_to_excel_oldsheet(listTable,excelPath=‘joblog.xls‘)
            if(i!=totalPages):
                #下一页按钮
                driver.find_element_by_id("ctl01_uc_CommonPager_NextPage").click()
                WebDriverWait(driver,8).until(text_to_be_present_in_element((‘id‘,‘ctl01_uc_CommonPager_lb_PageNum‘),str(i+1)))
            i=i+1
            
            
    def getTableData(self,value,colTag=‘td‘,colNO=None,loop=None):
        ‘‘‘
        获取表格数据                        
        colNO:存在合并行时，强制指定表格列数                
        ‘‘‘
        driver=self.driver
        table=driver.find_element(by="xpath",value=value)                        
        rows=table.find_elements(by="tag name",value="tr")#行集合
        maxrowCount=len(rows)#表格行数
            
        #如果colNO=None不为空，则用传进来的值作为列数
        if(colNO==None): 
            cols = table.find_elements(by="tag name",value="td");
            if(cols!=‘td‘):            
                cols = table.find_elements(by="tag name",value="th")                          
            maxcolCount=len(cols)/len(rows)#表格列数
        else:
            maxcolCount=colNO      
            
        lists = [[] for i in range(maxrowCount)]
        #print  "列数"+str(maxcolCount)        
        #print  "行数"+str(maxrowCount)
        i=1       
        while i<=maxrowCount:   
            j=1;#初始化列
            while j<=maxcolCount:
                try:
                    if(i==1):
                        try:
                            innerText=driver.find_element(by="xpath",value=value+"/tbody/tr["+str(i)+"]/"+colTag+"["+str(j)+"]").text
                        except:
                            colTag="th"
                            innerText=driver.find_element(by="xpath",value=value+"/tbody/tr["+str(i)+"]/"+colTag+"["+str(j)+"]").text
                    else:
                        colTag="td"            
                        if(j==3 or j==5):
                            innerText=driver.find_element(by="xpath",value=value+"/tbody/tr["+str(i)+"]/"+colTag+"["+str(j)+"]/a").get_attribute("title")
                        elif(j==8):
                            innerText=driver.find_element(by="xpath",value=value+"/tbody/tr["+str(i)+"]/"+colTag+"["+str(j)+"]").text
                            innerText=float(innerText.replace("h", ""))
                        else:
                            innerText=driver.find_element(by="xpath",value=value+"/tbody/tr["+str(i)+"]/"+colTag+"["+str(j)+"]").text
                except:
                    innerText=""
                #print "第"+str(i)+"行,第"+str(j)+"列"+str(innerText)
                lists[i-1].append(innerText)                                           
                j+=1
            i+=1
        if(loop!=1):#不是第一次循环，列头不要            
            return lists[1:]
        return lists
    
if __name__ == "__main__":
    unittest.main()    

# -*- coding: UTF-8 -*-
‘‘‘
Created on 2016年5月18日

@author: csxie
‘‘‘
import xlwt
from xlrd import open_workbook
from xlutils.copy import copy
import os

def save_to_excel_newsheet(listTable,excelPath=r‘C:\demo.xls‘,sheetName=‘sheet1‘):
    if(isinstance(listTable,list)):        
        rowNO=len(listTable);
        if(rowNO==0):
            raise ValueError,u‘传入的是list是空的‘            
        colNO=len(listTable[0]);
        
        wkb = xlwt.Workbook()
        sheet = wkb.add_sheet(sheetName)        
        for i in range(rowNO):
            for j in range(colNO):
                #print listTable[i][j]
                #print str(i)+‘行‘+str(j)+‘列‘
                sheet.write(i,j,listTable[i][j])
        if(os.path.exists(excelPath)):
            os.remove(excelPath)       
        wkb.save(excelPath)
        return True
    else:
        raise TypeError,u‘传入的类型不是list‘
    
def save_to_excel_oldsheet(listTable,excelPath=r‘C:\demo.xls‘,sheetName=‘sheet1‘):
    if(isinstance(listTable,list)):
        rowNO=len(listTable); 
        if(rowNO==0):
            raise ValueError,u‘传入的是list是空的‘                
        colNO=len(listTable[0]);
        rb = open_workbook(excelPath)
        sheet_index=rb.sheet_names().index(sheetName)
        old_rows=rb.sheet_by_name(sheetName).nrows#已存在的excel中数据行数
        
        wkb = copy(rb)        
        sheet = wkb.get_sheet(sheet_index)        
        for i in range(rowNO):
            for j in range(colNO):
                sheet.write(i+old_rows,j,listTable[i][j])
                #print str(i)+‘行‘+str(j)+‘列‘
        wkb.save(excelPath)
        return True
    else:
        raise TypeError,u‘传入的类型不是list‘
        

# -*- coding: UTF-8 -*-
from selenium import webdriver
import unittest

class BasePage(unittest.TestCase):      
    def setUP(self):
        self.driver= webdriver.PhantomJS(executable_path="phantomjs.exe")
        #self.driver.set_window_size(1400, 1000)
        #self.driver.implicitly_wait(1)
        self.verificationErrors = []
        
    def tearDown(self):
        self.driver.quit()
        #self.driver.close()
        self.assertEqual([], self.verificationErrors)