抓取时无法通过 jsoup 浏览 aspx 页面

本文关键字：jsoup 浏览 aspx 页面 抓取 | 更新日期: 2023-09-27 17:56:15

我正在jsoup中抓取一个url（http://nvsos.gov/sosentitysearch/CorpSearch.aspx），但是我能够抓取第一页，但无法导航到第二页。

这是代码片段

try
{
    string url = "http://nvsos.gov/sosentitysearch/CorpSearch.aspx";
    Connection.Response response = Jsoup.connect(url).method(Connection.Method.GET).execute();
    Document responseDocument = response.parse();
    Element eventValidation = responseDocument.select("input[name=__EVENTVALIDATION]").first();
    Element viewState = responseDocument.select("input[name=__VIEWSTATE]").first();
    //javascript:__doPostBack('ctl00$MainContent$objSearchGrid$dgCorpSearchResults$ctl54$ctl01','')
    response = Jsoup.connect(url)
    .data("__VIEWSTATE", viewState.attr("value"))
    .data("__EVENTVALIDATION", eventValidation.attr("value"))
    .data("ctl00$MainContent$txtSearchBox", "apple")  // <- search 
    .data("ctl00$MainContent$btnCorpSearch", "Search")
    .data("ctl00$MainContent$ddlCorpSortColumns", "m")
    .data("ctl00$MainContent$ddlCorpNumSortColumns", "m")
    .data("ctl00$MainContent$ddlOfficerSortColumns", "m")
    .data("ctl00$MainContent$ddlRASortColumns", "m")
    .data("ctl00$MainContent$ddlABNSortColumns", "m")
    .data("ctl00$MainContent$ddlABNSortColumns", "m")
    .data("ctl00$MainContent$rdlSortOrder", "d")
    .data("ctl00$MainContent$objSearchGrid$dgCorpSearchResults$ctl54$ctl01", "")
    .method(Connection.Method.POST)
    .followRedirects(true)
    .execute();
    Document document = response.parse(); //search results
    System.out.println(document);
}
catch (IOException e)
{
    e.printStackTrace();
}

这里.data("ctl00$MainContent$objSearchGrid$dgCorpSearchResults$ctl54$ctl01", "")导航到第二页，但它总是返回第一页。

抓取时无法通过 jsoup 浏览 aspx 页面

您可能缺少一些 cookie。尝试以下代码：

response = Jsoup.connect(url)
.cookies(response.cookies()) // Add cookies received when fetching the first page
.data("__VIEWSTATE", viewState.attr("value"))
.data("__EVENTVALIDATION", eventValidation.attr("value"))
.data("ctl00$MainContent$txtSearchBox", "apple")  // <- search 
.data("ctl00$MainContent$btnCorpSearch", "Search")
.data("ctl00$MainContent$ddlCorpSortColumns", "m")
.data("ctl00$MainContent$ddlCorpNumSortColumns", "m")
.data("ctl00$MainContent$ddlOfficerSortColumns", "m")
.data("ctl00$MainContent$ddlRASortColumns", "m")
.data("ctl00$MainContent$ddlABNSortColumns", "m")
.data("ctl00$MainContent$ddlABNSortColumns", "m")
.data("ctl00$MainContent$rdlSortOrder", "d")
.data("ctl00$MainContent$objSearchGrid$dgCorpSearchResults$ctl54$ctl01", "")
.method(Connection.Method.POST)
.followRedirects(true)
.execute();
相关文章：