public Blog LoadStar(string blogUrl,string imgPath)
{
Blog blog = new Blog();
GC.Collect();
ServicePointManager.DefaultConnectionLimit = 200;
HttpWebRequest request = HttpWebRequestFactory.CreateSimpleRequest(blogUrl);
WebProxy proxy = new WebProxy("127.0.0.1", 1080);
request.Proxy = proxy;
try
{
WebResponse response = request.GetResponse();
Stream stream = response.GetResponseStream();
string result = "";
using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("utf-8")))
{
result = reader.ReadToEnd();
}
var document = new JumonyParser().Parse(result);
blog.Name = document.FindFirst(".ProfileHeaderCard-nameLink").InnerHtml();
blog.Description = document.FindFirst(".ProfileHeaderCard-bio").InnerHtml();
string imgUrl = document.FindFirst(".ProfileAvatar-image").Attribute("src").Value();
request = HttpWebRequestFactory.CreateSimpleRequest(imgUrl);
HttpWebResponse imageResponse = (HttpWebResponse)request.GetResponse(); //反馈请求
Stream srr = imageResponse.GetResponseStream();
string path = imgPath + blog.Name.ToString() + ".jpg";
FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write);
//造一个字节类型的数组来存放图片
byte[] buff = new byte[512];
int c = 0;
while ((c = srr.Read(buff, 0, buff.Length)) > 0)
{
fs.Write(buff, 0, c);
}
srr.Close();
}
catch (Exception e)
{
throw e;
}
return blog;
}
public void CreateStar(CreateUpdateStarInput input)
{
Logger.Info("添加明星的输入信息（CreateUpdateStarInput对象）: " + input);
var star = new Star
{
Name = input.Name,
Nickname = input.Nickname,
ChineseName = input.ChineseName,
Gender = input.Gender,
Description = input.Description,
IsBlocked = false,//添加明星默认不屏蔽
CreationTime = DateTime.Now,
LastUpdateTime = DateTime.Now,
};
//添加该明星对应的首个博客（一个明星对应多个博客，在创建明星时只能添加一个博客，创建完之后才可以增加更多）
_starRepository.Insert(star);
_unitOfWorkManager.Current.SaveChanges();
var blog = new Blog
{
Url = input.BlogUrl,
CreationTime = DateTime.Now,
LastUpdateTime = DateTime.Now,
StarId = star.Id,
};
blog.ResolveUrl(input.BlogUrl);
var sameBlog = _blogRepository.GetAll().Where(b => b.Name == blog.Name).Where(b => b.Provider == blog.Provider);
if (sameBlog.Count() > 0)
{
//保证微博地址在数据库中的唯一性，爬虫就不会重复下载博文
//抛出异常后上面_starRepository.Insert(star)的操作会被回滚
throw new UserFriendlyException("你添加的微博" + input.BlogUrl + "已经存在，不能重复添加");
}
else
{
_blogRepository.Insert(blog);
}
}
public void CreateUpdateBlog(CreateUpdateBlogInput input)
{
//System.Web.HttpContext.Current.Server.MapPath(
var star = _starRepository.Get(input.starId);
if (star == null)
{
throw new UserFriendlyException("错误的明星ID！");
}
if(input.BlogUrls.Count()<3 || input.BlogIds.Count()<3)
throw new UserFriendlyException("地址信息至少要有3条！");
for (int i = 0; i < 3; i++)
{
var url = input.BlogUrls.ElementAt(i);
var id = input.BlogIds.ElementAt(i);
if (string.IsNullOrEmpty(url))
{
if (id != -1)
{
//把已有的URL置为空字符串，这意味着管理者想删除该微博信息
_blogRepository.Delete(id);
}
}
else
{
var blog = new Blog { Url = url };
blog.ResolveUrl(url);
if (!string.IsNullOrEmpty(blog.Name) && blog.Provider != BlogProvider.UNDEFINED)
{
var sameBlog = _blogRepository.GetAll().Where(b => b.StarId != input.starId && b.Name == blog.Name && b.Provider == blog.Provider);
if (sameBlog.Count() > 0)
{
throw new UserFriendlyException("你添加的微博" + url + "已经存在，不能重复添加");
}
}
if (id != -1)
{
//编辑微博
var existBlog = _blogRepository.Get(id);
if (existBlog == null)
{
throw new UserFriendlyException("错误的微博ID！");
}
existBlog.LastUpdateTime = DateTime.Now;
existBlog.Url = blog.Url;
existBlog.Name = blog.Name;
existBlog.Provider = blog.Provider;
existBlog.ProviderName = blog.ProviderName;
_blogRepository.Update(existBlog);
}
else
{
//添加微博
blog.CreationTime = DateTime.Now;
blog.LastUpdateTime = DateTime.Now;
blog.StarId = input.starId;
blog.Description = "";
_blogRepository.Insert(blog);
}
}
}
}
