.netl发送邮件

.net1.1中,web应该可以使用System.Web.Mail发送邮件。.net2.0后.net framework中添加了一个System.Net.Mail的命名空间,用于发送邮件。
使用System.Web.Mail发送邮件
public class SendMail
{
public static void Send(string mailFrom, string maiFromlAccount,string mailFromPwd, string mailSmtpServer, IList<string> mailTo, IList<string> mailCC, IList<string> mailBCC, string mailTitle, string mailContent, IList<MailAttachment> mailAttachments,System.Text.Encoding encoding,MailFormat format)
{
MailMessage message = new MailMessage();
//定义SMTP邮件服务器需要身份认证
message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
//认证的用户名
message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", maiFromlAccount);
//认证密码
message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", mailFromPwd);
string sMailTo = "";
foreach (string s in mailTo)
{
sMailTo += s + ";";
}
if (sMailTo == "")
{
throw new Exception("接收邮件不可以为空");
}
sMailTo = sMailTo.TrimEnd(';');
if (mailFrom.Trim() == "")
{
throw new Exception("发送邮件不可以为空");
}
message.From = mailFrom;
message.To = sMailTo;
if (mailCC.Count > 0)
{
string sMailCC = "";
foreach (string s in mailCC)
{
sMailCC += s + ";";
}
sMailCC = sMailCC.TrimEnd(';');
message.Cc = sMailCC;
}
if (mailBCC.Count > 0)
{
string sMailBCC = "";
foreach (string s in mailBCC)
{
sMailBCC += s + ";";
}
sMailBCC = sMailBCC.TrimEnd(';');
message.Bcc = sMailBCC;
}
message.Subject = mailTitle;
message.Body = mailContent;
message.BodyEncoding = encoding; //邮件编码
message.BodyFormat = format; //内容格式 html还是text
message.Priority = MailPriority.High; //设置发送的优先集
//附件
foreach (MailAttachment att in mailAttachments)
{
message.Attachments.Add(att);
}
SmtpMail.SmtpServer = mailSmtpServer;
SmtpMail.Send(message);
}

public static void SendText(string mailFrom, string maiFromlAccount, string mailFromPwd, string mailSmtpServer, IList<string> mailTo, IList<string> mailCC, IList<string> mailBCC, string mailTitle, string mailContent)
{
List<MailAttachment> attList = new List<MailAttachment>();
Send(mailFrom, maiFromlAccount, mailFromPwd, mailSmtpServer, mailTo, mailCC, mailBCC, mailTitle, mailContent, attList, Encoding.UTF8, MailFormat.Text);
}

public static void SendHTML(string mailFrom, string maiFromlAccount, string mailFromPwd, string mailSmtpServer, IList<string> mailTo, IList<string> mailCC, IList<string> mailBCC, string mailTitle, string mailContent)
{
List<MailAttachment> attList = new List<MailAttachment>();
Send(mailFrom, maiFromlAccount, mailFromPwd, mailSmtpServer, mailTo, mailCC, mailBCC, mailTitle, mailContent, attList, Encoding.UTF8, MailFormat.Html);
}
}

使用System.Net.Mail发送邮件
public class NetSendMail
{
public static void MailSend(string mailFrom, string maiFromlAccount, string mailFromPwd, string mailSmtpServer, IList<string> mailTo, IList<string> mailCC, IList<string> mailBCC, string mailTitle, string mailContent, IList<string> mailAttachments, System.Text.Encoding encoding, bool isBodyHtml)
{
MailMessage message = new MailMessage();
if (mailFrom.Trim() == "")
{
throw new Exception("发送邮件不可以为空");
}
message.From = new MailAddress(mailFrom);
if (mailTo.Count <= 0)
{
throw new Exception("接收邮件不可以为空");
}
foreach (string s in mailTo)
{
message.To.Add(new MailAddress(s));
}
if (mailCC.Count > 0)
{
foreach (string s in mailCC)
{
message.CC.Add(new MailAddress(s));
}
}
if (mailBCC.Count > 0)
{
foreach (string s in mailBCC)
{
message.Bcc.Add(new MailAddress(s));
}
}
message.Subject = mailTitle;
message.Body = mailContent;
message.BodyEncoding = encoding; //邮件编码
message.IsBodyHtml = isBodyHtml; //内容格式是否是html
message.Priority = MailPriority.High; //设置发送的优先集
//附件
foreach (string att in mailAttachments)
{
message.Attachments.Add(new Attachment(att));
}
SmtpClient smtpClient = new SmtpClient();
smtpClient.Host = mailSmtpServer;
smtpClient.Credentials = new NetworkCredential(maiFromlAccount, mailFromPwd);
smtpClient.Timeout = 1000;
smtpClient.EnableSsl = false; //不使用ssl连接
smtpClient.Send(message);
}

public static void MailSendText(string mailFrom, string maiFromlAccount, string mailFromPwd, string mailSmtpServer, IList<string> mailTo, IList<string> mailCC, IList<string> mailBCC, string mailTitle, string mailContent)
{
List<string> attList = new List<string>();
MailSend(mailFrom, maiFromlAccount, mailFromPwd, mailSmtpServer, mailTo, mailCC, mailBCC, mailTitle, mailContent, attList, Encoding.UTF8, false);
}

public static void MailSendHTML(string mailFrom, string maiFromlAccount, string mailFromPwd, string mailSmtpServer, IList<string> mailTo, IList<string> mailCC, IList<string> mailBCC, string mailTitle, string mailContent)
{
List<string> attList = new List<string>();
MailSend(mailFrom, maiFromlAccount, mailFromPwd, mailSmtpServer, mailTo, mailCC, mailBCC, mailTitle, mailContent, attList, Encoding.UTF8, true);
}
内容概要:本文详细介绍了手工艺品销售系统的设计与实现,旨在通过计算机技术提升手工艺品销售的信息管理水平。该系统基于Java语言和Spring Boot框架构建,使用MySQL数据库进行数据管理。系统主要功能包括手工艺品管理、评价管理、订单管理、购物车管理和求购管理等,涵盖了管理员、商家和用户三类用户群体的具体操作需求。文中还详细描述了系统的开发技术、设计原则、功能模块、数据库设计及其实现过程,并通过多种测试确保系统的稳定性和功能性。此外,文章讨论了系统的优点,如高效的信息处理、友好的操作界面和较低的误操作率,但也指出了系统在数据存储和代码优化方面存在的不足。 适合人群:对电子商务系统设计感兴趣的计算机专业学生及从业者,特别是那些希望深入了解基于Java和Spring Boot框架的Web应用程序开发的人士。 使用场景及目标:①适用于希望开发或改进手工艺品销售平台的企业和个人;②为学习如何设计和实现高效、易用的电子商务系统提供参考案例;③帮助理解如何利用现代Web开发技术和数据库管理工具提升业务运营效率。 其他说明:尽管系统具备许多优点,但在数据冗余和代码复用性方面仍有改进空间。未来的工作将集中在优化数据库结构和精简代码以提高系统性能和维护性。同时,本文还强调了在项目开发过程中持续学习和解决问题的重要性,感谢了导师和其他相关人员的支持与帮助。
Looking for: ['mfix==25.1.2', 'mfix-solver=25.1.2'] warning libmamba Cache file "/home/ps/miniforge3/pkgs/cache/497deca9.json" was modified by another program warning libmamba Cache file "/home/ps/miniforge3/pkgs/cache/09cdf8bf.json" was modified by another program warning libmamba Could not parse mod/etag header warning libmamba Could not parse mod/etag header warning libmamba Could not parse mod/etag header warning libmamba Could not parse mod/etag header warning libmamba Cache file "/home/ps/miniforge3/pkgs/cache/47929eba.json" was modified by another program warning libmamba Cache file "/home/ps/miniforge3/pkgs/cache/3e39a7aa.json" was modified by another program warning libmamba Cache file "/home/ps/miniforge3/pkgs/cache/2ce54b42.json" was modified by another program warning libmamba Cache file "/home/ps/miniforge3/pkgs/cache/4ea078d6.json" was modified by another program https://mirrors.ustc.edu.cn/anaconda/cloud/menpo.. https://mfix.netl.doe.gov/s3/09d9e2e6/acf3d1bd18.. https://mirrors.ustc.edu.cn/anaconda/cloud/bioco.. https://mfix.netl.doe.gov/s3/09d9e2e6/acf3d1bd18.. https://mirrors.ustc.edu.cn/anaconda/pkgs/main/n.. https://mirrors.aliyun.com/pypi/simple/linux-64 0.4s https://mirrors.ustc.edu.cn/anaconda/pkgs/main/l.. 17.6s https://mirrors.ustc.edu.cn/anaconda/cloud/msys2.. https://mirrors.aliyun.com/pypi/simple/noarch 0.6s Multi-download failed. Reason: Transfer finalized, status: 404 [https://mirrors.aliyun.com/pypi/simple/noarch/repodata.json] 2318 bytes # >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<< Traceback (most recent call last): File "/home/ps/miniforge3/lib/python3.10/site-packages/conda/exceptions.py", line 1132, in __call__ return func(*args, **kwargs) File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 941, in exception_converter raise e File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 934, in exception_converter exit_code = _wrapped_main(*args, **kwargs) File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 892, in _wrapped_main result = do_call(parsed_args, p) File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 758, in do_call exit_code = create(args, parser) File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 632, in create return install(args, parser, "create") File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 499, in install index = load_channels(pool, channels, repos) File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/utils.py", line 129, in load_channels index = get_index( File "/home/ps/miniforge3/lib/python3.10/site-packages/mamba/utils.py", line 110, in get_index is_downloaded = dlist.download(api.MAMBA_DOWNLOAD_FAILFAST) RuntimeError: Multi-download failed. Reason: Transfer finalized, status: 404 [https://mirrors.aliyun.com/pypi/simple/noarch/repodata.json] 2318 bytes `$ /home/ps/miniforge3/bin/mamba create -n mfix-25.1.2 mfix==25.1.2 mfix-solver=25.1.2 -c conda-forge -c https://mfix.netl.doe.gov/s3/09d9e2e6/acf3d1bd18d1e8d1637bad33e96216d6//conda/dist` environment variables: CIO_TEST=<not set> CONDA_DEFAULT_ENV=base CONDA_EXE=/home/ps/miniforge3/bin/conda CONDA_PREFIX=/home/ps/miniforge3 CONDA_PROMPT_MODIFIER=(base) CONDA_PYTHON_EXE=/home/ps/miniforge3/bin/python CONDA_ROOT=/home/ps/miniforge3 CONDA_SHLVL=1 CURL_CA_BUNDLE=<not set> LD_LIBRARY_PATH=/usr/local/cuda-12.0/lib64: LD_PRELOAD=<not set> PATH=/home/ps/miniforge3/bin:/home/ps/miniforge3/condabin:/home/ps/.local/b in:/home/ps/bin:/usr/local/cuda- 12.0/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin REQUESTS_CA_BUNDLE=<not set> SSL_CERT_FILE=<not set> WINDOWPATH=2 active environment : base active env location : /home/ps/miniforge3 shell level : 1 user config file : /home/ps/.condarc populated config files : /home/ps/miniforge3/.condarc /home/ps/.condarc conda version : 23.3.1 conda-build version : not installed python version : 3.10.12.final.0 virtual packages : __archspec=1=x86_64 __cuda=12.2=0 __glibc=2.28=0 __linux=4.18.0=0 __unix=0=0 base environment : /home/ps/miniforge3 (writable) conda av data dir : /home/ps/miniforge3/etc/conda conda av metadata url : None channel URLs : https://conda.anaconda.org/conda-forge/linux-64 https://conda.anaconda.org/conda-forge/noarch https://mfix.netl.doe.gov/s3/09d9e2e6/acf3d1bd18d1e8d1637bad33e96216d6//conda/dist/linux-64 https://mfix.netl.doe.gov/s3/09d9e2e6/acf3d1bd18d1e8d1637bad33e96216d6//conda/dist/noarch http://pypi.douban.com/simple/linux-64 http://pypi.douban.com/simple/noarch https://mirrors.aliyun.com/pypi/simple/linux-64 https://mirrors.aliyun.com/pypi/simple/noarch https://mirrors.ustc.edu.cn/anaconda/cloud/linux-64 https://mirrors.ustc.edu.cn/anaconda/cloud/noarch https://mirrors.ustc.edu.cn/anaconda/cloud/menpo/linux-64 https://mirrors.ustc.edu.cn/anaconda/cloud/menpo/noarch https://mirrors.ustc.edu.cn/anaconda/cloud/bioconda/linux-64 https://mirrors.ustc.edu.cn/anaconda/cloud/bioconda/noarch https://mirrors.ustc.edu.cn/anaconda/cloud/msys2/linux-64 https://mirrors.ustc.edu.cn/anaconda/cloud/msys2/noarch https://mirrors.ustc.edu.cn/anaconda/cloud/conda-forge/linux-64 https://mirrors.ustc.edu.cn/anaconda/cloud/conda-forge/noarch https://mirrors.ustc.edu.cn/anaconda/pkgs/free/linux-64 https://mirrors.ustc.edu.cn/anaconda/pkgs/free/noarch https://mirrors.ustc.edu.cn/anaconda/pkgs/main/linux-64 https://mirrors.ustc.edu.cn/anaconda/pkgs/main/noarch https://repo.anaconda.com/pkgs/main/linux-64 https://repo.anaconda.com/pkgs/main/noarch https://repo.anaconda.com/pkgs/r/linux-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /home/ps/miniforge3/pkgs /home/ps/.conda/pkgs envs directories : /home/ps/miniforge3/envs /home/ps/.conda/envs platform : linux-64 user-agent : conda/23.3.1 requests/2.31.0 CPython/3.10.12 Linux/4.18.0-348.el8.x86_64 centos/8.5.2111 glibc/2.28 UID:GID : 1000:1000 netrc file : None offline mode : False An unexpected error has occurred. Conda has prepared the above report.
07-18
<think>我们参考用户提供的引用资料,特别是引用[1]和引用[4]中关于mamba安装报错的解决方法。 用户的问题:使用mamba创建环境安装mfix时出现Multi-download failed和404错误。 分析: 1. 报错信息:Multi-download failed 和 404错误,这通常与网络问题或缓存有关。 2. 引用[1]中提到,使用mamba安装Prokka时出现类似错误,最终建议使用conda安装。 3. 引用[4]中提到,mamba安装失败可能是因为环境路径不在conda的默认搜索路径中,需要修改.condarc文件。 然而,用户的问题是关于安装mfix和mfix-solver,我们首先尝试以下步骤: 步骤1:清理mamba缓存并重试 步骤2:检查网络连接,特别是conda通道的设置 步骤3:如果mamba持续失败,考虑使用conda安装 步骤4:检查环境路径设置,确保环境创建在正确的位置 详细步骤: 1. 清理缓存: 运行命令:`mamba clean --all` 清除缓存,然后重试安装。 2. 检查通道和网络: 确保使用的通道(channels)正确,并且网络可以访问这些通道。可以尝试添加国内镜像源(如清华源、中科大源)以提高下载速度。 3. 使用conda代替mamba: 如果mamba持续失败,可以尝试使用conda命令安装。虽然conda可能慢一些,但稳定性更高。 4. 修改.condarc文件: 参考引用[4],检查环境路径设置,确保conda能够找到创建的环境。在.condarc文件中添加正确的环境路径。 具体操作: 方法一:使用mamba清理缓存后重试 ```bash mamba clean --all -y mamba create -n mfix_env mfix mfix-solver ``` 方法二:使用conda安装 ```bash conda create -n mfix_env mfix mfix-solver ``` 方法三:检查并修改.condarc文件 打开或创建~/.condarc文件,添加环境路径(根据引用[4]中的示例): ```yaml envs_dirs: - /path/to/your/anaconda3/envs # 替换为你的实际路径,如/home/user/anaconda3/envs - /user/.conda/envs - /user/anaconda3/envs/mamba/envs/ # 如果之前mamba创建的环境在这里,也要加上 ``` 注意:如果用户使用的是国内网络,建议添加国内镜像源到.condarc,例如: ```yaml channels: - defaults show_channel_urls: true default_channels: - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2 custom_channels: conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud pytorch-lts: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud ``` 然后再次尝试使用mamba或conda创建环境。 如果以上方法都不行,可以尝试手动安装: 1. 创建环境:`conda create -n mfix_env python=3.8` (指定一个合适的Python版本) 2. 激活环境:`conda activate mfix_env` 3. 尝试单独安装:`conda install -c conda-forge mfix mfix-solver` 注意:mfix和mfix-solver可能在conda-forge频道上,所以确保添加了conda-forge频道。 引用资料中,用户提到使用conda安装成功的情况(引用[1]),所以如果mamba不行,conda是可行的备选方案。 最后,如果用户遇到特定的404错误,可能是由于该版本的包在服务器上不存在,可以尝试指定其他版本。 总结:优先尝试清理缓存和修改镜像源,如果不行则使用conda安装,并检查环境路径设置。</think>### 解决 Mamba 安装 MFIX 时出现 Multi-download failed 和 404 错误 #### 问题原因分析 1. **网络问题**:404 错误表示安装包下载失败,通常由网络不稳定、镜像源配置错误或软件源服务器问题导致[^1][^4] 2. **缓存异常**:`file size doesn't match expectation` 表明本地缓存文件损坏或不完整[^1] 3. **环境路径冲突**:Mamba 创建的环境可能不在 Conda 默认搜索路径中[^4] 4. **软件源不可用**:特定版本的 MFIX 包可能已被移除或服务器暂时不可用 --- #### 解决方案(逐步操作) ##### 方法一:优先尝试 Conda 直接安装(推荐) ```bash # 创建新环境 conda create -n mfix_env python=3.9 # 激活环境 conda activate mfix_env # 安装 MFIX 套件 conda install -c conda-forge mfix mfix-solver ``` > **优势**:Conda 比 Mamba 更稳定,引用[1]和[3]均显示 Conda 能解决类似问题[^1][^3] ##### 方法二:修复 Mamba 环境 1. **清理缓存** ```bash mamba clean --all -y # 清除所有缓存 rm -rf ~/.mamba/pkgs # 手动删除缓存目录 ``` 2. **添加国内镜像源**(加速下载) ```bash conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/ conda config --set show_channel_urls yes ``` 3. **配置环境路径** 编辑 `~/.condarc` 文件,添加: ```yaml envs_dirs: - /your/conda/path/envs # 替换为实际路径 - ~/.conda/envs - /opt/anaconda3/envs # 典型路径示例 ``` > 参考引用[4]解决路径问题[^4] 4. **重试安装** ```bash mamba create -n mfix_env -c conda-forge mfix mfix-solver ``` ##### 方法三:手动安装(终极方案) 1. 从 [MFIX 官网](https://mfix.netl.doe.gov) 下载离线包 2. 创建环境后手动安装: ```bash conda activate mfix_env conda install --use-local /path/to/mfix-23.1.tar.bz2 ``` --- #### 预防措施 1. **网络检查**: ```bash ping repo.anaconda.com # 测试服务器连通性 ``` 2. **版本验证**: ```bash mamba search -c conda-forge mfix --info # 确认可用版本 ``` 3. **环境隔离**: ```bash micromamba create -n mfix_env # 使用更轻量级环境 ``` > 关键提示:若多次尝试失败,**优先使用 Conda 替代 Mamba**,多数用户反馈 Conda 更稳定(参考引用[1]和[3][^1][^3]) ---
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