Question

我试图发送带附件的电子邮件，但它一直在说：

 Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Illegal character in opaque part at index 64: mailto:recipient@mailserver.com?subject=ThePDFFile&attachment=C:\Users\Rascal\AppData\Local\Temp\FreelancerList-16-12-2014_09-227568200505392670736.doc

Java代码：

Desktop desktop = Desktop.getDesktop(); 
        String message = "mailto:recipient@mailserver.com?subject=ThePDFFile&attachment=\""+path; 
        URLEncoder.encode(message, "UTF-8");
        URI uri = URI.create(message); 
        desktop.mail(uri);

结肠应该是吗？但为什么???

Answer 1

您正在调用URLEncoder.encode，但忽略了结果。我怀疑你正在努力实现这样的目标：

String encoded = URLEncoder.encode(message, "UTF-8");
URI uri = URI.create(encoded);

...虽然在那时你也会在mailto部分之后对冒号进行编码。我怀疑你真的想要这样的东西：

String query = "subject=ThePDFFile&attachment=\""+path;
String prefix = "mailto:recipient@mailserver.com?";
URI uri = URI.create(prefix + URLEncoder.encode(query, "UTF-8"));

甚至只编码值：

String query = "subject=" + URLEncoder.encode(subject, "UTF-8");
    + "&attachment=" + URLEncoder.encode(path, "UTF-8"));
URI uri = URI.create("mailto:recipient@mailserver.com?" + query);

...或者当然，分别从各个不同的部分创建URI。

Java mailto非法字符冒号？

1 个答案: