java 小程序 课程设计 java

java坦克大战 课程设计 String str_to=request.getParameter("to"); String str_subject=new String(request.getParameter("subject").getBytes("ISO-8859-1")); String str_content=new String(request.getParameter("content").getBytes("ISO-8859-1")); Properties props=new Properties(); props.put("mail.smtp.host","s