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分享html中select下拉菜单的值无法传给servelt
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<form action="http://localhost:8080/Test/myservelt" method="post">
<br>
name:<input type="text" name="name"><br>
zodiac:<select name=“zodiac_sign”>
<option value="1">Aries 3.21-4.19</option>
<option value="2">Taurus 4.20-5.20</option>
<option value="3">Gemini 5.21-6.21</option>
<option value="4">Cancer 6.22-7.22</option>
<option value="5">Leo 7.23-8.22</option>
<option value="6">Virgo 8.23-9.22</option>
<option value="7">Libra 9.23-10.23</option>
<option value="8">Scorpio 10.24-11.22</option>
<option value="9">Sagittarius 11.23-12.21</option>
<option value="10">Capricorn 12.22-1.19</option>
<option value="11">Aquarius 1.20-2.18</option>
<option value="12">Pisces 2.19-3.20</option>
</select><br>
gender:<input type="radio" name="gender" value="male">male
<input type="radio" name="gender" value="female">female
<input type="submit" value="login">
</form>
</body>
</html>
public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException{
String sign = request.getParameter("zodiac_sign");
String userName = request.getParameter("name");
String gender = request.getParameter("gender");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html><body>Hello "+userName+sign+"<br>");
out.println("</body></html>");
out.close();
}其他值的获取正常，只有select 下拉菜单的值为null值
初学者，求教原因
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