Servlet验证出现405错误，HTTP method POST is not supported by this URL

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Servlet验证出现405错误，HTTP method POST is not supported by this URL10

我找了很久确实没有找出错误！！看看错在哪儿行吗？
谢谢！！
我用Form表单提交：

    <form action="user_dao_servlet" method="post">
   用户名：  <input type="text" name="userName"/><br>
    密码：  <input type="password" name="userPassword"/><br>
    确认密码：  <input type="password" name="confirmPassword"/><br>
     邮箱：  <input type="text" name="userEmail"/><br>
    安全问题：  <input type="text" name="userQuestion"/><br>
        答案：  <input type="text" name="userAnswer"/><br>
    <input type="submit" value="提交"/>
    <input type="reset" value="重置"/> 
</form>

以下是我的Servlet代码：

public class UserDAOServlet extends HttpServlet {
	public class UserLoginServlet extends HttpServlet {
		public void doGet(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
			doPost(request, response);

	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
			request.setCharacterEncoding("utf-8");        //统一设置编码
			String page = "user_register.jsp";
	     	String code = request.getParameter("code");
			List<String> errors = new ArrayList<String>();
			// 验证码验证
			if (code == null || "".equals(code)) {      
				errors.add("验证码为空！");
			} else {
				String rand = (String) request.getSession().getAttribute("rand"); 
				if (!code.equalsIgnoreCase(rand)) {
					errors.add("验证码错误！！") ;
				}
			}
			//取出接受参数进行验证
			String userName = request.getParameter("userName");
			String userPassword = request.getParameter("userPassword");
			String confirmPassword = request.getParameter("confirmPassword");
			String userEmail = request.getParameter("userEmail");
			String userQuestion = request.getParameter("userQuestion");		
			String userAnswer = request.getParameter("userAnswer");		
			String userRealName = request.getParameter("userRealName");
			String tele = request.getParameter("tele");
			String address = request.getParameter("address");
			String sex = request.getParameter("sex");
			
			if(!(userPassword.equals(confirmPassword))){
				errors.add("两次输入密码不一样！");
			}
			if (userName == null || "".equals(userName)) {
				errors.add("用户名不能为空！");
			}
			if (userPassword == null || "".equals(userPassword)) {
				errors.add("密码不能为空！");
			}
			if(errors.size()==0){	         // 现在没有任何的错误信息
				User vo=new User();
				vo.setUserName(userName);
		    	vo.setUserPassword(new MD5Code().getMD5ofStr(userPassword)) ;
		    	vo.setAddress(address);
		    	vo.setSex(sex);
		    	vo.setTele(tele);
		    	vo.setUserQuestion(userQuestion);
		    	vo.setUserAnswer(userAnswer);
		    	vo.setUserEmail(userEmail);
		    	vo.setUserRealName(userRealName);
				try {
					if(DAOFactory.getIUserDAOInstance().doCreate(vo)){
						request.getSession().setAttribute("user", vo) ;	       // 现在保存对象
						request.setAttribute("userName", userName);
						page = "register_success.jsp" ;
					} else {
						errors.add("用户名或密码错误!");
					}
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
			request.setAttribute("errors", errors) ;
			request.getRequestDispatcher(page).forward(request, response);
			}

}
}

以下是在WEB.XML里面的配置：

<servlet>
<servlet-name>userDAO</servlet-name>
<servlet-class>org.mm.servlet.UserDAOServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>userDAO</servlet-name>
<url-pattern>/user_dao_servlet</url-pattern>
</servlet-mapping>

Servlet JavaEE

2012年9月19日 22:07

cfan1874
6
0 0 5

2个答案按时间排序按投票排序

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采纳的答案

我看到了
public class UserDAOServlet extends HttpServlet {
public class UserLoginServlet extends HttpServlet {
什么意思。。
按照你的web.xml中的
<servlet-class>org.mm.servlet.UserDAOServlet</servlet-class>
可是你写了2个
public class UserDAOServlet extends HttpServlet {
public class UserLoginServlet extends HttpServlet {
都继承了 HttpServlet 导致系统找不到他要用的doPost()方法
正确应该是
public class UserDAOServlet extends HttpServlet {
把public class UserLoginServlet extends HttpServlet { 删了。

2012年9月19日 22:49