servlet获取表单数据

朱雀 2022-05-27 12:08 138阅读 0赞

<body>
        <center>
        	<form action="<%=request.getContextPath() %>/userServlet" method="post">
        		<table>
        			<tr>
        				<td>用户名:</td>
        				<td><input type="text" name="username"></td>
        			</tr>
        			<tr>
        				<td>密码:</td>
        				<td><input type="password" name="password"></td>
        			</tr>
        			<tr>
        				<td></td>
        				<td><input type="submit" value="登录"></td>
        			</tr>
        		</table>
        	</form>
        </center>
      </body>

userServlet关键代码

public class userServlet extends HttpServlet {
    	private static final long serialVersionUID = 1L;
           
        /**
         * @see HttpServlet#HttpServlet()
         */
        public userServlet() {
            super();
            // TODO Auto-generated constructor stub
        }
    
    	/**
    	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
    	 */
    	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    		// TODO Auto-generated method stub
    		doPost(request,response);
    	}
    
    	/**
    	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
    	 */
    	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    		// TODO Auto-generated method stub
    		request.setCharacterEncoding("utf-8");//处理表单中文乱码
    		user u=new user();
    		String username,password;
    		try{
    			username=request.getParameter("username");
    			password=request.getParameter("password");
    			u.setUsername(username);
    			u.setPassword(password);
    			request.getSession().setAttribute("use", u);
    			request.getRequestDispatcher("/Success.jsp").forward(request, response);
    		}catch(Exception e){
    			e.printStackTrace();
    		}
    	}
    
    }

Success.jsp关键代码