我有一个登录表单(名称和密码),我希望当用户输入他的名字和密码时,要执行一个ajax代码并调用一个进行验证的servlet,它会产生结果(成功或失败)
这是我的表单的代码:
<form action="" method="GET" id="login_frm">
<label ><b>Username: </b></label>
<input class="field" type="text" id="log" value="" size="23" />
<label ><b>Password:</b></label>
<input class="field" type="password" id="pwd" size="23" />
<input type="submit" value="" class="button_login" />
</form>
这是ajax代码:
$(document).ready(function(){
$("#login_frm").submit(function(){
$.ajax({
type: 'GET',
url: '/RecommandationDefault/connexion?user='+$('#log').val()+'&pwd='+$('#pwd').val(),
success: function(msg){
alert(msg);
}
});
});
........
}
当我点击登录按钮,servlet执行:out.write(“ok”)时,我简化了servlet的处理,就像命运一样,我做了一个ajax警报,以回应验证通信的发生。
我的servlet代码(connexion.java)
@WebServlet(name = "connexion")
public class connexion extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
} finally {
out.close();
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
System.out.println("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^");
out.write("ok");
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
问题:Consul出现了^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^^ ^ 但是没有触发警报。
感谢
答案 0 :(得分:0)
您没有从servlet返回任何内容。尝试使用alert中的任何硬编码值而不是msg
success: function(msg){
alert("Done");
}