org.apache.catalina.core.StandardWrapper?400报错

哎！没人理啊！我还是自己搞定吧！在url前边加上standardSubmit:true,就可以跳转啦！######把配置文件贴出来, 你这是 在做什么? 详细描述清楚######

楼主啊，你这是急着赶公交呢还是急着交差啊？是不是做不出来就要被老板辞退啊，要不然怎么这么急。。

什么都不说，错误信息一贴就问。我把我大腿伸出来给你看，问“你猜猜我同桌今天打麻将赢了多少钱”。。

你回答啊。。简直莫名其妙

AddQuestionsServlet里的内容粘过来，重启MyEclipse就OK啦！不过谢谢你们的关注！

不过又出现一个新问题：center_left.jsp，内容是Ext的一个form表单，

url:'servlet/AddQueServlet',

<script type="text/javascript">
Ext.require([ '*' ]);
Ext.onReady(function() {//onReady()函数在页面注册多个函数，依次执行
 Ext.QuickTips.init();
 Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));
				// NOTE: This is an example showing simple state management. During development,
				// it is generally best to disable state management as dynamically-generated ids
				// can change across page loads, leading to unpredictable results.  The developer
				// should ensure that stable state ids are set for stateful components in real apps.
				Ext.state.Manager.setProvider(Ext
						.create('Ext.state.CookieProvider'));
				
			//表单组合控件在中间部分的左侧
			var form = new Ext.form.FormPanel({
					labelAlign : 'right',
					autoScroll : true,
					labelWidth : 50,
					width : 600,
					// title: 'form',
					frame : true,
					url:'servlet/AddQueServlet',
					items : [ {
						layout : 'form',
						items : [ {
							//columnWidth:.7,
							xtype : 'fieldset',
							layout : 'form',
							checkboxToggle : true,//折叠fieldset
							title : '文字输入',
							autoHeight : true,
							defaults : {
								width : 400
							},
							defaultType : 'textfield',
							items : [ {
								fieldLabel : '题目',
								name : 'head',
								allowBlank : false
							}, {

								xtype : 'htmleditor',
								fieldLabel : '题目备注及说明',
								id : 'editor',
								anchor : '98%',
							    name : 'des',
							    fontFamilies: ["宋体", "隶书", "黑体","Times New Roman"]
							   
							}, {
								xtype : 'hidden',
								name : 'hidden'
							} ]
						}, {
							//columnWidth:.3,

							xtype : 'fieldset',
							checkboxToggle : true,
							title : '数据验证',
							autoHeight : true,
							defaultType : 'checkbox',
							hideLabels : true,
							layout : 'column',
							name:'checkValue',
							//style: 'margin-left:10px;',
							//bodyStyle: 'margin-left:20px;',
							items : [ {
								boxLabel : '必填',
								columnWidth : .125,
								name : 'check',
								inputValue : '1',
								checked : true,
								width : 'auto'
							}, {
								boxLabel : '手机号码',
								columnWidth : .125,
								name : 'check',
								inputValue : '2',
								//checked: true,
								width : 'auto'
							}, {
								boxLabel : '邮编',
								columnWidth : .125,
								name : 'check',
								inputValue : '3',
								width : 'auto'
							}, {
								boxLabel : '身份证号',
								columnWidth : .125,
								name : 'check',
								inputValue : '4',
								width : 'auto'
							}, {
								boxLabel : '日期',
								columnWidth : .125,
								name : 'check',
								inputValue : '5',
								width : 'auto'
							}, {
								boxLabel : 'Email',
								columnWidth : .125,
								name : 'check',
								inputValue : '6',
								width : 'auto'
							}, {
								boxLabel : '必答题',
								columnWidth : .25,
								name : 'check',
								inputValue : '7',
								width : 'auto'
							} ]
						}, {
							xtype : 'fieldset',
							checkboxToggle : true,
							title : '选项(每行一个)',
							autoHeight : true,
							defaultType : 'textarea',
							hideLabels : true,
							layout:'form',
							//style: 'margin-left:10px;',
							//bodyStyle: 'margin-left:20px;',
							items : [ {
								xtype:'textfield',
								fieldLabel : '输入选项个数',
								name : 'number'
							},{
								width : 400,
								grow : true,
								name : 'options',
								//allowBlank : false,
								emptyText : '输入选项',
								maxLength : 10,
								minLength : 2
							} ]
						}, {
							xtype : 'fieldset',
							//checkboxToggle:true,
							title : '选项排列',
							autoHeight : true,
						    defaultType : 'radio',
							hideLabels : true,
							layout : 'column',
							//style: 'margin-left:10px;',
							//bodyStyle: 'margin-left:20px;',
							items : [ {

								boxLabel : '横向',
								name : 'rank',
								inputValue : '1',
								//checked: true,
								width : 'auto'
							}, {

								boxLabel : '竖向',
								name : 'rank',
								inputValue : '2',
								checked : true,
								width : 'auto'
							} ]
						} ]

					} ], buttons: [{
			            text: '保存',
			            handler:function(){
			            	form.getForm().submit();
			            }
			        },{
			            text: '读取'
			        },{
			            text: '取消'
			        }]
				});
			var viewport = Ext.create('Ext.Viewport',
					{
				       id : 'Center_left',
					   layout : 'fit',
					   autoScroll : true,
					items : [form]
			});
			form.render("form");
			});
	

			</script>

public class AddQueServlet extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
				response.setContentType("text/html");
				doPost(request, response);// 调用doPost方法
			}

			public void doPost(HttpServletRequest request, HttpServletResponse response)
					throws ServletException, IOException {
				request.setCharacterEncoding("utf-8");
				response.setContentType("text/html;utf-8");
				response.setCharacterEncoding("utf-8");
				// 获得表单提交的参数
				String head=request.getParameter("head");
				String des=request.getParameter("des");
				int number=0;
				if(request.getParameter("number")!=""){
					number= Integer.parseInt(request.getParameter("number"));
				}
				
				//System.out.print(number+"###################");
				String body=request.getParameter("options");
				String checkValue[]= request.getParameterValues("check");
				int rank=Integer.parseInt(request.getParameter("rank"));
				//System.out.print(rank+"###################");
				HttpSession session=request.getSession();
				
				
				//int qt_id = Integer.parseInt((String)session.getAttribute("qt_id"));// 获得所选问题类型的ID
				//System.out.print(qt_id);
				int qt_id =1;
				QuestionType qType = new QuestionType();

				
				QuestionTypeDao questionType = new QuestionTypeDaoImpl();
				qType = questionType.findQueTypeById(qt_id);
				Questions question = new Questions();

				question.setQ_head(head);
				question.setQ_body(body);
				question.setQ_type(qType);
				question.setQ_number(number);
				

				
				QuestionsDao questionsDao = new QuestionsDaoImpl();
				questionsDao.add(question);// 调用实现类的的添加方法

					response.sendRedirect("../DesignQuestions/Center_right.jsp");// 重定向到显示全部的Servlet中
					}
}

问题就是：Center_right.jsp无法显示，在表单里点击保存后，页面不跳转，也不报错！大侠们，说说答案吧

<servlet-mapping>
    <servlet-name>AddQueServlet</servlet-name>
    <url-pattern>/servlet/AddQueServlet</url-pattern>
  </servlet-mapping>

我觉得没什么问题啊？求教