struts中的一个异常

jsp页面中的代码是：<body>
   <div id="vehicleIndex" align="center">
   <div id="img"><img src="Images/head.jpg"/></div>
   <div>
   <a href="vehicleManage.jsp">车辆管理</a>  <a href="addVehicle.jsp">添加车辆</a>  <a href="vehicleList.jsp">车辆列表</a> 
   <a href="returnVehicle.jsp">还车</a>  <a href="lendVehicle.jsp">租车</a>  <a href="sumVehicleInfo.jsp">分类统计</a><br>
   </div>
  </div>
  <form action="Vehicle.do" method="post">
  <h2 align="center">添加车辆</h2>
  <div align="center">
  <div>类别:<select name="type" length="5">
  <option value="大卡车">大卡车</option>
  <option value="小轿车">小轿车</option>
  <option value="面包车">面包车</option>
  <option value="大客车">大客车</option>
  <option value="出租车">出租车</option>
  </select>
  </div>
  <div>        车型:<input type="text" name="model" size="20"/></div>
  <div>        车牌:<input type="text" name="no" size="20"/></div>
  <div>        价格:<input type="text" name="price" size="20"/></div>
  <div><input type="submit" value="提交" size="20"/></div>
  </div>
  </form>
  </body>

我配置的DynaForm没有问题啊吗？
怎么总是出现上面那个异常？我以为是我的doule类型的错了，但是我改后还是出错？

是不是你用了DispatchAction而没有配置parameter参数

我VehicleAction中的代码是：
package y2.ssh.vehicle.web.action;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;
import org.apache.struts.actions.DispatchAction;import y2.ssh.vechile.biz.impl.VehicleBizImpl;
import y2.ssh.vehicle.biz.VehicleBiz;
import y2.ssh.vehicle.entity.Vehicle;/**
* MyEclipse Struts
* Creation date: 10-30-2008
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class VehicleAction extends DispatchAction {
/*
* Generated Methods
*/ /**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
private VehicleBiz biz=new VehicleBizImpl();
public ActionForward doAdd(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
DynaActionForm vehicleForm=(DynaActionForm)form;
Vehicle vehicle=new Vehicle();
vehicle.setCategory(vehicleForm.getString("category"));
vehicle.setModel(vehicleForm.getString("model"));
vehicle.setNo(vehicleForm.getString("no"));
vehicle.setPrice((Double.parseDouble(vehicleForm.get("price").toString())));
    biz.addVehicle(vehicle);
    request.setAttribute("vehicle", vehicle);
    return  mapping.findForward("vehicleInfo");
}
}
提交不到这个Action中就出现异常

怎么配置参数？我用的就是DispatchAction没有配置参数，怎么配置参数？

struts中的中文乱码怎么处理？

有两种方式：一是写过滤器，还有就是写个类来继承struts里的一个类来处理，既然你在学struts，那就讨论第二种。
写个类继承自RequestProcessor。package com.struts;import java.io.IOException;import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.RequestProcessor;
public class Myrequest extends RequestProcessor()
{
@Override
public void process(HttpServletRequest arg0, HttpServletResponse arg1)
throws IOException, ServletException {
arg0.setCharacterEncoding("utf-8");
super.process(arg0, arg1);
}
}
然后再struts.config.xml里配置下
<controller processorClass="com.struts.MyRequest"></controller>
注意配置信息要紧贴配在<message-resources />上面，而不能把顺序打乱了

调试易

struts中的一个异常

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