关于验证报错的问题一个很基础的问题

目的是用 ApplicationResources.properties 定义的信息在JSP下显示错误信息
是一个登录界面
用strurs做的
首相想问下ApplicationResources.properties 是不是放在WEB-INF 文件夹下的
我用的是Eclipse
下面是部分代码

解决方案 »

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Action文件
public ActionForward execute(ActionMapping arg0, ActionForm arg1,
HttpServletRequest arg2, HttpServletResponse arg3) throws Exception {
// TODO Auto-generated method stub
ActionFrm userinfo = (ActionFrm) arg1;
DAO dao = new DAO();
ActionFrm af = dao.checkLogin(userinfo.getUserid());
boolean flag = true;
ActionErrors errors =new ActionErrors();

String p = "password error";
String u = "userid error";
if(af!=null)
{
if(af.getPsw().equals(userinfo.getPsw()))
flag=true;
else
{
flag=false;
errors.add("psw",new ActionMessage("error.password.required","pp"));
this.saveErrors(arg2,errors);
}

}
else
{
flag=false;
errors.add("name",new ActionMessage("error.username.required","uu"));
this.saveErrors(arg2,errors);

}

if(flag)
return arg0.findForward("loginOK");
else
{
return arg0.findForward("loginFail");
}

}
JSP代码
<%@page contentType="text/html; charset=GBK"%>
<%@taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@taglib uri="/WEB-INF/struts-logic.tld" prefix="logic"%>
<%@taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
<html>
<head>
<title>login</title>
</head>
<body>
<center>login</center>
<html:form action="actuser">
<table>
   <tr>
      <td>userid:</td>
      <td><html:text property="userid"/></td>
   </tr>
   <font color=red> <html:errors property="name"/></font><br></br>
   <tr>
      <td>password:</td>
      <td><html:password property="psw"/></td>
   </t>
   <font color=red> <html:errors property="psw"/></font><br></br>
      <td></td>
      <td><input type="submit" value="登录"></td>
   </tr>
</table>

</html:form>
</body>
</html>
ApplicationResources.properties 放在src下就可以了。你在struts-config.xml文件里配置一下：
<message-resources [color=#993366]parameter="com.struts.ApplicationResources" />[/color]parameter的值就按照ApplicationResources.properties的包路径的形式写就可以了。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
  <form-beans>
    <form-bean name="actionfrm" type="cn.edu.zucc.text.ActionFrm"/>
    </form-beans>
  <global-forwards>
    <forward contextRelative="true" name="loginOK" path="/main.jsp"/>
    <forward contextRelative="true" name="loginFail" path="/index.jsp"/>
  </global-forwards>
  <action-mappings>
    <action input="/index.jsp" validate="true" name="actionfrm" parameter="method" path="/actuser" scope="request" type="cn.edu.zucc.text.ActUser">

    </action>
  </action-mappings>
  <message-resources parameter="cn.edu.zucc.text.ApplicationResources"/>
</struts-config>
这是 struts-config文件
还是不行
HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: org.apache.struts.action.ActionMessage
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause java.lang.ClassCastException: org.apache.struts.action.ActionMessage
org.apache.struts.taglib.html.ErrorsTag.doStartTag(ErrorsTag.java:215)
org.apache.jsp.index_jsp._jspx_meth_html_errors_0(index_jsp.java:176)
org.apache.jsp.index_jsp._jspx_meth_html_form_0(index_jsp.java:120)
org.apache.jsp.index_jsp._jspService(index_jsp.java:79)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.26 logs.
就是这样的，放在src下就可以，再在struts-config.xml里注册下就可以了
在Action里应该这么写：
ActionMessages errors = new ActionMessages();//注意是ActionMessages而不是ActionErrors
errors.add("",new ActionMessage("xxx"));
this.saveErrors(request,errors);
....
this.saveErrors(request,errors);  会报错的
参数不符合