struts validate

用struts的校验文件来前台校验的规则。

1：<html:javascript formname="informationIntegrationBaseForm"/>

2:validate.xml

<form name = "informationIntegrationBaseForm">
      <field property="baseInformation.name" depends="required, maxlength">
    <arg0 key="姓名" resource="false"/>
    <arg1 name="maxlength" key="${var:maxlength}" resource="false"/>
    <var>
      <var-name>maxlength</var-name>
      <var-value>30</var-value>
    </var>
   </field>

  </form>

3:页面提示效果的显示

  前后都去空格

function Jtrim(str)
{

        var i = 0;
        var len = str.length;
        if ( str == "" ) return( str );
        j = len -1;
        flagbegin = true;
        flagend = true;
        while (( flagbegin == true) && (i< len))
        {
           if ( str.charAt(i) == " " )
                {
                  i=i+1;
                  flagbegin=true;
                }
                else
                {
                        flagbegin=false;
                }
        }

        while  ((flagend== true) && (j>=0))
        {
            if (str.charAt(j)==" ")
                {
                        j=j-1;
                        flagend=true;
                }
                else
                {
                        flagend=false;
                }
        }

        if ( i > j ) return ("");

        trimstr = str.substring(i,j+1);
        return trimstr;
}