帮你友情UP一下,我很少用struts自带的验证,而采用javascript与struts结合验证(需要对struts进行稍微扩展一下,主要是TAG),效果不错,代码干净,又可以省很多事情,速度挺快,现成的JS验证可以在网上找一下“我南海人”的作品,通用表单验证,不妨考虑一下。但从异常看来,是不是validator-rules.xml这里有错误呢
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"-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN"
"http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd">这是我用的
"-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.0//EN"
"http://jakarta.apache.org/commons/dtds/validator_1_0.dtd"><form-validation> <global> <validator name="required"
classname="org.apache.struts.validator.FieldChecks"
method="validateRequired"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionErrors,
javax.servlet.http.HttpServletRequest"
msg="errors.required"> <javascript><![CDATA[
function validateRequired(form) {
var isValid = true;
var focusField = null;
var i = 0;
var fields = new Array();
oRequired = new required();
for (x in oRequired) {
var field = form[oRequired[x][0]];
if (field.type == 'text' ||
field.type == 'textarea' ||
field.type == 'file' ||
field.type == 'select-one' ||
field.type == 'radio' ||
field.type == 'password') {
var value = '';
// get field's value
if (field.type == "select-one") {
var si = field.selectedIndex;
if (si >= 0) {
value = field.options[si].value;
}
} else {
value = field.value;
}
if (trim(value).length == 0) {
if (i == 0) {
focusField = field;
}
fields[i++] = oRequired[x][1];
isValid = false;
}
}
}
if (fields.length > 0) {
focusField.focus();
alert(fields.join('\n'));
}
return isValid;
}
// Trim whitespace from left and right sides of s.
function trim(s) {
return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
}
]]>
</javascript> </validator> <validator name="requiredif"
classname="org.apache.struts.validator.FieldChecks"
method="validateRequiredIf"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionErrors,
org.apache.commons.validator.Validator,
javax.servlet.http.HttpServletRequest"
msg="errors.required">
</validator> <validator name="minlength"
classname="org.apache.struts.validator.FieldChecks"
method="validateMinLength"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionErrors,
javax.servlet.http.HttpServletRequest"
depends=""
msg="errors.minlength"> <javascript><![CDATA[
function validateMinLength(form) {
var isValid = true;
var focusField = null;
var i = 0;
var fields = new Array();
oMinLength = new minlength();
for (x in oMinLength) {
var field = form[oMinLength[x][0]];
if (field.type == 'text' ||
field.type == 'textarea') {
var iMin = parseInt(oMinLength[x][2]("minlength"));
if ((trim(field.value).length > 0) && (field.value.length < iMin)) {
if (i == 0) {
focusField = field;
}
fields[i++] = oMinLength[x][1];
isValid = false;
}
}
}
if (fields.length > 0) {
focusField.focus();
alert(fields.join('\n'));
}
return isValid;
}]]>
</javascript> </validator>
<validator name="maxlength"
classname="org.apache.struts.validator.FieldChecks"
method="validateMaxLength"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionErrors,
javax.servlet.http.HttpServletRequest"
depends=""
msg="errors.maxlength"> <javascript><![CDATA[
function validateMaxLength(form) {
var isValid = true;
var focusField = null;
var i = 0;
var fields = new Array();
oMaxLength = new maxlength();
for (x in oMaxLength) {
var field = form[oMaxLength[x][0]];
if (field.type == 'text' ||
field.type == 'textarea') {
var iMax = parseInt(oMaxLength[x][2]("maxlength"));
if (field.value.length > iMax) {
if (i == 0) {
focusField = field;
}
fields[i++] = oMaxLength[x][1];
isValid = false;
}
}
}
if (fields.length > 0) {
focusField.focus();
alert(fields.join('\n'));
}
return isValid;
}]]>
</javascript> </validator>