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

解决方案 »

  1.   

    你是不是struts需要的几个jar文件和tbl文件没有放到正确的位置?
      

  2.   

    是不是你的validator-rules.xml中DOCTYPE的书写有问题啊<!DOCTYPE form-validation PUBLIC
              "-//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
      

  3.   

    <!DOCTYPE form-validation PUBLIC
              "-//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>