webwork字符串字节长度字段验证器

 

在class主目录里的validatros.xml加入

 

   

 

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在Action同目录中加入验证文件,具体配置就不多讲了

ActionName-functionName-validator.xml

(你要验让的Action类名-方法名-validator.xml)

 

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package com.skyon.mica.util.web.webwork.validator;

import java.io.UnsupportedEncodingException;

import com.opensymphony.xwork.validator.ValidationException;
import com.opensymphony.xwork.validator.validators.FieldValidatorSupport;

/**
 * 字符串字节长度字段验证器
 * @author andy
 * @version $Revision: 1.3 $
 *
 */
public class StringByteLengthFieldValidator extends FieldValidatorSupport {

 private boolean doTrim = true;

 private int maxLength = -1;

 private int minLength = -1;

 private String charsetName = "UTF-8";

 public void setMaxLength(int maxLength) {
  this.maxLength = maxLength;
 }

 public int getMaxLength() {
  return maxLength;
 }

 public void setMinLength(int minLength) {
  this.minLength = minLength;
 }

 public int getMinLength() {
  return minLength;
 }

 public void setTrim(boolean trim) {
  doTrim = trim;
 }

 public boolean getTrim() {
  return doTrim;
 }

 /**
  * @return 返回 charsetName。
  */
 public String getCharsetName() {
  return charsetName;
 }

 /**
  * @param charsetName 要设置的 charsetName。
  */
 public void setCharsetName(String charsetName) {
  this.charsetName = charsetName;
 }

 public void validate(Object object) throws ValidationException {
  String fieldName = getFieldName();
  String val = (String) getFieldValue(fieldName, object);

  if (val == null) {
   // use a required validator for these
   return;
  }
  if (doTrim) {
   val = val.trim();
  }

  try {
   if ((minLength > -1)
     && (val.getBytes(charsetName).length < minLength)) {
    addFieldError(fieldName, object);
   } else if ((maxLength > -1)
     && (val.getBytes(charsetName).length > maxLength)) {
    addFieldError(fieldName, object);
   }
  } catch (UnsupportedEncodingException e) {
   throw new ValidationException(e.getMessage());
  }
 }
}