webwork字符串字节长度字段验证器

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









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