类型转换类，将字符串转换成其他基本类型

/***************************************
 *                                     *
 *  MCC: 客服系统                        *
 *                                     *
 *  所有版权(c) 上海若雅信息系统有限公司     *
 *                                     *
 ***************************************/
package com.roya.mcc.util;

import java.util.*;
import com.roya.mcc.core.exception.TypeConvertException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;

/**
 * 类型转换类，将字符串转换成其他基本类型
 *
 * @version <tt>Revision: 1.0</tt>
 * @author  <a href="mailto:[e-mail]">hongking</a>
 */
public class TypeConvertor {
 public static Integer string2Integer(String str) throws TypeConvertException{
  int value = -1;
  try{
   value = Integer.parseInt(str);
  }
  catch(Exception e){
   throw new TypeConvertException(e);
  }
  return new Integer(value);
 }
 
 public static Long string2Long(String str) throws TypeConvertException{
  long value = -1;
  try{
   value = Long.parseLong(str);
  }
  catch(Exception e){
   throw new TypeConvertException(e);
  }
  return new Long(value);
 }
 
 public static Float string2Float(String str) throws TypeConvertException{
  float value = 0;
  try{
   value = Float.parseFloat(str);
  }
  catch(Exception e){
   throw new TypeConvertException(e);
  }
  return new Float(value);
 }
 
 public static Date string2Date(String str,String format)  throws TypeConvertException{
  Date dt = null;
  try{
   if(format == null || "".equals(format)){
    DateFormat Format = DateFormat.getDateInstance();
    dt = Format.parse(str);
   }
   else{
    SimpleDateFormat sdf = new SimpleDateFormat(format);
    dt = sdf.parse(str);
   }
  }
  catch(Exception e){
   throw new TypeConvertException(e);
  }
  return dt;
 }
 
 public static Date string2Time(String str,String format)  throws TypeConvertException{
  Date dt = null;
  try{
   if(format == null || "".equals(format)){
    DateFormat Format = DateFormat.getTimeInstance();
    dt = Format.parse(str);
   }
   else{
    SimpleDateFormat sdf = new SimpleDateFormat(format);
    dt = sdf.parse(str);
   }
  }
  catch(Exception e){
   throw new TypeConvertException(e);
  }
  return dt;
 }

 public static Date string2DateTime(String str,String format)  throws TypeConvertException{
  Date dt = null;
  try{
   if(format == null || "".equals(format)){
    DateFormat Format = DateFormat.getDateTimeInstance();
    dt = Format.parse(str);
   }
   else{
    SimpleDateFormat sdf = new SimpleDateFormat(format);
    dt = sdf.parse(str);
   }
  }
  catch(Exception e){
   throw new TypeConvertException(e);
  }
  return dt;
 }

 
}