【原创随笔】MySQL查询特殊字符转义

package com.jeecms.cms.dao.assist.impl;

import org.apache.commons.lang.IllegalClassException;

public class SqlEscape {
/**
     * 支持String,Integer,Character,Float,Double
     * @param obj
     * @return
*/
public static String escape(Object obj){
if (obj instanceof String||obj instanceof Integer || obj instanceof Character || obj instanceof Float || obj instanceof Double) {
            String text = obj.toString();
            StringBuffer sbf=new StringBuffer();
for (int i = 0; i < text.toCharArray().length; i++) {
                sbf.append("\\").append(text.charAt(i));
            }
return sbf.toString();
        }else{
throw new IllegalClassException(String.class,obj);
        }
    }
}

新手，大神勿喷，有好的意见请回复！