package cn.manmanda.api.util; import javax.servlet.http.HttpServletRequest;/** * 防止SQL注入工具类 * @author  * @date 2017/12/29 15:39 */public class AntiSQLInjectionUtil {//	public final static String regex = "#|/*|*/|'|%|--|and|or|not|use|insert|delete|update|select|count|group|union"//			+ "|create|drop|truncate|alter|grant|execute|exec|xp_cmdshell|call|declare|source|sql";		public final static String regex = "'|and|exec|execute|insert|select|delete|update|count|drop|*|%|chr|mid|master|truncate|" +                "char|declare|sitename|net user|xp_cmdshell|;|or|-|+|,|like'|and|exec|execute|insert|create|drop|" +                "table|from|grant|use|group_concat|column_name|" +                "information_schema.columns|table_schema|union|where|select|delete|update|order|by|count|*|" +                "chr|mid|master|truncate|char|declare|or|;|-|--|+|,|like|//|/|%|#";	/**	 * 把SQL关键字替换为空字符串	 * 	 * @param param	 * @return	 */	public static String filter(String param) {		if (param == null) {			return param;		}		return param.replaceAll("(?i)" + regex, ""); // (?i)不区分大小写替换	}	/**	 * 返回经过防注入处理的字符串	 * 	 * @param request	 * @param name	 * @return	 */	public static String getParameter(HttpServletRequest request, String name) {		return AntiSQLInjectionUtil.filter(request.getParameter(name));	}	public static void main(String[] args) {		// System.out.println(StringEscapeUtils.escapeSql("1' or '1' = '1; drop table test"));		// //1'' or ''1'' = ''1; drop table test		String str = "sElect * from test where id = 1 And name != 'sql' ";		String outStr = "";		for (int i = 0; i < 1000; i++) {			outStr = AntiSQLInjectionUtil.filter(str);		}		System.out.println(outStr);	}	}