特殊字符转译工具类

public class QueryParserUtils {

    public static String escape(String s) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < s.length(); ++i) {
            char c = s.charAt(i);
            if (c == '\\' || c == '+' || c == '-' || c == '!' || c == '(' || c == ')' || c == ':' || c == '^' || c == '[' || c == ']' || c == '"' || c == '{' || c == '}' || c == '~' || c == '*' || c == '?' || c == '|' || c == '&' || c == '/' || c == '%' || c == '_') {
                sb.append('\\');
            }

            sb.append(c);
        }

        return sb.toString();
    }
}