问ESAPI getValidInput方法的使用

EN

validator.getValidInput("toAddress", it.next(), "Email", Email.MAX_ADDRESS_SIZE, true)

/**
     * Returns canonicalized and validated input as a String. Invalid input will generate a descriptive ValidationException,
     * and input that is clearly an attack will generate a descriptive IntrusionException.
     *
     * @param context
     *      A descriptive name of the parameter that you are validating (e.g., LoginPage_UsernameField). This value is used by any logging or error handling that is done with respect to the value passed in.
     * @param input
     *      The actual user input data to validate.
     * @param type
     *      The regular expression name that maps to the actual regular expression from "ESAPI.properties".
     * @param maxLength
     *      The maximum post-canonicalized String length allowed.
     * @param allowNull
     *      If allowNull is true then an input that is NULL or an empty string will be legal. If allowNull is false then NULL or an empty String will throw a ValidationException.
     *
     * @return The canonicalized user input.
     *
     * @throws ValidationException
     * @throws IntrusionException
     */

ESAPI.validator().getValidInput("Validationofinput", StringInput, "Onlycharacters",200, true);