Here we escape + sanitize any data sent to user, Use the OWASP Java HTML Sanitizer API to handle sanitizing, Use the OWASP Java Encoder API to handle HTML tag encoding (escaping), "You

user login

is owasp-user01", "", /* Create a sanitizing policy that only allow tag '

' and ''*/, /* Sanitize the output that will be sent to user*/, /* Here use MongoDB as target NoSQL DB */, /* First ensure that the input do no contains any special characters, //Avoid regexp this time in order to made validation code, /* Then perform query on database using API to build expression */, //Use API query builder to create call expression,