Servlet过滤表单text中的代码

public String filterHtml(String value)

{

value = value.replaceAll("&","&");
value = value.replaceAll("<","&lt;");
value = value.replaceAll(">","&gt;");
value = value.replaceAll(" ","&nbsp;");
value = value.replaceAll("'","&#39;");
value = value.replaceAll("/"","&quot;");
value = value.replaceAll("'","<br>");

return value;

}