Cookie common operations class in Java (Action cookie in spring)

Note: There is no quick way to use key under a cookie, only to facilitate the loop to fetch.

ImportJava.util.HashMap;ImportJava.util.Map;ImportJavax.servlet.http.Cookie;Importjavax.servlet.http.HttpServletRequest;ImportJavax.servlet.http.HttpServletResponse; Public classCookietool {/*** Add a cookie * *@paramResponse *@paramname Key *@paramValue Value *@paramMaxAge Effective Time*/     Public Static voidAddcookie (httpservletresponse response, string name, String value,intMaxAge) {Cookie Cookie=NewCookie (name, value); Cookie.setpath ("/");        Cookie.setmaxage (MaxAge); Cookie.setdomain (". Jsoft.me");//Cookie ScopeResponse.addcookie (cookie); }    /*** Retrieve all cookies encapsulated into the map collection * *@paramRequest *@return     */     Public StaticMap<string, string>Readcookiemap (HttpServletRequest request) {Map<string, string> cookiemap =NewHashmap<string, string>(); Cookie[] Cookies=request.getcookies (); if(NULL!=cookies) {             for(Cookie cookie:cookies) {cookiemap.put (Cookie.getname (), Cookie.getvalue ()); }        }        returnCookiemap; }    /*** Get value by key * *@paramRequest *@paramname Key *@returnValue*/     Public Staticstring Getcookievaluebyname (HttpServletRequest request, string name) {Map<string, string> cookiemap =Readcookiemap (Request); if(Cookiemap.containskey (name)) {String Cookievalue=(String) cookiemap.get (name); returnCookievalue; } Else {            return NULL; }    }}

Used in the controller of Spring MVC:

Using the Cookievalue annotation map request parameter in spring MVC, @CookieValue has three properties, as follows:

1. The parameter name of the value request argument;
2. Required the parameter is required, the default is true (required), when set to be required, if there is no incoming parameters, error;
3. DefaultValue set the default value of the request parameter;

Reference:

Http://www.cnblogs.com/jun-ma/p/5679459.html

http://blog.csdn.net/u011848397/article/details/52201339

Http://www.ibloger.net/article/33.html (the above content is transferred from this article)

Cookie common operations class in Java (Action cookie in spring)