项目中经常会有防表单重复提交的需要 google了一下spring mvc的做法 大概看了下觉得稍微有点麻烦就自己写了一个 。
import java.util.UUID;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.ui.ModelMap;
import com.yuitat.common.lang.util.CookieHelper;
/**
*
* @Filename TokenUtil.java
*
* @Description 令牌工具类
*
* @Version 1.0
*
* @Author huqing
*
* @Email [email protected]
*
* @History
*<li>Author: huqing</li>
*<li>Date: 2012-3-28</li>
*<li>Version: 1.0</li>
*<li>Content: create</li>
*
*/
public class TokenUtil {
private static final Logger logger = LoggerFactory.getLogger(TokenUtil.class);
public static final String COOKIE_TOKEN = "COOKIE_TOKEN";
public static final String TOKEN = "token";
/**
* 生成令牌
*
* @param response
* @param domain 哉名
*/
public static void generate(HttpServletResponse response, ModelMap modelMap) {
String uuid = UUID.randomUUID().toString();
Cookie cookie = new Cookie(COOKIE_TOKEN, uuid);
cookie.setPath("/");
CookieHelper.addCookies(response, cookie, 30 * 60);
modelMap.put(TOKEN, uuid);
}
/**
* 验证令牌
*
* @param request
* @param response
* @param domain
* @return
*/
public static boolean verification(HttpServletRequest request, HttpServletResponse response) {
Object object = request.getParameter(TOKEN);
if (null == object) {
return false;
}
String token = object.toString();
String cookieToken = CookieHelper.getCookieByName(request, COOKIE_TOKEN);
if (token.equals(cookieToken)) {
clean(response);
return true;
} else {
logger.error("表单提交token异常 [token = " + token + ", cookieToken =" + cookieToken + "]");
return false;
}
}
/**
* 清除令牌
*
* @param response
* @param domain 哉名
*/
private static void clean(HttpServletResponse response) {
Cookie cookie = new Cookie(COOKIE_TOKEN, null);
cookie.setPath("/");
CookieHelper.removeCookie(response, cookie, COOKIE_TOKEN);
}
}