原理：在去某个页面直接生成一个随机数（这里使用的是UUID）并放入session中，用户提交表单时将这个随机数传入服务端与session中的值进行比较，如果不不存在或不相等，则认为是重复提交；如果相等则不是重复提交。实现技术：采用springmvc的拦截器统一处理下面实现（五步）第一步：package com.xxx.utils.anti_resubmit;import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;/*** 防止重复提交用* @author wsc* 2016年12月5日*/@Target(ElementType.METHOD)//如果用在类上，将此行注释@Retention(RetentionPolicy.RUNTIME)public @interface Token {boolean save() default false;  boolean remove() default false;}第二步：拦截器package com.xxx.inteceptors;import java.lang.reflect.Method;import java.util.UUID;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.method.HandlerMethod;import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;import com.xxx.annotation.anti_resubmit.Token;/*** 防止重复提交* @author wsc* 2016年12月5日*/public class TokenInterceptor extends HandlerInterceptorAdapter {private static final String TOKEN_NAME = "token";@Overridepublic boolean preHandle(HttpServletRequest request,HttpServletResponse response, Object handler) throws Exception {if(handler instanceof HandlerMethod){HandlerMethod handlerMethod = (HandlerMethod) handler;Method method = handlerMethod.getMethod();Token annotation = method.getAnnotation(Token.class);if(annotation != null){boolean need2SaveSession = annotation.save();if(need2SaveSession){request.getSession(false).setAttribute("token", UUID.randomUUID().toString());}boolean need2RemoveSession = annotation.remove();if(need2RemoveSession){if(isRepeatSubmit(request)){return false;}request.getSession(false).removeAttribute("token");}}return true;}else{return super.preHandle(request, response, handler);}}/**检查是否是重复提交（为空，不相等）*/private boolean isRepeatSubmit(HttpServletRequest request) {String serverToken = (String) request.getSession(false).getAttribute(TOKEN_NAME);//服务端if(serverToken == null){return true;}String clientToken = request.getParameter(TOKEN_NAME);//客户端if(clientToken == null){return true;}if(!serverToken.equals(clientToken)){return true;}return false;}}第三步：springmvc配置文件(拦截器)<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"><property name="interceptors"><list><!-- <ref bean="wechatLoginInterceptor"/> --><ref bean="tokenInteceptor"/></list></property></bean><bean id="tokenInteceptor" class="com.xxx.inteceptors.TokenInterceptor"/>第四步：controller中使用@RequestMapping("/add.jspf")@Token(save=true)public String add() {//省略return TPL_BASE + "index";}@RequestMapping("/save.jspf")@Token(remove=true)public void save() {//省略}第五步：页面<input type="text" name="token" value="${token}"/>