新增@RepeatSubmit注解，防止重复提交
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RuoYi
parent
bcee37b84b
commit
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@ -1,9 +1,12 @@
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package com.ruoyi.framework.config;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
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import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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import com.ruoyi.common.constant.Constants;
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import com.ruoyi.framework.interceptor.RepeatSubmitInterceptor;
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/**
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* 通用配置
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@ -13,6 +16,9 @@ import com.ruoyi.common.constant.Constants;
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@Configuration
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public class ResourcesConfig implements WebMvcConfigurer
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{
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@Autowired
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private RepeatSubmitInterceptor repeatSubmitInterceptor;
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@Override
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public void addResourceHandlers(ResourceHandlerRegistry registry)
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{
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@ -23,4 +29,13 @@ public class ResourcesConfig implements WebMvcConfigurer
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registry.addResourceHandler("swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
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registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
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}
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/**
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* 自定义拦截规则
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*/
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@Override
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public void addInterceptors(InterceptorRegistry registry)
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{
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registry.addInterceptor(repeatSubmitInterceptor).addPathPatterns("/**");
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}
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}
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@ -0,0 +1,55 @@
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package com.ruoyi.framework.interceptor;
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import java.lang.reflect.Method;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.springframework.stereotype.Component;
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import org.springframework.web.method.HandlerMethod;
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import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
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import com.alibaba.fastjson.JSONObject;
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import com.ruoyi.common.utils.ServletUtils;
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import com.ruoyi.framework.interceptor.annotation.RepeatSubmit;
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import com.ruoyi.framework.web.domain.AjaxResult;
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/**
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* 防止重复提交拦截器
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*
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* @author ruoyi
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*/
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@Component
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public abstract class RepeatSubmitInterceptor extends HandlerInterceptorAdapter
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{
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception
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{
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if (handler instanceof HandlerMethod)
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{
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HandlerMethod handlerMethod = (HandlerMethod) handler;
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Method method = handlerMethod.getMethod();
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RepeatSubmit annotation = method.getAnnotation(RepeatSubmit.class);
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if (annotation != null)
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{
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if (this.isRepeatSubmit(request))
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{
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AjaxResult ajaxResult = AjaxResult.error("不允许重复提交，请稍后再试");
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ServletUtils.renderString(response, JSONObject.toJSONString(ajaxResult));
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return false;
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}
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}
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return true;
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}
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else
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{
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return super.preHandle(request, response, handler);
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}
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}
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/**
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* 验证是否重复提交由子类实现具体的防重复提交的规则
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*
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* @param httpServletRequest
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* @return
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* @throws Exception
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*/
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public abstract boolean isRepeatSubmit(HttpServletRequest request);
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}
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@ -0,0 +1,23 @@
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package com.ruoyi.framework.interceptor.annotation;
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import java.lang.annotation.Documented;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Inherited;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* 自定义注解防止表单重复提交
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*
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* @author ruoyi
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*
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*/
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@Inherited
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@Target(ElementType.METHOD)
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@Retention(RetentionPolicy.RUNTIME)
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@Documented
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public @interface RepeatSubmit
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{
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}
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@ -0,0 +1,94 @@
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package com.ruoyi.framework.interceptor.impl;
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import java.util.HashMap;
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import java.util.Map;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpSession;
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import org.springframework.stereotype.Component;
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import com.alibaba.fastjson.JSONObject;
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import com.ruoyi.framework.interceptor.RepeatSubmitInterceptor;
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/**
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* 判断请求url和数据是否和上一次相同，
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* 如果和上次相同，则是重复提交表单。 有效时间为10秒内。
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*
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* @author ruoyi
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*/
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@Component
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public class SameUrlDataInterceptor extends RepeatSubmitInterceptor
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{
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public final String REPEAT_PARAMS = "repeatParams";
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public final String REPEAT_TIME = "repeatTime";
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public final String SESSION_REPEAT_KEY = "repeatData";
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/**
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* 间隔时间，单位:秒 默认10秒
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*
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* 两次相同参数的请求，如果间隔时间大于该参数，系统不会认定为重复提交的数据
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*/
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private int intervalTime = 10;
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public void setIntervalTime(int intervalTime)
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{
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this.intervalTime = intervalTime;
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}
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@SuppressWarnings("unchecked")
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@Override
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public boolean isRepeatSubmit(HttpServletRequest request)
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{
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// 本次参数及系统时间
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String nowParams = JSONObject.toJSONString(request.getParameterMap());
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Map<String, Object> nowDataMap = new HashMap<String, Object>();
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nowDataMap.put(REPEAT_PARAMS, nowParams);
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nowDataMap.put(REPEAT_TIME, System.currentTimeMillis());
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// 请求地址（作为存放session的key值）
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String url = request.getRequestURI();
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HttpSession session = request.getSession();
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Object sessionObj = session.getAttribute(SESSION_REPEAT_KEY);
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if (sessionObj != null)
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{
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Map<String, Object> sessionMap = (Map<String, Object>) sessionObj;
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if (sessionMap.containsKey(url))
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{
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Map<String, Object> preDataMap = (Map<String, Object>) sessionMap.get(url);
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if (compareParams(nowDataMap, preDataMap) && compareTime(nowDataMap, preDataMap))
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{
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return true;
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}
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}
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}
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Map<String, Object> sessionMap = new HashMap<String, Object>();
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sessionMap.put(url, nowDataMap);
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session.setAttribute(SESSION_REPEAT_KEY, sessionMap);
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return false;
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}
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/**
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* 判断参数是否相同
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*/
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private boolean compareParams(Map<String, Object> nowMap, Map<String, Object> preMap)
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{
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String nowParams = (String) nowMap.get(REPEAT_PARAMS);
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String preParams = (String) preMap.get(REPEAT_PARAMS);
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return nowParams.equals(preParams);
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}
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/**
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* 判断两次间隔时间
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*/
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private boolean compareTime(Map<String, Object> nowMap, Map<String, Object> preMap)
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{
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long time1 = (Long) nowMap.get(REPEAT_TIME);
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long time2 = (Long) preMap.get(REPEAT_TIME);
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if ((time1 - time2) < (this.intervalTime * 1000))
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{
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return true;
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}
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return false;
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}
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}
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