struts2 - Why does jQuery function add an extra parameter to the request? -
i using following method send requests backend, whenever send request, adds parameter request "_", value begins by'1395703362318' , time re-send request, gets incremented 1.
the problem that, backend not expect parameter , throws exception, stating "_" parameter unknown.
$(function(){ $('#product').keyup(function(){ var size = $('#product').val().length; if(size < 1) $('#msg').text(""); }); $('#product').mouseup(function(){ var value = $('#product').val(); if(value != ""){ $.ajax({ url:"../getid?product="+value, type:'get' }).done(function (data){ $('#msg').text(data); }); } }); }); exception
info: 2014-03-25 10:38:15,034 - error [commonslogger.java:38] error setting expression '_' value ['1395704288009', ] - [unknown location] @ com.opensymphony.xwork2.ognl.ognlvaluestack.handleruntimeexception(ognlvaluestack.java:201) @ com.opensymphony.xwork2.ognl.ognlvaluestack.setvalue(ognlvaluestack.java:178) @ com.opensymphony.xwork2.ognl.ognlvaluestack.setparameter(ognlvaluestack.java:152) @ com.opensymphony.xwork2.interceptor.parametersinterceptor.setparameters(parametersinterceptor.java:329) @ com.opensymphony.xwork2.interceptor.parametersinterceptor.dointercept(parametersinterceptor.java:241) @ com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.parametersinterceptor.dointercept(parametersinterceptor.java:249) @ com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.staticparametersinterceptor.intercept(staticparametersinterceptor.java:191) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ org.apache.struts2.interceptor.multiselectinterceptor.intercept(multiselectinterceptor.java:73) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ org.apache.struts2.interceptor.checkboxinterceptor.intercept(checkboxinterceptor.java:91) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ org.apache.struts2.interceptor.fileuploadinterceptor.intercept(fileuploadinterceptor.java:252) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.modeldriveninterceptor.intercept(modeldriveninterceptor.java:100) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.scopedmodeldriveninterceptor.intercept(scopedmodeldriveninterceptor.java:141) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.chaininginterceptor.intercept(chaininginterceptor.java:145) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.prepareinterceptor.dointercept(prepareinterceptor.java:171) @ com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.i18ninterceptor.intercept(i18ninterceptor.java:176) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ org.apache.struts2.interceptor.servletconfiginterceptor.intercept(servletconfiginterceptor.java:164) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.aliasinterceptor.intercept(aliasinterceptor.java:193) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ com.opensymphony.xwork2.interceptor.exceptionmappinginterceptor.intercept(exceptionmappinginterceptor.java:187) @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:246) @ org.apache.struts2.impl.strutsactionproxy.execute(strutsactionproxy.java:54) @ org.apache.struts2.dispatcher.dispatcher.serviceaction(dispatcher.java:546) @ org.apache.struts2.dispatcher.ng.executeoperations.executeaction(executeoperations.java:77) @ org.apache.struts2.dispatcher.ng.filter.strutsprepareandexecutefilter.dofilter(strutsprepareandexecutefilter.java:91) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:256) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:214) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) @ org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) @ org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.rememberme.remembermeauthenticationfilter.dofilter(remembermeauthenticationfilter.java:139) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:154) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.www.basicauthenticationfilter.dofilter(basicauthenticationfilter.java:150) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:199) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:110) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.context.request.async.webasyncmanagerintegrationfilter.dofilterinternal(webasyncmanagerintegrationfilter.java:50) @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:108) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.session.concurrentsessionfilter.dofilter(concurrentsessionfilter.java:125) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) @ org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) @ org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:344) @ org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:261) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:256) @ org.apache.catalina.core.applicationfilterchain.dofil info: ter(applicationfilterchain.java:214) @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:316) @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:160) @ org.apache.catalina.core.standardpipeline.doinvoke(standardpipeline.java:734) @ org.apache.catalina.core.standardpipeline.invoke(standardpipeline.java:673) @ com.sun.enterprise.web.webpipeline.invoke(webpipeline.java:99) @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:174) @ org.apache.catalina.connector.coyoteadapter.doservice(coyoteadapter.java:357) @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:260) @ com.sun.enterprise.v3.services.impl.containermapper.service(containermapper.java:188) @ org.glassfish.grizzly.http.server.httphandler.runservice(httphandler.java:191) @ org.glassfish.grizzly.http.server.httphandler.dohandle(httphandler.java:168) @ org.glassfish.grizzly.http.server.httpserverfilter.handleread(httpserverfilter.java:189) @ org.glassfish.grizzly.filterchain.executorresolver$9.execute(executorresolver.java:119) @ org.glassfish.grizzly.filterchain.defaultfilterchain.executefilter(defaultfilterchain.java:288) @ org.glassfish.grizzly.filterchain.defaultfilterchain.executechainpart(defaultfilterchain.java:206) @ org.glassfish.grizzly.filterchain.defaultfilterchain.execute(defaultfilterchain.java:136) @ org.glassfish.grizzly.filterchain.defaultfilterchain.process(defaultfilterchain.java:114) @ org.glassfish.grizzly.processorexecutor.execute(processorexecutor.java:77) @ org.glassfish.grizzly.nio.transport.tcpniotransport.fireioevent(tcpniotransport.java:838) @ org.glassfish.grizzly.strategies.abstractiostrategy.fireioevent(abstractiostrategy.java:113) @ org.glassfish.grizzly.strategies.workerthreadiostrategy.run0(workerthreadiostrategy.java:115) @ org.glassfish.grizzly.strategies.workerthreadiostrategy.access$100(workerthreadiostrategy.java:55) @ org.glassfish.grizzly.strategies.workerthreadiostrategy$workerthreadrunnable.run(workerthreadiostrategy.java:135) @ org.glassfish.grizzly.threadpool.abstractthreadpool$worker.dowork(abstractthreadpool.java:564) @ org.glassfish.grizzly.threadpool.abstractthreadpool$worker.run(abstractthreadpool.java:544) @ java.lang.thread.run(thread.java:722) caused by: no object in compoundroot has publicly accessible property named '_' (no setter found). - [unknown location] @ com.opensymphony.xwork2.ognl.accessor.compoundrootaccessor.setproperty(compoundrootaccessor.java:106) @ ognl.ognlruntime.setproperty(ognlruntime.java:2332) @ ognl.astproperty.setvaluebody(astproperty.java:127) @ ognl.simplenode.evaluatesetvaluebody(simplenode.java:220) @ ognl.simplenode.setvalue(simplenode.java:301) @ ognl.ognl.setvalue(ognl.java:737) @ com.opensymphony.xwork2.ognl.ognlutil.setvalue(ognlutil.java:224) @ com.opensymphony.xwork2.ognl.ognlvaluestack.trysetvalue(ognlvaluestack.java:187) @ com.opensymphony.xwork2.ognl.ognlvaluestack.setvalue(ognlvaluestack.java:174) ... 100 more
the _ parameter being set random string avoid caching of request. this default behavior of request jquery ajax requests. if want avoid it, set cache param true.
$.ajax({ ... cache: true ... }); http://api.jquery.com/jquery.ajax
update: isn't default behavor non-script or jsonp requests, means using $.ajaxsetup somewhere overriding default.
Comments
Post a Comment