这是前端控制台报错。
forwardNode.do?nodeName=carAdd:2979 Uncaught TypeError: Cannot set property 'value' of null
at saveNewPolicyTask (forwardNode.do?nodeName=carAdd:2979)
at HTMLInputElement.onclick (forwardNode.do?nodeName=carAdd:2741)
这是js走断点是有值的

然后走完就报错空值
你代码都没有 怎么知道你到底哪里的问题
完整的JS
function saveNewPolicyTask(){
var companyCode = document.getElementById("companyCode");//保险公司代码
var relationPolicyNo = document.getElementById("relationPolicyNo");//关联保单号
if(document.getElementById("relationNoId").style.display!='none'){//如果关联保单号显示
if(companyCode.value == '4000006' && relationPolicyNo.value != "" && null != relationPolicyNo.value){//到时候要改成4000006
//给4000006的关联保单号加上【.】是因为大地保险公司同时出单,商业险和交强险保单号一致
/* if(relationPolicyNo.value.substring(0,2)!='JQ'){
document.getElementById("relationPolicyNo").value="JQ".concat(trim(relationPolicyNo.value));
} */
var length = relationPolicyNo.value.length;
if(relationPolicyNo.value.substring(length-1,length)!='.'){
document.getElementById("relationPolicyNo").value=trim(relationPolicyNo.value).concat(".");
}
}
}
//将业务渠道放开,由用户决定输不输入代理人信息
//var businessNature = document.getElementById("businessNature");
//var handlerCode = document.getElementById("handlerCode");
//var channelAgentCode = document.getElementById("channelAgentCode");
var checkFlag = document.getElementById("checkFlag");
//var commissionRate = document.getElementById("commissionRate");
/*if(businessNature.value==1){
if(handlerCode.value==""){
alert("直属业务,业务员信息不能为空!");
return false;
}
} else {
if(channelAgentCode.value==""){
alert("代理业务,渠道代理人信息不能为空!");
return false;
}
if(commissionRate.value==""){
alert("代理业务,手续费支付比例不能为空!");
return false;
}
}*/
//流水号不校验 add by chenling 20140307
// if(checkFlag.value=="F" || checkFlag.value=="S"){
// var visaOrderNo = document.getElementById("visaOrderNo");
// var orderNo = $("#payRecDiv INPUT.orderNo").get(0);
// if(visaOrderNo.value || (orderNo && $.trim(orderNo.value) )){
// alert("请点击校验流水号按钮!!!");
// return false;
// }
// }
//add by zhangjinguo 20140418 begin 保存保单信息时添加缴费期数的校验
var indexElements = document.getElementsByName('prpJpayRecserialNo');
var indexLen = indexElements.length;
var planFeeTimes = parseInt(document.getElementById("planFeeTimes").value);
if(isNaN(planFeeTimes)) planFeeTimes = 0;
if(indexLen-1 > planFeeTimes){
alert("收付信息的记录数不能大于缴费期数!");
return false;
}
//add by zhangjinguo 20140418 end
// if($("input[name='prpSitemCar.frameNo']").val().length != 17){
// alert("请注意车架号长度");
// return false;
// }
if($("#itemKindDiv INPUT.serialNo").size() == 0){
alert("险别信息不能为空!");
return false;
}
var isChecks = document.getElementsByName("isCheckItems");
var jsonObj = [];
var jsonObjStr = "";
var baoeSum = 0.0;
//var jsonStr = "";
for(var i = 0 ; i < isChecks.length ; i++){
if(isChecks[i].checked){
var nar = document.getElementById(isChecks[i].id); //根据id得到当前节点 保费
var next = nar.parentNode;//获得checkBox的父节点
var baofeiya = getNextSibling(next,5);// 保费
var baoebaofeie = getNextSibling(next,4);
var transcode = getNextSibling(next,0);
var transcodeId = transcode.childNodes[0].id;//transCode
var transc = document.getElementById(transcodeId).value;//transCode
if('030123' == transc) // 交强险的时候
{
baofeiya = getNextSibling(next,5);// 保费
baoebaofeie = getNextSibling(next,4);
}
var xianbiemingcheng = getNextSibling(next,3);
var xianbiedaima = getNextSibling(next,2);
var sumId = baofeiya.childNodes[0].id;//得到td的前一个节点
var sumpremiumValue = document.getElementById(sumId).value;//得到勾选值对应的保费
var amountId = baoebaofeie.childNodes[0].id;//得到td的前一个的前一个节点 保额
var amountValue = document.getElementById(amountId).value;//得到勾选值对应的保费
var kindNameId = xianbiemingcheng.childNodes[1].id;//险别名称ID
var kindName = document.getElementById(kindNameId).value;//险别名称
var kindCodeId = xianbiedaima.childNodes[0].id;//险别代码ID
var kindCode = document.getElementById(kindCodeId).value;//险别名称
/*var sumId = next.previousSibling.childNodes[0].id;//得到td的前一个节点
var sumpremiumValue = document.getElementById(sumId).value;//得到勾选值对应的保费
var amountId = next.previousSibling.previousSibling.childNodes[0].id;//得到td的前一个的前一个节点 保额
var amountValue = document.getElementById(amountId).value;//得到勾选值对应的保费
var kindNameId = next.previousSibling.previousSibling.previousSibling.childNodes[1].id;//险别名称ID
var kindName = document.getElementById(kindNameId).value;//险别名称
var kindCodeId = next.previousSibling.previousSibling.previousSibling.previousSibling.childNodes[0].id;//险别代码ID
var kindCode = document.getElementById(kindCodeId).value;//险别名称*/
var relationFlag = getNextSibling(next,6);//1主险 2附加险
var relationFlagId = relationFlag.childNodes[0].id;
var isMain = document.getElementById(relationFlagId).value;
if(isMain=='2'){
if((transc == "030108" || transc== "030111") && trim(amountValue)==""){//附加险中 划痕 新增设备的附加险都需要录入保额,其他附加险不用
alert("请填入勾选险别的保额");
return false;
}
if(trim(amountValue)==""){
//document.getElementById(amountId).value=0;
amountValue=0.00;
};
}else{
if(trim(sumpremiumValue)==""){
alert("请填入勾选险别的保费");
return false;
}
if(trim(amountValue)==""){
alert("请填入勾选险别的保额");
return false;
}
}
baoeSum = baoeSum.add(parseFloat(amountValue));
$("#sumAmount").val(baoeSum);
//做成json数据
var PrpSitemKind = new Object();
PrpSitemKind.kindCode=kindCode;
PrpSitemKind.kindName=kindName;
PrpSitemKind.amount=amountValue;
PrpSitemKind.premium=sumpremiumValue;
//var prpSitemKinds = JSON.stringify(PrpSitemKind);
//jsonStr += JSON.stringify(PrpSitemKind)+"";
jsonObj.push(JSON.stringify(PrpSitemKind));
}
}
if(jsonObj==""){
alert("险别信息不能为空!");
return false;
};
jsonObjStr = "[".concat(jsonObj).concat("]");
document.getElementById("jsonObjStr").value=jsonObjStr;
//alert(jsonStr);
if(YAHOO.quote.data.datacheck('wrapper') ){
var startDate = $("#startDate1").val();
var endDate = $("#endDate1").val();
var makeDate = $("#makeDate").val();
var startDateArr=startDate.split("-");
var startDateTime=new Date(startDateArr[0],startDateArr[1],startDateArr[2]);
var endDateArr=endDate.split("-");
var endDateTime=new Date(endDateArr[0],endDateArr[1],endDateArr[2]);
var makeDateArr=makeDate.split("-");
var makeDateTime=new Date(makeDateArr[0],makeDateArr[1],makeDateArr[2]);
if(startDateTime>=endDateTime){
alert("保险起期不能晚于保险止期");
return false;
}
//subin 20141228
var appliCustomerResource=$("#appliCustomerResource");
var insuredCustomerResource=$("#insuredCustomerResource");
var resourceCustId=$("#resourceCustId");
if(resourceCustId.val()!=""&&$("#insOrderNo").val()==""){
if(insuredCustomerResource.val()=="ERP"){
alert("被保险人为ERP客户,请选择ERP保险销售单号");
return false;
}
if(appliCustomerResource.val()=="ERP"){
alert("投保人为ERP客户,请选择ERP保险销售单号");
return false;
}
}
//if(makeDateTime<startDateTime){
// alert("出单日期不能晚于保险起期");
// return false;
//}
if(checkRiskConfict()){
return false;//检验险别是否冲突
}
fm.submitButton.disabled = true;
submitDlg = new YAHOO.widget.Panel("submitDlg",{iframe:true, visible:true, width:600, height:450, underlay:"shadow", constraintoviewport:true, fixedcenter:true, modal:true, zIndex:320});
submitDlg.setHeader("新增保单");
submitDlg.setBody("<iframe name='submitFrame' src='javascript:false;' frameborder='0' style='margin:0; padding:0; width:100%; height: 100%'></iframe>");
submitDlg.render(document.body);
submitDlg.show();
YAHOO.util.Event.addListener(submitDlg.close, "click", refreshPage, this);
fm.action=contextRootPath+"/insureListManage/saveNewCar.do";
fm.target="submitFrame";
fm.submit();
}else{
alert("界面输入有误,请核实!");
return false;
}
}
Cannot set property 'value' of null
应该是getElementById没找到元素
Cannot set property 'value' of null
应该是getElementById没找到元素
看看你自己定义的id是不是 jsonObjStr document.getElementById("jsonObjStr").value
控件id写错了。看看有没有id是jsonObjStr的这个控件。
-->document.getElementById("jsonObjStr").value