Java 空指针异常,未进入循环内部
要求是:如果Java 空指针异常,未进入循环内部,java,xml,Java,Xml,要求是:如果值是电子商务,它将读取SalesOrderNum并调用所需的函数(将其他节点附加到根节点)不是电子商务,它应该调用其他函数 java代码如下所示: //Added for giftCard //error Lineitems = retailChildren.item(j).getChildNodes(); for (int z1 = 0; z1 < Lineitems.getLength(); z1++) { if (Lineitems.item(z1).getNo
值是电子商务,它将读取SalesOrderNum并调用所需的函数(将其他节点附加到根节点)
不是电子商务,它应该调用其他函数
java代码如下所示:
//Added for giftCard
//error
Lineitems = retailChildren.item(j).getChildNodes();
for (int z1 = 0; z1 < Lineitems.getLength(); z1++) {
if (Lineitems.item(z1).getNodeName().equalsIgnoreCase("Return")) {
NodeList returnChild1 = Lineitems.item(z1).getChildNodes();
for (int z2 = 0; z2 < returnChild1.getLength(); z2++) {
if (returnChild1.item(z2).getNodeName().equalsIgnoreCase("Tender")) {
NodeList tenderChild = Lineitems.item(z2).getChildNodes(); //Null pointer exception
for (int z3 = 0; z3 < tenderChild.getLength(); z3++) {
if (tenderChild.item(z3).getNodeName().equalsIgnoreCase("bby:SaleTenderType")) {
System.out.println("Inside");
String SaleTenderType = tenderChild.item(z3).getFirstChild().getNodeValue();
if (SaleTenderType.equalsIgnoreCase("eCommerce")) {
Lineitems = retailChildren.item(j).getChildNodes();
for (int i2 = 0; i2 < Lineitems.getLength(); i2++) {
if (Lineitems.item(i2).getNodeName().equalsIgnoreCase("Return")) {
NodeList returnChild = Lineitems.item(i2).getChildNodes();
for (int k = 0; k < returnChild.getLength(); k++) {
if (returnChild.item(k).getNodeName().equalsIgnoreCase("c360:SalesOrder")) {
String POSLOGSalesOrderNo = returnChild.item(k).getFirstChild().getNodeValue();
SalesOrderNo = POSLOGSalesOrderNo.substring(2, 12);
String SalesOrderNum = POSLOGSalesOrderNo.substring(0, 2);
if (SalesOrderNum.equalsIgnoreCase("HD") || (SalesOrderNum.equalsIgnoreCase("SV")) || (SalesOrderNum.equalsIgnoreCase("CR")) || (SalesOrderNum.equalsIgnoreCase("CW"))) {
if (!prevSalesOrder.equals(SalesOrderNo)) {
IDocEl = outdoc.createElement("IDOC");
ORDERS05.appendChild(createIDocHeader_GC(POSLOGSalesOrderNo, outdoc, EMPST, IDocEl, StoreID, true, returnChild, TRANS));
prevSalesOrder = SalesOrderNo;
}
IDocEl.appendChild(createE1EDP01forReturnLineItem_GC(outdoc, returnChild, StoreID));
}
}
}
}
}
}
}
}
} else {
Lineitems = retailChildren.item(j).getChildNodes();
for (int i3 = 0; i3 < Lineitems.getLength(); i3++) {
if (Lineitems.item(i3).getNodeName().equalsIgnoreCase("Return")) {
NodeList returnChild = Lineitems.item(i3).getChildNodes();
for (int k = 0; k < returnChild.getLength(); k++) {
if (returnChild.item(k).getNodeName().equalsIgnoreCase("c360:SalesOrder")) {
String POSLOGSalesOrderNo = returnChild.item(k).getFirstChild().getNodeValue();
SalesOrderNo = POSLOGSalesOrderNo.substring(2, 12);
String SalesOrderNum = POSLOGSalesOrderNo.substring(0, 2);
if (SalesOrderNum.equalsIgnoreCase("HD") || (SalesOrderNum.equalsIgnoreCase("SV")) || (SalesOrderNum.equalsIgnoreCase("CR")) || (SalesOrderNum.equalsIgnoreCase("CW"))) {
if (!prevSalesOrder.equals(SalesOrderNo)) {
IDocEl = outdoc.createElement("IDOC");
ORDERS05.appendChild(createIDocHeader(POSLOGSalesOrderNo, outdoc, EMPST, IDocEl, StoreID, true, returnChild));
prevSalesOrder = SalesOrderNo;
}
IDocEl.appendChild(createE1EDP01forReturnLineItem(outdoc, returnChild, StoreID));
}
}
}
}
}
}
}
}
}
//end of gift card
//为礼品卡添加
//错误
Lineitems=retailChildren.item(j).getChildNodes();
对于(int z1=0;z1
这里我正在阅读根节点
,然后检查它是否包含
。。如果存在
(显然将存在
)。。否则,如果
不存在,则执行其他功能
我在这一行NodeList tenderChild=Lineitems.item(z2.getChildNodes())中得到空指针异常代码>
请提供您的宝贵意见
提前谢谢 你调试过了吗?我猜Lineitems.item(z2)是空的。。。在第二个循环中,执行“z2LineItems.item(z2)
?您的意思不是returnChild1.item(z2).getChildNodes()