往xml中更新节点的实例代码

往xml中更新节点的实例代码

/* system.out.println("2323");
documentbuilderfactory factory = documentbuilderfactory.newinstance();
documentbuilder docbuilder = factory.newdocumentbuilder();
document parse = docbuilder
.parse(new file("src/prodquery.xml"));
// element createelement2 = parse.createelement("");
element createelement = parse.createelement("products");
node item2 = parse.getchildnodes().item(parse.getchildnodes().getlength()-1);
for (string item : map.keyset()) {
//循环添加至products
system.out.println("tianjia1");
element clidren = parse.createelement("product");
attr createattribute = parse.createattribute("name");
createattribute.setnodevalue(item);
attr createattribute2 = parse.createattribute("value");
createattribute2.setnodevalue(map.get(item));
clidren.setattributenode(createattribute);
clidren.setattributenode(createattribute2);
createelement.appendchild(clidren);
}
//将products添加到根目录
item2.appendchild(createelement);
//创建一个transformerfactory对象
transformerfactory tfactory = transformerfactory.newinstance();
//得到一个操作对象
transformer transformer = tfactory.newtransformer();
//设置们，这个是编码
transformer.setoutputproperty(outputkeys.encoding, "utf-8");
//
domsource source = new domsource(parse);
system.out.println("改变文件");
streamresult result = new streamresult(new file("src/prodquery.xml"));
//让xml文件换行
transformer.setoutputproperty(outputkeys.indent, "yes");
transformer.setoutputproperty("{http://xml.apache.org/xslt}indent-amount", "4");
transformer.transform(source, result);*/

以上这篇往xml中更新节点的实例代码就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。