C#解析XML

缺乏、安全感 2022-07-18 04:16 111阅读 0赞

XML文件：

<?xml version="1.0" encoding="UTF-8"?>

</picture>

<doc>

</doc>

<excel>

</excel>

<pdf>

</pdf>

<ppt>

</ppt>

<video>

</video>

</Directory>

解析以上XML文件：

public static void ParseXML(string strMsg)
        {
            print("paeseXML");
            print("XML:"+strMsg);
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.LoadXml(strMsg);//加载XML
            XmlNodeList nodeList = xmlDoc.SelectSingleNode("Directory").ChildNodes;
            print("NodeNum: " + nodeList.Count);
            //遍历每一个节点，拿节点的属性以及节点的内容
            foreach (XmlElement xe in nodeList)
            {
                if (xe.Name == "picture")
                {
                    print("picture count:" + xe.ChildNodes.Count);
                    for (int m = 0; m < xe.ChildNodes.Count; m++)
                    {
                        XmlAttributeCollection attrs = xe.ChildNodes[m].Attributes;
                        myArray[0, m] = attrs[1].Value;
                        print("myArray[" + 0 + "][" + m + "]:" + myArray[0, m]);
                    }          
                }
                if (xe.Name == "doc")
                {
                    print("doc count:" + xe.ChildNodes.Count);
                    for (int m = 0; m < xe.ChildNodes.Count; m++)
                    {
                        XmlAttributeCollection attrs = xe.ChildNodes[m].Attributes;
                        myArray[1, m] = attrs[1].Value;
                        print("myArray[" + 1 + "][" + m + "]:" + myArray[1, m]);
                    }   
                }
                if (xe.Name == "video")
                {
                    print("video count:" + xe.ChildNodes.Count);
                    for (int m = 0; m < xe.ChildNodes.Count; m++)
                    {
                        XmlAttributeCollection attrs = xe.ChildNodes[m].Attributes;
                        myArray[2, m] = attrs[1].Value;
                        print("myArray[" + 2 + "][" + m + "]:" + myArray[2, m]);
                    }   
                }
                if (xe.Name == "ppt")
                {
                    print("ppt count:" + xe.ChildNodes.Count);
                    for (int m = 0; m < xe.ChildNodes.Count; m++)
                    {
                        XmlAttributeCollection attrs = xe.ChildNodes[m].Attributes;
                        myArray[3, m] = attrs[1].Value;
                        print("myArray[" + 3 + "][" + m + "]:" + myArray[3, m]);
                    }   
                }
                if (xe.Name == "excel")
                {
                    print("excel count:" + xe.ChildNodes.Count);
                    for (int m = 0; m < xe.ChildNodes.Count; m++)
                    {
                        XmlAttributeCollection attrs = xe.ChildNodes[m].Attributes;
                        myArray[4, m] = attrs[1].Value;
                        print("myArray[" + 4 + "][" + m + "]:" + myArray[4, m]);
                    }   
                }
                if (xe.Name == "pdf")
                {
                    print("pdf count:" + xe.ChildNodes.Count);
                    for (int m = 0; m < xe.ChildNodes.Count; m++)
                    {
                        XmlAttributeCollection attrs = xe.ChildNodes[m].Attributes;
                        myArray[5, m] = attrs[1].Value;
                        print("myArray[" + 5 + "][" + m + "]:" + myArray[5, m]);
                    }   
                }     
            }
            print("all = " + xmlDoc.OuterXml);
        }

XmlDocument类是.Net API中提供的支持W3C XML DOM标准的类。可以用它来创建和查询XML文档。由于XmlDocument要将XML文档的内容全部装载进内存中，所以对于读取内容过大的XML文档，不适合使用XmlDocument类，而可以使用XmlReader来完成读取。