nity3d XML的创建、更新、添加、删除和读取
关于Xml文件的相关操作创建、更新、添加、删除、读取using System.IO;using System.Xml;using UnityEngine;public class XmlOperation : MonoBehaviour{ private string path = "";
void Awake() { path= Application.dataPath + "/test.xml"; }
void Start() { //CreateXml(path); //UpdateXml(path,"0"); //AddXml(path); //DeleteXml(path,"1001"); ReadXml(path); }
/// <summary> /// 根据路径来创建xml文件 /// </summary> /// <param name="filePath"></param> public void CreateXml(string filePath) { if (!File.Exists(filePath)) { // 创建xml文档实例 XmlDocument xmlDoc = new XmlDocument(); // 创建根节点 XmlElement root = xmlDoc.CreateElement("transforms"); // 创建第一个子节点 XmlElement elmXml = xmlDoc.CreateElement("rotation"); // 设置节点属性 elmXml.SetAttribute("id", "0"); elmXml.SetAttribute("name", "first"); // 创建第一子节点的子节点 XmlElement rotation_x = xmlDoc.CreateElement("x"); rotation_x.InnerText = "0"; XmlElement rotation_y = xmlDoc.CreateElement("y"); rotation_y.InnerText = "1"; XmlElement rotation_z = xmlDoc.CreateElement("z"); rotation_z.InnerText = "2";
// 排序 elmXml.AppendChild(rotation_x); elmXml.AppendChild(rotation_y); elmXml.AppendChild(rotation_z); root.AppendChild(elmXml); xmlDoc.AppendChild(root);
xmlDoc.Save(filePath); } }
/// <summary> /// 更新指定id的xml数据 /// </summary> /// <param name="path"></param> /// <param name="id"></param> public void UpdateXml(string path, string id) { if (File.Exists(path)) { XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(path);
XmlNodeList nodes = xmlDoc.SelectSingleNode("transforms").ChildNodes;
foreach (XmlElement xe in nodes) { if (xe.GetAttribute("id") == id) { xe.SetAttribute("id", "1001");
foreach (XmlElement xx1 in xe.ChildNodes) { if (xx1.Name == "x") xx1.InnerText = "1001"; } break; } }
xmlDoc.Save(path); } } /// <summary> /// 添加一条数据 /// </summary> /// <param name="path"></param> public void AddXml(string path) { if (File.Exists(path)) { XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(path); XmlNode root = xmlDoc.SelectSingleNode("transforms"); XmlElement elmNew = xmlDoc.CreateElement("rotation"); elmNew.SetAttribute("id", "1"); elmNew.SetAttribute("name", "yusong");
XmlElement rotation_X = xmlDoc.CreateElement("x"); rotation_X.InnerText = "0"; XmlElement rotation_Y = xmlDoc.CreateElement("y"); rotation_Y.InnerText = "1"; XmlElement rotation_Z = xmlDoc.CreateElement("z"); rotation_Z.InnerText = "2";
elmNew.AppendChild(rotation_X); elmNew.AppendChild(rotation_Y); elmNew.AppendChild(rotation_Z); root.AppendChild(elmNew); xmlDoc.AppendChild(root); xmlDoc.Save(path); } } /// <summary> /// 删除数据 /// </summary> /// <param name="path"></param> /// <param name="id"></param> public void DeleteXml(string path, string id) { if (File.Exists(path)) { XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(path); XmlNodeList nodeList = xmlDoc.SelectSingleNode("transforms").ChildNodes; foreach (XmlElement xe in nodeList) { if (xe.GetAttribute("id") == id) { // 移除指定id的属性 xe.RemoveAttribute("id"); }
foreach (XmlElement x1 in xe.ChildNodes) { // 移除所有z的value if (x1.Name == "z") { x1.RemoveAll();
} } } xmlDoc.Save(path); } }
/// <summary> /// 读取xml /// </summary> /// <param name="path"></param> public void ReadXml(string path) { if (File.Exists(path)) { XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(path); XmlNodeList nodes = xmlDoc.SelectSingleNode("transforms").ChildNodes; foreach (XmlElement xe in nodes) { Debug.Log("ID: " + xe.GetAttribute("id")); Debug.Log("Name: "+xe.GetAttribute("name"));
string element = ""; foreach (XmlElement x in xe) { element= element + "," + x.InnerText; } Debug.Log(element); } } }}
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