本文介绍了使用JavaScript生成XML的方法，这种方法主要调用了自己编写的Writer函数来实现的。完整的源代码如下：

function XMLWriter(){ this.XML=[]; this.Nodes=[]; this.State=""; this.FormatXML = function(Str) { if (Str) return Str.replace(/&/g, "&").replace(/\"/g, """).replace(/</g, "<").replace(/>/g, ">"); return "" } this.BeginNode = function(Name) { if (!Name) return; if (this.State=="beg") this.XML.push(">"); this.State="beg"; this.Nodes.push(Name); this.XML.push("<" Name); } this.EndNode = function() { if (this.State=="beg") { this.XML.push("/>"); this.Nodes.pop(); } else if (this.Nodes.length>0) this.XML.push("</" this.Nodes.pop() ">"); this.State=""; } this.Attrib = function(Name, Value) { if (this.State!="beg" || !Name) return; this.XML.push(" " Name "=\"" this.FormatXML(Value) "\""); } this.WriteString = function(Value) { if (this.State=="beg") this.XML.push(">"); this.XML.push(this.FormatXML(Value)); this.State=""; } this.Node = function(Name, Value) { if (!Name) return; if (this.State=="beg") this.XML.push(">"); this.XML.push((Value=="" || !Value)?"<" Name "/>":"<" Name ">" this.FormatXML(Value) "</" Name ">"); this.State=""; } this.Close = function() { while (this.Nodes.length>0) this.EndNode(); this.State="closed"; } this.ToString = function(){return this.XML.join("");}}XMLWriter 有以下几个方法:BeginNode (Name)EndNode ()Attrib (Name, Value)WriteString (Value)Node (Name, Value)Close ()ToString ()BeginNode 输出一个标签：XML.BeginNode(“Foo”);XML.BeginNode(“Foo”);XML.Attrib(“Bar”, “Some Value”);WriteString 方法：XML.Node(“MyNode”, “My Value”);//Produces: <MyNode>My Value</MyNode>XML.BeginNode(“Foo”);XML.WriteString(“Hello World”);XML.EndNode();//Produces <Foo>Hello World</Foo>Node 方法：XML.EndNode();//Produces: <Foo Bar=”Some Value” />eg:function WriteTest() { try { var XML=new XMLWriter(); XML.BeginNode("Example"); XML.Attrib("SomeAttribute", "And Some Value"); XML.Attrib("AnotherAttrib", "..."); XML.WriteString("This is an example of the JS XML WriteString method."); XML.Node("Name", "Value"); XML.BeginNode("SubNode"); XML.BeginNode("SubNode2"); XML.EndNode(); XML.BeginNode("SubNode3"); XML.WriteString("Blah blah."); XML.EndNode(); XML.Close(); // Takes care of unended tags. // The replace in the following line are only for making the XML look prettier in the textarea. document.getElementById("ExampleOutput").value=XML.ToString().replace(/</g," <"); } catch(Err) { alert("Error: " Err.description); } return false; }生成的xml为：<Example SomeAttribute="And Some Value" AnotherAttrib="...">This is an example of the JS XML WriteString method.<Name>Value</Name><SubNode><SubNode2/><SubNode3>Blah blah.</SubNode3></SubNode></Example>