众所周知,微软公司正在全力打造.Net,并准备将它作为向其他公司进攻的砝码,来保证其在业界的技术领先地位。 其实,微软公司在许多领域都处于领导地位,一些优秀的产品让其他公司难望其项颈,如操作系统 ,办公软件等基于Windows平台的一些优秀的应用软件(如:IE)。但在美国,许多大公司非常反感微软一手包办的作风,也对微软的不放心,对其产品的安全性的担忧,所以大部分都用Unix 和linux等非Windows平台,许多服务器也是用的非Windows平台,或是用自己开发的操作系统。但Windows的方便性和界面友好性及众多的工具也是其他平台难以比拟的(应该没什么争议的),而Unix和Linux平台似乎只适合一些专家。能不能找到一个桥梁将Windows产品同其他平台联系起来呢?目前有www.stryon.com公司正在实现这一点,开发了iNet,将Microsoft.Net转换成java代码来实现跨平台。 例如用Visual Studio.Net开发了一个Web Service程序: testClient.asmx: <%@ WebService Language="C#" Class="testClient" %> using System; using System.Web.Services; using System.Web.Services.Protocols; using System.Web.Services.Description; using System.Xml; using System.Xml.Schema; using System.Xml.Serialization; using System.Data; public class testClient : WebService { [WebMethod()] public int testInt(int a,int b){ return a+b; } [WebMethod()] public struct1 testStruct(struct1 a){ return a; } [WebMethod()] public int[] testIntArr(int[] a){ return a; } [WebMethod()] public struct1[] testStrArr(struct1[] a){ return a; } [WebMethod()] public struct1 testStructAndArr(struct1 a,struct1[] b){ return a; } [WebMethod()] public struct1[][] testStrManyArr(struct1[][] a){ return a; } } public class struct1:parent{ public int i=1; public string j="ok"; public struct2 s2; } public class parent{ public String p; } public class struct2{ public String sField; } 我们可以用il2java 工具转换成java代码(il2java工具可以在www.stryon.com 网站上下载,包括在iNet产品中),如:il2java http://localhost/testClient/testClient.asmx c:\temp,运行这个命令,将在c盘temp目录下产生 testClient.java 和testClient_Info.java: testClient.java: import system.*; import system.Reflection.*; import system.Web.Services.*; public class testClient extends WebService{ public int testInt(int a, int b){ return a+b; } public struct1 testStruct(struct1 a){ return a; } public int[] testIntArr(int[] a){ return a; } public struct1[] testStrArr(struct1[] a){ return a; } public struct1 testStructAndArr(struct1 a, struct1[] b){ return a; } public struct1[][] testStrManyArr(struct1[][] a){ return a; } public testClient(){ super(); } } 用来指明Web Service中有哪些Web方法,以便被客户调用; testClient_Info.java: import system.*; import system.Reflection.*; import system.Web.Services.*; public class testClient_Info implements IMetaData{ public void fillType(Type t){ long value = TypeAttributes.AnsiClass.value__ | TypeAttributes.AutoLayout.value__ | TypeAttributes.BeforeFieldInit.value__ | TypeAttributes.Class.value__ | TypeAttributes.Public.value__; TypeAttributes attributes = new TypeAttributes(value); t.set_Attributes(attributes); } public FieldInfo[] GetFieldsImpl(Type t){ return new FieldInfo[0]; } public ConstructorInfo[] GetConstructorsImpl(Type t){ long value = 0; ConstructorInfo ctor = null; ParameterInfo param = null; MethodAttributes attributes = null; ParameterAttributes paramAttrs = null; java.util.Vector ctorVec = new java.util.Vector(); // public testClient(); value = MethodAttributes.HideBySig.value__ | MethodAttributes.Public.value__ | MethodAttributes.ReuseSlot.value__ | MethodAttributes.RTSpecialName.value__ | MethodAttributes.SpecialName.value__; attributes = new MethodAttributes(value); ctor = new ConstructorInfo(t); ctorVec.addElement(ctor); ctor.set_Attributes(attributes); ctor.set_Name("testClient"); ctor.set_BindingFlags(BindingFlags.Public.value__ | BindingFlags.Instance.value__); Object[] objs = ctorVec.toArray(); ctorVec = null; ConstructorInfo[] ctors = new ConstructorInfo[objs.length]; java.lang.System.arraycopy(objs, 0, ctors, 0, objs.length); return ctors; } public MethodInfo[] GetMethodsImpl(Type t){ long value = 0; MethodInfo method = null; ParameterInfo param = null; MethodAttributes attributes = null; ParameterAttributes paramAttrs = null; java.util.Vector mdVec = new java.util.Vector(); // public int testInt(int a, int b); value = MethodAttributes.HideBySig.value__ | MethodAttributes.Public.value__ | MethodAttributes.ReuseSlot.value__; attributes = new MethodAttributes(value); method = new MethodInfo(t); mdVec.addElement(method); method.set_Attributes(attributes); method.set_Name("testInt"); method.set_ReturnType("System.Int32"); method.set_BindingFlags(BindingFlags.Public.value__ | BindingFlags.Instance.value__); value = 0; paramAttrs = new ParameterAttributes(value); param = new ParameterInfo(method); param.set_Attributes(paramAttrs); param.set_Name("a"); param.set_ParamType("System.Int32"); method.addParameterInfo(param); value = 0; paramAttrs = new ParameterAttributes(value); param = new ParameterInfo(method); param.set_Attributes(paramAttrs); param.set_Name("b"); param.set_ParamType("System.Int32"); method.addParameterInfo(param); // public struct1 testStruct(struct1 a); value = MethodAttributes.HideBySig.value__ | MethodAttributes.Public.value__ | MethodAttributes.ReuseSlot.value__; attributes = new MethodAttributes(value); method = new MethodInfo(t); mdVec.addElement(method); method.set_Attributes(attributes); method.set_Name("testStruct"); method.set_ReturnType("struct1"); method.set_BindingFlags(BindingFlags.Public.value__ | BindingFlags.Instance.value__); value = 0; |