欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  后端开发

用的Java调用WebService的

程序员文章站 2022-04-25 13:29:41
...
这是一个用Java的调用C#版的WebService接口的例子:
C#接口:
<span style="font-size: 11px;">
using System;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Web.Services.Description;
[WebService(Namespace = "http://www.tangs.com/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class Service : System.Web.Services.WebService
{
public Service () ...{
//如果使用设计的组件,请取消注释以下行 
//InitializeComponent(); 
}
 [SoapRpcMethod(Action = "http://www.tangs.com/Add", RequestNamespace = "http://www.tangs.com/T", ResponseNamespace = "http://www.tangs.com/T", Use = SoapBindingUse.Literal)]
 [WebMethod]
public int Add(int a, int b)
...{
return a + b;
 }
 [SoapRpcMethod(Action = "http://www.tangs.com/Hello", RequestNamespace = "http://www.tangs.com/T", ResponseNamespace = "http://www.tangs.com/T", Use = SoapBindingUse.Literal)]
 [WebMethod]
public String HelloWorld()
...{
return "Hello, world!";
 }
}
...</span>

Java的调用这个web服务中的添加方法和HelloWorld的方法:

1,有参方法:添加

<span style="font-size: 11px;">
public static void addTest() {
try ...{
 Integer i = 1;
 Integer j = 2;
//WebService URL
 String service_url = "http://localhost:4079/ws/Service.asmx";
 Service service = new Service();
 Call call = (Call) service.createCall();
 call.setTargetEndpointAddress(new java.net.URL(service_url));
//设置要调用的方法
call.setOperationName(new QName("http://www.tangs.com/T", "Add"));
//该方法需要的参数
call.addParameter("a", org.apache.axis.encoding.XMLType.XSD_INT,
 javax.xml.rpc.ParameterMode.IN);
 call.addParameter("b", org.apache.axis.encoding.XMLType.XSD_INT,
 javax.xml.rpc.ParameterMode.IN);
//方法的返回值类型
call.setReturnType(org.apache.axis.encoding.XMLType.XSD_INT);
 call.setUseSOAPAction(true);
 call.setSOAPActionURI("http://www.tangs.com/Add");
//调用该方法
Integer res = (Integer)call.invoke(
new Object[]...{
 i, j
 }
 );
 System.out.println( "Result: " + res.toString());
 } catch (Exception e) ...{
 System.err.println(e);
 }
 }...
</span>

运行,结果返回:结果:3

2.无参方法:的HelloWorld

<span style="font-size: 11px;">
public static void helloTest() {
try ...{
 String endpoint = "http://localhost:4079/ws/Service.asmx";
 Service service = new Service();
 Call call = (Call) service.createCall();
 call.setTargetEndpointAddress(new java.net.URL(endpoint));
 call.setOperationName(new QName("http://www.tangs.com/T", "HelloWorld"));
 call.setUseSOAPAction(true);
 call.setSOAPActionURI("http://www.tangs.com/Hello");
 String res = (String)call.invoke(
new Object[]...{
null
 }
 );
 System.out.println( "Result: " + res);
 } catch (Exception e) ...{
 System.err.println(e.toString());
 }
 }...
</span>

可以看到,调用无参的web服务和有参的基本相同,不过无参调用时,不需要调用呼叫的addParameter方法和setReturnType方法
执行查询查询结果报道查看:你好,世界!

附件在为Web服务依赖的JAR包