javawebservice接口开发(webservice接口开发wsdl)
java如何调用webservice接口
Java调用WebService可以直接使用Apache提供的axis.jar自己编写代码,或者利用Eclipse自动生成WebService Client代码,利用其中的Proxy类进行调用。理论上是一样的,只不过用Eclipse自动生成代码省事些。
1、编写代码方式:
package com.yudun.test;
import java.rmi.RemoteException;
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.message.PrefixedQName;
import org.apache.axis.message.SOAPHeaderElement;
import com.cezanne.golden.user.Exception;
import com.cezanne.golden.user.UserManagerServiceProxy;
import javax.xml.namespace.QName;
import java.net.MalformedURLException;
import javax.xml.rpc.ServiceException;
import javax.xml.soap.Name;
import javax.xml.soap.SOAPException;
public class testWebService {
public static String getResult() throws ServiceException, MalformedURLException, RemoteException, SOAPException
{
//标识Web Service的具体路径
String endpoint = "WebService服务地址";
// 创建 Service实例
Service service = new Service();
// 通过Service实例创建Call的实例
Call call = (Call) service.createCall();
//将Web Service的服务路径加入到call实例之中.
call.setTargetEndpointAddress( new java.net.URL(endpoint) );//为Call设置服务的位置
// 由于需要认证,故需要设置调用的SOAP头信息。
Name headerName = new PrefixedQName( new QName("发布的wsdl里的targetNamespace里的url", "string_itemName") );
org.apache.axis.message.SOAPHeaderElement header = new SOAPHeaderElement(headerName);
header.addTextNode( "blablabla" );
call.addHeader(header);
// SOAPHeaderElement soapHeaderElement = new SOAPHeaderElement("发布的wsdl里的targetNamespace里的url", "SoapHeader");
// soapHeaderElement.setNamespaceURI("发布的wsdl里的targetNamespace里的url");
// try
// {
// soapHeaderElement.addChildElement("string_itemName").setValue("blablabla");
// }
// catch (SOAPException e)
// {
// e.printStackTrace();
// }
// call.addHeader(soapHeaderElement);
//调用Web Service的方法
org.apache.axis.description.OperationDesc oper;
org.apache.axis.description.ParameterDesc param;
oper = new org.apache.axis.description.OperationDesc();
oper.setName("opName");
param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg0"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("", "string"), java.lang.String.class, false, false);
param.setOmittable(true);
oper.addParameter(param);
param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg1"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("", "string"), java.lang.String.class, false, false);
param.setOmittable(true);
oper.addParameter(param);
param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg2"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("", "string"), java.lang.String.class, false, false);
param.setOmittable(true);
oper.addParameter(param);
oper.setReturnType(new javax.xml.namespace.QName("", "string"));
oper.setReturnClass(java.lang.String.class);
oper.setReturnQName(new javax.xml.namespace.QName("", "return"));
oper.setStyle(org.apache.axis.constants.Style.WRAPPED);
oper.setUse(org.apache.axis.constants.Use.LITERAL);
oper.addFault(new org.apache.axis.description.FaultDesc(
new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "Exception"),
"Exception",
new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "Exception"),
true
));
call.setOperation( oper );
call.setOperationName(new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "opName"));
//调用Web Service,传入参数
String res = ( String ) call.invoke( new Object[]("arg0","arg1"));
System.out.println("===============");
return res;
}
/**
* @param args
*/
public static void main(String[] args) {
try {
System.out.println(getResult());
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (RemoteException e) {
e.printStackTrace();
} catch (ServiceException e) {
e.printStackTrace();
} catch (SOAPException e) {
e.printStackTrace();
}
}
}
2、利用Eclipse自动生成WebService client代码就容易多了:(由于还不会发图片,就用语言描述了,大家酬和看吧。。。)
首先,new project,选择other,在输入框中输入Web Service Client,选中搜索后的结果,点击Next,在Service definition中输入 WebService的发布地址,点击Finish
这样,WebService Client代码已经生成好了。
接下来写一个Test类,在main函数中输入如下代码:
String endpoint = "服务器的WebService的地址";
YourWebServiceNameProxy umsp = new YourWebServiceNameProxy (endpoint);
try {
String resultStr = umsp.opMethod("arg0","arg1");
System.out.println(resultStr);
} catch (Exception e) {
System.out.println("异常");
e.printStackTrace();
} catch (RemoteException e) {
System.out.println("RemoteException异常");
e.printStackTrace();
}
如果还有疑问的话还有视频,如果对你有帮助请采纳!
java Webservice都有哪几种方式啊,哪种方式比较好啊
webservice的应用已经越来越广泛了,下面介绍几种在Java体系中开发webservice的方式,相当于做个记录。
1.Axis2
Axis是apache下一个开源的webservice开发组件,出现的算是比较早了,也比较成熟。这里主要介绍Axis+eclipse开发webservice,当然不用eclipse也可以开发和发布webservice,只是用eclipse会比较方便。
(1)下载eclipse的Java EE版本
(2)下载axis2
(3)下载eclipse的axis2插件
Axis2_Codegen_Wizard
Axis2_Service_Archiver
推荐使用1.3的版本
(4)eclipse安装axis2插件
1)在任意目录下新建一个Axis2文件夹,在该文件夹下新建eclipse目录,在eclipse目录中新建plugins目录和features目录,例如:D:\programSoftware\eclipse-SVN\Axis2\eclipse;
2)把下载的axis2插件解压,并把解压的文件放到新建的eclipse的plugins目录下;
3)在%eclipse_home%的目录下新建links目录,并在links目录下新建axis2.link文件,内容为:path=D:\programSoftware\eclipse-SVN\Axis2;
4)重启eclipse,点击·file-new-other,如果看到Axis2 Wizards,则表明插件安装成功。
(5)安装axis2
(6)使用eclipse新建web工程,创建一个普通java类,至少包含一个方法。
(7)发布webservice
1)点击eclipse的File-New-other,打开Axis2 Wizards,选择Axis2 Service Archiver,然后Next;
2)选择Class File Location,也就是类文件存放路径,注意:只选到classes目录,不要包括包文件夹,然后Next;
3)选择Skip WSDL,然后Next
4)一路Next到Select the Service XML file to be included in the Service archive,勾选Generate theservice xml automatically;
5)Service Name-填写你的service名称,Class Name-填写类名称,要包括包名,然后点击load,然后点击Finish,这时webservice就发布成功了;
6)然后到%TOMCAT_HOME%/webapps/axis2/WEB-INF/services 看看是否多了一个.aar的文件;
注意:以上的方式是发布到axis2.war包中,你也可以把生成.aar文件copy到你的实际应用中,同时,你也可以使用eclipse的create webservice功能发布你的webservice,选择axis2生成你的webservice,这样webservice就会部署到你的应用中了。
2.Apche CXF
CXF开发webservice也是比较方便和简单的,它和spring的集成可以说是非常地好。举一个CXF开发webservice的例子吧。
1)在eclipse中新建一个web工程,导入依赖包,如图:
2)编写一个接口,如:
注意:CXF开发的webservice,接口中的方法的参数一定要以这种方式,否则客户端调用的时候CXF服务端会接收不到参数的值,name:参数名称,可不写(建议写上),targetNamespace:命名空间,一定要填写上,默认是包名反过来的顺序,mode:参数类型,IN表示输入。
3)编写一个实现类,实现接口的方法;
4)和spring的集成,编写一个bean文件,如:cxf-beans.xml,内容如下:
Cxf-beans.xml代码
?xml version="1.0" encoding="UTF-8" ?
import resource="classpath:META-INF/cxf/cxf.xml" /
import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" /
import resource="classpath:META-INF/cxf/cxf-servlet.xml" /
jaxws:endpoint id="vote" implementor="com.zcl.cxf.service.VoteImpl" address="/Vote" /
/beans
这个文件比较容易理解,就不解释了。
5)配置CXFServlet
在web.xml文件中配置CXFServlet,加载cxf-beans.xml文件,内容如下:
Web.xml代码
id="WebApp_ID" version="2.5"
context-param
param-namecontextConfigLocation/param-name
param-valueWEB-INF/cxf-beans.xml/param-value
/context-param
listener
listener-classorg.springframework.web.context.ContextLoaderListener/listener-class
/listener
servlet
servlet-namecxf/servlet-name
servlet-classorg.apache.cxf.transport.servlet.CXFServlet/servlet-class
load-on-startup1/load-on-startup
/servlet
servlet-mapping
servlet-namecxf/servlet-name
url-pattern/services/*/url-pattern
/servlet-mapping
/web-app
把工程部署到中间件,如tomcat,就可以访问该webservice了。
3.JDK开发webservice
1)编写一个Java类,如下:
Jdkwebservice.java代码
package demo;
import javax.jws.WebParam;
import javax.jws.WebService;
import javax.xml.ws.Endpoint;
@WebService
public class JdkWebService {
return "Just do it," + value + "!";
}
public static void main(String[] args) {
}
}
2)运行该java类,在浏览器上就可以访问该webservice了。
注意:开发web工程的时候,这种方法不太友好。我们可以编写一个servlet类,在servlet类的初始化方法中发布webservice,这样我们的中间件服务器启动的时候就会帮我们自动webservice了。
4) xfire
开发WebService的框架不少,每个框架都有各自的有点,最近我用xfire练习开发WebService,下面是开发WebService的小例子,希望对入门的人有些小帮助
1.新建一个java web project命名为TestWebService,将xfire相关的jar包添加到lib目录中,写接口类和实现类
Java代码
package com.lamp.service;
public interface MessageService {
public String getName(String name);
}
[java] view plaincopyprint?
package com.lamp.service;
public interface MessageService {
public String getName(String name);
}
实现类
Java代码
package com.lamp.service.impl;
import com.lamp.service.MessageService;
public class MessageServiceImpl implements MessageService {
public String getName(String name) {
return "hellow " + name + ", welcome to WebService world";
}
}
[java] view plaincopyprint?
package com.lamp.service.impl;
import com.lamp.service.MessageService;
public class MessageServiceImpl implements MessageService {
public String getName(String name) {
return "hellow " + name + ", welcome to WebService world";
}
}
在src目录下新建文件夹META-INF,然后再在其下新建文件夹xfire,在xfire目录下新建配置文件services.xml
Xml代码
?xml version="1.0" encoding="UTF-8"?
service
nameMessageService/name
serviceClasscom.lamp.service.MessageService/serviceClass
implementationClasscom.lamp.service.impl.MessageServiceImpl/implementationClass
/service
/beans
[xml] view plaincopyprint?
?xml version="1.0" encoding="UTF-8"?
service
nameMessageService/name
serviceClasscom.lamp.service.MessageService/serviceClass
implementationClasscom.lamp.service.impl.MessageServiceImpl/implementationClass
/service
/beans
最后在web.xml中配置xfire的servlet
Xml代码
servlet
servlet-nameXFireServlet/servlet-name
servlet-class
/servlet-class
/servlet
servlet-mapping
servlet-nameXFireServlet/servlet-name
url-pattern/servlet/XFireServlet/*/url-pattern
/servlet-mapping
servlet-mapping
servlet-nameXFireServlet/servlet-name
url-pattern/services/*/url-pattern
/servlet-mapping
[xml] view plaincopyprint?
servlet
servlet-nameXFireServlet/servlet-name
servlet-class
/servlet-class
/servlet
servlet-mapping
servlet-nameXFireServlet/servlet-name
url-pattern/servlet/XFireServlet/*/url-pattern
/servlet-mapping
servlet-mapping
servlet-nameXFireServlet/servlet-name
url-pattern/services/*/url-pattern
/servlet-mapping
这样服务器端开发完毕,现在开始客户端的开发
新建一个java project也将xfire相关的jar引入,我用ant在客户端生成代理对象,在项目路径下新建build.xml,代码为
Xml代码
?xml version="1.0" encoding="UTF-8"?
project name="WebService" basedir="." default="gen-webservice"
property file="build.properties"
/property
path id="project-classpath"
fileset dir="${lib.dir}"
include name="**/*.jar" /
/fileset
/path
target name="gen-webservice"
taskdef name="wsgen" classname="org.codehaus.xfire.gen.WsGenTask" classpathref="project-classpath" /
wsgen outputDirectory="${src.dir}"
wsdl="${wsdl.dir}" package="com.lamp.ws.client" overwrite="true"/
/target
/project
[xml] view plaincopyprint?
?xml version="1.0" encoding="UTF-8"?
project name="WebService" basedir="." default="gen-webservice"
property file="build.properties"
/property
path id="project-classpath"
fileset dir="${lib.dir}"
include name="**/*.jar" /
/fileset
/path
target name="gen-webservice"
taskdef name="wsgen" classname="org.codehaus.xfire.gen.WsGenTask" classpathref="project-classpath" /
wsgen outputDirectory="${src.dir}"
wsdl="${wsdl.dir}" package="com.lamp.ws.client" overwrite="true"/
/target
/project
java语言 编写接口开发需要用到WebService么?
WebService是第三方接口,就是可以远程调用服务接口。如果是本机上,直接调用就行了,不需要用WebService技术!
java如何调用webservice接口?
Java通过WSDL文件来调用webservice直接调用模式如下:
import java.util.Date;
import java.text.DateFormat;
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import javax.xml.namespace.QName;
import java.lang.Integer;
import javax.xml.rpc.ParameterMode;
public class caClient {
public static void main(String[] args) {
try {
String endpoint = "";
//直接引用远程的wsdl文件
//以下都是套路
Service service = new Service();
Call call = (Call) service.createCall();
call.setTargetEndpointAddress(endpoint);
call.setOperationName("addUser");//WSDL里面描述的接口名称
call.addParameter("userName", org.apache.axis.encoding.XMLType.XSD_DATE,
javax.xml.rpc.ParameterMode.IN);//接口的参数
call.setReturnType(org.apache.axis.encoding.XMLType.XSD_STRING);//设置返回类型
String temp = "测试人员";
String result = (String)call.invoke(new Object[]{temp});
//给方法传递参数,并且调用方法
System.out.println("result is "+result);
}
catch (Exception e) {
System.err.println(e.toString());
}
}
}
java开发webservice接口有几种方式
Support for Standards
JSR Support
??? JAX-WS - Java API for XML-Based Web Services (JAX-WS) 2.0 - JSR-224
??? Web Services Metadata for the Java Platform - JSR-181
??? JAX-RS - The Java API for RESTful Web Services - JSR-311
??? SAAJ - SOAP with Attachments API for Java (SAAJ) - JSR-67
WS-* and related Specifications Support
??? Basic support: WS-I Basic Profile 1.1
??? Quality of Service: WS-Reliable Messaging
??? Metadata: WS-Policy, WSDL 1.1 - Web Service Definition Language
??? Communication Security: WS-Security, WS-SecurityPolicy, WS-SecureConversation, WS-Trust (partial support)
??? Messaging Support: WS-Addressing, SOAP 1.1, SOAP 1.2, Message Transmission Optimization Mechanism (MTOM)
Multiple Transports, Protocol Bindings, Data Bindings, and Formats
??? Transports: HTTP, Servlet, JMS, In-VM and many others via the Camel transport for CXF such as SMTP/POP3, TCP and Jabber
??? Protocol Bindings: SOAP, REST/HTTP, pure XML
??? Data bindings: JAXB 2.x, Aegis, Apache XMLBeans, Service Data Objects (SDO), JiBX
??? Formats: XML Textual, JSON, FastInfoset
??? Extensibility API allows additional bindings for CXF, enabling additional message format support such as CORBA/IIOP