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webservice(六)基于契约优先的wsdl文件生成webservice服务代码实例

 
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首先是介绍整个流程

契约优先开发流程
1.先编写schema或者wsdl文件
2.根据这个文件生成一个客户端代码
3.编写实现类(在实现类上指定wsdlLocation)
4.发布服务

创建wsdl
1.在类路径META-INF下创建wsdl
2.新建wsdl并且编写文件
2.1编写type
2.2编写message
2.3编写portType指定接口和方法
2.4编写binding指定编码样式
2.5编写service(name要与命名空间名称一样)
3.根据名称生成服务器端代码
进入wsdl文件夹内用wsimport -d D:\sid\workspace_webservice\wsimport -keep mywsdl.wsdl
只留IMyService一个接口,其他的都删除
4.编写一个实现类实现接口

5.在实现类上指定wsdl的位置
指定targetNameSpace与接口的一样(可以不指定,但是需要自己重新添加方法的返回标注等)
@WebService(endpointInterface="org.example.mywsdl.IMyService",
targetNamespace="http://www.example.org/mywsdl/",
wsdlLocation="META-INF/wsdl/mywsdl.wsdl")
6.启动服务
然后在启动时候可以热修改,直接修改wsdl文件
7.执行服务器wsimport,生成客户端代码
wsimport -d D:\sid\workspace_webservice\wsimport -keep -verbose http://localhost:8989/ms?wsdl

8.加入header
wsdl文件中修改:
<!-- 定义头部信息 -->
<xsd:element name="licenseInfo" type="xsd:string"/>
<!-- 定义头信息 -->
<wsdl:message name="licenseInfo">
<wsdl:part name="licenseInfo" element="tns:licenseInfo"/>
</wsdl:message>
<!-- 在方法中加入头信息 -->
<soap:header use="literal" part="licenseInfo" message="tns:licenseInfo"/>

修改IMyService的add方法
public int add(
@WebParam(name = "a", targetNamespace = "")
int a,
@WebParam(name = "b", targetNamespace = "")
int b,
@WebParam(name = "licenseInfo", header=true)
String licenseInfo);

代码如下:

mywsdl.wsdl:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://www.example.org/mywsdl/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="mywsdl" targetNamespace="http://www.example.org/mywsdl/">
  <wsdl:types>
    <xsd:schema targetNamespace="http://www.example.org/mywsdl/">
  	<!-- 定义方法 -->
    	<xsd:element name="add" type="tns:add"/>
    	<xsd:element name="addResponse" type="tns:addResponse"/>
    	<xsd:element name="divide" type="tns:divide"/>
    	<xsd:element name="divideResponse" type="tns:divideResponse"/>
    	<!-- 定义头部信息 -->
    	<xsd:element name="licenseInfo" type="xsd:string"/>
    	
  	<!-- 定义类型 -->
    	<xsd:complexType name="add">
    		<xsd:sequence>
    			<xsd:element name="a" type="xsd:int"/>
    			<xsd:element name="b" type="xsd:int"/>
    		</xsd:sequence>
    	</xsd:complexType>
    	<xsd:complexType name="addResponse">
    		<xsd:sequence>
    			<xsd:element name="addResult" type="xsd:int"/>
    		</xsd:sequence>
    	</xsd:complexType>
    	<xsd:complexType name="divide">
    		<xsd:sequence>
    			<xsd:element name="num1" type="xsd:int"/>
    			<xsd:element name="num2" type="xsd:int"/>
    		</xsd:sequence>
    	</xsd:complexType>
    	<xsd:complexType name="divideResponse">
    		<xsd:sequence>
    			<xsd:element name="divideResult" type="xsd:int"/>
    		</xsd:sequence>
    	</xsd:complexType>
    </xsd:schema>
  </wsdl:types>
  
  <wsdl:message name="add">
  	<wsdl:part name="add" element="tns:add"/>
  </wsdl:message>
  <wsdl:message name="addResponse">
  	<wsdl:part name="addResponse" element="tns:addResponse"/>
  </wsdl:message>
  <wsdl:message name="divide">
  	<wsdl:part name="divide" element="tns:divide"/>
  </wsdl:message>
  <wsdl:message name="divideResponse">
  	<wsdl:part name="divideResponse" element="tns:divideResponse"/>
  </wsdl:message>
  <!-- 定义头信息 -->
  <wsdl:message name="licenseInfo">
  	<wsdl:part name="licenseInfo" element="tns:licenseInfo"/>
  </wsdl:message>
  
  <wsdl:portType name="IMyService">
    <wsdl:operation name="add">
      <wsdl:input message="tns:add"/>
      <wsdl:output message="tns:addResponse"/>
    </wsdl:operation>
    <wsdl:operation name="divide">
      <wsdl:input message="tns:divide"/>
      <wsdl:output message="tns:divideResponse"/>
    </wsdl:operation>
  </wsdl:portType>
  
  
  <wsdl:binding name="myServiceSOAP" type="tns:IMyService">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
    <wsdl:operation name="add">
      <wsdl:input>
        <soap:body use="literal"/>
        <!-- 加入头信息 -->
        <soap:header use="literal" part="licenseInfo" message="tns:licenseInfo"/>
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal"/>
      </wsdl:output>
    </wsdl:operation>
    <wsdl:operation name="divide">
      <wsdl:input>
        <soap:body use="literal"/>
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal"/>
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>
  
  <wsdl:service name="MyServiceImplService">
    <wsdl:port binding="tns:myServiceSOAP" name="MyServiceImplPort">
      <soap:address location="http://localhost:8989/ms"/>
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>

只留IMyservice类,并进行修改:

package org.example.mywsdl;

import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.ws.RequestWrapper;
import javax.xml.ws.ResponseWrapper;


/**
 * This class was generated by the JAX-WS RI.
 * JAX-WS RI 2.2.4-b01
 * Generated source version: 2.2
 * 
 */
@WebService(name = "IMyService", 
targetNamespace = "http://www.example.org/mywsdl/")
public interface IMyService {


    /**
     * 
     * @param b
     * @param a
     * @return
     *     returns int
     */
    @WebMethod
    @WebResult(name = "addResult", targetNamespace = "")
    @RequestWrapper(localName = "add", targetNamespace = "http://www.example.org/mywsdl/", className = "org.example.mywsdl.Add")
    @ResponseWrapper(localName = "addResponse", targetNamespace = "http://www.example.org/mywsdl/", className = "org.example.mywsdl.AddResponse")
    public int add(
        @WebParam(name = "a", targetNamespace = "")
        int a,
        @WebParam(name = "b", targetNamespace = "")
        int b,
	    @WebParam(name = "licenseInfo", header=true)
	    String licenseInfo);

    /**
     * 
     * @param num2
     * @param num1
     * @return
     *     returns int
     */
    @WebMethod
    @WebResult(name = "divideResult", targetNamespace = "")
    @RequestWrapper(localName = "divide", targetNamespace = "http://www.example.org/mywsdl/", className = "org.example.mywsdl.Divide")
    @ResponseWrapper(localName = "divideResponse", targetNamespace = "http://www.example.org/mywsdl/", className = "org.example.mywsdl.DivideResponse")
    public int divide(
        @WebParam(name = "num1", targetNamespace = "")
        int num1,
        @WebParam(name = "num2", targetNamespace = "")
        int num2);

}

创建实现类之后发布服务

package org.example.mywsdl;

import javax.xml.ws.Endpoint;

public class MyServer {

	public static void main(String[] args) {
		//地址是在wsdl中编写的
		Endpoint.publish("http://localhost:8989/ms", new MyServiceImpl());
	}
}

根据服务器端生成客户端代码后:

wsimport -d D:\sid\workspace_webservice\wsimport -keep -verbose http://localhost:8989/ms?wsdl

加入测试类:

package org.example.test;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import javax.xml.namespace.QName;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPBodyElement;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPHeader;
import javax.xml.soap.SOAPMessage;
import javax.xml.ws.Dispatch;
import javax.xml.ws.Service;


public class Test {

	public static void main(String[] args) {
		String ns = "http://www.example.org/mywsdl/";
		try {
			QName name = new QName(ns,"MyServiceImplService");
			URL url = new URL("http://localhost:8989/ms?wsdl");
//			MyServiceImplService mis = new MyServiceImplService(url,name);
//			IMyService ms = mis.getMyServiceImplPort();
//			System.out.println(ms.divide(19, 2));
			//使用soap来传递消息
			Service service = Service.create(url,name);
			QName pname = new QName(ns,"MyServiceImplPort");
			Dispatch<SOAPMessage> dispatch  = service.createDispatch(pname, SOAPMessage.class, Service.Mode.MESSAGE);
			SOAPMessage msg = MessageFactory.newInstance().createMessage();
			SOAPEnvelope enve = msg.getSOAPPart().getEnvelope();
			SOAPHeader header = enve.getHeader();
			SOAPBody body = enve.getBody();
			if (header==null) {
				header = enve.addHeader();
			}
			QName hname = new QName(ns,"licenseInfo","ns");
			header.addHeaderElement(hname).setValue("sssssssss");
			QName bname = new QName(ns,"add","ns");
			SOAPBodyElement ele = body.addBodyElement(bname);
			ele.addChildElement("a").setValue("12");
			ele.addChildElement("b").setValue("12");
			
			msg.writeTo(System.out);
			System.out.println("\n invoking。。。。。。。。");
			
			SOAPMessage rep = dispatch.invoke(msg);
			rep.writeTo(System.out);
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (SOAPException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}



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