WebService客户端几种实现方式

一、发布一个webservice服务。

/**
 * 
 * 基于soap的服务
 */
@WebService(name = "Login",// 定义Port名称
serviceName = "MyService", // 修改WebService服务名称
targetNamespace = "http://com.soft.ws/my" // 定义命名空间，默认为倒置的包名
)
public interface MyService {
	// 提供一个对外公开的服务
	@WebMethod(operationName = "authorization")
	// 修改方法名
	String authorization(@WebParam(name = "userId") String userId,
			@WebParam(name = "password") String password);
}

import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;

/**
 * 服务实现类
 */
@WebService(endpointInterface = "com.soft.platform.webservice.server.MyService",
name = "Login",// 定义Port名称
serviceName = "MyService", // 修改WebService服务名称
targetNamespace = "http://com.soft.ws/my" // 定义命名空间，默认为倒置的包名
//服务实现类和接口的注解要一样全
)
public class MyServiceImpl implements MyService {

	@WebMethod(operationName = "authorization" // 修改方法名
	)
	@Override
	public String authorization(
			@WebParam(name = "userId") String userId,
			@WebParam(name = "password") String password) {
		if ("admin".equals(userId) && "123456".equals(password)) {
			return "success";
		}
		return "error";
	}

}

/**
 * 发布服务
 *
 */
public class MyPublisher {
	
	public static void main(String[] args) {
		//指定服务url
		String url = "http://192.168.0.101:8089/myservice";
		//指定服务实现类
		MyService server = new MyServiceImpl();
		//采用命令行发布者Endpoint发布服务
		Endpoint.publish(url, server);
	}

}

二、几种客户端调用方式
1、jdk原生调用(需要获取服务接口文件)

import java.net.URL;

import javax.xml.namespace.QName;
import javax.xml.ws.Service;

import com.soft.platform.webservice.server.MyService;

public class WsClient {

	public static void main(String[] args) throws Exception {
		URL url = new URL("http://192.168.0.101:8089/myservice?wsdl");
		// 指定命名空间和服务名称
		QName qName = new QName("http://com.soft.ws/my", "MyService");
		Service service = Service.create(url, qName);
		// 通过getPort方法返回指定接口
		MyService myServer = service.getPort(new QName("http://com.soft.ws/my",
				"LoginPort"), MyService.class);
		// 调用方法 获取返回值
		String result = myServer.authorization("admin", "123456");
		System.out.println(result);
	}

}
返回结果: success

2.import生成客户端代码
wsimport -d d:/webservice -keep -p com.soft.test.wsimportClient -verbose http://192.168.0.101:8089/myservice?wsdl

public static void main(String[] args) {
		MyService_Service service = new MyService_Service();
		MyService login = service.getLoginPort();
		String result = login.authorization("admin", "123456");
		System.out.println(result);
	}

3、cxf两种调用方式。

public static void main(String[] args) {
		JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
		factory.setServiceClass(MyService.class);
		factory.setAddress("http://192.168.0.101:8089/myservice?wsdl");
		// 需要服务接口文件
		MyService client = (MyService) factory.create();
		String result = client.authorization("admin", "123456");
		System.out.println(result);
	}

public static void main(String[] args) throws Exception {
		//采用动态工厂方式 不需要指定服务接口
		JaxWsDynamicClientFactory dcf = JaxWsDynamicClientFactory.newInstance();
		Client client = dcf
				.createClient("http://192.168.0.101:8089/myservice?wsdl");
		QName qName = new QName("http://com.soft.ws/my", "authorization");
		Object[] result = client.invoke(qName,
				new Object[] { "admin", "123456" });
		System.out.println(result[0]);
	}

4、axis调用方式

import java.net.MalformedURLException;
import java.net.URL;
import java.rmi.RemoteException;

import javax.xml.namespace.QName;
import javax.xml.rpc.ParameterMode;
import javax.xml.rpc.ServiceException;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.XMLType;

public class WsAClient {
     /**
	 * 跨平台调用Web Service出现
	 *  faultString: 服务器未能识别 HTTP 头 SOAPAction 的值: 
	 * JAX-WS规范不需要SoapAction，但是.NET需要，所以产生了这个错误。 
	 * options.setAction("目标的TargetNameSpace"+"调用的方法名");
	 */
	public static void main(String[] args) {
		String url = "http://192.168.0.101:8089/myservice?wsdl";
		Service service = new Service();
		try {
			Call call = (Call) service.createCall();
			call.setTargetEndpointAddress(new URL(url));
			// WSDL里面描述的接口名称(要调用的方法)
			call.setOperationName(new QName("http://com.soft.ws/my",
					"authorization"));
			//跨平台调用加上这个
		   call.setSOAPActionURI("http://com.soft.ws/my/authorization");
			// 接口方法的参数名, 参数类型,参数模式 IN(输入), OUT(输出) or INOUT(输入输出)
			call.addParameter("userId", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("password", XMLType.XSD_STRING, ParameterMode.IN);
			// 设置被调用方法的返回值类型
			call.setReturnType(XMLType.XSD_STRING);
			// 设置方法中参数的值
			Object result = call.invoke(new Object[] { "admin", "123456" });

			System.out.println(result.toString());
		} catch (ServiceException | RemoteException | MalformedURLException e) {
			e.printStackTrace();
		}
	}

}

5、httpClient调用方式。

（1）maven依赖如下

  <properties>
   <httpclient.version>4.5.6</httpclient.version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpclient</artifactId>
      <version>${httpclient.version}</version>
    </dependency>
  </dependencies>

(2)httpclient作为客户端调用webservice。代码如下

/*
 * Copyright (c)
 */
package test;

import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.nio.charset.Charset;

/**
 * webservice客户端
 *
 * @author David Lin
 * @version: 1.0
 * @date 2018-09-09 12:16
 */
public class SoapClient {

    public static void main(String args[]) throws Exception {
        //soap服务地址
        String url = "http://localhost:8888/ssm/Services/UserService?wsdl";
        StringBuilder soapBuilder = new StringBuilder(64);
        soapBuilder.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        soapBuilder.append("<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:web=\"http://webservice.soft.com/\">");
        soapBuilder.append("   <soapenv:Header/>");
        soapBuilder.append("       <soapenv:Body>");
        soapBuilder.append("             <web:authorization>");
        soapBuilder.append("                     <userId>").append("admin").append("</userId>");
        soapBuilder.append("                     <password>").append("123456").append("</password>");
        soapBuilder.append("               </web:authorization>");
        soapBuilder.append("    </soapenv:Body>");
        soapBuilder.append("</soapenv:Envelope>");

        //创建httpcleint对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        //创建http Post请求
        HttpPost httpPost = new HttpPost(url);
        // 构建请求配置信息
        RequestConfig config = RequestConfig.custom().setConnectTimeout(1000) // 创建连接的最长时间
                .setConnectionRequestTimeout(500) // 从连接池中获取到连接的最长时间
                .setSocketTimeout(3 * 1000) // 数据传输的最长时间10s
                .build();
        httpPost.setConfig(config);
        CloseableHttpResponse response = null;
        try {
            //采用SOAP1.1调用服务端，这种方式能调用服务端为soap1.1和soap1.2的服务
            httpPost.setHeader("Content-Type", "text/xml;charset=UTF-8");

            //采用SOAP1.2调用服务端，这种方式只能调用服务端为soap1.2的服务
            // httpPost.setHeader("Content-Type", "application/soap+xml;charset=UTF-8");
            StringEntity stringEntity = new StringEntity(soapBuilder.toString(), Charset.forName("UTF-8"));
            httpPost.setEntity(stringEntity);
            response = httpClient.execute(httpPost);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                String content = EntityUtils.toString(response.getEntity(), "UTF-8");
                System.out.println(content);

            } else {
                System.out.println("调用失败!");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (null != response) {
                response.close();
            }
            if (null != httpClient) {
                httpClient.close();
            }
        }


    }
}

返回结果为:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
	<soap:Body>
		<ns2:authorizationResponse xmlns:ns2="http://webservice.soft.com/">
			<return>success</return>
		</ns2:authorizationResponse>
	</soap:Body>
</soap:Envelope>

(3)用Jsoup提取响应数据。
maven依赖

<properties>
      <jsoup.version>1.11.3</jsoup.version>
  </properties>
  
  <dependencies>
  
    <dependency>
      <groupId>org.jsoup</groupId>
      <artifactId>jsoup</artifactId>
      <version>${jsoup.version}</version>
    </dependency>
    
  </dependencies>

代码如下:

 Document soapRes = Jsoup.parse(content);
 Elements returnEle = soapRes.getElementsByTag("return");

 System.out.println("调用结果为:"+returnEle.text());