java客户端调用webservice的两种方式

在实际系统集成开发的过程中，我们会经常遇到调接口的需求。下面整理了一下两种调webservice（SOAP）的常用代码。

一、基于http和SOAP协议（不用axis和cxf框架）

        URL wsUrl = new URL("http://ip:port/servicename.asmx?wsdl");

        HttpURLConnection conn = (HttpURLConnection) wsUrl.openConnection();

        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "text/xml;charset=UTF-8");

        OutputStream os = conn.getOutputStream();
        String temp = "{\"aaa\":\"123\",\"sss\":\"123\"}";
        //请求体
        String soap = "<?xml version=\"1.0\" encoding=\"utf-8\"?><soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:sso=\"http://temp.cn\">"
        + "<soapenv:Header/>"
        + "<soapenv:Body>"
        + "<sso:test>"
        + "<sso:info>"+temp+"</sso:info>"
        + "</sso:test>"
        + "</soapenv:Body>"
        + "</soapenv:Envelope>";

        
        os.write(soap.getBytes());

        InputStream is = conn.getInputStream();

        byte[] b = new byte[1024];
        int len = 0;
        String s = "";
        while((len = is.read(b)) != -1){
            String ss = new String(b,0,len,"UTF-8");
            s += ss;
        }
        System.out.println(s);
        
        
        is.close();
        os.close();
        conn.disconnect();

上面的soap内容可以通过SOAPUI工具来生成。到时候拼接即可。这个最大的好处是不需要引入一些框架jar包。

二、基于axis的调用

需引入一些jar包

import javax.xml.rpc.ParameterMode; 
import javax.xml.rpc.ServiceException;
import javax.xml.rpc.encoding.XMLType;
import org.apache.axis.client.Call;  
import org.apache.axis.client.Service;  
import javax.xml.namespace.QName;

        String info1="{\"aaa\":\"111\",\"sss\":\"123\"}";
        String ret1 = " ";
         try
        {
          Service service = new Service();
          Call call = (Call)service.createCall();
          call.setTargetEndpointAddress(new URL("http://ip:port/Service.asmx"));
          call.setOperationName(new QName("http://test.cn", "test"));//切忌不是test.cn/
          call.addParameter(new QName("http://test.cn", "info"), XMLType.SOAP_STRING, ParameterMode.IN);
          call.setReturnType(XMLType.SOAP_STRING);
          call.setUseSOAPAction(true);
          call.setSOAPActionURI("http://test.cn/" + "test");
          try {
            ret1 = (String)call.invoke(new Object[] { info1 });
            System.out.println(ret1);
            if(ret1.equals("")){
    			ret1=" ";
    		}
          } catch (IOException e) {
            ret1 = " ";
            e.printStackTrace();
          }
        }
        catch (MalformedURLException e) {
          ret1 = " ";
          e.printStackTrace();
        }
        catch (ServiceException e)
        {
          ret1 = " ";
          e.printStackTrace();
        }

这样，基本的调用就实现了。

当然，现在流行的调用方式还有基于cxf的调用。此处就不列了。